83_FR_23480 83 FR 23382 - Grocery Manufacturers Association; Denial of Food Additive Petition

83 FR 23382 - Grocery Manufacturers Association; Denial of Food Additive Petition

DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration

Federal Register Volume 83, Issue 98 (May 21, 2018)

Page Range23382-23392
FR Document2018-10715

The Food and Drug Administration (FDA or we) is denying a food additive petition (FAP 5A4811), submitted by the Grocery Manufacturers Association (GMA), requesting that the food additive regulations be amended to provide for the safe use of partially hydrogenated vegetable oils (PHOs) in certain food applications. We are denying the petition because we have determined that the petitioner did not provide sufficient information for us to conclude that the requested uses of PHOs are safe. To allow the food industry sufficient time to identify suitable replacement substances for the petitioned uses of PHOs, elsewhere in this issue of the Federal Register we have extended the compliance date for certain uses of PHOs, including the conditions of use covered by the FAP.

Federal Register, Volume 83 Issue 98 (Monday, May 21, 2018)
[Federal Register Volume 83, Number 98 (Monday, May 21, 2018)]
[Proposed Rules]
[Pages 23382-23392]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-10715]


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DEPARTMENT OF HEALTH AND HUMAN SERVICES

Food and Drug Administration

21 CFR Part 172

[Docket No. FDA-2015-F-3663]


Grocery Manufacturers Association; Denial of Food Additive 
Petition

AGENCY: Food and Drug Administration, HHS.

ACTION: Notification; denial of petition.

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SUMMARY: The Food and Drug Administration (FDA or we) is denying a food 
additive petition (FAP 5A4811), submitted by the Grocery Manufacturers 
Association (GMA), requesting that the food additive regulations be 
amended to provide for the safe use of partially hydrogenated vegetable 
oils (PHOs) in certain food applications. We are denying the petition 
because we have determined that the petitioner did not provide 
sufficient information for us to conclude that the requested uses of 
PHOs are safe. To allow the food industry sufficient time to identify 
suitable replacement substances for the petitioned uses of PHOs, 
elsewhere in this issue of the Federal Register we have extended the 
compliance date for certain uses of PHOs, including the conditions of 
use covered by the FAP.

DATES: This document is applicable May 21, 2018. Submit either 
electronic or written objections and requests for a hearing on the 
document by June 20, 2018. Late, untimely objections will not be 
considered. See section VIII for further information on the filing of 
objections.

ADDRESSES: You may submit objections and requests for a hearing as 
follows.

Electronic Submissions

    Submit electronic objections in the following way:
     Federal eRulemaking Portal: https://www.regulations.gov. 
Follow the instructions for submitting comments. Objections submitted 
electronically, including attachments, to https://www.regulations.gov 
will be posted to the docket unchanged. Because your objection will be 
made public, you are solely responsible for ensuring that your 
objection does not include any confidential information that you or a 
third party may not wish to be posted, such as medical information, 
your or anyone else's Social Security number, or confidential business 
information, such as a manufacturing process. Please note that if you 
include your name, contact information, or other information that 
identifies you in the body of your objection, that information will be 
posted on https://www.regulations.gov.
     If you want to submit an objection with confidential 
information that you do not wish to be made available to the public, 
submit the objection as a written/paper submission and in the manner 
detailed (see ``Written/Paper Submissions'' and ``Instructions'').
     The https://www.regulations.gov electronic filing system 
will accept objections until midnight Eastern Time at the end of June 
20, 2018.

Written/Paper Submissions

    Submit written/paper submissions as follows:
     Mail/Hand delivery/Courier (for written/paper 
submissions): Dockets Management Staff (HFA-305), Food and Drug 
Administration, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852.
     For written/paper objections submitted to the Dockets 
Management Staff, FDA will post your objection, as well as any 
attachments, except for information submitted, marked and identified, 
as confidential, if submitted as detailed in ``Instructions.''
     Objections received by mail/hand delivery/courier (for 
written/paper

[[Page 23383]]

submissions) will be considered timely if they are postmarked or the 
delivery service acceptance receipt is on or before June 20, 2018.
    Instructions: All submissions received must include the Docket No. 
FDA-2015-F-3663 for ``Grocery Manufacturers Association; Denial of Food 
Additive Petition.'' Received objections, those filed in a timely 
manner (see ADDRESSES), will be placed in the docket and, except for 
those submitted as ``Confidential Submissions,'' publicly viewable at 
https://www.regulations.gov or at the Dockets Management Staff between 
9 a.m. and 4 p.m., Monday through Friday.
     Confidential Submissions--To submit an objection with 
confidential information that you do not wish to be made publicly 
available, submit your objections only as a written/paper submission. 
You should submit two copies total. One copy will include the 
information you claim to be confidential with a heading or cover note 
that states ``THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION.'' The 
Agency will review this copy, including the claimed confidential 
information, in its consideration of comments. The second copy, which 
will have the claimed confidential information redacted/blacked out, 
will be available for public viewing and posted on https://www.regulations.gov. Submit both copies to the Dockets Management 
Staff. If you do not wish your name and contact information to be made 
publicly available, you can provide this information on the cover sheet 
and not in the body of your comments and you must identify this 
information as ``confidential.'' Any information marked as 
``confidential'' will not be disclosed except in accordance with 21 CFR 
10.20 and other applicable disclosure law. For more information about 
FDA's posting of comments to public dockets, see 80 FR 56469, September 
18, 2015, or access the information at: https://www.thefederalregister.org/fdsys/pkg/FR-2015-09-18/pdf/2015-23389.pdf.
    Docket: For access to the docket to read background documents or 
the electronic and written/paper comments received, go to https://www.regulations.gov and insert the docket number, found in brackets in 
the heading of this document, into the ``Search'' box and follow the 
prompts and/or go to the Dockets Management Staff, 5630 Fishers Lane, 
Rm. 1061, Rockville, MD 20852.

FOR FURTHER INFORMATION CONTACT: Ellen Anderson, Center for Food Safety 
and Applied Nutrition (HFS-265), Food and Drug Administration, 5001 
Campus Dr., College Park, MD 20740-3835, 240-402-1309.

SUPPLEMENTARY INFORMATION:

I. Introduction

    In a document published in the Federal Register on October 28, 2015 
(80 FR 65978), we announced that we filed FAP 5A4811 (``petition'') 
submitted by the Grocery Manufacturers Association, 1350 I St. NW, 
Suite 300, Washington, DC 20005 (``petitioner''). The petitioner 
requested that we amend the food additive regulations in 21 CFR part 
172 Food Additives Permitted for Direct Addition to Food for Human 
Consumption to provide for the safe use of partially hydrogenated 
vegetable oils (PHOs) in the following food applications at specified 
maximum use levels: as a carrier or component thereof for flavors or 
flavorings, as a diluent or component thereof for color additives, as 
an incidental additive or processing aid, and as a direct additive in 
approximately 60 food categories. The petition was submitted in 
response to FDA's declaratory order issued on June 17, 2015 (80 FR 
34650), announcing our final determination that there is no longer a 
consensus among qualified experts that PHOs are generally recognized as 
safe for any use in human food. In the declaratory order, we invited 
submission of food additive petitions with scientific evidence for one 
or more specific uses of PHOs for which the petitioner believes that 
safe conditions of use may be prescribed (as further discussed in 
section II).
    FAP 5A4811 was submitted by GMA to FDA on June 11, 2015. During our 
initial review, we determined that the petition did not contain an 
environmental assessment as required under 21 CFR 25.15(a); therefore, 
we informed GMA that their petition did not meet the minimum 
requirements for filing in accordance with 21 CFR 171.1(c). On 
September 18, 2015, GMA resubmitted a complete FAP 5A4811, which we 
subsequently filed on October 1, 2015. During our initial review of FAP 
5A4811, we identified several deficiencies that required resolution by 
GMA for us to continue with our review. We issued a letter to GMA on 
March 21, 2016, explaining the additional information required to 
resolve the petition's deficiencies. On May 5, 2016, GMA submitted a 
partial response to the deficiencies. The petition was then placed in 
abeyance by FDA, consistent with our procedures for food additive 
petitions.\1\ The petitioner and FDA met several times in the months 
following to discuss the deficiencies.
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    \1\ Abeyance is an administrative category of petitions that are 
filed but non-active because of deficiencies that were identified 
during FDA's review. A petition remains in abeyance until either the 
petitioner provides FDA with the required information, requests a 
final decision based on the data currently in the petition, or 
requests withdrawal of the petition.
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    On March 7, 2017, the petitioner submitted a substantive amendment 
to FAP 5A4811 that addressed the deficiencies identified by FDA. In 
accordance with 21 CFR 171.6, the petition was assigned a new filing 
date of March 7, 2017. The amended petition contained significant 
revisions to the proposed uses, exposure estimate, and safety 
assessment of PHOs. The revised petitioned uses of PHOs were limited to 
the following: (1) As a solvent or carrier for flavoring agents, flavor 
enhancers, and coloring agents; (2) as a processing aid, and (3) as a 
pan release agent for baked goods. Based on the revisions, the 
petitioner asserted that the amended uses of PHOs would present a de 
minimis increase in risk (in other words, a negligible increase in 
risk) and, therefore, are safe under the conditions of intended use. 
References to the ``petition'' henceforth in this document will denote 
the amended petition received on March 7, 2017.

II. Background

A. Statutory and Regulatory Requirements Regarding Food Additives

    The Federal Food, Drug, and Cosmetic Act (FD&C Act) defines ``food 
additive,'' in relevant part, as any substance, the intended use of 
which results or may reasonably be expected to result, directly or 
indirectly, in its becoming a component of food, if such substance is 
not generally recognized by experts as safe under the conditions of its 
intended use (section 201(s) of the FD&C Act (21 U.S.C. 321(s))). Food 
additives are deemed unsafe and prohibited except to the extent that 
FDA approves their use (sections 301(a) and (k) (21 U.S.C. 331(a) and 
(k)) and 409(a) (21 U.S.C. 348(a)) of the FD&C Act.)
    The FD&C Act provides a process through which persons who wish to 
use a food additive may submit a petition proposing the issuance of a 
regulation prescribing the conditions under which the additive may be 
safely used (section 409(b)(1) of the FD&C Act). When FDA concludes 
that a proposed use of a food additive is safe, we issue a regulation 
authorizing a specific use of the substance.

B. Relevant Regulatory History of PHOs

    On November 8, 2013, FDA issued a document (the tentative 
determination,

[[Page 23384]]

78 FR 67169), announcing our tentative determination that PHOs are no 
longer generally recognized as safe (GRAS) under any condition of use 
in food and therefore are food additives subject to section 409 of the 
FD&C Act. Because PHOs are the primary dietary source of industrially-
produced trans fatty acids (IP-TFA), FDA's evaluation of the GRAS 
status of PHOs centered on the trans fatty acid (TFA, also referred to 
as ``trans fat'') component of these fats and oils. The tentative 
determination cited current scientific evidence of significant human 
health risks, namely an increased risk in coronary heart disease (CHD), 
associated with the consumption of IP-TFA (78 FR 67169 at 67172). The 
scientific evidence included results from controlled feeding studies on 
trans fatty acid consumption in humans, findings from long-term 
prospective epidemiological studies, and the opinions of expert panels 
that there is no threshold intake level for IP-TFA that would not 
increase an individual's risk of CHD (78 FR 67169 at 67172). Based on 
the evidence outlined in the tentative determination, we determined 
that there is no longer a consensus among qualified experts that PHOs 
are safe for human consumption (i.e., PHOs do not meet the GRAS 
criteria.) The tentative determination also requested interested 
parties to submit comments and additional scientific data related to 
our tentative determination that PHOs are no longer GRAS (78 FR 67169 
at 67174).
    We received over 6000 comments in response to the tentative 
determination. We reviewed the comments before issuing our final 
determination as a declaratory order published on June 17, 2015 (the 
declaratory order, 80 FR 34650). The declaratory order included four 
major provisions: (1) PHOs are not GRAS for any use in human food; (2) 
for the purposes of the declaratory order, FDA defined PHOs as those 
fats and oils that have been hydrogenated, but not to complete or near 
complete saturation, and with an iodine value greater than 4 as 
determined by an appropriate method; (3) any interested party may seek 
food additive approval for one or more specific uses of PHOs with data 
demonstrating a reasonable certainty of no harm of the proposed use(s); 
and (4) FDA established a compliance date of June 18, 2018 (80 FR 34650 
at 34651).
    In our declaratory order finding that PHOs are no longer GRAS for 
any use in human food, we acknowledged that scientific knowledge 
advances and evolves over time. The declaratory order invited 
submission of scientific evidence as part of food additive petitions 
under section 409 of the FD&C Act for one or more specific uses of PHOs 
for which industry or other interested individuals believe that safe 
conditions of use may be prescribed. We also established a three-year 
delayed compliance date (compliance required no later than June 18, 
2018) to provide time for submission and review and, if applicable 
requirements are met, approval of food additive petitions for uses of 
PHOs (80 FR 34650 at 34668).

III. Evaluation of Safety

    A food additive cannot be approved for use unless the data 
presented to us establish that the food additive is safe for that use 
(section 409(c)(3)(A) of the FD&C Act). To determine whether a food 
additive is safe, the FD&C Act requires us to consider among other 
relevant factors: (1) Probable consumption of the additive; (2) 
cumulative effect of such additive in the diet of man or animals, 
taking into account any chemically or pharmacologically related 
substances in the diet; and (3) safety factors generally recognized by 
experts as appropriate for the use of animal experimentation data 
(section 409(c)(5) of the FD&C Act). Our determination that a food 
additive use is safe means that there is a ``reasonable certainty in 
the minds of competent scientists that the substance is not harmful 
under the intended conditions of use'' (Sec.  170.3(i) (21 CFR 
170.3(i))).
    FAP 5A4811 is not a typical food additive petition in that it is 
requesting food additive approval for existing uses of PHOs that 
industry, independent of FDA, had concluded were GRAS, but FDA 
subsequently determined such uses are not GRAS. Most food additive 
petitions seek premarket approval for new uses of food additives. 
Additionally, the approach that we normally use to evaluate safety of a 
direct food additive is not applicable for assessing the safety of IP-
TFA in PHOs. Food additives are typically evaluated based on 
toxicological studies in animals, as described in our guidance, 
Toxicological Principles for the Safety of Assessment of Food 
Ingredients (also known as Redbook 2000).\2\ However, key scientific 
evidence for the association of trans fat and CHD is based on human 
studies, including controlled feeding trials of trans fat intake and 
blood cholesterol levels in humans and long-term, prospective 
observational studies of trans fat intake and CHD risk in human 
populations (Ref. 1).
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    \2\ Redbook 2000 is available at https://www.fda.gov/downloads/Food/GuidanceRegulation/UCM222779.pdf.
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    To establish with reasonable certainty that a food additive is not 
harmful under its intended conditions of use, we typically consider the 
projected human dietary exposure to the additive, the additive's 
toxicological data provided by the petitioner, and other relevant 
information (such as published literature) available to us. FDA 
scientists use these toxicological data (usually derived from animal 
and in vitro studies) to determine a no-observed effect level or a no-
observed-adverse-effect-level, apply an appropriate safety factor to 
account for differences between animals and humans and differences in 
sensitivity among humans, and calculate the acceptable daily intake 
(ADI) for the food additive. The ADI is usually expressed in milligrams 
of food additive per kilogram body weight of humans. We compare an 
individual's estimated daily intake (EDI) of the additive from all food 
sources to the ADI established by toxicological data. The EDI is 
determined based on the amount of the additive proposed for use in 
particular foods and the amount of those foods consumed containing the 
additive, and on the amount of the additive from all other dietary 
sources. We typically use the EDI for the 90th percentile consumer of a 
food additive as a measure of high chronic dietary exposure. A food 
additive is generally considered safe for its intended uses if the EDI 
of the additive is less than the ADI. This approach assumes that a 
physiological threshold may exist below which exposure to an additive 
will not cause harm. In the case of PHOs, which contribute IP-TFA to 
the diet, the main toxicological data available to assess safety 
consists of controlled feeding trials and prospective observational 
studies in humans where the adverse health outcomes associated with the 
additive are increased CHD risk and other non-cancer risks (e.g., 
stroke). To receive approval for the petitioned uses of PHOs, the 
petitioner has the responsibility to provide scientific evidence that 
establishes that the intended uses of PHOs are safe, including the 
expected dietary exposure to trans fat resulting from the intended uses 
of PHOs.
    Our declaratory order references three safety memoranda prepared by 
FDA that document our review of the available scientific evidence 
regarding human health effects of trans fat, focusing on the adverse 
effects of trans fat on risk of CHD (Refs. 2-4). In addition, we 
previously reviewed the health effects of IP-TFA and PHOs in support of 
our tentative determination that PHOs are not GRAS in food (78 FR 
67169) and in

[[Page 23385]]

1999 and 2003 in support of our proposed and final rules requiring 
declaration of trans fat in nutrition labeling of food (64 FR 62746 and 
68 FR 41434). The safety reviews for the declaratory order, together 
with the previous safety reviews of IP-TFA and PHOs, provide important 
background scientific information for our review of FAP 5A4811.
    The petition contains a review of recent scientific literature and 
expert opinions on trans fat consumption. GMA asserted that this 
information supports the following three conclusions, which are their 
reasons why they believe the petitioned uses of PHOs are safe:
    1. ``The conservatively estimated probability of coronary heart 
disease risk falls below the probable de minimis non-cancer risk 
range.'' \3\
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    \3\ As discussed in section E, the petitioner calculates what it 
considers to be de minimis risks for non-cancer health outcomes.
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    2. ``iTFA \4\ exposure from the petitioned uses of PHOs (i.e., 
0.05%en [total energy intake per day]) is well below exposure levels in 
controlled feeding trials, and effects at these low iTFA exposures 
levels cannot be empirically established based on the currently 
available evidence.''
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    \4\ The petitioner uses the abbreviation iTFA to refer to 
industrially-produced TFA in the petition.
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    3. ``The incremental increase in iTFA intake of 0.05%en from the 
petitioned uses of PHOs is infinitesimally small and negligible in 
comparison to existing background dietary TFA exposure from intrinsic 
sources.''

(Petition, pp. 116-119)
    In this petition denial, we discuss our evaluation of the 
petitioner's request and supporting information in section IV organized 
according to the following headings: A. Chemical Identity, Intended 
Technical Effects, and Petitioned Uses of PHOs; B. Estimated Exposure 
to Trans Fat; C. Recent Scientific Literature and Expert Opinions on 
Trans Fat Consumption; D. Recent Threshold Dose-Response Research; and 
E. Risk Estimates and Safety Arguments. Each of these sections provides 
a summary of the information provided by the petitioner followed by our 
evaluation of that information, prefaced with ``FDA Assessment.'' 
Additional information regarding our evaluation of the petition can be 
found in our three review memoranda (Refs. 5-7).

IV. FDA's Review of FAP 5A4811

A. Chemical Identity, Intended Technical Effects, and Petitioned Uses 
of PHOs

    The PHOs that are the subject of FAP 5A4811 are made from the 
following vegetable oils: Soy, cottonseed, coconut, canola, palm, palm 
kernel, and sunflower oils, or blends of these oils, and consist of up 
to 60 percent trans fatty acids. As discussed in section I, GMA 
requested approval of three uses of PHOs, which are as follows:
     PHO, or a blend of PHOs, used as a solvent or carrier, or 
a component thereof, for flavoring agents, flavor enhancers, and 
coloring agents intended for food use, provided the PHOs in the solvent 
or carrier contribute no more than 150 parts per million (ppm) (150 
milligrams per kilogram (mg/kg)) IP-TFA to the finished food as 
consumed;
     PHO, or a blend of PHOs, used as a processing aid, or a 
component thereof, provided the PHOs in the processing aid contribute 
no more than 50 ppm (50 mg/kg) IP-TFA to the finished food as consumed;
     PHO, or a blend of PHOs, used as a pan release agent for 
baked goods at levels up to 0.2 grams/100 grams (0.2 g/100 g) in pan 
release spray oils, provided the PHO contributes no more than 0.14 g 
IP-TFA/100 g spray oil.
    These proposed uses excluded dietary supplements. The physical and 
technical effects of the petitioned uses of PHOs were specified as: 
Release agents, either alone or in combination with other components 
(Sec.  170.3(o)(18)); processing aids or components thereof (Sec.  
170.3(o)(24)); and as solvents, carriers and vehicles for fat soluble 
coloring agents, flavoring agents, and flavor enhancers (Sec.  
170.3(o)(27)).
FDA Assessment
    To better understand how PHOs would be used as processing aids, we 
requested that the petitioner provide specific examples. In an email 
dated May 15, 2017, the petitioner provided several examples of how 
PHOs may be used as processing aids. Many of the petitioner's examples 
involved the use of PHOs as a topical coating to prevent rancidity 
(e.g., PHO-coated almond slices or candy pieces used as ingredients in 
cookies). We view this use of PHOs as having an ongoing technical 
effect in food (e.g., to prevent rancidity and oxidation) and, 
therefore, we do not agree that this use would be considered a 
processing aid in accordance with Sec. Sec.  170.3(o)(24) and 
101.100(a)(3)(ii) (21 CFR 101.100(a)(3)(ii)). Because we are denying 
this petition, we did not need to resolve this issue regarding 
characterization of the technical or functional effect of these 
additives.

B. Estimated Exposure to Trans Fat

    The petitioner provided exposure estimates for TFA from the 
petitioned uses of PHOs and from intrinsic (i.e., naturally-occurring) 
sources such as dairy and meat from ruminant animals. To estimate 
exposure, the petitioner used food disappearance data from 2014 
compiled by the U.S. Department of Agriculture (USDA) Economic Research 
Service, food consumption data from either the 2007-2010 or 2009-2012 
National Health and Nutrition Examination Surveys (NHANES), and the 
intrinsic concentrations of TFA in the USDA National Nutrient Database 
for Standard Reference Release 27. The petitioner estimated the 
exposure to naturally-occurring TFA from intrinsic sources for the U.S. 
population (aged 2 years or more) to be 1.04 grams/person/day (g/p/d) 
at the mean and 1.91 g/p/d at the 90th percentile. If expressed as a 
percentage of total energy intake per day (%en), based on a 2000 
calorie daily diet, the exposure to TFA from intrinsic sources would be 
0.46%en at the mean and 0.75%en at the 90th percentile for the U.S 
population. The petitioner estimated the cumulative exposure to IP-TFA 
from all petitioned uses of PHOs in foods for the U.S. population aged 
2 years or more to be 0.121 g/p/d (0.05%en) at the mean and 0.122 g/p/d 
(0.05%en) at the 90th percentile.
FDA Assessment
    FDA agrees with the petitioner's estimated exposure to TFA from 
intrinsic sources, and we have no concerns regarding the general 
methodology used by the petitioner to estimate exposure to IP-TFA from 
the petitioned uses of PHOs. However, we believe the petitioner likely 
underestimated exposure to IP-TFA from the petitioned uses of PHOs for 
various reasons, such as their determination that 43 percent of the 
U.S. diet consists of processed foods, which we believe is too low, and 
not including all relevant NHANES food codes in their exposure estimate 
(Ref. 5). Although the petitioner's exposure estimate could be refined, 
we consider it sufficient for approximating exposure from the 
petitioned uses of PHOs.

C. Recent Scientific Literature and Expert Opinions on Trans Fat 
Consumption

    FAP 5A4811 included sections on dietary guidelines and expert panel 
opinions pertaining to trans fat consumption. In addition, the petition

[[Page 23386]]

presented a summary of studies assessing the effects of dietary TFA on 
intermediate biomarkers such as low-density lipoprotein cholesterol 
(LDL-C), high-density lipoprotein cholesterol (HDL-C), and other 
emerging biomarkers of CHD risk, and the association of dietary TFA 
intake with risk of CHD and risk of adverse health outcomes other than 
CHD (e.g., stroke, metabolic syndrome). Controlled feeding trials, 
prospective observational studies, and meta-analyses of these studies 
were included in the petitioner's scientific literature review.
FDA Assessment
    As discussed in our review memorandum (Ref. 7), we found that the 
petitioner provided incomplete information on certain topics or 
misinterpreted some scientific conclusions.
1. Dietary Guidelines and Expert Panel Reviews
    The petition discussed the major expert panel reports on the health 
effects of trans fat consumption from the U.S., Australia, Canada, the 
United Kingdom, the World Health Organization (WHO), the Food and 
Agriculture Organization, and the European Food Safety Authority. We 
note that while the petition provided a generally accurate summary of 
these expert reports, some important information was missing or 
understated. For example, the petition omits the expert opinions on the 
role of HDL-C as a biomarker for CHD. The petition also omits that, in 
addition to the Institute of Medicine's 2005 report (Ref. 8), many 
other expert panels have concluded that TFA has a progressive and 
linear adverse effect on blood lipids and associated CHD risk. 
Furthermore, the petition understated the recommendation from several 
expert panels that trans fat intake should be kept as low as possible 
by specifically limiting intake of IP-TFA from PHOs.
2. Effect of Changes In Trans Fat Intake on LDL-C and HDL-C
    The petition identified five meta-analysis studies (which are 
combined analyses of multiple feeding trials) that quantified the 
effect of changes in trans fat intake on LDL-C and HDL-C in the blood 
of human test subjects. The petition's summary of these studies was 
appropriate; however, we note that two available meta-analyses studies 
were not included in the petition's discussion: Zock and co-workers 
(Refs. 9-11) and Brouwer (Ref. 12). In particular, the 2016 meta-
analysis by Brouwer was an important study, commissioned by the WHO 
Nutrition Guidance Expert Advisory Group (NUGAG) Subgroup on Diet and 
Health, that affirmed the linear, progressive effect of trans fat 
intake on blood cholesterol levels (Ref. 12).
    The petition mentioned another meta-analysis of newer studies 
conducted by Hafekost et al. (2015) which reported no significant 
effect on LDL-C from a 1%en TFA intake (including both naturally-
occurring TFA and IP-TFA) in exchange for cis-monounsaturated fatty 
acids (cis-MUFA) (Ref. 13). The petition claimed that these results 
support the potential for a threshold trans fat intake below which no 
significant effect on blood lipids is observed. However, we disagree 
with the petitioner's interpretation of this study's conclusions (Ref. 
7). We note that the criteria for inclusion of feeding trials in this 
meta-analysis were not rigorous. In several of the included studies, 
the diets were not fully controlled. We also note that Hafekost et al. 
did not conclude that their results supported the potential for a safe 
threshold intake level of TFA. Rather, the authors stated, ``An 
increase in LDL was consistent with the results of Brouwer et al., who 
identified a significant increase in LDL cholesterol with a percent 
increase in the intake of industrial TFA.'' Furthermore, Hafekost et 
al. conducted an additional analysis, including the earlier Brouwer et 
al. meta-analysis results together with their analysis of newer studies 
alone. The petition did not discuss these additional analyses. The 
combined results for the newer studies alone, together with the earlier 
meta-analysis, showed a statistically significant increase in LDL-C due 
to an increase of 1%en intake from TFA. In their overall summary, 
Hafekost et al. stated, ``The results of the current review are 
consistent with previous evidence which indicates a detrimental effect 
of consumption of TFA on changes in LDL and HDL blood cholesterol'' 
(Ref. 13).
    Regarding HDL-C and CHD risk, the petition underemphasized the 
impact of trans fat intake on HDL-C. We note that the observed decrease 
in HDL-C due to TFA intake is consistently reported across the existing 
body of TFA research and that HDL-C has been recognized as a major risk 
factor for CHD (Ref. 7).
3. Prospective Observational Studies
    The petition reviewed the results of prospective observational 
studies that estimate the association of long-term, habitual TFA intake 
with CHD risk in large, free-living populations. The petition reviewed 
five meta-analysis studies (that provided combined analyses of several 
individual prospective observational studies). The petition stated that 
the results of a recent meta-analysis by de Souza et al. in 2015 (Ref. 
14) were consistent with previous meta-analyses in finding a 
statistically significant increased risk of CHD when comparing high to 
low TFA intake. Regarding individual prospective observational studies, 
the petition stated that, ``The results from these studies, while not 
able to demonstrate causality, provide supporting evidence that, 
although a relationship between increased CHD risk and high levels of 
TFA intake exists, this observed relationship is largely based on 
comparisons of differences in TFA intake above 1%en and has not been 
established at lower levels of intake.''
    We note that the overall results of the meta-analyses and recently 
published prospective observational studies were generally summarized 
accurately in the petition. However, the petition tended to understate 
the strength of the evidence from the observational studies reviewed. 
In particular, the meta-analysis by de Souza et al., a rigorously 
conducted study commissioned by WHO NUGAG, stated that the ``positive 
associations between trans fat intake and CHD and CHD mortality'' were 
``reliable and strong'' and provided supplementary analyses supporting 
a progressive and linear association of TFA intake and CHD risk (Ref. 
14). Additionally, recently published studies by Li et al. in 2015 
(Ref. 15) and Wang et al. in 2016 (Ref. 16), with long-term followup 
and increased statistical power, show significant increases in CHD or 
cardiovascular disease (CVD) risk at lower increments of TFA intake 
than the 1%en stated by the petitioner.
4. Other Health Outcomes
    The petitioner concluded, after reviewing recent scientific 
literature, that there is limited, inconsistent, and/or weak evidence 
for any effects of trans fat intake on other health outcomes including 
stroke, all-cause mortality, cancer, and metabolic syndrome. We do not 
agree with the petitioner's conclusion, in particular regarding stroke. 
In support of the declaratory order, we reviewed several well-conducted 
studies that provided a reasonable basis to conclude that TFA intake is 
associated with an increased risk of ischemic stroke (a blockage of 
blood flow to the brain) (Ref. 2). Furthermore, in our review 
memorandum for this petition, we described more recent studies that 
provide additional evidence supporting the association of TFA with 
stroke, as well as total mortality and elements of metabolic syndrome 
(Ref. 7).

[[Page 23387]]

D. Recent Threshold Dose-Response Research

    The petition acknowledged that all five of the aforementioned meta-
analyses (see section C) relied on a linear, no-threshold dose-response 
relationship between TFA intake and blood levels of LDL-C and HDL-C, 
which assumes any amount of TFA greater than 0%en causes adverse 
effects on blood cholesterol levels. The petition stated, ``Recent 
research suggests that a non-threshold linear dose-response model 
overlooks the complexities of the physiological effects of 
macronutrients and other contributing factors to LDL-C levels besides 
TFAs.'' In particular, the petition cited two recent articles to 
support the claims that a linear dose-response model is inappropriate 
for assessing the effects of TFA consumption on blood lipids, and that 
a threshold level of trans fat intake exists (Refs. 17 and 18). In the 
first publication, Reichard and Haber (Ref. 17) presented and evaluated 
a hypothesis for the biological mode of action (MOA) for the effect of 
TFA on LDL-C based on animal studies. According to the petition, ``. . 
. the authors concluded the key events in the MOA are the increased 
production of very low density-lipoprotein (VLDL) and decreased LDL-
clearance due to a reduction in the LDL-C mediated receptor activity.'' 
The authors further concluded the effect of TFA on LDL-C is non-linear 
and there is evidence that either a threshold exists or the dose-
response slope is very shallow at low dose levels (Ref. 17).
    In the second article, Allen et al. (Ref. 18) conducted a meta-
regression study of human controlled feeding trials, that considered 
both linear and nonlinear dose-response models to assess the effect of 
IP-TFA intake on LDL-C and determine which shape fit best with the MOA 
proposed by Reichard and Haber based on animal studies. (In this case, 
the meta-regression is a meta-analysis that focuses on dose-response 
relationships.) The Allen et al. meta-regression used an evidence map 
to identify additional experimental data for the effect of IP-TFA 
intake on LDL-C, particularly in the low dose region of the response 
curve where IP-TFA intake is between zero and 3%en (Ref. 19). According 
to Allen et al., an S-shaped model with an assumed threshold at low IP-
TFA doses explained more of the study-to-study variability compared to 
the linear dose-response model (Ref. 18). Using assumptions about 
intra-individual measurement variation for LDL-C and the S-shaped 
model, the authors concluded that the change in LDL-C associated with a 
change in IP-TFA intake of 2.2%en represented a biologically 
meaningless change (Ref. 18). The petition stated that this analysis 
supports the existence of a threshold level of IP-TFA intake, below 
which negligible changes in LDL-C would occur.
FDA Assessment
    We do not agree that these two studies cited by the petitioner 
provide convincing evidence to refute a linear dose-response or provide 
convincing evidence of a threshold in the effect of IP-TFA on LDL-C. In 
our review, we identified several design flaws and questionable data 
interpretations associated with these two studies (Ref. 7). One major 
concern about the MOA paper (Ref. 17) is that the authors relied 
largely on data from laboratory animal models to hypothesize an MOA 
that suggests the existence of a threshold effect of TFA on LDL-C in 
humans, despite the differences in biological response to dietary fats 
and fatty acid metabolism between humans and the animal species used in 
the study (e.g., rodents). The authors acknowledged that trans fatty 
acids such as elaidic acid do not increase serum LDL-C in hamsters, and 
suggest that animal models may underestimate the effect of TFA in 
humans (Ref. 17).\5\
---------------------------------------------------------------------------

    \5\ The scientific evidence that PHOs are no longer GRAS for use 
in food was not based on animal studies, such as those used in the 
Reichard and Haber MOA, but rather included results from controlled 
feeding studies on trans fatty acid consumption in humans, findings 
from long-term prospective epidemiological studies in human 
populations, and the opinions of expert panels that there is no 
threshold intake level for IP-TFA that would not increase an 
individual's risk of CHD (78 FR 67169 at 67172).
---------------------------------------------------------------------------

    Regarding the meta-regression paper (Ref. 18), we found that 
duplicate data points were erroneously used in the analysis; the 
validity of data points for low TFA levels below 3%en was questionable, 
and the low TFA data did not come from PHO test diets; and incorrect 
variances were applied in the weighting of the data based on the study 
designs (Ref. 7). We also question the authors' suggestion that the 
within person, day-to-day variability of blood LDL-C levels can be used 
to represent the minimum increment in LDL-C that is adverse (Ref. 7). 
Additionally, we note that the authors' proposed S-shaped dose-response 
model that levels off at high trans fat doses (above 3%en) is not 
consistent with the results of numerous controlled feeding trials of 
IP-TFA at higher doses or with prospective observational studies which 
show increases in serum LDL-C levels or CHD risk with higher intakes of 
trans fat (Ref. 7).

E. Risk Estimates and Safety Arguments

    The petition contained an estimate of ``hypothetical change'' in 
CHD risk associated with 0.05%en IP-TFA intake (the daily amount of 
energy from IP-TFA contributed by the petitioned uses of PHOs) that was 
based on FDA's four deterministic quantitative risk assessment methods 
referenced in the declaratory order (Ref. 4). The petitioner stated 
that they included this analytical approach in the petition ``for 
expediency and at the request of FDA'', although the petition 
questioned the validity of a linear-no threshold dose-response model 
for IP-TFA intake and LDL-C and HDL-C on which the FDA method is based. 
The deterministic quantitative risk assessment approach used by the 
petitioner estimated the change in CHD risk due to effects on blood 
lipoproteins from controlled feeding trials, and also estimated the 
change in CHD risk using direct observations of CHD from prospective 
studies when there is an isocaloric replacement of cis-MUFA with IP-TFA 
in the diet. The petitioner estimated that the change in CHD risk 
associated with a 0.05%en added IP-TFA intake from petitioned uses 
ranged from 0.062 percent to 0.665 percent depending on the risk method 
used. When expressed as a population-based risk estimate, the annual 
probability of CHD cases per 100,000 U.S. adults aged 35 and older 
ranged from 0.42 to 4.54. In other words, for every 100,000 U.S. 
adults, there could be up to 4.54 additional cases (fatal and non-
fatal) of CHD attributed to an intake of 0.05%en IP-TFA from the 
petitioned uses of PHOs.
    The petition asserts a standard of ``de minimis risk.'' According 
to the petitioner, a de minimis risk implies that a risk is so small 
that it should be ignored, and the petitioned use should be considered 
safe. The petitioner referenced three arguments to explain its de 
minimis risk principle: (1) The probability of a risk is below an 
acceptable cutoff (i.e., ``bright line'' or threshold); (2) there is a 
lack of scientific data to establish that the risk exists (i.e., the 
risk is non-detectable); or (3) the probability of the risk is less 
than the natural occurrence of the risk (Ref. 20). While neither the 
FD&C Act nor FDA's regulations regarding the evaluation of the safety 
of food additives in response to a food additive petition refer to de 
minimis risk, we review each of these arguments in turn.

[[Page 23388]]

1. De minimis ``Bright Line'' or Threshold Argument
    The petition referenced an article by Castorina and Woodruff (Ref. 
21) in which the authors estimated risks for non-cancer health outcomes 
from hypothetical lifetime ingestion or inhalation exposures to select 
environmental chemicals at the U.S. Environmental Protection Agency's 
(EPA) established reference doses (RfDs) or reference concentrations. 
The authors concluded that the non-cancer risk associated with RfDs 
ranged from 1 in 10,000 (1 x 10-4) to 5 in 1,000 (5 x 
10-3) using a linear dose-response relationship for the 
environmental chemicals the authors selected. The petitioner applied a 
safety factor to the authors' risk estimates associated with RfDs to 
arrive at a proposed probability of risk, ranging from 2 in 100,000 (2 
x 10-5) to 1 in 1,000 (1 x 10-3), which the 
petitioner deemed to be a de minimis risk. The petitioner compared this 
risk range to the results of their quantitative risk estimate, which 
predicted the annual probability of CHD cases attributed to 0.05%en IP-
TFA intake from the petitioned PHO uses to be in the range of 0.42 per 
100,000 adults (or 4.2 x 10-6) to 4.5 per 100,000 adults (or 
4.5 x 10-5). The petition concluded that the estimated risk 
from 0.05%en IP-TFA intake from petitioned PHO uses is de minimis 
because it is well below the probable de minimis risk ranges for non-
cancer risk calculated by applying a safety factor to the risks 
presented in the Castorina and Woodruff article.
FDA Assessment
    We will first address the petitioner's reliance on the Castorina 
and Woodruff paper to determine the concept of de minimis risk, 
followed by our comments on the petitioner's deterministic risk 
assessment. We will also include a discussion of the probabilistic risk 
assessment that we conducted as part of our review.
a. Castorina and Woodruff Study
    We disagree with the petitioner's interpretation of the Castorina 
and Woodruff article on which the petitioner's safety conclusion is 
based. The application of the Castorina and Woodruff study results has 
limitations as a basis for inferring that IP-TFA from petitioned PHO 
uses is safe because it represents de minimis risk. The study is a 
single, exploratory analysis of whether EPA reference values represent 
negligible risk levels; it is not a consensus that defines a concept of 
de minimis risk or safe exposure. In fact, the study authors themselves 
question whether the non-cancer risks associated with the EPA's 
reference values represent ``acceptable levels'' of exposure from a 
public health perspective (Ref. 21). Furthermore, we note that in the 
Castorina and Woodruff paper, the estimated risks were based on 
biochemical and physiological changes associated with several non-
cancer health outcomes that are much less serious than CHD cases or CHD 
deaths. For example, some of the biochemical and physiological changes 
the authors considered included small intestinal lesions, fatty cyst 
formation in the liver, elevated serum glutamate-pyruvate 
transaminases, chronic irritation of stomach, decreased lymphocyte 
count, changes in red blood cell volumes, decreased mean terminal body 
weights, and decreased maternal body weight gain. Therefore, we 
conclude that the petitioner's use of this single article to support 
their de minimis risk argument regarding the risk of CHD or CHD death 
associated with IP-TFA exposure is inadequate.
b. Petitioner's Quantitative Deterministic Risk Assessment
    The petitioner relied on the de minimis risk principle to conclude 
that the petitioned uses of PHOs are safe because the estimated 
probability of CHD risk associated with IP-TFA from the petitioned uses 
of PHOs falls below the probable de minimis non-cancer risk range. The 
petition included a quantitative deterministic risk assessment that 
estimated the annual probability of CHD cases that may be associated 
with IP-TFA from petitioned uses of PHOs ranged from 0.42 to 4.54 per 
100,000 U.S. adults. We note, though, that the petition did not include 
an estimated annual number of CHD cases or estimated annual number of 
CHD deaths associated with IP-TFA from the proposed uses of PHOs. Using 
the petitioner's estimated annual rate of CHD cases per 100,000 adults, 
the U.S. Census estimate of 166.7 million adults in the U.S. population 
in 2014, and a 32 percent CHD fatality rate reported by the Centers for 
Disease Control and Prevention (CDC), we expanded the petitioner's risk 
estimates associated with IP-TFA from petitioned uses of PHOs to 
estimate a range of 700 to 7,570 cases of CHD per year including 
between 224 and 2,422 deaths from CHD per year, which FDA does not 
consider to be insignificant (Ref. 7). Additionally, we conducted our 
own deterministic risk assessment to verify that the petitioner's 
methods were appropriate, and we expanded our analysis to include a 
probabilistic risk assessment to further bolster our decision that the 
estimated risks associated with the petitioned uses of PHOs cause them 
to be unsafe food additives (Ref. 6).
c. FDA's Quantitative Probabilistic Risk Assessment
    The deterministic risk assessment approach that was used by both 
the FDA in our declaratory order and by the petitioner in FAP 5A4811 to 
assess CHD risk associated with IP-TFA exposure is a risk assessment 
approach using assigned values for discrete scenarios (e.g., using most 
likely scenarios or mean values) (Ref. 6). The deterministic approach 
determines the robustness of the risk of CHD. However, it has 
limitations in that it is inadequate in applying population or other 
parameter variability information and it takes into consideration only 
a few discrete results (e.g., mean risk estimates), overlooking many 
others (e.g., probability distributions of risk estimates). The impact 
of different risk parameter values and uncertainty in risk methods 
relative to results also cannot be quantified (Ref. 6).
    The probabilistic approach allows for the analysis of human 
variability and uncertainty in the risk method to be incorporated into 
both the exposure and risk assessments, if high quality empirical data 
with the probability distribution information for key parameters are 
used in the risk assessment (Ref. 6). We considered that at the 
petitioned IP-TFA exposure of 0.05%en, there would be greater 
uncertainty in the CHD risk estimates than the IP-TFA exposure of 
0.5%en which was used in the declaratory order, and that the mean risk 
estimates alone would not be sufficient to demonstrate safety. 
Therefore, we conducted a probabilistic risk assessment for the CHD 
risk associated with an IP-TFA exposure of 0.05%en taking into 
consideration the variability and uncertainty associated with IP-TFA 
exposure and the risk parameters, and estimated both the probabilistic 
means and the uncertainty around the means.
    We used FDA's four risk methods based on a linear no-threshold 
dose-response model (Ref. 6) to estimate changes in CHD risk when 
replacing cis-MUFA or saturated fatty acids at 0.05%en, with the same 
percentage of energy from IP-TFA. The probabilistic means were in line 
with the results estimated using the deterministic approach. The 
probabilistic approach also quantified the probability distribution of 
the risk estimates (e.g., the lower and upper 95 percent statistical 
uncertainty intervals (95

[[Page 23389]]

percent UIs)). The results included estimated changes in percent CHD 
risk, increases in the rate of annual CHD cases (both fatal and non-
fatal) per 100,000 U.S. adults, and increases in the number of annual 
CHD cases, including CHD deaths, among U.S. adults. We also extended 
Method 4 (prospective observational studies) to estimate the annual 
number of CVD deaths among this same population. (CVD deaths include 
deaths from CHD, strokes, and other vascular diseases.) Our assessment 
methodology is documented in our review memorandum (Ref. 6).
    Results from our probabilistic risk assessment demonstrate that 
consuming IP-TFA at a level of 0.05%en per person per day, instead of 
cis-MUFA, can cause a mean increase in annual CHD cases per 100,000 
U.S. adults from 0.478 (95 percent UI 0.299 to 0.676) using the FDA 
risk method based on changes of LDL-C alone (Method 1) to 4.038 (95 
percent UI 2.120 to 6.280) using the FDA risk method based on 
prospective observational studies (Method 4). These increases 
correspond to a mean increase in annual CHD cases from 814 (95 percent 
UI 510 to 1,151, using Method 1) to 6,877 (95 percent UI 3,611 to 
10,694, using Method 4), which includes annual deaths from CHD from 290 
(95 percent UI 182 to 410, using Method 1) to 2,450 (95 percent UI 
1,287 to 3,811, using Method 4). The other two FDA risk methods 
produced increases in risk values from CHD that were between those 
estimated by Method 1 and Method 4.
    The same amount of IP-TFA replacing saturated fatty acids would 
result in lower estimates of annual CHD cases and CHD-related deaths 
than those estimated by replacing cis-MUFA with IP-TFA. We estimated 
the mean increase in annual CHD cases to be 170 (using Method 1) to 
5,110 (using Method 4), which includes 60 to 1,821 annual deaths from 
CHD. Using extended Method 4, the same amount of IP-TFA replacing 
either saturated fatty acids or carbohydrate could cause more than 
6,500 CVD deaths per year in U.S. adults. The results of our analyses 
are described further in our review memorandum (Ref. 6).
    Our deterministic and probabilistic quantitative risk assessments 
demonstrate that there is a probable significant health risk associated 
with 0.05%en from IP-TFA from the petitioned uses of PHOs. Our analyses 
do not support the petitioner's claims that 0.05%en from IP-TFA results 
in de minimis risk or that there is a reasonable certainty that PHOs 
are not harmful under the intended conditions of use.
2. Non-Detectability Argument
    The petitioner argued that the estimated exposure to IP-TFA from 
petitioned uses of PHOs (i.e., 0.05%en) is well below the exposure 
levels in controlled feeding studies and effects at these low IP-TFA 
levels cannot be empirically established based on the currently 
available evidence. The petition questioned the appropriateness of 
using a linear dose-response model for quantifying the effect of lower 
levels of trans fat intake (i.e., <3%en) on LDL-C and HDL-C, and 
maintained that there is a general lack of empirical evidence that 
consumption of low levels of trans fat increases CHD risk due to an 
adverse effect on blood lipoproteins. The petition highlighted one 
study (Ref. 18) suggesting that a linear dose-response model was not 
appropriate for quantifying effects of lower levels of IP-TFA intake on 
LDL-C. In addition, the petition noted that the trans fat content of 
control diets used in published feeding studies ranged from non-
detectable to 2.4%en and suggested, by example, that the non-detectable 
level of TFA in a test diet could be at 0.15%en, which is three times 
higher than IP-TFA from petitioned uses of PHOs. Moreover, the petition 
noted that overall the IP-TFA intake from petitioned uses of PHOs 
(0.05%en) is well below the intake level of diets tested in the 
controlled feeding trials that were relied upon in the meta-analyses to 
assess the effect of IP-TFA on CHD risk. Because the impact of low 
level IP-TFA intakes cannot be detected by scientific studies, the 
petition concluded that the IP-TFA intake from petitioned uses of PHOs 
could be considered de minimis.
FDA Assessment
    We will address the petitioner's non-detectability argument with a 
three-prong response. First, we will discuss the issue of statistical 
power and how it relates to detectable changes in clinical feeding 
trials. Next, we will review empirical evidence of adverse effects of 
lower IP-TFA intakes from several recent population studies. Lastly, we 
will comment on the body of evidence that supports a no-threshold, 
linear dose-response model to characterize the adverse health effects 
of trans fat intake.
a. Statistical Power of Controlled Feeding Trials
    Statistical power is the probability that a study will correctly 
detect an effect when an effect exists (Ref. 22). Larger sample sizes 
generally result in higher statistical power, increasing the likelihood 
that a study will be able to identify differences in the study 
subjects. We acknowledge that there are limits to the statistical power 
of controlled feeding trials to measure changes in LDL-C from low 
levels of TFA exposure. However, the lack of data from controlled 
feeding trials on the effect of TFA intake on blood lipids at lower TFA 
intake is not due to a potential threshold below which TFA intake has 
no effect on LDL-C and other blood lipids. Rather, the lack of data at 
lower TFA intake is due to the limited statistical power to detect 
significant changes in LDL-C at TFA intake below about 3 percent of 
energy in controlled feeding trials with feasible sample size of about 
100 participants. For example, we estimated that it would require more 
than 300,000 participants in hypothetical PHO feeding trials to detect 
statistically significant changes LDL-C at the IP-TFA dietary exposure 
of 0.05%en (Refs. 6 and 7).
b. Empirical Evidence From New Population Studies
    Recent population studies have shown empirical evidence of adverse 
effects of lower IP-TFA intake levels on CHD risk. Two recent 
prospective observational studies with long term follow-up found 
significant increases in CHD risk or CVD mortality at trans fat intake 
increments as low as 0.3%en to 0.6%en (Refs. 15 and 16). This is about 
1/10 of the approximately 3 percent of energy from TFA intake that can 
be studied in controlled feeding trials of lipid biomarkers, and is 
roughly tenfold higher than the 0.05%en IP-TFA exposure from petitioned 
PHO uses.
    Two recent studies independently examined the public health effects 
of restricting trans fat in eateries in several New York state counties 
between 2007 and 2011 (Refs. 23 and 24). In one study, the authors 
compared records of hospital admissions for heart attack and stroke in 
counties that had TFA restrictions and in control counties that had no 
restrictions (Ref. 23). They found that there was an additional 6.2 
percent decline in hospital admissions for heart attacks and strokes in 
the populations of counties with TFA restrictions. This reduction 
corresponds to 43 CVD events prevented annually per 100,000 persons. In 
another study, the authors analyzed the association of trans fat 
restrictions in certain New York state counties and annual CVD 
mortality rates (Ref. 24). They found a 4.5 percent decrease in CVD 
mortality in counties with trans fat restrictions compared with control 
counties. This reduction corresponds to 13 fewer CVD deaths annually 
per 100,000 persons. Both studies, using separate data sources, showed 
consistent results of a ``real-

[[Page 23390]]

world'' public health impact associated with the removal of trans fat 
in restaurant food.
    Four studies published in 2017 examined data on plasma trans fatty 
acid concentrations in U.S. adults from the NHANES of 1999-2000 and 
2009-2010 (Refs. 25-28). These studies showed the association between 
plasma TFA and serum lipid and lipoprotein (i.e., LDL-C and HDL-C) 
concentration before and after reductions in TFA consumption occurred 
in the U.S. population. On average, plasma TFA concentrations in U.S. 
adults were about 54 percent lower in 2009-2010 compared to 1999-2000 
(Refs. 26 and 27). Significant improvements in blood lipids (e.g., 
lower LDL-C and triglycerides, higher HDL-C) occurred over time as 
plasma TFA concentrations decreased (Refs. 25 and 26). Despite 
substantial reductions in TFA intake over time, plasma TFA 
concentrations were significantly and consistently associated with 
serum lipid and lipoprotein concentrations at both time periods (Ref. 
27). Results were similar for metabolic syndrome and most of its 
components such as large waistline, high fasting glucose, and high 
triglycerides (Ref. 28). The authors concluded that these studies do 
not support the existence of a threshold under which the association 
between plasma TFA concentration and lipid profiles might become 
undetectable (Refs. 27 and 28).
c. Consistent Support of a Progressive and Linear Dose-Response
    In response to the petitioner's argument of a non-linear dose-
response, we note that the vast majority of scientific studies have 
been consistent in their conclusions that trans fat consumption has a 
progressive and linear adverse effect on blood lipids and CHD risk 
(Ref. 7). FDA's 2015 review of the scientific evidence for human health 
effects of TFA concluded: (1) There is no evidence of a threshold below 
which TFA does not affect blood lipids and (2) both controlled feeding 
trials and prospective observational studies strongly support the 
conclusion that trans fat intake has a progressive and linear effect 
that increases CHD risk, with no evidence of a threshold (Ref. 2). 
Numerous expert panels discussed in our 2015 review and in the current 
review also support this conclusion. Additional evidence from newer 
studies also supports the conclusion that TFA has a progressive and 
linear adverse effect on blood lipids and CHD risk (Refs. 12 and 29). 
This is discussed in detail in our review memorandum (Ref. 7).
3. Natural Occurrence Argument
    The petitioner based its third argument on a ``natural occurrence'' 
theory which purports that a risk due to human activity may be de 
minimis and would not cause the activity to be considered unsafe 
provided that the risk does not exceed the natural occurrence of the 
same risk (Ref. 20). Specifically, the petitioner argued that the 
petitioned uses of PHOs are safe because the incremental increase in 
IP-TFA intake from petitioned PHO uses (i.e., 0.05%en) is 
infinitesimally small and negligible in comparison to existing 
background dietary TFA exposure from intrinsic sources. As described in 
section IV.B, the petitioner estimated the mean exposure to TFA from 
intrinsic sources (e.g., naturally-occurring TFA from meat and dairy 
foods) to be 0.46%en. The petition stated that the estimated intake of 
IP-TFA of 0.05%en from petitioned uses of PHOs equates to the 1.2th 
percentile of the TFA intake distribution from intrinsic sources. The 
petition explained further that this amount of IP-TFA intake is within 
the variability of the TFA intake from intrinsic sources and below the 
5th percentile. Thus, the petition concluded that the petitioned uses 
are safe because the incremental increase in IP-TFA exposure from the 
petitioned uses of PHOs is infinitesimally small and negligible in 
comparison to existing background dietary TFA exposure from intrinsic 
sources.
FDA Assessment
    For our safety assessment, we considered as a worst-case scenario 
the assumption that TFA from intrinsic sources is chemically and 
pharmacologically related to IP-TFA from PHOs. In general, TFA from 
intrinsic sources and IP-TFA contain the same trans fatty acid isomers, 
although in different proportions (Ref. 12). The most recent evidence 
from controlled feeding trials shows comparable effects on blood 
lipoproteins such as LDL-C and HDL-C by naturally-occurring TFA and IP-
TFA (Ref. 7). Results of prospective observational studies specifically 
of TFA from intrinsic sources (rather than total TFA) are relatively 
sparse, and generally do not show an association of naturally-occurring 
TFA with CHD risk, possibly due to limitations of the studies (Ref. 7). 
Regarding the effect of TFA from intrinsic sources on adverse health 
outcomes other than CHD (e.g., metabolic syndrome and diabetes), study 
results are divergent (Refs. 6 and 7). Although there are 
inconsistencies in the data overall, we considered for the purposes of 
our safety assessment that TFA from intrinsic sources is, in general, 
chemically and pharmacologically related to IP-TFA from PHOs.
    We disagree with the petitioner's assertion that the IP-TFA 
exposure from the petitioned uses of PHOs is safe because it is 
insignificant in comparison to existing background dietary TFA 
exposure. We note that the per capita IP-TFA intake of 0.05%en from 
petitioned uses of PHOs is approximately 10 percent of mean TFA intake 
from intrinsic sources; we do not consider this to be an 
infinitesimally small or negligible amount. The contribution of IP-TFA 
intake from petitioned uses of PHOs is not trivial, but rather will 
increase the mean population TFA exposure by 10 percent. Food sources 
of naturally-occurring TFA are widely consumed in the population, and 
therefore few members of the population consume 0.05%en TFA or less. As 
the petition indicated, 0.05%en from IP-TFA from petitioned uses of 
PHOs corresponds to about the 1.2th percentile of population TFA intake 
from intrinsic sources. We assert that this comparison is not 
particularly relevant to whether the per capita IP-TFA intake is 
significant because the contribution of IP-TFA exposure from the 
petitioned uses is in addition to, not substitutional for, exposure to 
TFA from intrinsic sources. Rather, the relevant comparison is that the 
per capita IP-TFA intake, 0.05%en, is approximately 10 percent of mean 
TFA intake from naturally-occurring sources. For these reasons, we 
disagree with the petitioner's argument that the petitioned uses of 
PHOs are safe because they are negligible in comparison to existing 
background dietary TFA exposure from intrinsic sources.
    As stated earlier, there is no explicit reference to de minimis 
risks under either the FD&C Act or FDA's regulations regarding the 
evaluation of the safety of food additives in response to a food 
additive petition. Based on the data submitted by the petitioner, FDA 
has determined that the petitioned uses present more than a de minimis 
or negligible risk. Therefore, FDA has not found it necessary as part 
of its petition response to determine how the concept of de minimis 
risk may apply to the safety analysis under section 409 of the FD&C 
Act.

V. Comments on the Filing Notification

    We received 10 comments in response to the petition's filing 
notification. Seven comments expressed opposition to the petition, one 
comment was about

[[Page 23391]]

labeling of PHOs, one comment did not pertain to the petition, and one 
comment was a duplicate submission. All of the comments opposing the 
petition cited the adverse health effects associated with the 
consumption of TFA. None of the comments provided information to 
support the petitioner's conclusion that the proposed uses of PHOs are 
safe.

VI. Conclusion

    FAP 5A4811 requested that the food additive regulations be amended 
to provide for the safe use of PHOs as a solvent or carrier for 
flavoring agents, flavor enhancers, and coloring agents; as a 
processing aid; and as a pan release agent for baked goods at specific 
use levels. After reviewing the petition, as well as additional data 
and information relevant to the petitioner's request, we determined 
that the petition does not contain convincing evidence to support the 
conclusion that the proposed uses of PHOs are safe. Therefore, FDA is 
denying FAP 5A4811 in accordance with 21 CFR 171.100(a).

VII. Compliance Date

    As discussed in section II, the declaratory order concluded that 
PHOs are no longer GRAS for any use in human food and established a 
compliance date of June 18, 2018 (80 FR 34650). In light of our denial 
of FAP 5A4811, we acknowledge that the food industry needs additional 
time to identify suitable replacement substances for the petitioned 
uses of PHOs and that the food industry has indicated that 12 months 
could be a reasonable timeframe for reformulation activities (Ref. 30). 
Therefore, elsewhere in this issue of the Federal Register, we have 
extended the compliance date to June 18, 2019, for the manufacturing of 
food with the petitioned uses of PHOs. Food manufactured with the 
petitioned uses after June 18, 2019 may be subject to enforcement 
action by FDA.
    In addition, for food manufactured with the petitioned uses before 
June 18, 2019, elsewhere in this issue of the Federal Register, we are 
extending the compliance date to January 1, 2021. This time frame will 
allow manufacturers, distributors, and retailers to exhaust product 
inventory of foods made with the petitioned uses before the 
manufacturing compliance date. All foods containing unauthorized uses 
of PHOs after January 1, 2021 may be subject to FDA enforcement action.

VIII. Objections

    Any persons that may be adversely affected by this document may 
file with the Dockets Management Staff (see ADDRESSES) either 
electronic or written objections. You must separately number each 
objection, and within each numbered objection you must specify with 
particularity the provision(s) to which you object, and the grounds for 
your objection. Within each numbered objection, you must specifically 
state whether you are requesting a hearing on the particular provision 
that you specify in that numbered objection. If you do not request a 
hearing for any particular objection, you waive the right to a hearing 
on that objection. If you request a hearing, your objection must 
include a detailed description and analysis of the specific factual 
information you intend to present in support of the objection in the 
event that a hearing is held. If you do not include such a description 
and analysis for any particular objection, you waive the right to a 
hearing on the objection.
    It is only necessary to send one set of documents. Identify 
documents with the docket number found in brackets in the heading of 
this document. Any objections received in response to the regulation 
may be seen in the Dockets Management Staff between 9 a.m. and 4 p.m., 
Monday through Friday, and will be posted to the docket at http://www.regulations.gov. We will publish notice of the objections that we 
have received or lack thereof in the Federal Register.

IX. References

    The following references are on display in the Dockets Management 
Staff (see ADDRESSES) and are available for viewing by interested 
persons between 9 a.m. and 4 p.m., Monday through Friday; they are also 
available electronically at http://www.regulations.gov. FDA has 
verified the website addresses, as of the date this document publishes 
in the Federal Register, but websites are subject to change over time.

1. Sacks, F.M., A.H. Lichtenstein, J.H.Y. Wu, et al. ``Dietary Fats 
and Cardiovascular Disease: A Presidential Advisory from the 
American Heart Association.'' Circulation 136(3): e1-e23, 2017.
2. FDA Memorandum from J. Park to M. Honigfort, Scientific Update on 
Experimental and Observational Studies of Trans Fat Intake and 
Coronary Heart Disease Risk, June 11, 2015.
3. FDA Memorandum from J. Park to M. Honigfort, Literature Review, 
June 11, 2015.
4. FDA Memorandum from J. Park to M. Honigfort, Quantitative 
Estimate of Industrial Trans Fat Intake and Coronary Heart Disease 
Risk, June 11, 2015.
5. FDA Memorandum from D. Doell to E. Anderson, April 13, 2018.
6. FDA Memorandum from J. Park to E. Anderson, Quantitative Coronary 
Heart and Cardiovascular Disease Risk Assessments of Exposure from 
Industrially-Produced Trans Fatty Acid (IP-TFA) from Proposed Uses 
of Partially Hydrogenated Vegetable Oils (PHO) in Select Foods, 
April 16, 2018.
7. FDA Memorandum from J. Park to E. Anderson, Scientific Literature 
Review Update on Trans Fats with Detailed Responses to the 
Petitioner's Safety Conclusions on the Petitioned Uses of Partially 
Hydrogenated Oils (PHOs), April 16, 2018.
8. IOM/NAS, ``Dietary Reference Intakes for Energy Carbohydrate, 
Fat, Fatty Acids, Cholesterol, and Amino Acids (Macronutrients),'' 
National Academies Press, Washington, DC, 2002/2005, Available at: 
https://www.nap.edu.
9. Katan, M.B., P.L. Zock, and R.P. Mensink, ``Trans Fatty Acids and 
Their Effects on Lipoproteins in Humans,'' Annual Review of 
Nutrition, 15:473-93, 1995.
10. Zock, P.L., M.B. Katan, and R.P. Mensink, ``Dietary Trans Fatty 
Acids and Lipoprotein Cholesterol,'' American Journal of Clinical 
Nutrition, 61(3):617, 1995.
11. Zock, P.L. and R.P. Mensink, ``Dietary Trans-Fatty Acids and 
Serum Lipoproteins in Humans,'' Current Opinion in Lipidology, 
7(1):34-7, 1996.
12. Brouwer, I.A., ``Effect of Trans-Fatty Acid Intake on Blood 
Lipids and Lipoproteins: A Systematic Review and Meta-Regression 
Analysis,'' Geneva: World Health Organization, 2016.
13. Hafekost, K., T.A. O'Sullivan, D. Lawrence, and F. Mitrou, 
``Systematic Review of the Evidence for a Relationship Between 
Trans-Fatty Acids and Blood Cholesterol,'' Canberra, Australia: On 
behalf of Food Standards Australia New Zealand, 2014, available at: 
http://www.foodstandards.gov.au/publications/Pages/Systematic-Review-of-the-evidence-for-a-relationship-between-trans-fatty-acids-and-blood-cholesterol-.aspx.
14. de Souza, R.J., A. Mente, A. Maroleanu, et al., ``Intake of 
Saturated and Trans Unsaturated Fatty Acids and Risk of All Cause 
Mortality, Cardiovascular Disease, and Type 2 Diabetes: Systematic 
Review and Meta-Analysis of Observational Studies,'' BMJ, 351:h3978, 
2015.
15. Li, Y., Hruby, A., A.M. Bernstein, et al., ``Saturated Fats 
Compared with Unsaturated Fats and Sources of Carbohydrates in 
Relation to Risk of Coronary Heart Disease: A Prospective Cohort 
Study,'' Journal of the American College of Cardiology, 66(14):1538-
48, 2015.
16. Wang, D.D., Y. Li, S.E. Chiuve, et al., ``Association of 
Specific Dietary Fats with Total and Cause-Specific Mortality,'' 
JAMA Internal Medicine, 176(8):1134-45, 2016.
17. Reichard, J.F. and L.T. Haber, ``Mode-of-Action Evaluation for 
the Effect of Trans Fatty Acids on Low-Density Lipoprotein 
Cholesterol,'' Food and Chemical Toxicology, 98(Pt B):282-94, 2016.
18. Allen, B.C., M.J. Vincent, D. Liska, and L.T. Haber, ``Meta-
Regression Analysis of

[[Page 23392]]

the Effect of Trans Fatty Acids on Low-Density Lipoprotein 
Cholesterol,'' Food and Chemical Toxicology, 98(Pt B):295-307, 2016.
19. Liska, D.J., C.M. Cook, D.D. Wang, P.C. Gaine, and D.J. Baer, 
``Trans Fatty Acids and Cholesterol Levels: An Evidence Map of the 
Available Science.'' Food and Chemical Toxicology, 98(Pt B):269-81, 
2016.
20. Peterson, M., ``What is a de minimis Risk?'' Risk Management: An 
International Journal, 4(2):47-55, 2002.
21. Castorina, R. and T.J. Woodruff, ``Assessment of Potential Risk 
Levels Associated with U.S. Environmental Protection Agency 
Reference Values,'' Environmental Health Perspectives, 111(10):1318-
25, 2003.
22. Rosner, B., Fundamentals of Biostatistics, Duxbury Press, 
Belmont, CA, 2010.
23. Brandt, E.J., R. Myerson, M.C. Perraillon, and T.S. Polonsky, 
``Hospital Admissions for Myocardial Infarction and Stroke Before 
and After the Trans-Fatty Acid Restrictions in New York,'' JAMA 
Cardiology, 2(6):627-634, 2017.
24. Restrepo, B.J. and M. Rieger, ``Trans Fat and Cardiovascular 
Disease Mortality: Evidence from Bans in Restaurants in New York,'' 
Journal of Health Economics, 45:176-96, 2016.
25. Restrepo, B.J., ``Further Decline of Trans Fatty Acids Levels 
Among US Adults Between 1999-2000 and 2009-2010,'' American Journal 
of Public Health, 107(1):156-8, 2017.
26. Vesper, H.W., S.P. Caudill, H.C. Kuiper, et al., ``Plasma Trans-
Fatty Acid Concentrations in Fasting Adults Declined from NHANES 
1999-2000 to 2009-2010,'' American Journal of Clinical Nutrition, 
105(5):1063-9, 2017.
27. Yang, Q., Z. Zhang, F. Loustalot, et al., ``Plasma Trans-Fatty 
Acid Concentrations Continue to be Associated with Serum Lipid and 
Lipoprotein Concentrations Among US adults After Reductions in 
Trans-Fatty Acid Intake,'' Journal of Nutrition, 147(5):896-907, 
2017.
28. Zhang, Z., C. Gillespie, Q. Yang, ``Plasma Trans-Fatty Acid 
Concentrations Continue to be Associated with Metabolic Syndrome 
Among US Adults After Reductions in Trans-Fatty Acid Intake,'' 
Nutrition Research, 43:51-9, 2017.
29. Mensink, R.P., ``Effects of Saturated Fatty Acids on Serum 
Lipids and Lipoproteins: A Systematic Review and Regression 
Analysis,'' Geneva: World Health Organization, 2016.
30. Letter from the American Bakers Association, et al., to Dr. 
Scott Gottlieb, Commissioner, Food and Drug Administration (April 
30, 2018) (sent by electronic mail).

    Dated: May 15, 2018.
Leslie Kux,
Associate Commissioner for Policy.
[FR Doc. 2018-10715 Filed 5-18-18; 8:45 am]
 BILLING CODE 4164-01-P



                                                  23382                     Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules

                                                  The Proposal                                            PART 71—DESIGNATION OF CLASS A,                         petitioned uses of PHOs, elsewhere in
                                                                                                          B, C, D, AND E AIRSPACE AREAS; AIR                      this issue of the Federal Register we
                                                     The FAA is proposing an amendment                    TRAFFIC SERVICE ROUTES; AND                             have extended the compliance date for
                                                  to Title 14, Code of Federal Regulations                REPORTING POINTS                                        certain uses of PHOs, including the
                                                  (14 CFR) part 71 by establishing Class E                                                                        conditions of use covered by the FAP.
                                                  airspace extending upward from 700                      ■ 1. The authority citation for 14 CFR                  DATES: This document is applicable May
                                                  feet above the surface within a 6.4-mile                part 71 continues to read as follows:                   21, 2018. Submit either electronic or
                                                  radius of Glen Ullin Regional Airport,                    Authority: 49 U.S.C. 106(f), 106(g); 40103,           written objections and requests for a
                                                  Glen Ullin, ND, to accommodate new                      40113, 40120; E.O. 10854, 24 FR 9565, 3 CFR,            hearing on the document by June 20,
                                                  standard instrument approach                            1959–1963 Comp., p. 389.                                2018. Late, untimely objections will not
                                                  procedures developed for the airport.                                                                           be considered. See section VIII for
                                                                                                          § 71.1       [Amended]
                                                  This action would enhance safety and                                                                            further information on the filing of
                                                  the management of IFR operations at the                 ■ 2. The incorporation by reference in                  objections.
                                                  airport.                                                14 CFR 71.1 of FAA Order 7400.11B,
                                                                                                          Airspace Designations and Reporting                     ADDRESSES: You may submit objections
                                                     Class E airspace designations are                    Points, dated August 3, 2017, and                       and requests for a hearing as follows.
                                                  published in paragraph 6005 of FAA                      effective September 15, 2017, is                        Electronic Submissions
                                                  Order 7400.11B, dated August 3, 2017,                   amended as follows:
                                                  and effective September 15, 2017, which                                                                            Submit electronic objections in the
                                                  is incorporated by reference in 14 CFR                  Paragraph 6005 Class E Airspace Areas                   following way:
                                                  71.1. The Class E airspace designation
                                                                                                          Extending Upward From 700 Feet or More                     • Federal eRulemaking Portal:
                                                                                                          Above the Surface of the Earth.                         https://www.regulations.gov. Follow the
                                                  listed in this document will be
                                                  published subsequently in the Order.                    *        *      *      *       *                        instructions for submitting comments.
                                                                                                          AGL WI E5 Glen Ullin, ND [New]                          Objections submitted electronically,
                                                  Regulatory Notices and Analyses                                                                                 including attachments, to https://
                                                                                                          Glen Ullin Regional Airport, ND
                                                                                                                                                                  www.regulations.gov will be posted to
                                                    The FAA has determined that this                        (Lat. 46°48′52″ N, long. 101°51′55″ W)
                                                                                                                                                                  the docket unchanged. Because your
                                                  proposed regulation only involves an                      That airspace extending upward from 700
                                                                                                                                                                  objection will be made public, you are
                                                  established body of technical                           feet above the surface within a 6.4-mile
                                                                                                          radius of Glen Ullin Regional Airport.                  solely responsible for ensuring that your
                                                  regulations for which frequent and                                                                              objection does not include any
                                                  routine amendments are necessary to                       Issued in Fort Worth, Texas, on May 9,                confidential information that you or a
                                                  keep them operationally current, is non-                2018.
                                                                                                                                                                  third party may not wish to be posted,
                                                  controversial and unlikely to result in                 Walter Tweedy,                                          such as medical information, your or
                                                  adverse or negative comments. It,                       Acting Manager, Operations Support Group,               anyone else’s Social Security number, or
                                                  therefore: (1) Is not a ‘‘significant                   ATO Central Service Center.                             confidential business information, such
                                                  regulatory action’’ under Executive                     [FR Doc. 2018–10654 Filed 5–18–18; 8:45 am]             as a manufacturing process. Please note
                                                  Order 12866; (2) is not a ‘‘significant                 BILLING CODE 4910–13–P                                  that if you include your name, contact
                                                  rule’’ under DOT Regulatory Policies                                                                            information, or other information that
                                                  and Procedures (44 FR 11034; February                                                                           identifies you in the body of your
                                                  26, 1979); and (3) does not warrant                     DEPARTMENT OF HEALTH AND                                objection, that information will be
                                                  preparation of a regulatory evaluation as               HUMAN SERVICES                                          posted on https://www.regulations.gov.
                                                  the anticipated impact is so minimal.                                                                              • If you want to submit an objection
                                                  Since this is a routine matter that will                Food and Drug Administration                            with confidential information that you
                                                  only affect air traffic procedures and air                                                                      do not wish to be made available to the
                                                  navigation, it is certified that this                   21 CFR Part 172                                         public, submit the objection as a
                                                  proposed rule, when promulgated,                        [Docket No. FDA–2015–F–3663]                            written/paper submission and in the
                                                  would not have a significant economic                                                                           manner detailed (see ‘‘Written/Paper
                                                  impact on a substantial number of small                 Grocery Manufacturers Association;                      Submissions’’ and ‘‘Instructions’’).
                                                                                                          Denial of Food Additive Petition                           • The https://www.regulations.gov
                                                  entities under the criteria of the
                                                                                                                                                                  electronic filing system will accept
                                                  Regulatory Flexibility Act.                             AGENCY:       Food and Drug Administration,             objections until midnight Eastern Time
                                                  Environmental Review                                    HHS.                                                    at the end of June 20, 2018.
                                                                                                          ACTION:      Notification; denial of petition.
                                                     This proposal will be subject to an                                                                          Written/Paper Submissions
                                                  environmental analysis in accordance                    SUMMARY:   The Food and Drug                              Submit written/paper submissions as
                                                  with FAA Order 1050.1F,                                 Administration (FDA or we) is denying                   follows:
                                                  ‘‘Environmental Impacts: Policies and                   a food additive petition (FAP 5A4811),                    • Mail/Hand delivery/Courier (for
                                                  Procedures’’ prior to any FAA final                     submitted by the Grocery Manufacturers                  written/paper submissions): Dockets
                                                  regulatory action.                                      Association (GMA), requesting that the                  Management Staff (HFA–305), Food and
                                                                                                          food additive regulations be amended to                 Drug Administration, 5630 Fishers
                                                  List of Subjects in 14 CFR Part 71                      provide for the safe use of partially                   Lane, Rm. 1061, Rockville, MD 20852.
                                                                                                          hydrogenated vegetable oils (PHOs) in                     • For written/paper objections
sradovich on DSK3GMQ082PROD with PROPOSALS




                                                   Airspace, Incorporation by reference,                  certain food applications. We are                       submitted to the Dockets Management
                                                  Navigation (air).                                       denying the petition because we have                    Staff, FDA will post your objection, as
                                                  The Proposed Amendment                                  determined that the petitioner did not                  well as any attachments, except for
                                                                                                          provide sufficient information for us to                information submitted, marked and
                                                    Accordingly, pursuant to the                          conclude that the requested uses of                     identified, as confidential, if submitted
                                                  authority delegated to me, the Federal                  PHOs are safe. To allow the food                        as detailed in ‘‘Instructions.’’
                                                  Aviation Administration proposes to                     industry sufficient time to identify                      • Objections received by mail/hand
                                                  amend 14 CFR part 71 as follows:                        suitable replacement substances for the                 delivery/courier (for written/paper


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                                                                            Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules                                                    23383

                                                  submissions) will be considered timely                  and Drug Administration, 5001 Campus                  and FDA met several times in the
                                                  if they are postmarked or the delivery                  Dr., College Park, MD 20740–3835, 240–                months following to discuss the
                                                  service acceptance receipt is on or                     402–1309.                                             deficiencies.
                                                  before June 20, 2018.                                   SUPPLEMENTARY INFORMATION:                               On March 7, 2017, the petitioner
                                                     Instructions: All submissions received                                                                     submitted a substantive amendment to
                                                  must include the Docket No. FDA–                        I. Introduction                                       FAP 5A4811 that addressed the
                                                  2015–F–3663 for ‘‘Grocery                                  In a document published in the                     deficiencies identified by FDA. In
                                                  Manufacturers Association; Denial of                    Federal Register on October 28, 2015                  accordance with 21 CFR 171.6, the
                                                  Food Additive Petition.’’ Received                      (80 FR 65978), we announced that we                   petition was assigned a new filing date
                                                  objections, those filed in a timely                     filed FAP 5A4811 (‘‘petition’’)                       of March 7, 2017. The amended petition
                                                  manner (see ADDRESSES), will be placed                  submitted by the Grocery Manufacturers                contained significant revisions to the
                                                  in the docket and, except for those                     Association, 1350 I St. NW, Suite 300,                proposed uses, exposure estimate, and
                                                  submitted as ‘‘Confidential                             Washington, DC 20005 (‘‘petitioner’’).                safety assessment of PHOs. The revised
                                                  Submissions,’’ publicly viewable at                     The petitioner requested that we amend                petitioned uses of PHOs were limited to
                                                  https://www.regulations.gov or at the                   the food additive regulations in 21 CFR               the following: (1) As a solvent or carrier
                                                  Dockets Management Staff between 9                      part 172 Food Additives Permitted for                 for flavoring agents, flavor enhancers,
                                                  a.m. and 4 p.m., Monday through                         Direct Addition to Food for Human                     and coloring agents; (2) as a processing
                                                  Friday.                                                 Consumption to provide for the safe use               aid, and (3) as a pan release agent for
                                                     • Confidential Submissions—To                        of partially hydrogenated vegetable oils              baked goods. Based on the revisions, the
                                                  submit an objection with confidential                   (PHOs) in the following food                          petitioner asserted that the amended
                                                  information that you do not wish to be                  applications at specified maximum use                 uses of PHOs would present a de
                                                  made publicly available, submit your                    levels: as a carrier or component thereof             minimis increase in risk (in other
                                                  objections only as a written/paper                      for flavors or flavorings, as a diluent or            words, a negligible increase in risk) and,
                                                  submission. You should submit two                       component thereof for color additives,                therefore, are safe under the conditions
                                                  copies total. One copy will include the                 as an incidental additive or processing               of intended use. References to the
                                                  information you claim to be confidential                aid, and as a direct additive in                      ‘‘petition’’ henceforth in this document
                                                  with a heading or cover note that states                approximately 60 food categories. The                 will denote the amended petition
                                                  ‘‘THIS DOCUMENT CONTAINS                                petition was submitted in response to                 received on March 7, 2017.
                                                  CONFIDENTIAL INFORMATION.’’ The                         FDA’s declaratory order issued on June
                                                                                                                                                                II. Background
                                                  Agency will review this copy, including                 17, 2015 (80 FR 34650), announcing our
                                                  the claimed confidential information, in                final determination that there is no                  A. Statutory and Regulatory
                                                  its consideration of comments. The                      longer a consensus among qualified                    Requirements Regarding Food Additives
                                                  second copy, which will have the                        experts that PHOs are generally                          The Federal Food, Drug, and Cosmetic
                                                  claimed confidential information                        recognized as safe for any use in human               Act (FD&C Act) defines ‘‘food additive,’’
                                                  redacted/blacked out, will be available                 food. In the declaratory order, we                    in relevant part, as any substance, the
                                                  for public viewing and posted on                        invited submission of food additive                   intended use of which results or may
                                                  https://www.regulations.gov. Submit                     petitions with scientific evidence for                reasonably be expected to result,
                                                  both copies to the Dockets Management                   one or more specific uses of PHOs for                 directly or indirectly, in its becoming a
                                                  Staff. If you do not wish your name and                 which the petitioner believes that safe               component of food, if such substance is
                                                  contact information to be made publicly                 conditions of use may be prescribed (as               not generally recognized by experts as
                                                  available, you can provide this                         further discussed in section II).                     safe under the conditions of its intended
                                                                                                             FAP 5A4811 was submitted by GMA                    use (section 201(s) of the FD&C Act (21
                                                  information on the cover sheet and not
                                                                                                          to FDA on June 11, 2015. During our                   U.S.C. 321(s))). Food additives are
                                                  in the body of your comments and you
                                                                                                          initial review, we determined that the                deemed unsafe and prohibited except to
                                                  must identify this information as
                                                                                                          petition did not contain an                           the extent that FDA approves their use
                                                  ‘‘confidential.’’ Any information marked
                                                                                                          environmental assessment as required                  (sections 301(a) and (k) (21 U.S.C. 331(a)
                                                  as ‘‘confidential’’ will not be disclosed
                                                                                                          under 21 CFR 25.15(a); therefore, we                  and (k)) and 409(a) (21 U.S.C. 348(a)) of
                                                  except in accordance with 21 CFR 10.20
                                                                                                          informed GMA that their petition did                  the FD&C Act.)
                                                  and other applicable disclosure law. For
                                                                                                          not meet the minimum requirements for                    The FD&C Act provides a process
                                                  more information about FDA’s posting
                                                                                                          filing in accordance with 21 CFR                      through which persons who wish to use
                                                  of comments to public dockets, see 80
                                                                                                          171.1(c). On September 18, 2015, GMA                  a food additive may submit a petition
                                                  FR 56469, September 18, 2015, or access
                                                                                                          resubmitted a complete FAP 5A4811,                    proposing the issuance of a regulation
                                                  the information at: https://www.gpo.gov/
                                                                                                          which we subsequently filed on October                prescribing the conditions under which
                                                  fdsys/pkg/FR-2015-09-18/pdf/2015-
                                                                                                          1, 2015. During our initial review of                 the additive may be safely used (section
                                                  23389.pdf.
                                                                                                          FAP 5A4811, we identified several                     409(b)(1) of the FD&C Act). When FDA
                                                     Docket: For access to the docket to
                                                                                                          deficiencies that required resolution by              concludes that a proposed use of a food
                                                  read background documents or the
                                                                                                          GMA for us to continue with our                       additive is safe, we issue a regulation
                                                  electronic and written/paper comments
                                                                                                          review. We issued a letter to GMA on                  authorizing a specific use of the
                                                  received, go to https://
                                                                                                          March 21, 2016, explaining the                        substance.
                                                  www.regulations.gov and insert the
                                                                                                          additional information required to
                                                  docket number, found in brackets in the                                                                       B. Relevant Regulatory History of PHOs
sradovich on DSK3GMQ082PROD with PROPOSALS




                                                                                                          resolve the petition’s deficiencies. On
                                                  heading of this document, into the                                                                              On November 8, 2013, FDA issued a
                                                                                                          May 5, 2016, GMA submitted a partial
                                                  ‘‘Search’’ box and follow the prompts                                                                         document (the tentative determination,
                                                                                                          response to the deficiencies. The
                                                  and/or go to the Dockets Management
                                                                                                          petition was then placed in abeyance by
                                                  Staff, 5630 Fishers Lane, Rm. 1061,                                                                           deficiencies that were identified during FDA’s
                                                                                                          FDA, consistent with our procedures for
                                                  Rockville, MD 20852.                                                                                          review. A petition remains in abeyance until either
                                                                                                          food additive petitions.1 The petitioner              the petitioner provides FDA with the required
                                                  FOR FURTHER INFORMATION CONTACT:
                                                                                                                                                                information, requests a final decision based on the
                                                  Ellen Anderson, Center for Food Safety                    1 Abeyance is an administrative category of         data currently in the petition, or requests
                                                  and Applied Nutrition (HFS–265), Food                   petitions that are filed but non-active because of    withdrawal of the petition.



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                                                  23384                     Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules

                                                  78 FR 67169), announcing our tentative                  Act for one or more specific uses of                     To establish with reasonable certainty
                                                  determination that PHOs are no longer                   PHOs for which industry or other                      that a food additive is not harmful
                                                  generally recognized as safe (GRAS)                     interested individuals believe that safe              under its intended conditions of use, we
                                                  under any condition of use in food and                  conditions of use may be prescribed. We               typically consider the projected human
                                                  therefore are food additives subject to                 also established a three-year delayed                 dietary exposure to the additive, the
                                                  section 409 of the FD&C Act. Because                    compliance date (compliance required                  additive’s toxicological data provided
                                                  PHOs are the primary dietary source of                  no later than June 18, 2018) to provide               by the petitioner, and other relevant
                                                  industrially-produced trans fatty acids                 time for submission and review and, if                information (such as published
                                                  (IP–TFA), FDA’s evaluation of the GRAS                  applicable requirements are met,                      literature) available to us. FDA scientists
                                                  status of PHOs centered on the trans                    approval of food additive petitions for               use these toxicological data (usually
                                                  fatty acid (TFA, also referred to as                    uses of PHOs (80 FR 34650 at 34668).                  derived from animal and in vitro
                                                  ‘‘trans fat’’) component of these fats and                                                                    studies) to determine a no-observed
                                                  oils. The tentative determination cited                 III. Evaluation of Safety
                                                                                                                                                                effect level or a no-observed-adverse-
                                                  current scientific evidence of significant                A food additive cannot be approved                  effect-level, apply an appropriate safety
                                                  human health risks, namely an                           for use unless the data presented to us               factor to account for differences between
                                                  increased risk in coronary heart disease                establish that the food additive is safe              animals and humans and differences in
                                                  (CHD), associated with the consumption                  for that use (section 409(c)(3)(A) of the             sensitivity among humans, and
                                                  of IP–TFA (78 FR 67169 at 67172). The                   FD&C Act). To determine whether a                     calculate the acceptable daily intake
                                                  scientific evidence included results                    food additive is safe, the FD&C Act                   (ADI) for the food additive. The ADI is
                                                  from controlled feeding studies on trans                requires us to consider among other                   usually expressed in milligrams of food
                                                  fatty acid consumption in humans,                       relevant factors: (1) Probable                        additive per kilogram body weight of
                                                  findings from long-term prospective                     consumption of the additive; (2)                      humans. We compare an individual’s
                                                  epidemiological studies, and the                        cumulative effect of such additive in the             estimated daily intake (EDI) of the
                                                  opinions of expert panels that there is                 diet of man or animals, taking into                   additive from all food sources to the
                                                  no threshold intake level for IP–TFA                    account any chemically or                             ADI established by toxicological data.
                                                  that would not increase an individual’s                 pharmacologically related substances in               The EDI is determined based on the
                                                  risk of CHD (78 FR 67169 at 67172).                                                                           amount of the additive proposed for use
                                                                                                          the diet; and (3) safety factors generally
                                                  Based on the evidence outlined in the                                                                         in particular foods and the amount of
                                                                                                          recognized by experts as appropriate for
                                                  tentative determination, we determined                                                                        those foods consumed containing the
                                                                                                          the use of animal experimentation data
                                                  that there is no longer a consensus                                                                           additive, and on the amount of the
                                                                                                          (section 409(c)(5) of the FD&C Act). Our
                                                  among qualified experts that PHOs are                                                                         additive from all other dietary sources.
                                                                                                          determination that a food additive use is
                                                  safe for human consumption (i.e., PHOs                                                                        We typically use the EDI for the 90th
                                                                                                          safe means that there is a ‘‘reasonable
                                                  do not meet the GRAS criteria.) The                                                                           percentile consumer of a food additive
                                                                                                          certainty in the minds of competent
                                                  tentative determination also requested                                                                        as a measure of high chronic dietary
                                                                                                          scientists that the substance is not
                                                  interested parties to submit comments                                                                         exposure. A food additive is generally
                                                                                                          harmful under the intended conditions
                                                  and additional scientific data related to                                                                     considered safe for its intended uses if
                                                  our tentative determination that PHOs                   of use’’ (§ 170.3(i) (21 CFR 170.3(i))).
                                                                                                                                                                the EDI of the additive is less than the
                                                  are no longer GRAS (78 FR 67169 at                        FAP 5A4811 is not a typical food
                                                                                                                                                                ADI. This approach assumes that a
                                                  67174).                                                 additive petition in that it is requesting
                                                                                                                                                                physiological threshold may exist below
                                                     We received over 6000 comments in                    food additive approval for existing uses
                                                                                                                                                                which exposure to an additive will not
                                                  response to the tentative determination.                of PHOs that industry, independent of
                                                                                                                                                                cause harm. In the case of PHOs, which
                                                  We reviewed the comments before                         FDA, had concluded were GRAS, but
                                                                                                                                                                contribute IP–TFA to the diet, the main
                                                  issuing our final determination as a                    FDA subsequently determined such
                                                                                                                                                                toxicological data available to assess
                                                  declaratory order published on June 17,                 uses are not GRAS. Most food additive
                                                                                                                                                                safety consists of controlled feeding
                                                  2015 (the declaratory order, 80 FR                      petitions seek premarket approval for
                                                                                                                                                                trials and prospective observational
                                                  34650). The declaratory order included                  new uses of food additives.
                                                                                                                                                                studies in humans where the adverse
                                                  four major provisions: (1) PHOs are not                 Additionally, the approach that we
                                                                                                                                                                health outcomes associated with the
                                                  GRAS for any use in human food; (2) for                 normally use to evaluate safety of a
                                                                                                                                                                additive are increased CHD risk and
                                                  the purposes of the declaratory order,                  direct food additive is not applicable for
                                                  FDA defined PHOs as those fats and oils                                                                       other non-cancer risks (e.g., stroke). To
                                                                                                          assessing the safety of IP–TFA in PHOs.
                                                  that have been hydrogenated, but not to                                                                       receive approval for the petitioned uses
                                                                                                          Food additives are typically evaluated
                                                  complete or near complete saturation,                                                                         of PHOs, the petitioner has the
                                                                                                          based on toxicological studies in
                                                  and with an iodine value greater than 4                                                                       responsibility to provide scientific
                                                                                                          animals, as described in our guidance,
                                                  as determined by an appropriate                                                                               evidence that establishes that the
                                                                                                          Toxicological Principles for the Safety of
                                                  method; (3) any interested party may                                                                          intended uses of PHOs are safe,
                                                                                                          Assessment of Food Ingredients (also
                                                  seek food additive approval for one or                                                                        including the expected dietary exposure
                                                                                                          known as Redbook 2000).2 However,
                                                  more specific uses of PHOs with data                                                                          to trans fat resulting from the intended
                                                                                                          key scientific evidence for the
                                                  demonstrating a reasonable certainty of                                                                       uses of PHOs.
                                                                                                          association of trans fat and CHD is
                                                  no harm of the proposed use(s); and (4)                 based on human studies, including                        Our declaratory order references three
                                                  FDA established a compliance date of                    controlled feeding trials of trans fat                safety memoranda prepared by FDA that
                                                  June 18, 2018 (80 FR 34650 at 34651).                                                                         document our review of the available
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                                                                                                          intake and blood cholesterol levels in
                                                     In our declaratory order finding that                humans and long-term, prospective                     scientific evidence regarding human
                                                  PHOs are no longer GRAS for any use                     observational studies of trans fat intake             health effects of trans fat, focusing on
                                                  in human food, we acknowledged that                     and CHD risk in human populations                     the adverse effects of trans fat on risk of
                                                  scientific knowledge advances and                       (Ref. 1).                                             CHD (Refs. 2–4). In addition, we
                                                  evolves over time. The declaratory order                                                                      previously reviewed the health effects of
                                                  invited submission of scientific                          2 Redbook 2000 is available at https://             IP–TFA and PHOs in support of our
                                                  evidence as part of food additive                       www.fda.gov/downloads/Food/Guidance                   tentative determination that PHOs are
                                                  petitions under section 409 of the FD&C                 Regulation/UCM222779.pdf.                             not GRAS in food (78 FR 67169) and in


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                                                                            Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules                                             23385

                                                  1999 and 2003 in support of our                         IV. FDA’s Review of FAP 5A4811                        to resolve this issue regarding
                                                  proposed and final rules requiring                                                                            characterization of the technical or
                                                                                                          A. Chemical Identity, Intended
                                                  declaration of trans fat in nutrition                                                                         functional effect of these additives.
                                                                                                          Technical Effects, and Petitioned Uses
                                                  labeling of food (64 FR 62746 and 68 FR                 of PHOs                                               B. Estimated Exposure to Trans Fat
                                                  41434). The safety reviews for the
                                                  declaratory order, together with the                       The PHOs that are the subject of FAP                  The petitioner provided exposure
                                                                                                          5A4811 are made from the following                    estimates for TFA from the petitioned
                                                  previous safety reviews of IP–TFA and
                                                                                                          vegetable oils: Soy, cottonseed, coconut,             uses of PHOs and from intrinsic (i.e.,
                                                  PHOs, provide important background
                                                                                                          canola, palm, palm kernel, and                        naturally-occurring) sources such as
                                                  scientific information for our review of                sunflower oils, or blends of these oils,              dairy and meat from ruminant animals.
                                                  FAP 5A4811.                                             and consist of up to 60 percent trans                 To estimate exposure, the petitioner
                                                     The petition contains a review of                    fatty acids. As discussed in section I,               used food disappearance data from 2014
                                                  recent scientific literature and expert                 GMA requested approval of three uses                  compiled by the U.S. Department of
                                                  opinions on trans fat consumption.                      of PHOs, which are as follows:                        Agriculture (USDA) Economic Research
                                                  GMA asserted that this information                         • PHO, or a blend of PHOs, used as                 Service, food consumption data from
                                                  supports the following three                            a solvent or carrier, or a component                  either the 2007–2010 or 2009–2012
                                                  conclusions, which are their reasons                    thereof, for flavoring agents, flavor                 National Health and Nutrition
                                                  why they believe the petitioned uses of                 enhancers, and coloring agents intended               Examination Surveys (NHANES), and
                                                  PHOs are safe:                                          for food use, provided the PHOs in the                the intrinsic concentrations of TFA in
                                                                                                          solvent or carrier contribute no more                 the USDA National Nutrient Database
                                                     1. ‘‘The conservatively estimated                    than 150 parts per million (ppm) (150                 for Standard Reference Release 27. The
                                                  probability of coronary heart disease                   milligrams per kilogram (mg/kg)) IP–                  petitioner estimated the exposure to
                                                  risk falls below the probable de minimis                TFA to the finished food as consumed;                 naturally-occurring TFA from intrinsic
                                                  non-cancer risk range.’’ 3                                 • PHO, or a blend of PHOs, used as                 sources for the U.S. population (aged 2
                                                     2. ‘‘iTFA 4 exposure from the                        a processing aid, or a component                      years or more) to be 1.04 grams/person/
                                                  petitioned uses of PHOs (i.e., 0.05%en                  thereof, provided the PHOs in the                     day (g/p/d) at the mean and 1.91 g/p/d
                                                  [total energy intake per day]) is well                  processing aid contribute no more than                at the 90th percentile. If expressed as a
                                                  below exposure levels in controlled                     50 ppm (50 mg/kg) IP–TFA to the                       percentage of total energy intake per day
                                                  feeding trials, and effects at these low                finished food as consumed;                            (%en), based on a 2000 calorie daily
                                                  iTFA exposures levels cannot be                            • PHO, or a blend of PHOs, used as                 diet, the exposure to TFA from intrinsic
                                                                                                          a pan release agent for baked goods at                sources would be 0.46%en at the mean
                                                  empirically established based on the
                                                                                                          levels up to 0.2 grams/100 grams (0.2                 and 0.75%en at the 90th percentile for
                                                  currently available evidence.’’
                                                                                                          g/100 g) in pan release spray oils,                   the U.S population. The petitioner
                                                     3. ‘‘The incremental increase in iTFA                provided the PHO contributes no more                  estimated the cumulative exposure to
                                                  intake of 0.05%en from the petitioned                   than 0.14 g IP–TFA/100 g spray oil.                   IP–TFA from all petitioned uses of
                                                  uses of PHOs is infinitesimally small                      These proposed uses excluded dietary               PHOs in foods for the U.S. population
                                                  and negligible in comparison to existing                supplements. The physical and                         aged 2 years or more to be 0.121 g/p/d
                                                  background dietary TFA exposure from                    technical effects of the petitioned uses              (0.05%en) at the mean and 0.122 g/p/d
                                                  intrinsic sources.’’                                    of PHOs were specified as: Release                    (0.05%en) at the 90th percentile.
                                                                                                          agents, either alone or in combination
                                                  (Petition, pp. 116–119)                                 with other components (§ 170.3(o)(18));               FDA Assessment
                                                    In this petition denial, we discuss our               processing aids or components thereof                    FDA agrees with the petitioner’s
                                                  evaluation of the petitioner’s request                  (§ 170.3(o)(24)); and as solvents, carriers           estimated exposure to TFA from
                                                  and supporting information in section                   and vehicles for fat soluble coloring                 intrinsic sources, and we have no
                                                  IV organized according to the following                 agents, flavoring agents, and flavor                  concerns regarding the general
                                                  headings: A. Chemical Identity,                         enhancers (§ 170.3(o)(27)).                           methodology used by the petitioner to
                                                  Intended Technical Effects, and                                                                               estimate exposure to IP–TFA from the
                                                                                                          FDA Assessment
                                                  Petitioned Uses of PHOs; B. Estimated                                                                         petitioned uses of PHOs. However, we
                                                  Exposure to Trans Fat; C. Recent                           To better understand how PHOs                      believe the petitioner likely
                                                                                                          would be used as processing aids, we                  underestimated exposure to IP–TFA
                                                  Scientific Literature and Expert
                                                                                                          requested that the petitioner provide                 from the petitioned uses of PHOs for
                                                  Opinions on Trans Fat Consumption; D.
                                                                                                          specific examples. In an email dated                  various reasons, such as their
                                                  Recent Threshold Dose-Response                          May 15, 2017, the petitioner provided
                                                  Research; and E. Risk Estimates and                                                                           determination that 43 percent of the
                                                                                                          several examples of how PHOs may be                   U.S. diet consists of processed foods,
                                                  Safety Arguments. Each of these                         used as processing aids. Many of the                  which we believe is too low, and not
                                                  sections provides a summary of the                      petitioner’s examples involved the use                including all relevant NHANES food
                                                  information provided by the petitioner                  of PHOs as a topical coating to prevent               codes in their exposure estimate (Ref. 5).
                                                  followed by our evaluation of that                      rancidity (e.g., PHO-coated almond                    Although the petitioner’s exposure
                                                  information, prefaced with ‘‘FDA                        slices or candy pieces used as                        estimate could be refined, we consider
                                                  Assessment.’’ Additional information                    ingredients in cookies). We view this                 it sufficient for approximating exposure
                                                  regarding our evaluation of the petition                use of PHOs as having an ongoing
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                                                                                                                                                                from the petitioned uses of PHOs.
                                                  can be found in our three review                        technical effect in food (e.g., to prevent
                                                  memoranda (Refs. 5–7).                                  rancidity and oxidation) and, therefore,              C. Recent Scientific Literature and
                                                                                                          we do not agree that this use would be                Expert Opinions on Trans Fat
                                                                                                          considered a processing aid in                        Consumption
                                                    3 As discussed in section E, the petitioner

                                                  calculates what it considers to be de minimis risks     accordance with §§ 170.3(o)(24) and                     FAP 5A4811 included sections on
                                                  for non-cancer health outcomes.                         101.100(a)(3)(ii) (21 CFR                             dietary guidelines and expert panel
                                                    4 The petitioner uses the abbreviation iTFA to        101.100(a)(3)(ii)). Because we are                    opinions pertaining to trans fat
                                                  refer to industrially-produced TFA in the petition.     denying this petition, we did not need                consumption. In addition, the petition


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                                                  23386                     Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules

                                                  presented a summary of studies                          WHO Nutrition Guidance Expert                         petition stated that the results of a
                                                  assessing the effects of dietary TFA on                 Advisory Group (NUGAG) Subgroup on                    recent meta-analysis by de Souza et al.
                                                  intermediate biomarkers such as low-                    Diet and Health, that affirmed the linear,            in 2015 (Ref. 14) were consistent with
                                                  density lipoprotein cholesterol (LDL–C),                progressive effect of trans fat intake on             previous meta-analyses in finding a
                                                  high-density lipoprotein cholesterol                    blood cholesterol levels (Ref. 12).                   statistically significant increased risk of
                                                  (HDL–C), and other emerging                                The petition mentioned another meta-               CHD when comparing high to low TFA
                                                  biomarkers of CHD risk, and the                         analysis of newer studies conducted by                intake. Regarding individual
                                                  association of dietary TFA intake with                  Hafekost et al. (2015) which reported no              prospective observational studies, the
                                                  risk of CHD and risk of adverse health                  significant effect on LDL–C from a 1%en               petition stated that, ‘‘The results from
                                                  outcomes other than CHD (e.g., stroke,                  TFA intake (including both naturally-                 these studies, while not able to
                                                  metabolic syndrome). Controlled                         occurring TFA and IP–TFA) in exchange                 demonstrate causality, provide
                                                  feeding trials, prospective observational               for cis-monounsaturated fatty acids (cis-             supporting evidence that, although a
                                                  studies, and meta-analyses of these                     MUFA) (Ref. 13). The petition claimed                 relationship between increased CHD
                                                  studies were included in the petitioner’s               that these results support the potential              risk and high levels of TFA intake
                                                  scientific literature review.                           for a threshold trans fat intake below                exists, this observed relationship is
                                                                                                          which no significant effect on blood                  largely based on comparisons of
                                                  FDA Assessment                                          lipids is observed. However, we                       differences in TFA intake above 1%en
                                                    As discussed in our review                            disagree with the petitioner’s                        and has not been established at lower
                                                  memorandum (Ref. 7), we found that the                  interpretation of this study’s                        levels of intake.’’
                                                  petitioner provided incomplete                          conclusions (Ref. 7). We note that the                   We note that the overall results of the
                                                  information on certain topics or                        criteria for inclusion of feeding trials in           meta-analyses and recently published
                                                  misinterpreted some scientific                          this meta-analysis were not rigorous. In              prospective observational studies were
                                                  conclusions.                                            several of the included studies, the diets            generally summarized accurately in the
                                                  1. Dietary Guidelines and Expert Panel                  were not fully controlled. We also note               petition. However, the petition tended
                                                  Reviews                                                 that Hafekost et al. did not conclude                 to understate the strength of the
                                                                                                          that their results supported the potential            evidence from the observational studies
                                                     The petition discussed the major                     for a safe threshold intake level of TFA.             reviewed. In particular, the meta-
                                                  expert panel reports on the health                      Rather, the authors stated, ‘‘An increase             analysis by de Souza et al., a rigorously
                                                  effects of trans fat consumption from the               in LDL was consistent with the results                conducted study commissioned by
                                                  U.S., Australia, Canada, the United                     of Brouwer et al., who identified a                   WHO NUGAG, stated that the ‘‘positive
                                                  Kingdom, the World Health                               significant increase in LDL cholesterol               associations between trans fat intake
                                                  Organization (WHO), the Food and                        with a percent increase in the intake of              and CHD and CHD mortality’’ were
                                                  Agriculture Organization, and the                       industrial TFA.’’ Furthermore, Hafekost               ‘‘reliable and strong’’ and provided
                                                  European Food Safety Authority. We                      et al. conducted an additional analysis,              supplementary analyses supporting a
                                                  note that while the petition provided a                 including the earlier Brouwer et al.                  progressive and linear association of
                                                  generally accurate summary of these                     meta-analysis results together with their             TFA intake and CHD risk (Ref. 14).
                                                  expert reports, some important                          analysis of newer studies alone. The                  Additionally, recently published studies
                                                  information was missing or understated.                 petition did not discuss these additional             by Li et al. in 2015 (Ref. 15) and Wang
                                                  For example, the petition omits the                     analyses. The combined results for the                et al. in 2016 (Ref. 16), with long-term
                                                  expert opinions on the role of HDL–C as                 newer studies alone, together with the                followup and increased statistical
                                                  a biomarker for CHD. The petition also                  earlier meta-analysis, showed a                       power, show significant increases in
                                                  omits that, in addition to the Institute of             statistically significant increase in                 CHD or cardiovascular disease (CVD)
                                                  Medicine’s 2005 report (Ref. 8), many                   LDL–C due to an increase of 1%en                      risk at lower increments of TFA intake
                                                  other expert panels have concluded that                 intake from TFA. In their overall                     than the 1%en stated by the petitioner.
                                                  TFA has a progressive and linear                        summary, Hafekost et al. stated, ‘‘The
                                                  adverse effect on blood lipids and                                                                            4. Other Health Outcomes
                                                                                                          results of the current review are
                                                  associated CHD risk. Furthermore, the                   consistent with previous evidence                        The petitioner concluded, after
                                                  petition understated the                                which indicates a detrimental effect of               reviewing recent scientific literature,
                                                  recommendation from several expert                      consumption of TFA on changes in LDL                  that there is limited, inconsistent, and/
                                                  panels that trans fat intake should be                  and HDL blood cholesterol’’ (Ref. 13).                or weak evidence for any effects of trans
                                                  kept as low as possible by specifically                    Regarding HDL–C and CHD risk, the                  fat intake on other health outcomes
                                                  limiting intake of IP–TFA from PHOs.                    petition underemphasized the impact of                including stroke, all-cause mortality,
                                                                                                          trans fat intake on HDL–C. We note that               cancer, and metabolic syndrome. We do
                                                  2. Effect of Changes In Trans Fat Intake                                                                      not agree with the petitioner’s
                                                                                                          the observed decrease in HDL–C due to
                                                  on LDL–C and HDL–C                                                                                            conclusion, in particular regarding
                                                                                                          TFA intake is consistently reported
                                                     The petition identified five meta-                   across the existing body of TFA research              stroke. In support of the declaratory
                                                  analysis studies (which are combined                    and that HDL–C has been recognized as                 order, we reviewed several well-
                                                  analyses of multiple feeding trials) that               a major risk factor for CHD (Ref. 7).                 conducted studies that provided a
                                                  quantified the effect of changes in trans                                                                     reasonable basis to conclude that TFA
                                                  fat intake on LDL–C and HDL–C in the                    3. Prospective Observational Studies                  intake is associated with an increased
                                                  blood of human test subjects. The                          The petition reviewed the results of               risk of ischemic stroke (a blockage of
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                                                  petition’s summary of these studies was                 prospective observational studies that                blood flow to the brain) (Ref. 2).
                                                  appropriate; however, we note that two                  estimate the association of long-term,                Furthermore, in our review
                                                  available meta-analyses studies were not                habitual TFA intake with CHD risk in                  memorandum for this petition, we
                                                  included in the petition’s discussion:                  large, free-living populations. The                   described more recent studies that
                                                  Zock and co-workers (Refs. 9–11) and                    petition reviewed five meta-analysis                  provide additional evidence supporting
                                                  Brouwer (Ref. 12). In particular, the                   studies (that provided combined                       the association of TFA with stroke, as
                                                  2016 meta-analysis by Brouwer was an                    analyses of several individual                        well as total mortality and elements of
                                                  important study, commissioned by the                    prospective observational studies). The               metabolic syndrome (Ref. 7).


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                                                                            Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules                                              23387

                                                  D. Recent Threshold Dose-Response                       LDL–C associated with a change in IP–                 or CHD risk with higher intakes of trans
                                                  Research                                                TFA intake of 2.2%en represented a                    fat (Ref. 7).
                                                     The petition acknowledged that all                   biologically meaningless change (Ref.
                                                                                                          18). The petition stated that this                    E. Risk Estimates and Safety Arguments
                                                  five of the aforementioned meta-
                                                  analyses (see section C) relied on a                    analysis supports the existence of a                     The petition contained an estimate of
                                                  linear, no-threshold dose-response                      threshold level of IP–TFA intake, below               ‘‘hypothetical change’’ in CHD risk
                                                  relationship between TFA intake and                     which negligible changes in LDL–C                     associated with 0.05%en IP–TFA intake
                                                  blood levels of LDL–C and HDL–C,                        would occur.                                          (the daily amount of energy from IP–
                                                  which assumes any amount of TFA                         FDA Assessment                                        TFA contributed by the petitioned uses
                                                  greater than 0%en causes adverse effects                                                                      of PHOs) that was based on FDA’s four
                                                  on blood cholesterol levels. The petition                  We do not agree that these two studies
                                                                                                                                                                deterministic quantitative risk
                                                  stated, ‘‘Recent research suggests that a               cited by the petitioner provide
                                                                                                                                                                assessment methods referenced in the
                                                  non-threshold linear dose-response                      convincing evidence to refute a linear
                                                                                                          dose-response or provide convincing                   declaratory order (Ref. 4). The petitioner
                                                  model overlooks the complexities of the                                                                       stated that they included this analytical
                                                  physiological effects of macronutrients                 evidence of a threshold in the effect of
                                                                                                          IP–TFA on LDL–C. In our review, we                    approach in the petition ‘‘for
                                                  and other contributing factors to                                                                             expediency and at the request of FDA’’,
                                                  LDL–C levels besides TFAs.’’ In                         identified several design flaws and
                                                                                                          questionable data interpretations                     although the petition questioned the
                                                  particular, the petition cited two recent                                                                     validity of a linear-no threshold dose-
                                                  articles to support the claims that a                   associated with these two studies (Ref.
                                                                                                          7). One major concern about the MOA                   response model for IP–TFA intake and
                                                  linear dose-response model is
                                                                                                          paper (Ref. 17) is that the authors relied            LDL–C and HDL–C on which the FDA
                                                  inappropriate for assessing the effects of
                                                                                                          largely on data from laboratory animal                method is based. The deterministic
                                                  TFA consumption on blood lipids, and
                                                  that a threshold level of trans fat intake              models to hypothesize an MOA that                     quantitative risk assessment approach
                                                  exists (Refs. 17 and 18). In the first                  suggests the existence of a threshold                 used by the petitioner estimated the
                                                  publication, Reichard and Haber (Ref.                   effect of TFA on LDL–C in humans,                     change in CHD risk due to effects on
                                                  17) presented and evaluated a                           despite the differences in biological                 blood lipoproteins from controlled
                                                  hypothesis for the biological mode of                   response to dietary fats and fatty acid               feeding trials, and also estimated the
                                                  action (MOA) for the effect of TFA on                   metabolism between humans and the                     change in CHD risk using direct
                                                  LDL–C based on animal studies.                          animal species used in the study (e.g.,               observations of CHD from prospective
                                                  According to the petition, ‘‘. . . the                  rodents). The authors acknowledged                    studies when there is an isocaloric
                                                  authors concluded the key events in the                 that trans fatty acids such as elaidic acid           replacement of cis-MUFA with IP–TFA
                                                  MOA are the increased production of                     do not increase serum LDL–C in                        in the diet. The petitioner estimated that
                                                  very low density-lipoprotein (VLDL)                     hamsters, and suggest that animal                     the change in CHD risk associated with
                                                  and decreased LDL-clearance due to a                    models may underestimate the effect of                a 0.05%en added IP–TFA intake from
                                                  reduction in the LDL–C mediated                         TFA in humans (Ref. 17).5                             petitioned uses ranged from 0.062
                                                  receptor activity.’’ The authors further                   Regarding the meta-regression paper                percent to 0.665 percent depending on
                                                  concluded the effect of TFA on LDL–C                    (Ref. 18), we found that duplicate data               the risk method used. When expressed
                                                  is non-linear and there is evidence that                points were erroneously used in the                   as a population-based risk estimate, the
                                                  either a threshold exists or the dose-                  analysis; the validity of data points for             annual probability of CHD cases per
                                                  response slope is very shallow at low                   low TFA levels below 3%en was                         100,000 U.S. adults aged 35 and older
                                                  dose levels (Ref. 17).                                  questionable, and the low TFA data did                ranged from 0.42 to 4.54. In other
                                                     In the second article, Allen et al. (Ref.            not come from PHO test diets; and                     words, for every 100,000 U.S. adults,
                                                  18) conducted a meta-regression study                   incorrect variances were applied in the               there could be up to 4.54 additional
                                                  of human controlled feeding trials, that                weighting of the data based on the study              cases (fatal and non-fatal) of CHD
                                                  considered both linear and nonlinear                    designs (Ref. 7). We also question the                attributed to an intake of 0.05%en IP–
                                                  dose-response models to assess the                      authors’ suggestion that the within                   TFA from the petitioned uses of PHOs.
                                                  effect of IP–TFA intake on LDL–C and                    person, day-to-day variability of blood
                                                  determine which shape fit best with the                 LDL–C levels can be used to represent                    The petition asserts a standard of ‘‘de
                                                  MOA proposed by Reichard and Haber                      the minimum increment in LDL–C that                   minimis risk.’’ According to the
                                                  based on animal studies. (In this case,                 is adverse (Ref. 7). Additionally, we                 petitioner, a de minimis risk implies
                                                  the meta-regression is a meta-analysis                  note that the authors’ proposed                       that a risk is so small that it should be
                                                  that focuses on dose-response                           S-shaped dose-response model that                     ignored, and the petitioned use should
                                                  relationships.) The Allen et al. meta-                  levels off at high trans fat doses (above             be considered safe. The petitioner
                                                  regression used an evidence map to                      3%en) is not consistent with the results              referenced three arguments to explain
                                                  identify additional experimental data                   of numerous controlled feeding trials of              its de minimis risk principle: (1) The
                                                  for the effect of IP–TFA intake on LDL–                 IP–TFA at higher doses or with                        probability of a risk is below an
                                                  C, particularly in the low dose region of               prospective observational studies which               acceptable cutoff (i.e., ‘‘bright line’’ or
                                                  the response curve where IP–TFA intake                  show increases in serum LDL–C levels                  threshold); (2) there is a lack of
                                                  is between zero and 3%en (Ref. 19).                                                                           scientific data to establish that the risk
                                                  According to Allen et al., an S-shaped                    5 The scientific evidence that PHOs are no longer   exists (i.e., the risk is non-detectable); or
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                                                  model with an assumed threshold at                      GRAS for use in food was not based on animal          (3) the probability of the risk is less than
                                                                                                          studies, such as those used in the Reichard and       the natural occurrence of the risk (Ref.
                                                  low IP–TFA doses explained more of                      Haber MOA, but rather included results from
                                                  the study-to-study variability compared                 controlled feeding studies on trans fatty acid        20). While neither the FD&C Act nor
                                                  to the linear dose-response model (Ref.                 consumption in humans, findings from long-term        FDA’s regulations regarding the
                                                  18). Using assumptions about intra-                     prospective epidemiological studies in human          evaluation of the safety of food additives
                                                                                                          populations, and the opinions of expert panels that   in response to a food additive petition
                                                  individual measurement variation for                    there is no threshold intake level for IP–TFA that
                                                  LDL–C and the S-shaped model, the                       would not increase an individual’s risk of CHD (78    refer to de minimis risk, we review each
                                                  authors concluded that the change in                    FR 67169 at 67172).                                   of these arguments in turn.


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                                                  23388                     Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules

                                                  1. De minimis ‘‘Bright Line’’ or                        the study authors themselves question                 assessment to further bolster our
                                                  Threshold Argument                                      whether the non-cancer risks associated               decision that the estimated risks
                                                    The petition referenced an article by                 with the EPA’s reference values                       associated with the petitioned uses of
                                                  Castorina and Woodruff (Ref. 21) in                     represent ‘‘acceptable levels’’ of                    PHOs cause them to be unsafe food
                                                  which the authors estimated risks for                   exposure from a public health                         additives (Ref. 6).
                                                                                                          perspective (Ref. 21). Furthermore, we
                                                  non-cancer health outcomes from                                                                               c. FDA’s Quantitative Probabilistic Risk
                                                                                                          note that in the Castorina and Woodruff
                                                  hypothetical lifetime ingestion or                                                                            Assessment
                                                                                                          paper, the estimated risks were based on
                                                  inhalation exposures to select                                                                                   The deterministic risk assessment
                                                                                                          biochemical and physiological changes
                                                  environmental chemicals at the U.S.                                                                           approach that was used by both the FDA
                                                                                                          associated with several non-cancer
                                                  Environmental Protection Agency’s                                                                             in our declaratory order and by the
                                                                                                          health outcomes that are much less
                                                  (EPA) established reference doses (RfDs)                                                                      petitioner in FAP 5A4811 to assess CHD
                                                                                                          serious than CHD cases or CHD deaths.
                                                  or reference concentrations. The authors                                                                      risk associated with IP–TFA exposure is
                                                                                                          For example, some of the biochemical
                                                  concluded that the non-cancer risk                                                                            a risk assessment approach using
                                                                                                          and physiological changes the authors
                                                  associated with RfDs ranged from 1 in                                                                         assigned values for discrete scenarios
                                                                                                          considered included small intestinal
                                                  10,000 (1 × 10¥4) to 5 in 1,000 (5 ×                    lesions, fatty cyst formation in the liver,           (e.g., using most likely scenarios or
                                                  10¥3) using a linear dose-response                      elevated serum glutamate-pyruvate                     mean values) (Ref. 6). The deterministic
                                                  relationship for the environmental                      transaminases, chronic irritation of                  approach determines the robustness of
                                                  chemicals the authors selected. The                     stomach, decreased lymphocyte count,                  the risk of CHD. However, it has
                                                  petitioner applied a safety factor to the               changes in red blood cell volumes,                    limitations in that it is inadequate in
                                                  authors’ risk estimates associated with                 decreased mean terminal body weights,                 applying population or other parameter
                                                  RfDs to arrive at a proposed probability                and decreased maternal body weight                    variability information and it takes into
                                                  of risk, ranging from 2 in 100,000                      gain. Therefore, we conclude that the                 consideration only a few discrete results
                                                  (2 × 10¥5) to 1 in 1,000 (1 × 10¥3),                    petitioner’s use of this single article to            (e.g., mean risk estimates), overlooking
                                                  which the petitioner deemed to be a de                  support their de minimis risk argument                many others (e.g., probability
                                                  minimis risk. The petitioner compared                   regarding the risk of CHD or CHD death                distributions of risk estimates). The
                                                  this risk range to the results of their                 associated with IP–TFA exposure is                    impact of different risk parameter values
                                                  quantitative risk estimate, which                       inadequate.                                           and uncertainty in risk methods relative
                                                  predicted the annual probability of CHD                                                                       to results also cannot be quantified (Ref.
                                                  cases attributed to 0.05%en IP–TFA                      b. Petitioner’s Quantitative                          6).
                                                  intake from the petitioned PHO uses to                  Deterministic Risk Assessment                            The probabilistic approach allows for
                                                  be in the range of 0.42 per 100,000                        The petitioner relied on the de                    the analysis of human variability and
                                                  adults (or 4.2 × 10¥6) to 4.5 per 100,000               minimis risk principle to conclude that               uncertainty in the risk method to be
                                                  adults (or 4.5 × 10¥5). The petition                    the petitioned uses of PHOs are safe                  incorporated into both the exposure and
                                                  concluded that the estimated risk from                  because the estimated probability of                  risk assessments, if high quality
                                                  0.05%en IP–TFA intake from petitioned                   CHD risk associated with IP–TFA from                  empirical data with the probability
                                                  PHO uses is de minimis because it is                    the petitioned uses of PHOs falls below               distribution information for key
                                                  well below the probable de minimis risk                 the probable de minimis non-cancer risk               parameters are used in the risk
                                                  ranges for non-cancer risk calculated by                range. The petition included a                        assessment (Ref. 6). We considered that
                                                  applying a safety factor to the risks                   quantitative deterministic risk                       at the petitioned IP–TFA exposure of
                                                  presented in the Castorina and                          assessment that estimated the annual                  0.05%en, there would be greater
                                                  Woodruff article.                                       probability of CHD cases that may be                  uncertainty in the CHD risk estimates
                                                                                                          associated with IP–TFA from petitioned                than the IP–TFA exposure of 0.5%en
                                                  FDA Assessment                                                                                                which was used in the declaratory
                                                                                                          uses of PHOs ranged from 0.42 to 4.54
                                                    We will first address the petitioner’s                per 100,000 U.S. adults. We note,                     order, and that the mean risk estimates
                                                  reliance on the Castorina and Woodruff                  though, that the petition did not include             alone would not be sufficient to
                                                  paper to determine the concept of de                    an estimated annual number of CHD                     demonstrate safety. Therefore, we
                                                  minimis risk, followed by our comments                  cases or estimated annual number of                   conducted a probabilistic risk
                                                  on the petitioner’s deterministic risk                  CHD deaths associated with IP–TFA                     assessment for the CHD risk associated
                                                  assessment. We will also include a                      from the proposed uses of PHOs. Using                 with an IP–TFA exposure of 0.05%en
                                                  discussion of the probabilistic risk                    the petitioner’s estimated annual rate of             taking into consideration the variability
                                                  assessment that we conducted as part of                 CHD cases per 100,000 adults, the U.S.                and uncertainty associated with IP–TFA
                                                  our review.                                             Census estimate of 166.7 million adults               exposure and the risk parameters, and
                                                                                                          in the U.S. population in 2014, and a 32              estimated both the probabilistic means
                                                  a. Castorina and Woodruff Study
                                                                                                          percent CHD fatality rate reported by the             and the uncertainty around the means.
                                                     We disagree with the petitioner’s                    Centers for Disease Control and                          We used FDA’s four risk methods
                                                  interpretation of the Castorina and                     Prevention (CDC), we expanded the                     based on a linear no-threshold dose-
                                                  Woodruff article on which the                           petitioner’s risk estimates associated                response model (Ref. 6) to estimate
                                                  petitioner’s safety conclusion is based.                with IP–TFA from petitioned uses of                   changes in CHD risk when replacing cis-
                                                  The application of the Castorina and                    PHOs to estimate a range of 700 to 7,570              MUFA or saturated fatty acids at
                                                  Woodruff study results has limitations                  cases of CHD per year including                       0.05%en, with the same percentage of
sradovich on DSK3GMQ082PROD with PROPOSALS




                                                  as a basis for inferring that IP–TFA from               between 224 and 2,422 deaths from                     energy from IP–TFA. The probabilistic
                                                  petitioned PHO uses is safe because it                  CHD per year, which FDA does not                      means were in line with the results
                                                  represents de minimis risk. The study is                consider to be insignificant (Ref. 7).                estimated using the deterministic
                                                  a single, exploratory analysis of whether               Additionally, we conducted our own                    approach. The probabilistic approach
                                                  EPA reference values represent                          deterministic risk assessment to verify               also quantified the probability
                                                  negligible risk levels; it is not a                     that the petitioner’s methods were                    distribution of the risk estimates (e.g.,
                                                  consensus that defines a concept of de                  appropriate, and we expanded our                      the lower and upper 95 percent
                                                  minimis risk or safe exposure. In fact,                 analysis to include a probabilistic risk              statistical uncertainty intervals (95


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                                                                            Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules                                              23389

                                                  percent UIs)). The results included                     2. Non-Detectability Argument                         subjects. We acknowledge that there are
                                                  estimated changes in percent CHD risk,                     The petitioner argued that the                     limits to the statistical power of
                                                  increases in the rate of annual CHD                     estimated exposure to IP–TFA from                     controlled feeding trials to measure
                                                  cases (both fatal and non-fatal) per                    petitioned uses of PHOs (i.e., 0.05%en)               changes in LDL–C from low levels of
                                                  100,000 U.S. adults, and increases in the               is well below the exposure levels in                  TFA exposure. However, the lack of
                                                  number of annual CHD cases, including                                                                         data from controlled feeding trials on
                                                                                                          controlled feeding studies and effects at
                                                  CHD deaths, among U.S. adults. We also                                                                        the effect of TFA intake on blood lipids
                                                                                                          these low IP–TFA levels cannot be
                                                  extended Method 4 (prospective                                                                                at lower TFA intake is not due to a
                                                                                                          empirically established based on the
                                                  observational studies) to estimate the                                                                        potential threshold below which TFA
                                                                                                          currently available evidence. The
                                                  annual number of CVD deaths among                                                                             intake has no effect on LDL–C and other
                                                                                                          petition questioned the appropriateness
                                                  this same population. (CVD deaths                                                                             blood lipids. Rather, the lack of data at
                                                                                                          of using a linear dose-response model
                                                  include deaths from CHD, strokes, and                                                                         lower TFA intake is due to the limited
                                                                                                          for quantifying the effect of lower levels
                                                  other vascular diseases.) Our assessment                                                                      statistical power to detect significant
                                                                                                          of trans fat intake (i.e., <3%en) on LDL–
                                                  methodology is documented in our                                                                              changes in LDL–C at TFA intake below
                                                                                                          C and HDL–C, and maintained that
                                                  review memorandum (Ref. 6).                                                                                   about 3 percent of energy in controlled
                                                    Results from our probabilistic risk                   there is a general lack of empirical                  feeding trials with feasible sample size
                                                  assessment demonstrate that consuming                   evidence that consumption of low levels               of about 100 participants. For example,
                                                  IP–TFA at a level of 0.05%en per person                 of trans fat increases CHD risk due to an             we estimated that it would require more
                                                  per day, instead of cis-MUFA, can cause                 adverse effect on blood lipoproteins.                 than 300,000 participants in
                                                  a mean increase in annual CHD cases                     The petition highlighted one study (Ref.              hypothetical PHO feeding trials to
                                                  per 100,000 U.S. adults from 0.478 (95                  18) suggesting that a linear dose-                    detect statistically significant changes
                                                  percent UI 0.299 to 0.676) using the                    response model was not appropriate for                LDL–C at the IP–TFA dietary exposure
                                                  FDA risk method based on changes of                     quantifying effects of lower levels of IP–            of 0.05%en (Refs. 6 and 7).
                                                  LDL–C alone (Method 1) to 4.038 (95                     TFA intake on LDL–C. In addition, the
                                                  percent UI 2.120 to 6.280) using the                    petition noted that the trans fat content             b. Empirical Evidence From New
                                                  FDA risk method based on prospective                    of control diets used in published                    Population Studies
                                                  observational studies (Method 4). These                 feeding studies ranged from non-                         Recent population studies have
                                                  increases correspond to a mean increase                 detectable to 2.4%en and suggested, by                shown empirical evidence of adverse
                                                  in annual CHD cases from 814 (95                        example, that the non-detectable level of             effects of lower IP–TFA intake levels on
                                                  percent UI 510 to 1,151, using Method                   TFA in a test diet could be at 0.15%en,               CHD risk. Two recent prospective
                                                  1) to 6,877 (95 percent UI 3,611 to                     which is three times higher than IP–                  observational studies with long term
                                                  10,694, using Method 4), which                          TFA from petitioned uses of PHOs.                     follow-up found significant increases in
                                                  includes annual deaths from CHD from                    Moreover, the petition noted that overall             CHD risk or CVD mortality at trans fat
                                                  290 (95 percent UI 182 to 410, using                    the IP–TFA intake from petitioned uses                intake increments as low as 0.3%en to
                                                  Method 1) to 2,450 (95 percent UI 1,287                 of PHOs (0.05%en) is well below the                   0.6%en (Refs. 15 and 16). This is about
                                                  to 3,811, using Method 4). The other                    intake level of diets tested in the                   1/10 of the approximately 3 percent of
                                                  two FDA risk methods produced                           controlled feeding trials that were relied            energy from TFA intake that can be
                                                  increases in risk values from CHD that                  upon in the meta-analyses to assess the               studied in controlled feeding trials of
                                                  were between those estimated by                         effect of IP–TFA on CHD risk. Because                 lipid biomarkers, and is roughly tenfold
                                                  Method 1 and Method 4.                                  the impact of low level IP–TFA intakes                higher than the 0.05%en IP–TFA
                                                    The same amount of IP–TFA                             cannot be detected by scientific studies,             exposure from petitioned PHO uses.
                                                  replacing saturated fatty acids would                   the petition concluded that the IP–TFA                   Two recent studies independently
                                                  result in lower estimates of annual CHD                 intake from petitioned uses of PHOs                   examined the public health effects of
                                                  cases and CHD-related deaths than those                 could be considered de minimis.                       restricting trans fat in eateries in several
                                                  estimated by replacing cis-MUFA with                                                                          New York state counties between 2007
                                                                                                          FDA Assessment                                        and 2011 (Refs. 23 and 24). In one
                                                  IP–TFA. We estimated the mean
                                                  increase in annual CHD cases to be 170                    We will address the petitioner’s non-               study, the authors compared records of
                                                  (using Method 1) to 5,110 (using                        detectability argument with a three-                  hospital admissions for heart attack and
                                                  Method 4), which includes 60 to 1,821                   prong response. First, we will discuss                stroke in counties that had TFA
                                                  annual deaths from CHD. Using                           the issue of statistical power and how it             restrictions and in control counties that
                                                  extended Method 4, the same amount of                   relates to detectable changes in clinical             had no restrictions (Ref. 23). They found
                                                  IP–TFA replacing either saturated fatty                 feeding trials. Next, we will review                  that there was an additional 6.2 percent
                                                  acids or carbohydrate could cause more                  empirical evidence of adverse effects of              decline in hospital admissions for heart
                                                  than 6,500 CVD deaths per year in U.S.                  lower IP–TFA intakes from several                     attacks and strokes in the populations of
                                                  adults. The results of our analyses are                 recent population studies. Lastly, we                 counties with TFA restrictions. This
                                                  described further in our review                         will comment on the body of evidence                  reduction corresponds to 43 CVD events
                                                  memorandum (Ref. 6).                                    that supports a no-threshold, linear                  prevented annually per 100,000
                                                    Our deterministic and probabilistic                   dose-response model to characterize the               persons. In another study, the authors
                                                  quantitative risk assessments                           adverse health effects of trans fat intake.           analyzed the association of trans fat
                                                  demonstrate that there is a probable                                                                          restrictions in certain New York state
                                                  significant health risk associated with                 a. Statistical Power of Controlled                    counties and annual CVD mortality rates
sradovich on DSK3GMQ082PROD with PROPOSALS




                                                  0.05%en from IP–TFA from the                            Feeding Trials                                        (Ref. 24). They found a 4.5 percent
                                                  petitioned uses of PHOs. Our analyses                      Statistical power is the probability               decrease in CVD mortality in counties
                                                  do not support the petitioner’s claims                  that a study will correctly detect an                 with trans fat restrictions compared
                                                  that 0.05%en from IP–TFA results in de                  effect when an effect exists (Ref. 22).               with control counties. This reduction
                                                  minimis risk or that there is a                         Larger sample sizes generally result in               corresponds to 13 fewer CVD deaths
                                                  reasonable certainty that PHOs are not                  higher statistical power, increasing the              annually per 100,000 persons. Both
                                                  harmful under the intended conditions                   likelihood that a study will be able to               studies, using separate data sources,
                                                  of use.                                                 identify differences in the study                     showed consistent results of a ‘‘real-


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                                                  23390                     Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules

                                                  world’’ public health impact associated                 3. Natural Occurrence Argument                        the data overall, we considered for the
                                                  with the removal of trans fat in                           The petitioner based its third                     purposes of our safety assessment that
                                                  restaurant food.                                        argument on a ‘‘natural occurrence’’                  TFA from intrinsic sources is, in
                                                     Four studies published in 2017                       theory which purports that a risk due to              general, chemically and
                                                  examined data on plasma trans fatty                                                                           pharmacologically related to IP–TFA
                                                                                                          human activity may be de minimis and
                                                  acid concentrations in U.S. adults from                                                                       from PHOs.
                                                                                                          would not cause the activity to be
                                                  the NHANES of 1999–2000 and 2009–                                                                                We disagree with the petitioner’s
                                                                                                          considered unsafe provided that the risk
                                                  2010 (Refs. 25–28). These studies                                                                             assertion that the IP–TFA exposure from
                                                                                                          does not exceed the natural occurrence
                                                  showed the association between plasma                                                                         the petitioned uses of PHOs is safe
                                                                                                          of the same risk (Ref. 20). Specifically,
                                                  TFA and serum lipid and lipoprotein                                                                           because it is insignificant in comparison
                                                                                                          the petitioner argued that the petitioned
                                                  (i.e., LDL–C and HDL–C) concentration                                                                         to existing background dietary TFA
                                                                                                          uses of PHOs are safe because the
                                                  before and after reductions in TFA                                                                            exposure. We note that the per capita
                                                                                                          incremental increase in IP–TFA intake
                                                  consumption occurred in the U.S.                                                                              IP–TFA intake of 0.05%en from
                                                                                                          from petitioned PHO uses (i.e.,                       petitioned uses of PHOs is
                                                  population. On average, plasma TFA
                                                  concentrations in U.S. adults were about                0.05%en) is infinitesimally small and                 approximately 10 percent of mean TFA
                                                  54 percent lower in 2009–2010                           negligible in comparison to existing                  intake from intrinsic sources; we do not
                                                  compared to 1999–2000 (Refs. 26 and                     background dietary TFA exposure from                  consider this to be an infinitesimally
                                                  27). Significant improvements in blood                  intrinsic sources. As described in                    small or negligible amount. The
                                                  lipids (e.g., lower LDL–C and                           section IV.B, the petitioner estimated                contribution of IP–TFA intake from
                                                  triglycerides, higher HDL–C) occurred                   the mean exposure to TFA from                         petitioned uses of PHOs is not trivial,
                                                  over time as plasma TFA concentrations                  intrinsic sources (e.g., naturally-                   but rather will increase the mean
                                                  decreased (Refs. 25 and 26). Despite                    occurring TFA from meat and dairy                     population TFA exposure by 10 percent.
                                                  substantial reductions in TFA intake                    foods) to be 0.46%en. The petition                    Food sources of naturally-occurring
                                                  over time, plasma TFA concentrations                    stated that the estimated intake of IP–               TFA are widely consumed in the
                                                  were significantly and consistently                     TFA of 0.05%en from petitioned uses of                population, and therefore few members
                                                  associated with serum lipid and                         PHOs equates to the 1.2th percentile of               of the population consume 0.05%en
                                                  lipoprotein concentrations at both time                 the TFA intake distribution from                      TFA or less. As the petition indicated,
                                                  periods (Ref. 27). Results were similar                 intrinsic sources. The petition explained             0.05%en from IP–TFA from petitioned
                                                  for metabolic syndrome and most of its                  further that this amount of IP–TFA                    uses of PHOs corresponds to about the
                                                  components such as large waistline,                     intake is within the variability of the               1.2th percentile of population TFA
                                                  high fasting glucose, and high                          TFA intake from intrinsic sources and                 intake from intrinsic sources. We assert
                                                  triglycerides (Ref. 28). The authors                    below the 5th percentile. Thus, the                   that this comparison is not particularly
                                                  concluded that these studies do not                     petition concluded that the petitioned                relevant to whether the per capita IP–
                                                  support the existence of a threshold                    uses are safe because the incremental                 TFA intake is significant because the
                                                  under which the association between                     increase in IP–TFA exposure from the                  contribution of IP–TFA exposure from
                                                  plasma TFA concentration and lipid                      petitioned uses of PHOs is                            the petitioned uses is in addition to, not
                                                  profiles might become undetectable                      infinitesimally small and negligible in               substitutional for, exposure to TFA from
                                                  (Refs. 27 and 28).                                      comparison to existing background                     intrinsic sources. Rather, the relevant
                                                                                                          dietary TFA exposure from intrinsic                   comparison is that the per capita IP–
                                                  c. Consistent Support of a Progressive                  sources.                                              TFA intake, 0.05%en, is approximately
                                                  and Linear Dose-Response
                                                                                                          FDA Assessment                                        10 percent of mean TFA intake from
                                                     In response to the petitioner’s                                                                            naturally-occurring sources. For these
                                                  argument of a non-linear dose-response,                    For our safety assessment, we                      reasons, we disagree with the
                                                  we note that the vast majority of                       considered as a worst-case scenario the               petitioner’s argument that the petitioned
                                                  scientific studies have been consistent                 assumption that TFA from intrinsic                    uses of PHOs are safe because they are
                                                  in their conclusions that trans fat                     sources is chemically and                             negligible in comparison to existing
                                                  consumption has a progressive and                       pharmacologically related to IP–TFA                   background dietary TFA exposure from
                                                  linear adverse effect on blood lipids and               from PHOs. In general, TFA from                       intrinsic sources.
                                                  CHD risk (Ref. 7). FDA’s 2015 review of                 intrinsic sources and IP–TFA contain                     As stated earlier, there is no explicit
                                                  the scientific evidence for human health                the same trans fatty acid isomers,                    reference to de minimis risks under
                                                  effects of TFA concluded: (1) There is                  although in different proportions (Ref.               either the FD&C Act or FDA’s
                                                  no evidence of a threshold below which                  12). The most recent evidence from                    regulations regarding the evaluation of
                                                  TFA does not affect blood lipids and (2)                controlled feeding trials shows                       the safety of food additives in response
                                                  both controlled feeding trials and                      comparable effects on blood                           to a food additive petition. Based on the
                                                  prospective observational studies                       lipoproteins such as LDL–C and HDL–                   data submitted by the petitioner, FDA
                                                  strongly support the conclusion that                    C by naturally-occurring TFA and IP–                  has determined that the petitioned uses
                                                  trans fat intake has a progressive and                  TFA (Ref. 7). Results of prospective                  present more than a de minimis or
                                                  linear effect that increases CHD risk,                  observational studies specifically of                 negligible risk. Therefore, FDA has not
                                                  with no evidence of a threshold (Ref. 2).               TFA from intrinsic sources (rather than               found it necessary as part of its petition
                                                  Numerous expert panels discussed in                     total TFA) are relatively sparse, and                 response to determine how the concept
                                                  our 2015 review and in the current                      generally do not show an association of
sradovich on DSK3GMQ082PROD with PROPOSALS




                                                                                                                                                                of de minimis risk may apply to the
                                                  review also support this conclusion.                    naturally-occurring TFA with CHD risk,                safety analysis under section 409 of the
                                                  Additional evidence from newer studies                  possibly due to limitations of the                    FD&C Act.
                                                  also supports the conclusion that TFA                   studies (Ref. 7). Regarding the effect of
                                                  has a progressive and linear adverse                    TFA from intrinsic sources on adverse                 V. Comments on the Filing Notification
                                                  effect on blood lipids and CHD risk                     health outcomes other than CHD (e.g.,                   We received 10 comments in response
                                                  (Refs. 12 and 29). This is discussed in                 metabolic syndrome and diabetes),                     to the petition’s filing notification.
                                                  detail in our review memorandum (Ref.                   study results are divergent (Refs. 6 and              Seven comments expressed opposition
                                                  7).                                                     7). Although there are inconsistencies in             to the petition, one comment was about


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                                                                            Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules                                                23391

                                                  labeling of PHOs, one comment did not                   ADDRESSES) either electronic or written                    and Cardiovascular Disease Risk
                                                  pertain to the petition, and one                        objections. You must separately number                     Assessments of Exposure from
                                                  comment was a duplicate submission.                     each objection, and within each                            Industrially-Produced Trans Fatty Acid
                                                                                                                                                                     (IP–TFA) from Proposed Uses of Partially
                                                  All of the comments opposing the                        numbered objection you must specify
                                                                                                                                                                     Hydrogenated Vegetable Oils (PHO) in
                                                  petition cited the adverse health effects               with particularity the provision(s) to                     Select Foods, April 16, 2018.
                                                  associated with the consumption of                      which you object, and the grounds for                 7. FDA Memorandum from J. Park to E.
                                                  TFA. None of the comments provided                      your objection. Within each numbered                       Anderson, Scientific Literature Review
                                                  information to support the petitioner’s                 objection, you must specifically state                     Update on Trans Fats with Detailed
                                                  conclusion that the proposed uses of                    whether you are requesting a hearing on                    Responses to the Petitioner’s Safety
                                                  PHOs are safe.                                          the particular provision that you specify                  Conclusions on the Petitioned Uses of
                                                                                                          in that numbered objection. If you do                      Partially Hydrogenated Oils (PHOs),
                                                  VI. Conclusion                                                                                                     April 16, 2018.
                                                                                                          not request a hearing for any particular
                                                     FAP 5A4811 requested that the food                                                                         8. IOM/NAS, ‘‘Dietary Reference Intakes for
                                                                                                          objection, you waive the right to a
                                                  additive regulations be amended to                                                                                 Energy Carbohydrate, Fat, Fatty Acids,
                                                                                                          hearing on that objection. If you request                  Cholesterol, and Amino Acids
                                                  provide for the safe use of PHOs as a                   a hearing, your objection must include                     (Macronutrients),’’ National Academies
                                                  solvent or carrier for flavoring agents,                a detailed description and analysis of                     Press, Washington, DC, 2002/2005,
                                                  flavor enhancers, and coloring agents; as               the specific factual information you                       Available at: https://www.nap.edu.
                                                  a processing aid; and as a pan release                  intend to present in support of the                   9. Katan, M.B., P.L. Zock, and R.P. Mensink,
                                                  agent for baked goods at specific use                   objection in the event that a hearing is                   ‘‘Trans Fatty Acids and Their Effects on
                                                  levels. After reviewing the petition, as                held. If you do not include such a                         Lipoproteins in Humans,’’ Annual
                                                  well as additional data and information                 description and analysis for any                           Review of Nutrition, 15:473–93, 1995.
                                                  relevant to the petitioner’s request, we                particular objection, you waive the right             10. Zock, P.L., M.B. Katan, and R.P. Mensink,
                                                  determined that the petition does not                                                                              ‘‘Dietary Trans Fatty Acids and
                                                                                                          to a hearing on the objection.                             Lipoprotein Cholesterol,’’ American
                                                  contain convincing evidence to support                    It is only necessary to send one set of                  Journal of Clinical Nutrition, 61(3):617,
                                                  the conclusion that the proposed uses of                documents. Identify documents with the                     1995.
                                                  PHOs are safe. Therefore, FDA is                        docket number found in brackets in the                11. Zock, P.L. and R.P. Mensink, ‘‘Dietary
                                                  denying FAP 5A4811 in accordance                        heading of this document. Any                              Trans-Fatty Acids and Serum
                                                  with 21 CFR 171.100(a).                                 objections received in response to the                     Lipoproteins in Humans,’’ Current
                                                                                                          regulation may be seen in the Dockets                      Opinion in Lipidology, 7(1):34–7, 1996.
                                                  VII. Compliance Date                                                                                          12. Brouwer, I.A., ‘‘Effect of Trans-Fatty Acid
                                                                                                          Management Staff between 9 a.m. and 4
                                                     As discussed in section II, the                      p.m., Monday through Friday, and will                      Intake on Blood Lipids and Lipoproteins:
                                                  declaratory order concluded that PHOs                   be posted to the docket at http://                         A Systematic Review and Meta-
                                                  are no longer GRAS for any use in                                                                                  Regression Analysis,’’ Geneva: World
                                                                                                          www.regulations.gov. We will publish
                                                  human food and established a                                                                                       Health Organization, 2016.
                                                                                                          notice of the objections that we have                 13. Hafekost, K., T.A. O’Sullivan, D.
                                                  compliance date of June 18, 2018 (80 FR                 received or lack thereof in the Federal                    Lawrence, and F. Mitrou, ‘‘Systematic
                                                  34650). In light of our denial of FAP                   Register.                                                  Review of the Evidence for a
                                                  5A4811, we acknowledge that the food                                                                               Relationship Between Trans-Fatty Acids
                                                  industry needs additional time to                       IX. References
                                                                                                                                                                     and Blood Cholesterol,’’ Canberra,
                                                  identify suitable replacement substances                  The following references are on                          Australia: On behalf of Food Standards
                                                  for the petitioned uses of PHOs and that                display in the Dockets Management                          Australia New Zealand, 2014, available
                                                  the food industry has indicated that 12                 Staff (see ADDRESSES) and are available                    at: http://www.foodstandards.gov.au/
                                                  months could be a reasonable timeframe                  for viewing by interested persons                          publications/Pages/Systematic-Review-
                                                  for reformulation activities (Ref. 30).                 between 9 a.m. and 4 p.m., Monday                          of-the-evidence-for-a-relationship-
                                                                                                          through Friday; they are also available                    between-trans-fatty-acids-and-blood-
                                                  Therefore, elsewhere in this issue of the                                                                          cholesterol-.aspx.
                                                  Federal Register, we have extended the                  electronically at http://
                                                                                                                                                                14. de Souza, R.J., A. Mente, A. Maroleanu,
                                                  compliance date to June 18, 2019, for                   www.regulations.gov. FDA has verified                      et al., ‘‘Intake of Saturated and Trans
                                                  the manufacturing of food with the                      the website addresses, as of the date this                 Unsaturated Fatty Acids and Risk of All
                                                  petitioned uses of PHOs. Food                           document publishes in the Federal                          Cause Mortality, Cardiovascular Disease,
                                                  manufactured with the petitioned uses                   Register, but websites are subject to                      and Type 2 Diabetes: Systematic Review
                                                  after June 18, 2019 may be subject to                   change over time.                                          and Meta-Analysis of Observational
                                                  enforcement action by FDA.                                                                                         Studies,’’ BMJ, 351:h3978, 2015.
                                                                                                          1. Sacks, F.M., A.H. Lichtenstein, J.H.Y. Wu,
                                                     In addition, for food manufactured                        et al. ‘‘Dietary Fats and Cardiovascular         15. Li, Y., Hruby, A., A.M. Bernstein, et al.,
                                                                                                                                                                     ‘‘Saturated Fats Compared with
                                                  with the petitioned uses before June 18,                     Disease: A Presidential Advisory from
                                                                                                               the American Heart Association.’’                     Unsaturated Fats and Sources of
                                                  2019, elsewhere in this issue of the                                                                               Carbohydrates in Relation to Risk of
                                                  Federal Register, we are extending the                       Circulation 136(3): e1–e23, 2017.
                                                                                                          2. FDA Memorandum from J. Park to M.                       Coronary Heart Disease: A Prospective
                                                  compliance date to January 1, 2021.                                                                                Cohort Study,’’ Journal of the American
                                                                                                               Honigfort, Scientific Update on
                                                  This time frame will allow                                   Experimental and Observational Studies                College of Cardiology, 66(14):1538–48,
                                                  manufacturers, distributors, and                             of Trans Fat Intake and Coronary Heart                2015.
                                                  retailers to exhaust product inventory of                    Disease Risk, June 11, 2015.                     16. Wang, D.D., Y. Li, S.E. Chiuve, et al.,
                                                  foods made with the petitioned uses                     3. FDA Memorandum from J. Park to M.                       ‘‘Association of Specific Dietary Fats
                                                                                                               Honigfort, Literature Review, June 11,                with Total and Cause-Specific
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                                                  before the manufacturing compliance
                                                                                                               2015.                                                 Mortality,’’ JAMA Internal Medicine,
                                                  date. All foods containing unauthorized
                                                                                                          4. FDA Memorandum from J. Park to M.                       176(8):1134–45, 2016.
                                                  uses of PHOs after January 1, 2021 may                                                                        17. Reichard, J.F. and L.T. Haber, ‘‘Mode-of-
                                                                                                               Honigfort, Quantitative Estimate of
                                                  be subject to FDA enforcement action.                        Industrial Trans Fat Intake and Coronary              Action Evaluation for the Effect of Trans
                                                  VIII. Objections                                             Heart Disease Risk, June 11, 2015.                    Fatty Acids on Low-Density Lipoprotein
                                                                                                          5. FDA Memorandum from D. Doell to E.                      Cholesterol,’’ Food and Chemical
                                                     Any persons that may be adversely                         Anderson, April 13, 2018.                             Toxicology, 98(Pt B):282–94, 2016.
                                                  affected by this document may file with                 6. FDA Memorandum from J. Park to E.                  18. Allen, B.C., M.J. Vincent, D. Liska, and
                                                  the Dockets Management Staff (see                            Anderson, Quantitative Coronary Heart                 L.T. Haber, ‘‘Meta-Regression Analysis of



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                                                  23392                     Federal Register / Vol. 83, No. 98 / Monday, May 21, 2018 / Proposed Rules

                                                       the Effect of Trans Fatty Acids on Low-            DEPARTMENT OF HOMELAND                                application that this year’s Ocean City
                                                       Density Lipoprotein Cholesterol,’’ Food            SECURITY                                              Grand Prix would be held on a different
                                                       and Chemical Toxicology, 98(Pt B):295–                                                                   date this year from that published in the
                                                       307, 2016.                                         Coast Guard                                           Code of Federal Regulations (CFR) at
                                                  19. Liska, D.J., C.M. Cook, D.D. Wang, P.C.                                                                   Table to 33 CFR 100.501 at (b.)19. The
                                                       Gaine, and D.J. Baer, ‘‘Trans Fatty Acids          33 CFR Part 100                                       estimated date for this annual event
                                                       and Cholesterol Levels: An Evidence
                                                       Map of the Available Science.’’ Food and           [Docket Number USCG–2018–0296]
                                                                                                                                                                listed in the regulation is either the first
                                                       Chemical Toxicology, 98(Pt B):269–81,                                                                    or second Saturday or Sunday of May,
                                                                                                          RIN 1625–AA08                                         or the second or third Saturday and
                                                       2016.
                                                  20. Peterson, M., ‘‘What is a de minimis                                                                      Sunday of September. This year, the
                                                       Risk?’’ Risk Management: An
                                                                                                          Special Local Regulation; North                       Ocean City Grand Prix is being held on
                                                       International Journal, 4(2):47–55, 2002.           Atlantic Ocean, Ocean City, MD                        June 23, 2018, and June 24, 2018. The
                                                  21. Castorina, R. and T.J. Woodruff,                    AGENCY:   Coast Guard, DHS.                           high-speed power boat racing consist of
                                                       ‘‘Assessment of Potential Risk Levels                                                                    approximately 40 participating offshore
                                                       Associated with U.S. Environmental                 ACTION:   Notice of proposed rulemaking.
                                                                                                                                                                race boats of various classes, 21 to 50
                                                       Protection Agency Reference Values,’’                                                                    feet in length, operating along a
                                                                                                          SUMMARY:   The Coast Guard is proposing
                                                       Environmental Health Perspectives,                                                                       designated, marked racetrack-type
                                                       111(10):1318–25, 2003.
                                                                                                          to establish special local regulations for
                                                                                                          certain waters of the North Atlantic                  course located in the North Atlantic
                                                  22. Rosner, B., Fundamentals of Biostatistics,
                                                                                                          Ocean. This action is necessary to                    Ocean, at Ocean City, MD. Details of the
                                                       Duxbury Press, Belmont, CA, 2010.
                                                  23. Brandt, E.J., R. Myerson, M.C. Perraillon,          provide for the safety of life on these               proposed event were provided to the
                                                       and T.S. Polonsky, ‘‘Hospital                      navigable waters located at Ocean City,               Coast Guard on March 12, 2018.
                                                       Admissions for Myocardial Infarction               Worcester County, MD, during a high-                  Hazards from the power boat racing
                                                       and Stroke Before and After the Trans-             speed power boat racing event on June                 event include participants operating
                                                       Fatty Acid Restrictions in New York,’’             23, 2018, and June 24, 2018. This                     near a designated navigation channel, as
                                                       JAMA Cardiology, 2(6):627–634, 2017.               proposed rulemaking would prohibit                    well as injury to persons and damage to
                                                  24. Restrepo, B.J. and M. Rieger, ‘‘Trans Fat           persons and vessels from being in the                 property that involve vessel mishaps
                                                       and Cardiovascular Disease Mortality:              regulated area unless authorized by the               during high-speed power boat races
                                                       Evidence from Bans in Restaurants in                                                                     conducted on navigable waters located
                                                                                                          Captain of the Port Maryland-National
                                                       New York,’’ Journal of Health                                                                            near the shoreline. The Captain of the
                                                       Economics, 45:176–96, 2016.                        Capital Region or Coast Guard Patrol
                                                                                                          Commander. We invite your comments                    Port (COTP) Maryland-National Capital
                                                  25. Restrepo, B.J., ‘‘Further Decline of Trans                                                                Region has determined that potential
                                                       Fatty Acids Levels Among US Adults                 on this proposed rulemaking.
                                                                                                                                                                hazards associated with the power boat
                                                       Between 1999–2000 and 2009–2010,’’                 DATES: Comments and related material
                                                       American Journal of Public Health,
                                                                                                                                                                races would be a safety concern for
                                                                                                          must be received by the Coast Guard on                anyone intending to operate within
                                                       107(1):156–8, 2017.                                or before June 20, 2018.
                                                  26. Vesper, H.W., S.P. Caudill, H.C. Kuiper,                                                                  certain waters of the North Atlantic
                                                                                                          ADDRESSES: You may submit comments                    Ocean at Ocean City, MD.
                                                       et al., ‘‘Plasma Trans-Fatty Acid
                                                       Concentrations in Fasting Adults                   identified by docket number USCG–                        The purpose of this rulemaking is to
                                                       Declined from NHANES 1999–2000 to                  2018–0296 using the Federal                           protect event participants, spectators
                                                       2009–2010,’’ American Journal of                   eRulemaking Portal at http://                         and transiting vessels on certain waters
                                                       Clinical Nutrition, 105(5):1063–9, 2017.           www.regulations.gov. See the ‘‘Public                 of North Atlantic Ocean before, during,
                                                  27. Yang, Q., Z. Zhang, F. Loustalot, et al.,           Participation and Request for                         and after the scheduled event. The Coast
                                                       ‘‘Plasma Trans-Fatty Acid                          Comments’’ portion of the                             Guard proposes this rulemaking under
                                                       Concentrations Continue to be                      SUPPLEMENTARY INFORMATION section for                 authority in 33 U.S.C. 1233, which
                                                       Associated with Serum Lipid and                    further instructions on submitting                    authorize the Coast Guard to establish
                                                       Lipoprotein Concentrations Among US                comments.                                             and define special local regulations.
                                                       adults After Reductions in Trans-Fatty
                                                       Acid Intake,’’ Journal of Nutrition,               FOR FURTHER INFORMATION CONTACT:   If                 III. Discussion of Proposed Rule
                                                       147(5):896–907, 2017.                              you have questions about this proposed
                                                                                                                                                                   The COTP Maryland-National Capital
                                                  28. Zhang, Z., C. Gillespie, Q. Yang, ‘‘Plasma          rulemaking, call or email Mr. Ronald
                                                                                                                                                                Region is proposing to establish special
                                                       Trans-Fatty Acid Concentrations                    Houck, U.S. Coast Guard Sector
                                                       Continue to be Associated with                                                                           local regulations that will be enforced
                                                                                                          Maryland-National Capital Region;                     from 9:30 a.m. to 5:30 p.m. on June 23,
                                                       Metabolic Syndrome Among US Adults                 telephone 410–576–2674, email
                                                       After Reductions in Trans-Fatty Acid                                                                     2018 and from 9:30 a.m. to 5:30 p.m. on
                                                                                                          Ronald.L.Houck@uscg.mil.                              June 24, 2018. The regulated area is a
                                                       Intake,’’ Nutrition Research, 43:51–9,
                                                       2017.                                              SUPPLEMENTARY INFORMATION:                            polygon in shape measuring
                                                  29. Mensink, R.P., ‘‘Effects of Saturated Fatty         I. Table of Abbreviations                             approximately 4,500 yards in length by
                                                       Acids on Serum Lipids and                                                                                1,600 yards in width. The area would
                                                       Lipoproteins: A Systematic Review and              CFR Code of Federal Regulations                       cover all navigable waters of the North
                                                       Regression Analysis,’’ Geneva: World               DHS Department of Homeland Security                   Atlantic Ocean, within an area bounded
                                                       Health Organization, 2016.                         FR Federal Register
                                                                                                          NPRM Notice of proposed rulemaking
                                                                                                                                                                by the following coordinates:
                                                  30. Letter from the American Bakers                                                                           Commencing at a point near the
                                                       Association, et al., to Dr. Scott Gottlieb,        Pub. L. Public Law
                                                                                                                                                                shoreline at latitude 38°21′42″ N,
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                                                       Commissioner, Food and Drug                        § Section
                                                       Administration (April 30, 2018) (sent by           U.S.C. United States Code                             longitude 075°04′11″ W, thence east to
                                                       electronic mail).                                                                                        latitude 38°21′33″ N, longitude
                                                                                                          II. Background, Purpose, and Legal                    075°03′10″ W, thence southwest to
                                                    Dated: May 15, 2018.                                  Basis                                                 latitude 38°19′25″ N, longitude
                                                  Leslie Kux,                                               On January 30, 2018, the Offshore                   075°04′02″ W, thence west to the
                                                  Associate Commissioner for Policy.                      Powerboat Association of Brick                        shoreline at latitude 38°19′35″ N,
                                                  [FR Doc. 2018–10715 Filed 5–18–18; 8:45 am]             Township, NJ, notified the Coast Guard                longitude 075°05′02″ W, at Ocean City,
                                                  BILLING CODE 4164–01–P                                  through submission of a marine event                  MD.


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Document Created: 2018-11-02 11:07:41
Document Modified: 2018-11-02 11:07:41
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotification; denial of petition.
DatesThis document is applicable May 21, 2018. Submit either electronic or written objections and requests for a hearing on the document by June 20, 2018. Late, untimely objections will not be considered. See section VIII for further information on the filing of objections.
ContactEllen Anderson, Center for Food Safety and Applied Nutrition (HFS-265), Food and Drug Administration, 5001 Campus Dr., College Park, MD 20740-3835, 240-402-1309.
FR Citation83 FR 23382 

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