81_FR_79155 81 FR 78937 - Di-n-butyl Adipate; Exemption From the Requirement of a Tolerance

81 FR 78937 - Di-n-butyl Adipate; Exemption From the Requirement of a Tolerance

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 81, Issue 218 (November 10, 2016)

Page Range78937-78941
FR Document2016-27209

This regulation establishes an exemption from the requirement of a tolerance for residues of di-n-butyl adipate (CAS Reg. No. 105-99- 7) when used as an inert ingredient (plasticizer) at a concentration of not more than 25% by weight in pesticide formulations intended for varroa mite control around bee hives. Bayer Healthcare, LLC submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting establishment of an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of di-n-butyl adipate.

Federal Register, Volume 81 Issue 218 (Thursday, November 10, 2016)
[Federal Register Volume 81, Number 218 (Thursday, November 10, 2016)]
[Rules and Regulations]
[Pages 78937-78941]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-27209]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2015-0631; FRL-9954-58]


Di-n-butyl Adipate; Exemption From the Requirement of a Tolerance

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This regulation establishes an exemption from the requirement 
of a tolerance for residues of di-n-butyl adipate (CAS Reg. No. 105-99-
7) when used as an inert ingredient (plasticizer) at a concentration of 
not more than 25% by weight in pesticide formulations intended for 
varroa mite control around bee hives. Bayer Healthcare, LLC submitted a 
petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), 
requesting establishment of an exemption from the requirement of a 
tolerance. This regulation eliminates the need to establish a maximum 
permissible level for residues of di-n-butyl adipate.

DATES: This regulation is effective November 10, 2016. Objections and 
requests for hearings must be received on or before January 9, 2017, 
and must be filed in accordance with the instructions provided in 40 
CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).

ADDRESSES: The docket for this action, identified by docket 
identification (ID) number EPA-HQ-OPP-2015-0631, is available at http://www.regulations.gov or at the Office of Pesticide Programs Regulatory 
Public Docket (OPP Docket) in the Environmental Protection Agency 
Docket Center (EPA/DC), West William Jefferson Clinton Bldg., Rm. 3334, 
1301 Constitution Ave. NW., Washington, DC 20460-0001. The Public 
Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through 
Friday, excluding legal holidays. The telephone number for the Public 
Reading Room is (202) 566-1744, and the telephone number for the OPP 
Docket is (703) 305-5805. Please review the visitor instructions and 
additional information about the docket available at http://www.epa.gov/dockets.

FOR FURTHER INFORMATION CONTACT: Michael Goodis, Registration Division 
(7505P), Office of Pesticide Programs, Environmental Protection Agency, 
1200 Pennsylvania Ave. NW., Washington, DC 20460-0001; main telephone 
number: (703) 305-7090; email address: [email protected].

SUPPLEMENTARY INFORMATION: 

I. General Information

A. Does this action apply to me?

    You may be potentially affected by this action if you are an 
agricultural producer, food manufacturer, or pesticide manufacturer. 
The following list of North American Industrial Classification System 
(NAICS) codes is not intended to be exhaustive, but rather provides a 
guide to help readers determine whether this document applies to them. 
Potentially affected entities may include:
     Crop production (NAICS code 111).
     Animal production (NAICS code 112).
     Food manufacturing (NAICS code 311).
     Pesticide manufacturing (NAICS code 32532).

B. How can I get electronic access to other related information?

    You may access a frequently updated electronic version of 40 CFR 
part 180 through the Government Printing Office's e-CFR site at http://www.ecfr.gov/cgi-bin/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl.

C. How can I file an objection or hearing request?

    Under FFDCA section 408(g), 21 U.S.C. 346a, any person may file an 
objection to any aspect of this regulation and may also request a 
hearing on those objections. You must file your objection or request a 
hearing on this regulation in accordance with the instructions provided 
in 40 CFR part 178. To ensure proper receipt by EPA, you must identify 
docket ID number EPA-HQ-OPP-2015-0631 in the subject line on the first 
page of your submission. All objections and requests for a hearing must 
be in writing, and must be received by the Hearing Clerk on or before 
January 9, 2017. Addresses for mail and hand delivery of objections and 
hearing requests are provided in 40 CFR 178.25(b).
    In addition to filing an objection or hearing request with the 
Hearing Clerk as described in 40 CFR part 178, please submit a copy of 
the filing (excluding any Confidential Business Information (CBI)) for 
inclusion in the public docket. Information not marked confidential 
pursuant to 40 CFR part 2 may be disclosed publicly by EPA without 
prior notice. Submit the non-CBI copy of your objection or hearing 
request, identified by docket ID number EPA-HQ-OPP-2015-0631, by one of 
the following methods:
     Federal eRulemaking Portal: http://www.regulations.gov. 
Follow the online instructions for submitting comments. Do not submit 
electronically any information you consider to be CBI or other 
information whose disclosure is restricted by statute.
     Mail: OPP Docket, Environmental Protection Agency Docket 
Center (EPA/DC), (28221T), 1200 Pennsylvania Ave. NW., Washington, DC 
20460-0001.
     Hand Delivery: To make special arrangements for hand 
delivery or delivery of boxed information, please follow the 
instructions at http://www.epa.gov/dockets/contacts.html.
    Additional instructions on commenting or visiting the docket, along 
with more information about dockets generally, is available at http://www.epa.gov/dockets.

II. Petition for Exemption

    In the Federal Register of October 21, 2015 (80 FR 63731) (FRL-
9935-29), EPA issued a document pursuant to FFDCA section 408, 21 
U.S.C. 346a, announcing the filing of a pesticide petition (PP IN-
10838) by Bayer Healthcare, LLC, Animal Health Division, P.O. Box 390 
Shawnee Mission, KS 66201. The petition requested that 40 CFR 180.910 
be amended by establishing an exemption from the requirement of a 
tolerance for residues of di-n-butyl adipate, (CAS Reg. No. 105-99-7) 
when used as an inert ingredient (plasticizer) intended for varroa mite 
control around bee hives. That document referenced a summary of the 
petition prepared by Bayer Healthcare, LLC, the petitioner, which is 
available in the docket, http://www.regulations.gov. There were no 
comments received in response to the notice of filing.

III. Inert Ingredient Definition

    Inert ingredients are all ingredients that are not active 
ingredients as defined in 40 CFR 153.125 and include, but are not 
limited to, the following types of ingredients (except when they have a 
pesticidal efficacy of their own): Solvents such as alcohols and

[[Page 78938]]

hydrocarbons; surfactants such as polyoxyethylene polymers and fatty 
acids; carriers such as clay and diatomaceous earth; thickeners such as 
carrageenan and modified cellulose; wetting, spreading, and dispersing 
agents; propellants in aerosol dispensers; microencapsulating agents; 
and emulsifiers. The term ``inert'' is not intended to imply 
nontoxicity; the ingredient may or may not be chemically active. 
Generally, EPA has exempted inert ingredients from the requirement of a 
tolerance based on the low toxicity of the individual inert 
ingredients.

IV. Aggregate Risk Assessment and Determination of Safety

    Section 408(c)(2)(A)(i) of FFDCA allows EPA to establish an 
exemption from the requirement for a tolerance (the legal limit for a 
pesticide chemical residue in or on a food) only if EPA determines that 
the exemption is ``safe.'' Section 408(c)(2)(A)(ii) of FFDCA defines 
``safe'' to mean that ``there is a reasonable certainty that no harm 
will result from aggregate exposure to the pesticide chemical residue, 
including all anticipated dietary exposures and all other exposures for 
which there is reliable information.'' This includes exposure through 
drinking water and in residential settings, but does not include 
occupational exposure. Section 408(b)(2)(C) of FFDCA requires EPA to 
give special consideration to exposure of infants and children to the 
pesticide chemical residue and to ``ensure that there is a reasonable 
certainty that no harm will result to infants and children from 
aggregate exposure to the pesticide chemical residue. . . .''
    EPA establishes exemptions from the requirement of a tolerance only 
in those cases where it can be clearly demonstrated that aggregate 
exposure to pesticide chemical residues under reasonably foreseeable 
circumstances will pose no appreciable risks to human health. In order 
to determine the risks from aggregate exposure to pesticide inert 
ingredients, the Agency considers the toxicity of the inert in 
conjunction with possible exposure to residues of the inert ingredient 
through food, drinking water, and through other exposures that occur as 
a result of pesticide use in residential settings. If EPA is able to 
determine that a finite tolerance is not necessary to ensure that there 
is a reasonable certainty that no harm will result from aggregate 
exposure to the inert ingredient, an exemption from the requirement of 
a tolerance may be established.
    Consistent with FFDCA section 408(c)(2)(A), and the factors 
specified in FFDCA section 408(c)(2)(B), EPA has reviewed the available 
scientific data and other relevant information in support of this 
action. EPA has sufficient data to assess the hazards of and to make a 
determination on aggregate exposure for di-n-butyl adipate including 
exposure resulting from the exemption established by this action. EPA's 
assessment of exposures and risks associated with di-n-butyl adipate 
follows.

A. Toxicological Profile

    EPA has evaluated the available toxicity data and considered their 
validity, completeness, and reliability as well as the relationship of 
the results of the studies to human risk. EPA has also considered 
available information concerning the variability of the sensitivities 
of major identifiable subgroups of consumers, including infants and 
children. Specific information on the studies received and the nature 
of the adverse effects caused by di-n-butyl adipate as well as the no-
observed-adverse-effect level (NOAEL) and the lowest-observed-adverse-
effect level (LOAEL) from the toxicity studies are discussed in this 
unit.
    Di-n-butyl adipate is of low acute oral toxicity, with an oral 
lethal dose (LD)50 in rats of 1.52 gram/kilogram (g/kg) body 
weight. An 8-hour inhalation exposure to air saturated with di-n-butyl 
adipate caused no deaths in a group of 6 albino rats. Di-n-butyl 
adipate as not acutely toxic to rabbits by the dermal route, with a 
dermal LD50 of 19.24 g/kg. Non-standard dermal irritation 
studies suggest that di-n-butyl adipate is a dermal irritant. Eye 
irritation studies in rabbits indicated minor eye irritation with 
recovery in a few days. Di-n-butyl adipate is not a dermal sensitizer 
in guinea pigs.
    In two separate Ames Assays, no mutations were induced in any 
bacterial strain at any concentration of di-n-butyl adipate with or 
without metabolic activation. A chromosomal aberration assay was 
conducted on di-n-butyl adipate using cultured Chinese Hamster lung 
(CHL/IU) cells. Details of the study were not reported, but structural 
chromosome aberrations were reported in this study with metabolic 
activation. In an in vivo micronucleus assay, no cytotoxic effects were 
identified in the bone marrow cells, and there was no significant 
increase in the number of cells with micronuclei at any dose or time 
after dosing.
    In a reproduction and developmental toxicity study, male and female 
rats received di-n-butyl adipate at oral doses of 0, 100, 300 and 1,000 
milligram/kilogram/day (mg/kg/day). There was no effect of di-n-butyl 
adipate exposure on any of the reproductive parameters measured. Pup 
body weight in the 1,000 mg/kg/day group was slightly reduced compared 
to controls at birth and on postnatal day 4. The study no-observable-
adverse-effect level (NOAEL) for general toxicity in the parental 
generation of 300 mg/kg/day is based on the increase in kidney weights 
in males and females at 1,000 mg/kg/day. The NOAEL for reproduction in 
male and female rats was 1,000 mg/kg. The NOAEL for the F1 
generation (offspring toxicity) was 300 mg/kg/day.
    The potential effects of repeated oral exposure to di-n-butyl 
adipate were evaluated in Sprague-Dawley rats in a 28-day toxicity 
test. Male and female rats received gavage doses of di-n-butyl adipate 
of 0, 20, 140, or 1000 mg/kg/day. No test substance-related changes 
were seen in any of the monitored endpoints. The NOAEL in both males 
and females was 1,000 mg/kg/day.
    The results of the OncoLogic Quantitative Structure Activity 
Relationship (QSAR) model has not identified any concerns for 
carcinogenicity relating to di-n-butyl adipate.

B. Toxicological Points of Departure/Levels of Concern

    Once a pesticide's toxicological profile is determined, EPA 
identifies toxicological points of departure (POD) and levels of 
concern to use in evaluating the risk posed by human exposure to the 
pesticide. For hazards that have a threshold below which there is no 
appreciable risk, the toxicological POD is used as the basis for 
derivation of reference values for risk assessment. PODs are developed 
based on a careful analysis of the doses in each toxicological study to 
determine the dose at which no adverse effects are observed (the NOAEL) 
and the lowest dose at which adverse effects of concern are identified 
(the LOAEL). Uncertainty/safety factors are used in conjunction with 
the POD to calculate a safe exposure level--generally referred to as a 
population-adjusted dose (PAD) or a reference dose (RfD)--and a safe 
margin of exposure (MOE). For non-threshold risks, the Agency assumes 
that any amount of exposure will lead to some degree of risk. Thus, the 
Agency estimates risk in terms of the probability of an occurrence of 
the adverse effect expected in a lifetime. For more information on the 
general principles EPA uses in risk characterization and a complete 
description of the risk assessment process, see http://www.epa.gov/pesticides/factsheets/riskassess.htm.

[[Page 78939]]

    No acute toxicological endpoint of concern has been identified for 
di-n-butyl adipate. On the basis of the reproduction study (OECD 
Preliminary Reproduction Test), the NOAEL for di-n-butyl adipate was 
300 mg/kg/day for offspring toxicity based on decreased in pup body 
weights seen at the LOAEL of 1,000 mg/kg/day was selected for risk 
assessment. The available toxicology data support that an Food Quality 
Protection Act safety factor (FQPA SF) of 3X for di-n-butyl adipate 
should be retained to account for uncertainties associated with 
subchronic to chronic extrapolation. Therefore, the chronic population 
adjusted dose (cPAD) is 1 mg/kg/day based upon a NOAEL of 300 mg/kg/day 
and the use of 10X factors for intra- and inter-species variability and 
an FQPA SF of 3X.

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to di-n-butyl adipate, EPA considered exposure under the 
proposed exemption from the requirement of a tolerance. EPA assessed 
dietary exposures from di-n-butyl adipate in food as follows:
    Acute and chronic dietary assessments take into account exposure 
estimates from dietary consumption of food and drinking water. The 
Agency assessed the dietary exposures to di-n-butyl adipate as an inert 
ingredient at no more than 25% in the plastic of strips containing 
pesticides that are placed at the entrance to bee hives.
    No adverse effects attributable to a single exposure to di-n-butyl 
adipate were seen in the toxicity databases; therefore, an acute 
dietary risk assessment is not appropriate.
    In conducting the chronic dietary exposure assessment to di-n-butyl 
adipate the Dietary Exposure Evaluation Model/Food Commodity Intake 
Database (DEEM-FCID)TM, Version 3.16 was used. EPA used food 
consumption information from the U.S. Department of Agriculture's 
National Health and Nutrition Examination Survey, What We Eat in 
America, (NHANES/WWEIA). This dietary survey was conducted from 2003 to 
2008. As to residue levels in food, no residue data were submitted for 
di-n-butyl adipate. In the absence of specific residue data, EPA has 
developed an approach that uses surrogate information to derive upper 
bound exposure estimates for the subject inert ingredient. Upper bound 
exposure estimates are based on the highest tolerance for a given 
commodity from a list of high-use insecticides, herbicides, and 
fungicides. A complete description of the general approach taken to 
assess inert ingredient risks in the absence of residue data is 
contained in the memorandum entitled ``Alkyl Amines Polyalkoxylates 
(Cluster 4): Acute and Chronic Aggregate (Food and Drinking Water) 
Dietary Exposure and Risk Assessments for the Inerts.'' (D361707, S. 
Piper, 2/25/09) and can be found at http://www.regulations.gov in 
docket ID number EPA-HQ-OPP-2008-0738. Adjustments were made to the 
DEEM model estimates for oral exposure from the use of di-n-butyl 
adipate to account for the use of not more than 25% di-n-butyl adipate 
in strips containing pesticides that are placed at the entrance to bee 
hives (for honey and including exposure through drinking water).
    The Agency has not identified any concerns for carcinogenicity 
relating to di-n-butyl adipate; therefore, a cancer dietary exposure 
assessment was not performed.
    2. Dietary exposure from drinking water. For the purpose of the 
screening level dietary risk assessment to support this request for an 
exemption from the requirement of a tolerance for di-n-butyl adipate, a 
conservative drinking water concentration value of 100 parts per 
billion (ppb) based on screening level modeling was used to assess the 
contribution to drinking water for the chronic dietary risk assessments 
for parent compound. These values were directly entered into the 
dietary exposure model.
    3. From non-dietary exposure. The term ``residential exposure'' is 
used in this document to refer to non-occupational, non-dietary 
exposure (e.g., textiles (clothing and diapers), carpets, swimming 
pools, and hard surface disinfection on walls, floors, tables).
    Di-n-butyl adipate may be used in inert ingredients in products 
that are registered for specific uses that may result in residential 
exposure, such as pesticides used in and around the home. Based on the 
available data for products registered for residential use, the Agency 
SOPs concluded that products containing inert chemicals similar to di-
n-butyl adipate usually comprise no more than 2-5% of the inert 
ingredient in the final product. Therefore, the Agency conducted an 
assessment to represent conservative residential exposure by assessing 
di-n-butyl adipate in pesticide formulations (outdoor scenarios) and in 
disinfectant-type uses (indoor scenarios) at no more than 5% in the 
final formulation.
    4. Cumulative effects from substances with a common mechanism of 
toxicity. Section 408(b)(2)(D)(v) of FFDCA requires that, when 
considering whether to establish, modify, or revoke a tolerance or 
exemption from a tolerance, the Agency consider ``available 
information'' concerning the cumulative effects of a particular 
pesticide's residues and ``other substances that have a common 
mechanism of toxicity.''
    EPA has not found di-n-butyl adipate to share a common mechanism of 
toxicity with any other substances, and di-n-butyl adipate does not 
appear to produce a toxic metabolite produced by other substances. For 
the purposes of this tolerance action, therefore, EPA has assumed that 
di-n-butyl adipate does not have a common mechanism of toxicity with 
other substances. For information regarding EPA's efforts to determine 
which chemicals have a common mechanism of toxicity and to evaluate the 
cumulative effects of such chemicals, see EPA's Web site at http://www.epa.gov/pesticides/cumulative.

D. Safety Factor for Infants and Children

    1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA 
shall apply an additional tenfold (10X) margin of safety for infants 
and children in the case of threshold effects to account for prenatal 
and postnatal toxicity and the completeness of the database on toxicity 
and exposure unless EPA determines based on reliable data that a 
different margin of safety will be safe for infants and children. This 
additional margin of safety is commonly referred to as the FQPA SF. In 
applying this provision, EPA either retains the default value of 10X, 
or uses a different additional safety factor when reliable data 
available to EPA support the choice of a different factor.
    2. Prenatal and postnatal sensitivity. Considering the overall 
toxicity profile and the endpoints and doses selected for di-n-butyl 
adipate, the degree of concern for the effects observed in the di-n-
butyl adipate reproductive and developmental toxicity screening study 
is low, with a clear NOAEL for the offspring effects and regulatory 
doses selected to be protective of any observed effects. No other 
residual uncertainties were identified with respect to susceptibility.
    3. Conclusion. EPA has determined that reliable data show the 
safety of infants and children would be adequately protected if the 
FQPA SF were reduced to 3X. That decision is based on the following 
findings:
    i. The toxicity database for di-n-butyl adipate is adequate to 
assess the safety of this chemical. However, to account for potential 
adverse effects from chronic exposures, an FQPA SF of 3X is retained to 
account for the extrapolation

[[Page 78940]]

of adverse effects seen in subchronic toxicity studies to chronic 
exposure scenarios.
    ii. There is no indication that di-n-butyl adipate is a neurotoxic 
chemical and there is no need for a developmental neurotoxicity study 
or additional uncertainty factors (UFs) to account for neurotoxicity.
    iii. There is some indication that potential effects of di-n-butyl 
adipate results in increased susceptibility in young rats in the 2-
generation reproduction study but the concern is low due to the 
selected endpoints.
    iv. There are no residual uncertainties identified in the exposure 
databases. The dietary food exposure assessments were performed based 
on 100% CT and tolerance-level residues. EPA made conservative 
(protective) assumptions in the ground and surface water modeling used 
to assess exposure to di-n-butyl adipate in drinking water. EPA used 
similarly conservative assumptions to assess postapplication exposure 
of children as well as incidental oral exposure of toddlers. These 
assessments will not underestimate the exposure and risks posed by di-
n-butyl adipate.

E. Aggregate Risks and Determination of Safety

    Determination of safety section. EPA determines whether acute and 
chronic dietary pesticide exposures are safe by comparing aggregate 
exposure estimates to the acute PAD (aPAD) and chronic PAD (cPAD). For 
linear cancer risks, EPA calculates the lifetime probability of 
acquiring cancer given the estimated aggregate exposure. Short-, 
intermediate-, and chronic-term risks are evaluated by comparing the 
estimated aggregate food, water, and residential exposure to the 
appropriate PODs to ensure that an adequate MOE exists.
    1. Acute risk. An acute aggregate risk assessment takes into 
account acute exposure estimates from dietary consumption of food and 
drinking water. No adverse effect resulting from a single oral exposure 
was identified and no acute dietary endpoint was selected. Therefore, 
di-n-butyl adipate is not expected to pose an acute risk.
    2. Chronic risk. Using the exposure assumptions described in this 
unit for chronic exposure, EPA has concluded that chronic exposure to 
di-n-butyl adipate from food and water will utilize <1% of the cPAD for 
all population subgroups.
    3. Short- and intermediate-term risk. Short- and intermediate-term 
aggregate exposure takes into account short- and intermediate-term 
residential exposure plus chronic exposure to food and water 
(considered to be a background exposure level).
    A short- and intermediate-term adverse effect was identified from 
the chronic oral end-point. Although di-n-butyl adipate is not 
currently used as an inert ingredient in pesticide products that are 
registered for any use patterns that would result in short- or 
intermediate-term residential exposure, there is a possibility that di-
n-butyl adipate could be used in residential pesticide products that 
would result in short- or intermediate-term residential exposure. As a 
result, the Agency has determined that it is appropriate to aggregate 
chronic exposure through food and water with short- and intermediate-
term residential exposures to di-n-butyl adipate.
    Using the exposure assumptions described above, EPA has concluded 
that the combined chronic food and water, and short- and intermediate-
term residential exposures result in aggregate MOEs of 1700 for adult 
males and females. Adult residential exposure combines liquids/trigger 
sprayer/home garden use with a high end post application dermal 
exposure from contact with treated lawns. As the level of concern is 
for MOEs that are lower than 100, this MOE is not of concern. EPA has 
concluded the combined short- and intermediate-term aggregated food, 
water, and residential exposures result in an aggregate MOE of 3200 for 
children. Children's residential exposure includes total exposures 
associated with contact with treated surfaces (dermal and hand-to-mouth 
exposures). As the level of concern is for MOEs that are lower than 
100, this MOE is not of concern.
    4. Aggregate cancer risk for U.S. population. Results of a 
predictive Quantitative Structure Activity Relationship (QSAR) model 
using the OncoLogicTM Model (EPA, 2013b, version 8.0) 
indicate no evidence for carcinogenicity of di-n-butyl adipate. Based 
on the lack of evidence of carcinogenicity in the toxicity database and 
the model results, di-n-butyl adipate not expected to pose a cancer 
risk to humans.
    5. Determination of safety. Based on these risk assessments, EPA 
concludes that there is a reasonable certainty that no harm will result 
to the general population, or to infants and children from aggregate 
exposure to di-n-butyl adipate residues.

V. Other Considerations

A. Analytical Enforcement Methodology

    Although EPA is establishing a limitation on the amount of di-n-
butyl adipate that may be used in pesticide formulations, an analytical 
enforcement methodology is not necessary for this exemption from the 
requirement of tolerance. The limitation will be enforced through the 
pesticide registration process under the Federal Insecticide, 
Fungicide, and Rodenticide Act (FIFRA), 7 U.S.C. 136 et seq. EPA will 
not register any pesticide for sale or distribution for use on growing 
crops or raw agricultural commodities after harvest with concentrations 
of di-n-butyl adipate exceeding 25% by weight of the formulation.

B. Revisions to Petitioned-for Tolerances

    Although not indicated the petitioner's notice of filing (NOF), the 
proposed concentration of di-n-butyl adipate indicated is not to exceed 
a maximum of 25%.

VI. Conclusions

    Therefore, an exemption from the requirement of a tolerance is 
established under 40 CFR 180.910 for di-n-butyl adipate (CAS Reg. No. 
105-99-7) when used at no more than 25% by weight in pesticide 
formulation for varroa mite control around bee hives.

VII. Statutory and Executive Order Reviews

    This action establishes an exemption from the requirement of a 
tolerance under FFDCA section 408(d) in response to a petition 
submitted to the Agency. The Office of Management and Budget (OMB) has 
exempted these types of actions from review under Executive Order 
12866, entitled ``Regulatory Planning and Review'' (58 FR 51735, 
October 4, 1993). Because this action has been exempted from review 
under Executive Order 12866, this action is not subject to Executive 
Order 13211, entitled ``Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution, or Use'' (66 FR 
28355, May 22, 2001) or Executive Order 13045, entitled ``Protection of 
Children from Environmental Health Risks and Safety Risks'' (62 FR 
19885, April 23, 1997). This action does not contain any information 
collections subject to OMB approval under the Paperwork Reduction Act 
(PRA) (44 U.S.C. 3501 et seq.), nor does it require any special 
considerations under Executive Order 12898, entitled ``Federal Actions 
to Address Environmental Justice in Minority Populations and Low-Income 
Populations'' (59 FR 7629, February 16, 1994).
    Since tolerances and exemptions that are established on the basis 
of a petition under FFDCA section 408(d), such as

[[Page 78941]]

the exemption in this final rule, do not require the issuance of a 
proposed rule, the requirements of the Regulatory Flexibility Act (RFA) 
(5 U.S.C. 601 et seq.), do not apply.
    This action directly regulates growers, food processors, food 
handlers, and food retailers, not States or tribes, nor does this 
action alter the relationships or distribution of power and 
responsibilities established by Congress in the preemption provisions 
of FFDCA section 408(n)(4). As such, the Agency has determined that 
this action will not have a substantial direct effect on States or 
tribal governments, on the relationship between the national government 
and the States or tribal governments, or on the distribution of power 
and responsibilities among the various levels of government or between 
the Federal Government and Indian tribes. Thus, the Agency has 
determined that Executive Order 13132, entitled ``Federalism'' (64 FR 
43255, August 10, 1999) and Executive Order 13175, entitled 
``Consultation and Coordination with Indian Tribal Governments'' (65 FR 
67249, November 9, 2000) do not apply to this action. In addition, this 
action does not impose any enforceable duty or contain any unfunded 
mandate as described under Title II of the Unfunded Mandates Reform Act 
(UMRA) (2 U.S.C. 1501 et seq.).
    This action does not involve any technical standards that would 
require Agency consideration of voluntary consensus standards pursuant 
to section 12(d) of the National Technology Transfer and Advancement 
Act (NTTAA) (15 U.S.C. 272 note).

VIII. Congressional Review Act

    Pursuant to the Congressional Review Act (5 U.S.C. 801 et seq.), 
EPA will submit a report containing this rule and other required 
information to the U.S. Senate, the U.S. House of Representatives, and 
the Comptroller General of the United States prior to publication of 
the rule in the Federal Register. This action is not a ``major rule'' 
as defined by 5 U.S.C. 804(2).
    List of Subjects in 40 CFR Part 180

    Environmental protection, Administrative practice and procedure, 
Agricultural commodities, Pesticides and pests, Reporting and 
recordkeeping requirements.

    Dated: October 28, 2016.
Rachel C. Holloman,
Acting Director, Registration Division, Office of Pesticide Programs.

    Therefore, 40 CFR chapter I is amended as follows:

PART 180--[AMENDED]

0
1. The authority citation for part 180 continues to read as follows:

    Authority:  21 U.S.C. 321(q), 346a and 371.

0
2. In Sec.  180.910, add alphabetically the inert ingredient to the 
table to read as follows:


Sec.  180.910   Inert ingredients used pre- and post-harvest; 
exemptions from the requirement of a tolerance.

* * * * *

------------------------------------------------------------------------
       Inert ingredients              Limits                Uses
------------------------------------------------------------------------
 
                              * * * * * * *
di-n-Butyl adipate (CAS Reg.    Not to exceed 25%  Plasticizer in
 No. 105-99-7).                  by weight of       pesticide
                                 pesticide          formulations for
                                 formulation.       varroa mite control
                                                    around bee hives
 
------------------------------------------------------------------------
                              * * * * * * *
------------------------------------------------------------------------

[FR Doc. 2016-27209 Filed 11-9-16; 8:45 am]
 BILLING CODE 6560-50-P



                                                                   Federal Register / Vol. 81, No. 218 / Thursday, November 10, 2016 / Rules and Regulations                                             78937

                                                                                                Parts per     Public Reading Room is (202) 566–1744,                     In addition to filing an objection or
                                                              Commodity                          million      and the telephone number for the OPP                     hearing request with the Hearing Clerk
                                                                                                              Docket is (703) 305–5805. Please review                  as described in 40 CFR part 178, please
                                                                                                              the visitor instructions and additional                  submit a copy of the filing (excluding
                                                     *           *          *               *            *                                                             any Confidential Business Information
                                                                                                              information about the docket available
                                                  Corn, field, forage .................                  8.0
                                                                                                              at http://www.epa.gov/dockets.                           (CBI)) for inclusion in the public docket.
                                                     *         *        *                   *            *    FOR FURTHER INFORMATION CONTACT:                         Information not marked confidential
                                                  Cotton, gin byproducts .........                       3.0  Michael Goodis, Registration Division                    pursuant to 40 CFR part 2 may be
                                                  Cottonseed subgroup 20C ...                            0.50 (7505P), Office of Pesticide Programs,                   disclosed publicly by EPA without prior
                                                                                                              Environmental Protection Agency, 1200                    notice. Submit the non-CBI copy of your
                                                      *            *           *            *            *                                                             objection or hearing request, identified
                                                                                                              Pennsylvania Ave. NW., Washington,
                                                                                                              DC 20460–0001; main telephone                            by docket ID number EPA–HQ–OPP–
                                                  *       *      *         *       *                                                                                   2015–0631, by one of the following
                                                                                                              number: (703) 305–7090; email address:
                                                  [FR Doc. 2016–27204 Filed 11–9–16; 8:45 am]                 RDFRNotices@epa.gov.                                     methods:
                                                  BILLING CODE 6560–50–P                                                                                                 • Federal eRulemaking Portal: http://
                                                                                                              SUPPLEMENTARY INFORMATION:
                                                                                                                                                                       www.regulations.gov. Follow the online
                                                                                                                 I. General Information                                instructions for submitting comments.
                                                  ENVIRONMENTAL PROTECTION                                                                                             Do not submit electronically any
                                                                                                                 A. Does this action apply to me?
                                                  AGENCY                                                                                                               information you consider to be CBI or
                                                                                                                    You may be potentially affected by                 other information whose disclosure is
                                                  40 CFR Part 180                                                this action if you are an agricultural                restricted by statute.
                                                  [EPA–HQ–OPP–2015–0631; FRL–9954–58]                            producer, food manufacturer, or                         • Mail: OPP Docket, Environmental
                                                                                                                 pesticide manufacturer. The following                 Protection Agency Docket Center (EPA/
                                                  Di-n-butyl Adipate; Exemption From                             list of North American Industrial                     DC), (28221T), 1200 Pennsylvania Ave.
                                                  the Requirement of a Tolerance                                 Classification System (NAICS) codes is                NW., Washington, DC 20460–0001.
                                                                                                                 not intended to be exhaustive, but rather               • Hand Delivery: To make special
                                                  AGENCY:  Environmental Protection                              provides a guide to help readers                      arrangements for hand delivery or
                                                  Agency (EPA).                                                  determine whether this document                       delivery of boxed information, please
                                                  ACTION: Final rule.                                            applies to them. Potentially affected                 follow the instructions at http://
                                                  SUMMARY:   This regulation establishes an                      entities may include:                                 www.epa.gov/dockets/contacts.html.
                                                  exemption from the requirement of a                               • Crop production (NAICS code 111).                  Additional instructions on
                                                  tolerance for residues of di-n-butyl                              • Animal production (NAICS code                    commenting or visiting the docket,
                                                  adipate (CAS Reg. No. 105–99–7) when                           112).                                                 along with more information about
                                                  used as an inert ingredient (plasticizer)                         • Food manufacturing (NAICS code                   dockets generally, is available at http://
                                                  at a concentration of not more than 25%                        311).                                                 www.epa.gov/dockets.
                                                                                                                    • Pesticide manufacturing (NAICS
                                                  by weight in pesticide formulations                                                                                  II. Petition for Exemption
                                                                                                                 code 32532).
                                                  intended for varroa mite control around
                                                                                                                                                                          In the Federal Register of October 21,
                                                  bee hives. Bayer Healthcare, LLC                               B. How can I get electronic access to                 2015 (80 FR 63731) (FRL–9935–29),
                                                  submitted a petition to EPA under the                          other related information?                            EPA issued a document pursuant to
                                                  Federal Food, Drug, and Cosmetic Act                             You may access a frequently updated                 FFDCA section 408, 21 U.S.C. 346a,
                                                  (FFDCA), requesting establishment of an                        electronic version of 40 CFR part 180                 announcing the filing of a pesticide
                                                  exemption from the requirement of a                            through the Government Printing                       petition (PP IN–10838) by Bayer
                                                  tolerance. This regulation eliminates the                      Office’s e-CFR site at http://                        Healthcare, LLC, Animal Health
                                                  need to establish a maximum                                    www.ecfr.gov/cgi-bin/text-                            Division, P.O. Box 390 Shawnee
                                                  permissible level for residues of di-n-                        idx?&c=ecfr&tpl=/ecfrbrowse/Title40/                  Mission, KS 66201. The petition
                                                  butyl adipate.                                                 40tab_02.tpl.                                         requested that 40 CFR 180.910 be
                                                  DATES: This regulation is effective                                                                                  amended by establishing an exemption
                                                  November 10, 2016. Objections and                              C. How can I file an objection or hearing
                                                                                                                 request?                                              from the requirement of a tolerance for
                                                  requests for hearings must be received                                                                               residues of di-n-butyl adipate, (CAS
                                                  on or before January 9, 2017, and must                           Under FFDCA section 408(g), 21                      Reg. No. 105–99–7) when used as an
                                                  be filed in accordance with the                                U.S.C. 346a, any person may file an                   inert ingredient (plasticizer) intended
                                                  instructions provided in 40 CFR part                           objection to any aspect of this regulation            for varroa mite control around bee
                                                  178 (see also Unit I.C. of the                                 and may also request a hearing on those               hives. That document referenced a
                                                  SUPPLEMENTARY INFORMATION).                                    objections. You must file your objection              summary of the petition prepared by
                                                  ADDRESSES: The docket for this action,                         or request a hearing on this regulation               Bayer Healthcare, LLC, the petitioner,
                                                  identified by docket identification (ID)                       in accordance with the instructions                   which is available in the docket, http://
                                                  number EPA–HQ–OPP–2015–0631, is                                provided in 40 CFR part 178. To ensure                www.regulations.gov. There were no
                                                  available at http://www.regulations.gov                        proper receipt by EPA, you must                       comments received in response to the
                                                  or at the Office of Pesticide Programs                         identify docket ID number EPA–HQ–                     notice of filing.
                                                  Regulatory Public Docket (OPP Docket)                          OPP–2015–0631 in the subject line on
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                  in the Environmental Protection Agency                         the first page of your submission. All                III. Inert Ingredient Definition
                                                  Docket Center (EPA/DC), West William                           objections and requests for a hearing                    Inert ingredients are all ingredients
                                                  Jefferson Clinton Bldg., Rm. 3334, 1301                        must be in writing, and must be                       that are not active ingredients as defined
                                                  Constitution Ave. NW., Washington, DC                          received by the Hearing Clerk on or                   in 40 CFR 153.125 and include, but are
                                                  20460–0001. The Public Reading Room                            before January 9, 2017. Addresses for                 not limited to, the following types of
                                                  is open from 8:30 a.m. to 4:30 p.m.,                           mail and hand delivery of objections                  ingredients (except when they have a
                                                  Monday through Friday, excluding legal                         and hearing requests are provided in 40               pesticidal efficacy of their own):
                                                  holidays. The telephone number for the                         CFR 178.25(b).                                        Solvents such as alcohols and


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                                                  78938            Federal Register / Vol. 81, No. 218 / Thursday, November 10, 2016 / Rules and Regulations

                                                  hydrocarbons; surfactants such as                        FFDCA section 408(c)(2)(B), EPA has                   effect of di-n-butyl adipate exposure on
                                                  polyoxyethylene polymers and fatty                       reviewed the available scientific data                any of the reproductive parameters
                                                  acids; carriers such as clay and                         and other relevant information in                     measured. Pup body weight in the 1,000
                                                  diatomaceous earth; thickeners such as                   support of this action. EPA has                       mg/kg/day group was slightly reduced
                                                  carrageenan and modified cellulose;                      sufficient data to assess the hazards of              compared to controls at birth and on
                                                  wetting, spreading, and dispersing                       and to make a determination on                        postnatal day 4. The study no-
                                                  agents; propellants in aerosol                           aggregate exposure for di-n-butyl                     observable-adverse-effect level (NOAEL)
                                                  dispensers; microencapsulating agents;                   adipate including exposure resulting                  for general toxicity in the parental
                                                  and emulsifiers. The term ‘‘inert’’ is not               from the exemption established by this                generation of 300 mg/kg/day is based on
                                                  intended to imply nontoxicity; the                       action. EPA’s assessment of exposures                 the increase in kidney weights in males
                                                  ingredient may or may not be                             and risks associated with di-n-butyl                  and females at 1,000 mg/kg/day. The
                                                  chemically active. Generally, EPA has                    adipate follows.                                      NOAEL for reproduction in male and
                                                  exempted inert ingredients from the                                                                            female rats was 1,000 mg/kg. The
                                                                                                           A. Toxicological Profile
                                                  requirement of a tolerance based on the                                                                        NOAEL for the F1 generation (offspring
                                                  low toxicity of the individual inert                        EPA has evaluated the available                    toxicity) was 300 mg/kg/day.
                                                  ingredients.                                             toxicity data and considered their                       The potential effects of repeated oral
                                                                                                           validity, completeness, and reliability as            exposure to di-n-butyl adipate were
                                                  IV. Aggregate Risk Assessment and                        well as the relationship of the results of            evaluated in Sprague-Dawley rats in a
                                                  Determination of Safety                                  the studies to human risk. EPA has also               28-day toxicity test. Male and female
                                                     Section 408(c)(2)(A)(i) of FFDCA                      considered available information                      rats received gavage doses of di-n-butyl
                                                  allows EPA to establish an exemption                     concerning the variability of the                     adipate of 0, 20, 140, or 1000 mg/kg/
                                                  from the requirement for a tolerance (the                sensitivities of major identifiable                   day. No test substance-related changes
                                                  legal limit for a pesticide chemical                     subgroups of consumers, including                     were seen in any of the monitored
                                                  residue in or on a food) only if EPA                     infants and children. Specific                        endpoints. The NOAEL in both males
                                                  determines that the exemption is ‘‘safe.’’               information on the studies received and               and females was 1,000 mg/kg/day.
                                                  Section 408(c)(2)(A)(ii) of FFDCA                        the nature of the adverse effects caused                 The results of the OncoLogic
                                                  defines ‘‘safe’’ to mean that ‘‘there is a               by di-n-butyl adipate as well as the no-              Quantitative Structure Activity
                                                  reasonable certainty that no harm will                   observed-adverse-effect level (NOAEL)                 Relationship (QSAR) model has not
                                                  result from aggregate exposure to the                    and the lowest-observed-adverse-effect                identified any concerns for
                                                  pesticide chemical residue, including                    level (LOAEL) from the toxicity studies               carcinogenicity relating to di-n-butyl
                                                  all anticipated dietary exposures and all                are discussed in this unit.                           adipate.
                                                  other exposures for which there is                          Di-n-butyl adipate is of low acute oral
                                                                                                           toxicity, with an oral lethal dose (LD)50             B. Toxicological Points of Departure/
                                                  reliable information.’’ This includes
                                                                                                           in rats of 1.52 gram/kilogram (g/kg)                  Levels of Concern
                                                  exposure through drinking water and in
                                                  residential settings, but does not include               body weight. An 8-hour inhalation                        Once a pesticide’s toxicological
                                                  occupational exposure. Section                           exposure to air saturated with di-n-butyl             profile is determined, EPA identifies
                                                  408(b)(2)(C) of FFDCA requires EPA to                    adipate caused no deaths in a group of                toxicological points of departure (POD)
                                                  give special consideration to exposure                   6 albino rats. Di-n-butyl adipate as not              and levels of concern to use in
                                                  of infants and children to the pesticide                 acutely toxic to rabbits by the dermal                evaluating the risk posed by human
                                                  chemical residue and to ‘‘ensure that                    route, with a dermal LD50 of 19.24 g/kg.              exposure to the pesticide. For hazards
                                                  there is a reasonable certainty that no                  Non-standard dermal irritation studies                that have a threshold below which there
                                                  harm will result to infants and children                 suggest that di-n-butyl adipate is a                  is no appreciable risk, the toxicological
                                                  from aggregate exposure to the pesticide                 dermal irritant. Eye irritation studies in            POD is used as the basis for derivation
                                                  chemical residue. . . .’’                                rabbits indicated minor eye irritation                of reference values for risk assessment.
                                                     EPA establishes exemptions from the                   with recovery in a few days. Di-n-butyl               PODs are developed based on a careful
                                                  requirement of a tolerance only in those                 adipate is not a dermal sensitizer in                 analysis of the doses in each
                                                  cases where it can be clearly                            guinea pigs.                                          toxicological study to determine the
                                                  demonstrated that aggregate exposure to                     In two separate Ames Assays, no                    dose at which no adverse effects are
                                                  pesticide chemical residues under                        mutations were induced in any bacterial               observed (the NOAEL) and the lowest
                                                  reasonably foreseeable circumstances                     strain at any concentration of di-n-butyl             dose at which adverse effects of concern
                                                  will pose no appreciable risks to human                  adipate with or without metabolic                     are identified (the LOAEL). Uncertainty/
                                                  health. In order to determine the risks                  activation. A chromosomal aberration                  safety factors are used in conjunction
                                                  from aggregate exposure to pesticide                     assay was conducted on di-n-butyl                     with the POD to calculate a safe
                                                  inert ingredients, the Agency considers                  adipate using cultured Chinese Hamster                exposure level—generally referred to as
                                                  the toxicity of the inert in conjunction                 lung (CHL/IU) cells. Details of the study             a population-adjusted dose (PAD) or a
                                                  with possible exposure to residues of                    were not reported, but structural                     reference dose (RfD)—and a safe margin
                                                  the inert ingredient through food,                       chromosome aberrations were reported                  of exposure (MOE). For non-threshold
                                                  drinking water, and through other                        in this study with metabolic activation.              risks, the Agency assumes that any
                                                  exposures that occur as a result of                      In an in vivo micronucleus assay, no                  amount of exposure will lead to some
                                                  pesticide use in residential settings. If                cytotoxic effects were identified in the              degree of risk. Thus, the Agency
                                                  EPA is able to determine that a finite                   bone marrow cells, and there was no                   estimates risk in terms of the probability
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                                                  tolerance is not necessary to ensure that                significant increase in the number of                 of an occurrence of the adverse effect
                                                  there is a reasonable certainty that no                  cells with micronuclei at any dose or                 expected in a lifetime. For more
                                                  harm will result from aggregate                          time after dosing.                                    information on the general principles
                                                  exposure to the inert ingredient, an                        In a reproduction and developmental                EPA uses in risk characterization and a
                                                  exemption from the requirement of a                      toxicity study, male and female rats                  complete description of the risk
                                                  tolerance may be established.                            received di-n-butyl adipate at oral doses             assessment process, see http://
                                                     Consistent with FFDCA section                         of 0, 100, 300 and 1,000 milligram/                   www.epa.gov/pesticides/factsheets/
                                                  408(c)(2)(A), and the factors specified in               kilogram/day (mg/kg/day). There was no                riskassess.htm.


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                                                                   Federal Register / Vol. 81, No. 218 / Thursday, November 10, 2016 / Rules and Regulations                                       78939

                                                    No acute toxicological endpoint of                     taken to assess inert ingredient risks in             to establish, modify, or revoke a
                                                  concern has been identified for di-n-                    the absence of residue data is contained              tolerance or exemption from a tolerance,
                                                  butyl adipate. On the basis of the                       in the memorandum entitled ‘‘Alkyl                    the Agency consider ‘‘available
                                                  reproduction study (OECD Preliminary                     Amines Polyalkoxylates (Cluster 4):                   information’’ concerning the cumulative
                                                  Reproduction Test), the NOAEL for di-                    Acute and Chronic Aggregate (Food and                 effects of a particular pesticide’s
                                                  n-butyl adipate was 300 mg/kg/day for                    Drinking Water) Dietary Exposure and                  residues and ‘‘other substances that
                                                  offspring toxicity based on decreased in                 Risk Assessments for the Inerts.’’                    have a common mechanism of toxicity.’’
                                                  pup body weights seen at the LOAEL of                    (D361707, S. Piper, 2/25/09) and can be                  EPA has not found di-n-butyl adipate
                                                  1,000 mg/kg/day was selected for risk                    found at http://www.regulations.gov in                to share a common mechanism of
                                                  assessment. The available toxicology                     docket ID number EPA–HQ–OPP–2008–                     toxicity with any other substances, and
                                                  data support that an Food Quality                        0738. Adjustments were made to the                    di-n-butyl adipate does not appear to
                                                  Protection Act safety factor (FQPA SF)                   DEEM model estimates for oral exposure                produce a toxic metabolite produced by
                                                  of 3X for di-n-butyl adipate should be                   from the use of di-n-butyl adipate to                 other substances. For the purposes of
                                                  retained to account for uncertainties                    account for the use of not more than                  this tolerance action, therefore, EPA has
                                                  associated with subchronic to chronic                    25% di-n-butyl adipate in strips                      assumed that di-n-butyl adipate does
                                                  extrapolation. Therefore, the chronic                    containing pesticides that are placed at              not have a common mechanism of
                                                  population adjusted dose (cPAD) is 1                     the entrance to bee hives (for honey and              toxicity with other substances. For
                                                  mg/kg/day based upon a NOAEL of 300                      including exposure through drinking                   information regarding EPA’s efforts to
                                                  mg/kg/day and the use of 10X factors for                 water).                                               determine which chemicals have a
                                                  intra- and inter-species variability and                    The Agency has not identified any                  common mechanism of toxicity and to
                                                  an FQPA SF of 3X.                                        concerns for carcinogenicity relating to              evaluate the cumulative effects of such
                                                                                                           di-n-butyl adipate; therefore, a cancer               chemicals, see EPA’s Web site at http://
                                                  C. Exposure Assessment                                   dietary exposure assessment was not                   www.epa.gov/pesticides/cumulative.
                                                     1. Dietary exposure from food and                     performed.
                                                  feed uses. In evaluating dietary                            2. Dietary exposure from drinking                  D. Safety Factor for Infants and
                                                  exposure to di-n-butyl adipate, EPA                      water. For the purpose of the screening               Children
                                                  considered exposure under the                            level dietary risk assessment to support                 1. In general. Section 408(b)(2)(C) of
                                                  proposed exemption from the                              this request for an exemption from the                FFDCA provides that EPA shall apply
                                                  requirement of a tolerance. EPA                          requirement of a tolerance for di-n-butyl             an additional tenfold (10X) margin of
                                                  assessed dietary exposures from di-n-                    adipate, a conservative drinking water                safety for infants and children in the
                                                  butyl adipate in food as follows:                        concentration value of 100 parts per                  case of threshold effects to account for
                                                     Acute and chronic dietary                             billion (ppb) based on screening level                prenatal and postnatal toxicity and the
                                                  assessments take into account exposure                   modeling was used to assess the                       completeness of the database on toxicity
                                                  estimates from dietary consumption of                    contribution to drinking water for the                and exposure unless EPA determines
                                                  food and drinking water. The Agency                      chronic dietary risk assessments for                  based on reliable data that a different
                                                  assessed the dietary exposures to di-n-                  parent compound. These values were                    margin of safety will be safe for infants
                                                  butyl adipate as an inert ingredient at no               directly entered into the dietary                     and children. This additional margin of
                                                  more than 25% in the plastic of strips                   exposure model.                                       safety is commonly referred to as the
                                                  containing pesticides that are placed at                    3. From non-dietary exposure. The                  FQPA SF. In applying this provision,
                                                  the entrance to bee hives.                               term ‘‘residential exposure’’ is used in              EPA either retains the default value of
                                                     No adverse effects attributable to a                  this document to refer to non-                        10X, or uses a different additional safety
                                                  single exposure to di-n-butyl adipate                    occupational, non-dietary exposure                    factor when reliable data available to
                                                  were seen in the toxicity databases;                     (e.g., textiles (clothing and diapers),               EPA support the choice of a different
                                                  therefore, an acute dietary risk                         carpets, swimming pools, and hard                     factor.
                                                  assessment is not appropriate.                           surface disinfection on walls, floors,                   2. Prenatal and postnatal sensitivity.
                                                     In conducting the chronic dietary                     tables).                                              Considering the overall toxicity profile
                                                  exposure assessment to di-n-butyl                           Di-n-butyl adipate may be used in                  and the endpoints and doses selected
                                                  adipate the Dietary Exposure Evaluation                  inert ingredients in products that are                for di-n-butyl adipate, the degree of
                                                  Model/Food Commodity Intake                              registered for specific uses that may                 concern for the effects observed in the
                                                  Database (DEEM–FCID)TM, Version                          result in residential exposure, such as               di-n-butyl adipate reproductive and
                                                  3.16 was used. EPA used food                             pesticides used in and around the home.               developmental toxicity screening study
                                                  consumption information from the U.S.                    Based on the available data for products              is low, with a clear NOAEL for the
                                                  Department of Agriculture’s National                     registered for residential use, the                   offspring effects and regulatory doses
                                                  Health and Nutrition Examination                         Agency SOPs concluded that products                   selected to be protective of any observed
                                                  Survey, What We Eat in America,                          containing inert chemicals similar to di-             effects. No other residual uncertainties
                                                  (NHANES/WWEIA). This dietary survey                      n-butyl adipate usually comprise no                   were identified with respect to
                                                  was conducted from 2003 to 2008. As to                   more than 2–5% of the inert ingredient                susceptibility.
                                                  residue levels in food, no residue data                  in the final product. Therefore, the                     3. Conclusion. EPA has determined
                                                  were submitted for di-n-butyl adipate.                   Agency conducted an assessment to                     that reliable data show the safety of
                                                  In the absence of specific residue data,                 represent conservative residential                    infants and children would be
                                                  EPA has developed an approach that                       exposure by assessing di-n-butyl adipate              adequately protected if the FQPA SF
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                  uses surrogate information to derive                     in pesticide formulations (outdoor                    were reduced to 3X. That decision is
                                                  upper bound exposure estimates for the                   scenarios) and in disinfectant-type uses              based on the following findings:
                                                  subject inert ingredient. Upper bound                    (indoor scenarios) at no more than 5%                    i. The toxicity database for di-n-butyl
                                                  exposure estimates are based on the                      in the final formulation.                             adipate is adequate to assess the safety
                                                  highest tolerance for a given commodity                     4. Cumulative effects from substances              of this chemical. However, to account
                                                  from a list of high-use insecticides,                    with a common mechanism of toxicity.                  for potential adverse effects from
                                                  herbicides, and fungicides. A complete                   Section 408(b)(2)(D)(v) of FFDCA                      chronic exposures, an FQPA SF of 3X is
                                                  description of the general approach                      requires that, when considering whether               retained to account for the extrapolation


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                                                  78940            Federal Register / Vol. 81, No. 218 / Thursday, November 10, 2016 / Rules and Regulations

                                                  of adverse effects seen in subchronic                    (considered to be a background                        adipate that may be used in pesticide
                                                  toxicity studies to chronic exposure                     exposure level).                                      formulations, an analytical enforcement
                                                  scenarios.                                                  A short- and intermediate-term                     methodology is not necessary for this
                                                     ii. There is no indication that di-n-                 adverse effect was identified from the                exemption from the requirement of
                                                  butyl adipate is a neurotoxic chemical                   chronic oral end-point. Although di-n-                tolerance. The limitation will be
                                                  and there is no need for a                               butyl adipate is not currently used as an             enforced through the pesticide
                                                  developmental neurotoxicity study or                     inert ingredient in pesticide products                registration process under the Federal
                                                  additional uncertainty factors (UFs) to                  that are registered for any use patterns              Insecticide, Fungicide, and Rodenticide
                                                  account for neurotoxicity.                               that would result in short- or                        Act (FIFRA), 7 U.S.C. 136 et seq. EPA
                                                     iii. There is some indication that                    intermediate-term residential exposure,               will not register any pesticide for sale or
                                                  potential effects of di-n-butyl adipate                  there is a possibility that di-n-butyl                distribution for use on growing crops or
                                                  results in increased susceptibility in                   adipate could be used in residential                  raw agricultural commodities after
                                                  young rats in the 2-generation                           pesticide products that would result in               harvest with concentrations of di-n-
                                                  reproduction study but the concern is                    short- or intermediate-term residential               butyl adipate exceeding 25% by weight
                                                  low due to the selected endpoints.                       exposure. As a result, the Agency has                 of the formulation.
                                                     iv. There are no residual uncertainties               determined that it is appropriate to
                                                  identified in the exposure databases.                                                                          B. Revisions to Petitioned-for Tolerances
                                                                                                           aggregate chronic exposure through food
                                                  The dietary food exposure assessments                    and water with short- and intermediate-                 Although not indicated the
                                                  were performed based on 100% CT and                      term residential exposures to di-n-butyl              petitioner’s notice of filing (NOF), the
                                                  tolerance-level residues. EPA made                       adipate.                                              proposed concentration of di-n-butyl
                                                  conservative (protective) assumptions in                    Using the exposure assumptions                     adipate indicated is not to exceed a
                                                  the ground and surface water modeling                    described above, EPA has concluded                    maximum of 25%.
                                                  used to assess exposure to di-n-butyl                    that the combined chronic food and                    VI. Conclusions
                                                  adipate in drinking water. EPA used                      water, and short- and intermediate-term
                                                  similarly conservative assumptions to                    residential exposures result in aggregate               Therefore, an exemption from the
                                                  assess postapplication exposure of                       MOEs of 1700 for adult males and                      requirement of a tolerance is established
                                                  children as well as incidental oral                      females. Adult residential exposure                   under 40 CFR 180.910 for di-n-butyl
                                                  exposure of toddlers. These assessments                  combines liquids/trigger sprayer/home                 adipate (CAS Reg. No. 105–99–7) when
                                                  will not underestimate the exposure and                  garden use with a high end post                       used at no more than 25% by weight in
                                                  risks posed by di-n-butyl adipate.                       application dermal exposure from                      pesticide formulation for varroa mite
                                                                                                           contact with treated lawns. As the level              control around bee hives.
                                                  E. Aggregate Risks and Determination of
                                                  Safety                                                   of concern is for MOEs that are lower                 VII. Statutory and Executive Order
                                                                                                           than 100, this MOE is not of concern.                 Reviews
                                                     Determination of safety section. EPA
                                                                                                           EPA has concluded the combined short-                    This action establishes an exemption
                                                  determines whether acute and chronic
                                                                                                           and intermediate-term aggregated food,                from the requirement of a tolerance
                                                  dietary pesticide exposures are safe by
                                                                                                           water, and residential exposures result               under FFDCA section 408(d) in
                                                  comparing aggregate exposure estimates
                                                                                                           in an aggregate MOE of 3200 for                       response to a petition submitted to the
                                                  to the acute PAD (aPAD) and chronic
                                                                                                           children. Children’s residential                      Agency. The Office of Management and
                                                  PAD (cPAD). For linear cancer risks,
                                                                                                           exposure includes total exposures                     Budget (OMB) has exempted these types
                                                  EPA calculates the lifetime probability
                                                                                                           associated with contact with treated                  of actions from review under Executive
                                                  of acquiring cancer given the estimated
                                                                                                           surfaces (dermal and hand-to-mouth                    Order 12866, entitled ‘‘Regulatory
                                                  aggregate exposure. Short-,
                                                                                                           exposures). As the level of concern is for            Planning and Review’’ (58 FR 51735,
                                                  intermediate-, and chronic-term risks
                                                                                                           MOEs that are lower than 100, this MOE                October 4, 1993). Because this action
                                                  are evaluated by comparing the
                                                                                                           is not of concern.                                    has been exempted from review under
                                                  estimated aggregate food, water, and                        4. Aggregate cancer risk for U.S.
                                                  residential exposure to the appropriate                                                                        Executive Order 12866, this action is
                                                                                                           population. Results of a predictive                   not subject to Executive Order 13211,
                                                  PODs to ensure that an adequate MOE                      Quantitative Structure Activity
                                                  exists.                                                                                                        entitled ‘‘Actions Concerning
                                                                                                           Relationship (QSAR) model using the                   Regulations That Significantly Affect
                                                     1. Acute risk. An acute aggregate risk
                                                                                                           OncoLogicTM Model (EPA, 2013b,                        Energy Supply, Distribution, or Use’’ (66
                                                  assessment takes into account acute
                                                                                                           version 8.0) indicate no evidence for                 FR 28355, May 22, 2001) or Executive
                                                  exposure estimates from dietary
                                                                                                           carcinogenicity of di-n-butyl adipate.                Order 13045, entitled ‘‘Protection of
                                                  consumption of food and drinking
                                                                                                           Based on the lack of evidence of                      Children from Environmental Health
                                                  water. No adverse effect resulting from
                                                                                                           carcinogenicity in the toxicity database              Risks and Safety Risks’’ (62 FR 19885,
                                                  a single oral exposure was identified
                                                                                                           and the model results, di-n-butyl                     April 23, 1997). This action does not
                                                  and no acute dietary endpoint was
                                                                                                           adipate not expected to pose a cancer                 contain any information collections
                                                  selected. Therefore, di-n-butyl adipate is
                                                                                                           risk to humans.                                       subject to OMB approval under the
                                                  not expected to pose an acute risk.
                                                     2. Chronic risk. Using the exposure                      5. Determination of safety. Based on               Paperwork Reduction Act (PRA) (44
                                                  assumptions described in this unit for                   these risk assessments, EPA concludes                 U.S.C. 3501 et seq.), nor does it require
                                                  chronic exposure, EPA has concluded                      that there is a reasonable certainty that             any special considerations under
                                                  that chronic exposure to di-n-butyl                      no harm will result to the general                    Executive Order 12898, entitled
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                                                  adipate from food and water will utilize                 population, or to infants and children                ‘‘Federal Actions to Address
                                                  <1% of the cPAD for all population                       from aggregate exposure to di-n-butyl                 Environmental Justice in Minority
                                                  subgroups.                                               adipate residues.                                     Populations and Low-Income
                                                     3. Short- and intermediate-term risk.                 V. Other Considerations                               Populations’’ (59 FR 7629, February 16,
                                                  Short- and intermediate-term aggregate                                                                         1994).
                                                  exposure takes into account short- and                   A. Analytical Enforcement Methodology                    Since tolerances and exemptions that
                                                  intermediate-term residential exposure                     Although EPA is establishing a                      are established on the basis of a petition
                                                  plus chronic exposure to food and water                  limitation on the amount of di-n-butyl                under FFDCA section 408(d), such as


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                                                                   Federal Register / Vol. 81, No. 218 / Thursday, November 10, 2016 / Rules and Regulations                                               78941

                                                  the exemption in this final rule, do not                 with Indian Tribal Governments’’ (65 FR                  List of Subjects in 40 CFR Part 180
                                                  require the issuance of a proposed rule,                 67249, November 9, 2000) do not apply                    Environmental protection,
                                                  the requirements of the Regulatory                       to this action. In addition, this action               Administrative practice and procedure,
                                                  Flexibility Act (RFA) (5 U.S.C. 601 et                   does not impose any enforceable duty or                Agricultural commodities, Pesticides
                                                  seq.), do not apply.                                     contain any unfunded mandate as                        and pests, Reporting and recordkeeping
                                                     This action directly regulates growers,               described under Title II of the Unfunded               requirements.
                                                  food processors, food handlers, and food                 Mandates Reform Act (UMRA) (2 U.S.C.
                                                  retailers, not States or tribes, nor does                1501 et seq.).                                            Dated: October 28, 2016.
                                                  this action alter the relationships or                     This action does not involve any                     Rachel C. Holloman,
                                                  distribution of power and                                technical standards that would require                 Acting Director, Registration Division, Office
                                                  responsibilities established by Congress                 Agency consideration of voluntary                      of Pesticide Programs.
                                                  in the preemption provisions of FFDCA                    consensus standards pursuant to section                  Therefore, 40 CFR chapter I is
                                                  section 408(n)(4). As such, the Agency                   12(d) of the National Technology                       amended as follows:
                                                  has determined that this action will not                 Transfer and Advancement Act
                                                  have a substantial direct effect on States               (NTTAA) (15 U.S.C. 272 note).                          PART 180—[AMENDED]
                                                  or tribal governments, on the
                                                  relationship between the national                        VIII. Congressional Review Act                         ■ 1. The authority citation for part 180
                                                  government and the States or tribal                        Pursuant to the Congressional Review                 continues to read as follows:
                                                  governments, or on the distribution of                   Act (5 U.S.C. 801 et seq.), EPA will                       Authority: 21 U.S.C. 321(q), 346a and 371.
                                                  power and responsibilities among the                     submit a report containing this rule and               ■ 2. In § 180.910, add alphabetically the
                                                  various levels of government or between                  other required information to the U.S.                 inert ingredient to the table to read as
                                                  the Federal Government and Indian                        Senate, the U.S. House of                              follows:
                                                  tribes. Thus, the Agency has determined                  Representatives, and the Comptroller
                                                  that Executive Order 13132, entitled                     General of the United States prior to                  § 180.910 Inert ingredients used pre- and
                                                  ‘‘Federalism’’ (64 FR 43255, August 10,                  publication of the rule in the Federal                 post-harvest; exemptions from the
                                                  1999) and Executive Order 13175,                         Register. This action is not a ‘‘major                 requirement of a tolerance.
                                                  entitled ‘‘Consultation and Coordination                 rule’’ as defined by 5 U.S.C. 804(2).                  *        *       *        *   *

                                                            Inert ingredients                                    Limits                                                         Uses


                                                            *                 *                             *              *                     *                     *                    *
                                                  di-n-Butyl adipate (CAS Reg. No.            Not to exceed 25% by weight of Plasticizer in pesticide formulations for varroa mite control around bee
                                                     105–99–7).                                 pesticide formulation.         hives


                                                            *                        *                       *                       *                       *                          *              *



                                                  [FR Doc. 2016–27209 Filed 11–9–16; 8:45 am]              subzone of the eastern zone of the Gulf                Gulf of Mexico and South Atlantic
                                                  BILLING CODE 6560–50–P                                   of Mexico (Gulf) exclusive economic                    Fishery Management Councils and is
                                                                                                           zone (EEZ) through this temporary rule.                implemented by NMFS under the
                                                                                                           NMFS has determined that the                           authority of the Magnuson-Stevens
                                                  DEPARTMENT OF COMMERCE                                   commercial quota for king mackerel in                  Fishery Conservation and Management
                                                                                                           the eastern zone, Florida west coast                   Act (Magnuson-Stevens Act) by
                                                  National Oceanic and Atmospheric                         northern subzone of the Gulf EEZ will                  regulations at 50 CFR part 622.
                                                  Administration                                           be reached by November 10, 2016.                          The Gulf migratory group of king
                                                                                                           Therefore, NMFS closes the Florida                     mackerel is divided into western and
                                                  50 CFR Part 622                                          west coast northern subzone to                         eastern zones. The Gulf’s eastern zone
                                                  [Docket No. 101206604–1758–02]
                                                                                                           commercial fishing for king mackerel on                for king mackerel is further divided into
                                                                                                           November 10, 2016, to protect the Gulf                 the Florida west coast northern and
                                                  RIN 0648–XF017                                           king mackerel resource.                                southern subzones that have separate
                                                                                                           DATES: The closure is effective at noon,               commercial quotas. The Florida west
                                                  Coastal Migratory Pelagic Resources                                                                             coast northern subzone is that part of
                                                  of the Gulf of Mexico and Atlantic                       local time, November 10, 2016, until
                                                                                                           12:01 a.m., local time, on October 1,                  the Gulf EEZ between 26°19.8′ N. lat., a
                                                  Region; 2016–2017 Commercial                                                                                    line extending directly west from the
                                                  Accountability Measures and Closure                      2017.
                                                                                                                                                                  boundary between Lee and Collier
                                                  for King Mackerel in the Florida West                    FOR FURTHER INFORMATION CONTACT:                       Counties, Florida, and 87°31.1′ W. long.,
                                                  Coast Northern Subzone                                   Susan Gerhart, NMFS Southeast                          a line extending directly south from the
                                                  AGENCY:  National Marine Fisheries                       Regional Office, telephone: 727–824–                   state boundary of Alabama and Florida.
                                                  Service (NMFS), National Oceanic and                     5305, email: susan.gerhart@noaa.gov.                   The commercial quota for the Florida
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                                                  Atmospheric Administration (NOAA),                       SUPPLEMENTARY INFORMATION: The                         west coast northern subzone is 178,848
                                                  Commerce.                                                fishery for coastal migratory pelagic fish             lb (81,124 kg), round or gutted weight,
                                                  ACTION: Temporary rule; closure.                         includes king mackerel, Spanish                        as specified in 50 CFR
                                                                                                           mackerel, and cobia, and is managed                    622.384(b)(1)(i)(B)(2).
                                                  SUMMARY:   NMFS implements                               under the Fishery Management Plan for                     Regulations at 50 CFR 622.8(b) and 50
                                                  accountability measures (AMs) for                        Coastal Migratory Pelagic Resources in                 CFR 622.388(a)(1)(i) require NMFS to
                                                  commercially harvested king mackerel                     the Gulf of Mexico and Atlantic Region                 close the commercial sector for Gulf
                                                  in the Florida west coast northern                       (FMP). The FMP was prepared by the                     migratory group king mackerel in the


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Document Created: 2016-11-10 01:44:02
Document Modified: 2016-11-10 01:44:02
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis regulation is effective November 10, 2016. Objections and requests for hearings must be received on or before January 9, 2017, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).
ContactMichael Goodis, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460-0001; main telephone
FR Citation81 FR 78937 

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