83_FR_56188 83 FR 55970 - Tin Oxide; Exemption From the Requirement of a Tolerance

83 FR 55970 - Tin Oxide; Exemption From the Requirement of a Tolerance

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 83, Issue 218 (November 9, 2018)

Page Range55970-55974
FR Document2018-24585

This regulation establishes an exemption from the requirement of a tolerance for residues of tin oxide (CAS Reg. No. 18282-10-5) when used as an inert ingredient (seed treatment colorant) not to exceed 40% by weight in pesticide formulations applied to growing crops. Exponent on behalf of Aceto Corporation 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 tin oxide.

Federal Register, Volume 83 Issue 218 (Friday, November 9, 2018)
[Federal Register Volume 83, Number 218 (Friday, November 9, 2018)]
[Rules and Regulations]
[Pages 55970-55974]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-24585]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2017-0614; FRL-9982-73]


Tin Oxide; 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 tin oxide (CAS Reg. No. 18282-10-5) when 
used as an inert ingredient (seed treatment colorant) not to exceed 40% 
by weight in pesticide formulations applied to growing crops. Exponent 
on behalf of Aceto Corporation 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 tin oxide.

DATES: This regulation is effective November 9, 2018. Objections and 
requests for hearings must be received on or before January 8, 2019, 
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-2017-0614, 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 L. 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.

[[Page 55971]]

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-2017-0614 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 8, 2019. 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-2017-0614, 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 March 21, 2018 (83 FR 12311) (FRL-9974-
76), EPA issued a document pursuant to FFDCA section 408, 21 U.S.C. 
346a, announcing the filing of a pesticide petition (PP IN-11058) by 
Exponent (1150 Connecticut Ave. NW, Suite 1100, Washington, DC 20036), 
on behalf of Aceto Corporation (Aceto, 4 Tri Harbor Court, Port 
Washington, NY 11050). The petition requested that 40 CFR 180.920 be 
amended by establishing an exemption from the requirement of a 
tolerance for residues of tin oxide (CAS Reg. No. 18282-10-5) when used 
as an inert ingredient (seed treatment colorant) in pesticide 
formulations applied to growing crops not to exceed 40% by weight. That 
document referenced a summary of the petition prepared by Exponent on 
behalf of Aceto Corporation, the petitioner, which is available in the 
docket, http://www.regulations.gov. There were no timely 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 
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 tolerance is ``safe.'' Section 408(b)(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 in establishing a tolerance 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 the risks from 
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 tin oxide including exposure 
resulting from the exemption established by this action. EPA's 
assessment of exposures and risks associated with tin oxide 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 tin oxide 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.
    Although limited data are available on tin oxide, tin oxide belongs 
to the chemical class of water insoluble inorganic tins; therefore, the 
Agency used data available on inorganic tins, specifically tin (II) 
chloride (CAS Reg No. 21651-19-4) to fill data gaps.
    The acute oral toxicity of tin oxide is very low. The lethal dose, 
(LD)50>20,000 milligrams/kilograms (mg/kg) in rats

[[Page 55972]]

and mice. There is no eye irritation in Leghorn eggs nor in bovine 
cornea.
    The only repeated dose studies available with tin oxide are the 28-
day and 13-week oral toxicity studies in rats. No toxicity is observed 
in either study up to 1,000 and 500 mg/kg/day, respectively of tin 
oxide, the highest dose tested in both studies.
    Although developmental and reproduction toxicity studies are not 
available on tin oxide, evidence of potential developmental or 
reproduction toxicity is not observed in the available studies with tin 
oxide and no toxicity is seen up to 500 mg/kg/day, the highest dose 
tested. Available reproduction and developmental studies with tin (II) 
chloride that show no maternal, offspring or reproduction toxicity at 
40 mg/kg/day, the highest dose tested, in rats, although these studies 
are of limited value since the doses tested were not high enough to 
assess developmental and reproduction effects. Nevertheless, there is 
no concern for fetal susceptibility due to dietary exposure to tin 
oxide because it is insoluble and is not expected to be absorbed or 
cause systemic toxicity. Also, no toxicity is observed in reproduction 
organs at 500 and 1,000 mg/kg/day, the highest doses tested in the 13- 
and 4-week, respectively, oral toxicity studies in rats.
    Carcinogenicity studies with tin (II) chloride in rats and mice 
indicate that inorganic tins are not carcinogenic at 40 and 60 mg/kg/
day, respectively, the highest dose tested.
    In an in vitro mutagenicity assay, tin oxide caused micronuclei and 
karyorrhexis in lung macrophages. The toxicologic significance of this 
finding is equivocal.
    Neurotoxicity and immunotoxicity studies are not available for 
review. However, no evidence of neurotoxicity and immunotoxicity is 
observed in the submitted studies.
    The absorption of inorganic tin compounds from the gastrointestinal 
tract in humans and animals is very low with as much as 98% excreted 
directly in the feces. Because of their limited absorption, inorganic 
tin compounds have low systemic toxicity.

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.
    The 13-week oral toxicity study in rats is selected for the chronic 
dietary exposure scenario. No toxicity is observed up to 500 mg/kg/day, 
the highest dose tested. The lowest NOAEL in the database is found in 
the developmental and reproduction toxicity studies in the rat. In 
these studies, no treatment related adverse toxicity is observed at 800 
ppm (40 mg tin/kg/day), the highest dose tested in both studies. 
However, the developmental and reproduction toxicity studies are not 
considered appropriate for risk assessment since tested doses are not 
high enough to assess developmental and reproduction toxicity. 
Therefore, the 13-week toxicity study in rats treated with tin oxide is 
used for the chronic dietary exposure scenario. There is no concern for 
the lack of developmental and reproduction toxicity studies because tin 
oxide is an insoluble tin and is not expected to be absorbed or cause 
systemic toxicity. Further supporting the lack of toxicity, no systemic 
toxicity or adverse effects are observed up to 500 mg/kg/day, the 
highest dose tested, in the 13-week toxicity study in rats. Based on 
the weight of evidence, there is no concern for increased 
susceptibility and no additional uncertainty factor is necessary. The 
standard inter- and intra-species uncertainty factors of 10x are 
applied. Dermal and inhalation endpoints were not selected as tin oxide 
is not expected to be dermally absorbed because it is insoluble, and 
not expected to be absorbed in the lungs due to its particle size.

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to tin oxide, EPA considered exposure under the proposed 
exemption from the requirement of a tolerance. EPA assessed dietary 
exposures from tin oxide in food as follows:
    Dietary exposure (food and drinking water) to tin oxide can occur 
following ingestion of foods with residues from treated crops with 
pesticide formulations containing tin oxide. In addition, dietary 
exposure can occur from exposure to non-pesticidal sources of tin 
oxide. FDA has approved the use of tin oxide as a colorant in food-
contact articles at a maximum level of 1.1% by weight in colorants 
otherwise composed of mica and titanium dioxide, provided that the 
maximum loading rate for the colorant in the food-contact material does 
not exceed 3% by weight for polymers, 5% for paper and paperboard, 15% 
for coatings, or 30% for ink formulations. See Food and Drug 
Administration (FDA) threshold of regulation (TOR) exemption 98-004. It 
may be used, in combination with silicon dioxide and titanium dioxide, 
as a colorant for food-contact polymers, paper and paperboard, 
coatings, and in printing inks applied to non-food-contact surfaces of 
food-contact articles. The food contact substance will be used at a 
level not to exceed 6% of the total colorant weight. See FDA, Food 
Contact Notification (FCN) 000431. Tin oxide can also be used as a 
pigment for all polyolefins for food contact applications as long as 
the use level does not exceed 0.5% by weight of the polymer and is 
subject to certain limitations. See FDA, Food Contact Notification 
(FCN) 235.
    Because no adverse effects attributable to a single exposure of tin 
oxide are seen in the toxicity databases, an acute dietary risk 
assessment is not necessary. For the chronic dietary risk assessment, 
EPA used the Dietary Exposure Evaluation Model software with the Food 
Commodity Intake Database (DEEM-FCIDTM), Version 3.16, and 
food consumption information from the U.S. Department of Agriculture's 
(USDA's) 2003-2008 National Health and Nutrition Examination Survey, 
What We Eat in America (NHANES/WWEIA). As to residue levels in food, no 
residue data were submitted for tin oxide. In the absence of specific 
residue data, EPA utilized a highly conservative assumption that the 
residues on all commodities are 47 ppm based on the effective 
application rate of tin oxide when used as a colorant for seed 
treatment pesticide products and the presumption that all applied tin 
oxide

[[Page 55973]]

would be present in the edible portions of crops derived from treated 
seed. 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.
    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 tin oxide, 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).
    Tin oxide is not expected to be used as an inert ingredient in 
pesticide products that are registered for specific uses that may 
result in residential exposure, as the requested use is for commercial 
use only. However, tin oxide is present in cosmetics and personal care 
products. The typical reported concentration for tin oxide in cosmetics 
and personal care products ranges from 0.03 to 1.3%. Based on the 2013 
Cosmetic Ingredient Review (CIR) document, tin oxide is used in dusting 
powders (up to 0.03%), body and hand cosmetic sprays (up to 0.06%), and 
other fragrance preparations (up to 0.08%).
    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, 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 tin oxide to share a common mechanism of toxicity 
with any other substances, and tin oxide does not appear to produce a 
toxic metabolite produced by other substances. For the purposes of this 
tolerance action, therefore, EPA has assumed that tin oxide 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 website at http://www.epa.gov/pesticides/cumulative.

D. Safety Factor for Infants and Children

    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.
    The Agency has concluded that there is reliable data to determine 
that infants and children will be safe if the FQPA SF of 10x is reduced 
to 1X for the chronic dietary assessment for the following reasons. 
First, the toxicity database for tin oxide contains subchronic, 
carcinogenicity and mutagenicity studies. There is no indication of 
immunotoxicity or neurotoxicity in the available studies; therefore, 
there is no need to require an immunotoxicity or neurotoxicity study. 
Although no developmental and reproduction toxicity studies with tin 
oxide are available, there is no concern for fetal susceptibility 
because tin oxide is insoluble and is not expected to be absorbed or 
cause systemic toxicity. Further supporting the lack of toxicity, no 
adverse effects or systemic toxicity are observed up to 500 mg/kg/day, 
the highest dose tested, in the 13-week toxicity study in rats. Based 
on the weight of evidence, there is no concern for increased 
susceptibility and, the Agency has concluded that reducing the FQPA SF 
to 1X is appropriate.

E. Aggregate Risks and Determination of Safety

    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.
    2. Chronic risk. Using the exposure assumptions described in this 
unit for chronic exposure, EPA has concluded that chronic exposure to 
tin oxide from food and water will utilize 38.3% of the cPAD for 
children 1-2 years old, the population group receiving the greatest 
exposure. Based on the available data, oral exposure to tin oxide 
residues from non-pesticide uses is expected to be negligible compared 
to the conservative estimates of exposure resulting from the proposed 
use as a colorant for seed treatment pesticides, and not expected to 
significantly impact dietary exposure.
    3. Short- and intermediate-term risks. Short- and intermediate-term 
aggregate exposures take into account short- and intermediate-term 
residential exposures plus chronic exposure to food and water 
(considered to be a background exposure level).
    Tin oxide is not expected to be used as an inert ingredient in 
pesticide products that could result in short- and intermediate-term 
residential exposure as the request is strictly for commercial seed 
treatment use only, although tin oxide is currently approved for use in 
cosmetic, manufacturing applications.
    Dermal exposure to residues of tin oxide is not expected to result 
in systemic toxicity as tin oxide is insoluble and not absorbed through 
the skin. Inhalation exposure is possible due to its use in cosmetics 
and personal care products. However, as reported in the CIR 2013 on tin 
oxide, inhalation exposure to tin oxide particles are not expected as 
95-99% of the particles are >10 micrometers (um) and not expected to 
enter the lungs. Because of the lack of adverse effects from dermal or 
inhalation exposure, the Agency does not expect these residential 
exposures to pose risks of concern.
    4. Aggregate cancer risk for U.S. population. Based on the lack of 
evidence of carcinogenicity in two rodent carcinogenicity studies, tin 
oxide is not expected to pose a cancer risk to humans.

[[Page 55974]]

    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 tin oxide residues.

V. Other Considerations

A. Analytical Enforcement Methodology

    An analytical method is not required for enforcement purposes since 
the Agency is establishing an exemption from the requirement of a 
tolerance without any numerical limitation. The Agency ensures 
compliance with the limitation in the tolerance exemption through the 
registration of pesticides with formulations that satisfy the 
limitation under the Federal Insecticide, Fungicide, and Rodenticide 
Act (FIFRA).

VI. Conclusions

    Therefore, an exemption from the requirement of a tolerance is 
established under 40 CFR 180.920 for residues of tin oxide (CAS Reg. 
No. 18282-10-5) when used as an inert ingredient (colorant) in 
pesticide seed treatment formulations applied to growing crops not to 
exceed 40% by weight.

VII. Statutory and Executive Order Reviews

    This action establishes an exemption to the requirement for 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), nor is it considered a regulatory action under 
Executive Order 13771, entitled ``Reducing Regulations and Controlling 
Regulatory Costs'' (82 FR 9339, February 3, 2017). 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 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: November 1, 2018.
Michael L. Goodis,
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.  180.920, add alphabetically the inert ingredient ``Tin 
oxide (CAS Reg. No. 18282-10-5)'' to the table to read as follows:


Sec.  180.920  Inert ingredients used pre-harvest; exemptions from the 
requirement of a tolerance.

* * * * *

------------------------------------------------------------------------
      Inert ingredients              Limits                 Uses
------------------------------------------------------------------------
 
                              * * * * * * *
Tin oxide (CAS Reg. No.       Not to exceed 40% by  Colorant.
 18282-10-5).                  weight for use in
                               seed treatment
                               pesticide
                               formulations only.
 
                              * * * * * * *
------------------------------------------------------------------------

[FR Doc. 2018-24585 Filed 11-8-18; 8:45 am]
 BILLING CODE 6560-50-P



                                             55970             Federal Register / Vol. 83, No. 218 / Friday, November 9, 2018 / Rules and Regulations

                                             associated with fireworks displays and                  be enforced on the date and times listed              SUPPLEMENTARY INFORMATION:    The Coast
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                                             DATES: The regulation for the safety                    Guard; telephone 718–354–4197, email                  November 9, 2011 (76 FR 69614).
                                             zone described in 33 CFR 165.160 will                   ronald.j.sampert@uscg.mil.

                                                                                                                          TABLE 1
                                             1. Pyro Engineering Inc., Liberty Island Safety Zone, 33 CFR 165.160                 • Launch site: A barge located in approximate position 40°41′16.5″ N
                                               (2.1).                                                                               074°02′23″ W (NAD 1983), located in Federal Anchorage 20–C,
                                                                                                                                    about 360 yards east of Liberty Island. This Safety Zone is a 360-
                                                                                                                                    yard radius from the barge.
                                                                                                                                  • Date: November 29, 2018.
                                                                                                                                  • Time: 10:00 p.m.–11:30 p.m.
                                             2. Circle Line Sightseeing Yachts NYE, Liberty Island Safety Zone, 3                 • Launch site: A barge located in approximate position 40°41′16.5″ N
                                               CFR 165.160 (2.1).                                                                   074°02′23″ W (NAD 1983), located in Federal Anchorage 20–C,
                                                                                                                                    about 360 yards east of Liberty Island. This Safety Zone is a 360-
                                                                                                                                    yard radius from the barge.
                                                                                                                                  • Date: December 31, 2018–January 1, 2019.
                                                                                                                                  • Time: 11:00 p.m.–01:00 a.m.



                                               Under the provisions of 33 CFR                        ACTION:   Final rule.                                 information about the docket available
                                             165.160, vessels may not enter the safety                                                                     at http://www.epa.gov/dockets.
                                             zones unless given permission from the                  SUMMARY:   This regulation establishes an
                                                                                                     exemption from the requirement of a                   FOR FURTHER INFORMATION CONTACT:
                                             COTP or a designated representative.                                                                          Michael L. Goodis, Registration Division
                                             Spectator vessels may transit outside the               tolerance for residues of tin oxide (CAS
                                                                                                     Reg. No. 18282–10–5) when used as an                  (7505P), Office of Pesticide Programs,
                                             safety zones but may not anchor, block,                                                                       Environmental Protection Agency, 1200
                                             loiter in, or impede the transit of other               inert ingredient (seed treatment
                                                                                                     colorant) not to exceed 40% by weight                 Pennsylvania Ave. NW, Washington, DC
                                             vessels. The Coast Guard may be                                                                               20460–0001; main telephone number:
                                             assisted by other Federal, State, or local              in pesticide formulations applied to
                                                                                                     growing crops. Exponent on behalf of                  (703) 305–7090; email address:
                                             law enforcement agencies in enforcing                                                                         RDFRNotices@epa.gov.
                                             this regulation.                                        Aceto Corporation submitted a petition
                                               This notice of enforcement is issued                  to EPA under the Federal Food, Drug,                  SUPPLEMENTARY INFORMATION:
                                             under authority of 33 CFR 165.160(a)                    and Cosmetic Act (FFDCA), requesting
                                                                                                                                                           I. General Information
                                             and 5 U.S.C. 552(a). In addition to this                establishment of an exemption from the
                                             notice in the Federal Register, the Coast               requirement of a tolerance. This                      A. Does this action apply to me?
                                             Guard will provide mariners with                        regulation eliminates the need to
                                                                                                     establish a maximum permissible level                    You may be potentially affected by
                                             advanced notification of enforcement                                                                          this action if you are an agricultural
                                             periods via the Local Notice to Mariners                for residues of tin oxide.
                                                                                                                                                           producer, food manufacturer, or
                                             and marine information broadcasts.                      DATES: This regulation is effective
                                                                                                                                                           pesticide manufacturer. The following
                                               If the COTP determines that a safety                  November 9, 2018. Objections and                      list of North American Industrial
                                             zone need not be enforced for the full                  requests for hearings must be received                Classification System (NAICS) codes is
                                             duration stated in this notice of                       on or before January 8, 2019, and must                not intended to be exhaustive, but rather
                                             enforcement, a Broadcast Notice to                      be filed in accordance with the                       provides a guide to help readers
                                             Mariners may be used to grant general                   instructions provided in 40 CFR part                  determine whether this document
                                             permission to enter the safety zone.                    178 (see also Unit I.C. of the                        applies to them. Potentially affected
                                                Dated: October 3, 2018.                              SUPPLEMENTARY INFORMATION).
                                                                                                                                                           entities may include:
                                                                                                     ADDRESSES: The docket for this action,
                                             J.P. Tama,                                                                                                       • Crop production (NAICS code 111).
                                             Captain, U.S. Coast Guard, Captain of the               identified by docket identification (ID)
                                                                                                     number EPA–HQ–OPP–2017–0614, is                          • Animal production (NAICS code
                                             Port New York.
                                                                                                     available at http://www.regulations.gov               112).
                                             [FR Doc. 2018–24573 Filed 11–8–18; 8:45 am]
                                                                                                     or at the Office of Pesticide Programs                   • Food manufacturing (NAICS code
                                             BILLING CODE 9110–04–P
                                                                                                     Regulatory Public Docket (OPP Docket)                 311).
                                                                                                     in the Environmental Protection Agency                   • Pesticide manufacturing (NAICS
                                                                                                     Docket Center (EPA/DC), West William                  code 32532).
                                             ENVIRONMENTAL PROTECTION
                                             AGENCY                                                  Jefferson Clinton Bldg., Rm. 3334, 1301               B. How can I get electronic access to
                                                                                                     Constitution Ave. NW, Washington, DC                  other related information?
                                             40 CFR Part 180                                         20460–0001. The Public Reading Room
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                                                                                                     is open from 8:30 a.m. to 4:30 p.m.,                    You may access a frequently updated
                                             [EPA–HQ–OPP–2017–0614; FRL–9982–73]                     Monday through Friday, excluding legal                electronic version of 40 CFR part 180
                                                                                                     holidays. The telephone number for the                through the Government Printing
                                             Tin Oxide; Exemption From the
                                                                                                     Public Reading Room is (202) 566–1744,                Office’s e-CFR site at http://
                                             Requirement of a Tolerance
                                                                                                     and the telephone number for the OPP                  www.ecfr.gov/cgi-bin/text-idx?&
                                             AGENCY: Environmental Protection                        Docket is (703) 305–5805. Please review               c=ecfr&tpl=/ecfrbrowse/Title40/40tab_
                                             Agency (EPA).                                           the visitor instructions and additional               02.tpl.


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                                                               Federal Register / Vol. 83, No. 218 / Friday, November 9, 2018 / Rules and Regulations                                        55971

                                             C. How can I file an objection or hearing               petition requested that 40 CFR 180.920                aggregate exposure to the pesticide
                                             request?                                                be amended by establishing an                         chemical residue. . . .’’
                                               Under FFDCA section 408(g), 21                        exemption from the requirement of a                     EPA establishes exemptions from the
                                             U.S.C. 346a, any person may file an                     tolerance for residues of tin oxide (CAS              requirement of a tolerance only in those
                                             objection to any aspect of this regulation              Reg. No. 18282–10–5) when used as an                  cases where it can be clearly
                                             and may also request a hearing on those                 inert ingredient (seed treatment                      demonstrated that the risks from
                                             objections. You must file your objection                colorant) in pesticide formulations                   aggregate exposure to pesticide
                                             or request a hearing on this regulation                 applied to growing crops not to exceed                chemical residues under reasonably
                                             in accordance with the instructions                     40% by weight. That document                          foreseeable circumstances will pose no
                                             provided in 40 CFR part 178. To ensure                  referenced a summary of the petition                  appreciable risks to human health. In
                                             proper receipt by EPA, you must                         prepared by Exponent on behalf of                     order to determine the risks from
                                             identify docket ID number EPA–HQ–                       Aceto Corporation, the petitioner, which              aggregate exposure to pesticide inert
                                             OPP–2017–0614 in the subject line on                    is available in the docket, http://                   ingredients, the Agency considers the
                                             the first page of your submission. All                  www.regulations.gov. There were no                    toxicity of the inert in conjunction with
                                             objections and requests for a hearing                   timely comments received in response                  possible exposure to residues of the
                                             must be in writing, and must be                         to the notice of filing.                              inert ingredient through food, drinking
                                             received by the Hearing Clerk on or                     III. Inert Ingredient Definition                      water, and through other exposures that
                                             before January 8, 2019. Addresses for                                                                         occur as a result of pesticide use in
                                             mail and hand delivery of objections                      Inert ingredients are all ingredients               residential settings. If EPA is able to
                                             and hearing requests are provided in 40                 that are not active ingredients as defined            determine that a finite tolerance is not
                                             CFR 178.25(b).                                          in 40 CFR 153.125 and include, but are                necessary to ensure that there is a
                                               In addition to filing an objection or                 not limited to, the following types of                reasonable certainty that no harm will
                                             hearing request with the Hearing Clerk                  ingredients (except when they have a                  result from aggregate exposure to the
                                             as described in 40 CFR part 178, please                 pesticidal efficacy of their own):                    inert ingredient, an exemption from the
                                             submit a copy of the filing (excluding                  Solvents such as alcohols and                         requirement of a tolerance may be
                                             any Confidential Business Information                   hydrocarbons; surfactants such as                     established.
                                             (CBI)) for inclusion in the public docket.              polyoxyethylene polymers and fatty                      Consistent with FFDCA section
                                             Information not marked confidential                     acids; carriers such as clay and                      408(c)(2)(A), and the factors specified in
                                             pursuant to 40 CFR part 2 may be                        diatomaceous earth; thickeners such as                FFDCA section 408(c)(2)(B), EPA has
                                             disclosed publicly by EPA without prior                 carrageenan and modified cellulose;                   reviewed the available scientific data
                                             notice. Submit the non-CBI copy of your                 wetting, spreading, and dispersing                    and other relevant information in
                                             objection or hearing request, identified                agents; propellants in aerosol                        support of this action. EPA has
                                             by docket ID number EPA–HQ–OPP–                         dispensers; microencapsulating agents;                sufficient data to assess the hazards of
                                             2017–0614, by one of the following                      and emulsifiers. The term ‘‘inert’’ is not            and to make a determination on
                                             methods:                                                intended to imply nontoxicity; the                    aggregate exposure for tin oxide
                                               • Federal eRulemaking Portal: http://                 ingredient may or may not be                          including exposure resulting from the
                                             www.regulations.gov. Follow the online                  chemically active. Generally, EPA has                 exemption established by this action.
                                             instructions for submitting comments.                   exempted inert ingredients from the                   EPA’s assessment of exposures and risks
                                             Do not submit electronically any                        requirement of a tolerance based on the               associated with tin oxide follows.
                                             information you consider to be CBI or                   low toxicity of the individual inert
                                                                                                                                                           A. Toxicological Profile
                                             other information whose disclosure is                   ingredients.
                                             restricted by statute.                                                                                           EPA has evaluated the available
                                                                                                     IV. Aggregate Risk Assessment and
                                               • Mail: OPP Docket, Environmental                                                                           toxicity data and considered their
                                                                                                     Determination of Safety
                                             Protection Agency Docket Center (EPA/                                                                         validity, completeness, and reliability as
                                             DC), (28221T), 1200 Pennsylvania Ave.                      Section 408(c)(2)(A)(i) of FFDCA                   well as the relationship of the results of
                                             NW, Washington, DC 20460–0001.                          allows EPA to establish an exemption                  the studies to human risk. EPA has also
                                               • Hand Delivery: To make special                      from the requirement for a tolerance (the             considered available information
                                             arrangements for hand delivery or                       legal limit for a pesticide chemical                  concerning the variability of the
                                             delivery of boxed information, please                   residue in or on a food) only if EPA                  sensitivities of major identifiable
                                             follow the instructions at http://                      determines that the tolerance is ‘‘safe.’’            subgroups of consumers, including
                                             www.epa.gov/dockets/contacts.html.                      Section 408(b)(2)(A)(ii) of FFDCA                     infants and children. Specific
                                               Additional instructions on                            defines ‘‘safe’’ to mean that ‘‘there is a            information on the studies received and
                                             commenting or visiting the docket,                      reasonable certainty that no harm will                the nature of the adverse effects caused
                                             along with more information about                       result from aggregate exposure to the                 by tin oxide as well as the no-observed-
                                             dockets generally, is available at http://              pesticide chemical residue, including                 adverse-effect-level (NOAEL) and the
                                             www.epa.gov/dockets.                                    all anticipated dietary exposures and all             lowest-observed-adverse-effect-level
                                                                                                     other exposures for which there is                    (LOAEL) from the toxicity studies are
                                             II. Petition for Exemption                              reliable information.’’ This includes                 discussed in this unit.
                                               In the Federal Register of March 21,                  exposure through drinking water and in                   Although limited data are available on
                                             2018 (83 FR 12311) (FRL–9974–76),                       residential settings, but does not include            tin oxide, tin oxide belongs to the
                                             EPA issued a document pursuant to                       occupational exposure. Section                        chemical class of water insoluble
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                                             FFDCA section 408, 21 U.S.C. 346a,                      408(b)(2)(C) of FFDCA requires EPA to                 inorganic tins; therefore, the Agency
                                             announcing the filing of a pesticide                    give special consideration to exposure                used data available on inorganic tins,
                                             petition (PP IN–11058) by Exponent                      of infants and children to the pesticide              specifically tin (II) chloride (CAS Reg
                                             (1150 Connecticut Ave. NW, Suite 1100,                  chemical residue in establishing a                    No. 21651–19–4) to fill data gaps.
                                             Washington, DC 20036), on behalf of                     tolerance and to ‘‘ensure that there is a                The acute oral toxicity of tin oxide is
                                             Aceto Corporation (Aceto, 4 Tri Harbor                  reasonable certainty that no harm will                very low. The lethal dose, (LD)50>20,000
                                             Court, Port Washington, NY 11050). The                  result to infants and children from                   milligrams/kilograms (mg/kg) in rats


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                                             55972             Federal Register / Vol. 83, No. 218 / Friday, November 9, 2018 / Rules and Regulations

                                             and mice. There is no eye irritation in                 of reference values for risk assessment.              C. Exposure Assessment
                                             Leghorn eggs nor in bovine cornea.                      PODs are developed based on a careful                    1. Dietary exposure from food and
                                                The only repeated dose studies                       analysis of the doses in each                         feed uses. In evaluating dietary
                                             available with tin oxide are the 28-day                 toxicological study to determine the                  exposure to tin oxide, EPA considered
                                             and 13-week oral toxicity studies in rats.              dose at which no adverse effects are                  exposure under the proposed exemption
                                             No toxicity is observed in either study                 observed (the NOAEL) and the lowest                   from the requirement of a tolerance.
                                             up to 1,000 and 500 mg/kg/day,                          dose at which adverse effects of concern              EPA assessed dietary exposures from tin
                                             respectively of tin oxide, the highest                  are identified (the LOAEL). Uncertainty/              oxide in food as follows:
                                             dose tested in both studies.                            safety factors are used in conjunction                   Dietary exposure (food and drinking
                                                Although developmental and                           with the POD to calculate a safe                      water) to tin oxide can occur following
                                             reproduction toxicity studies are not                   exposure level—generally referred to as               ingestion of foods with residues from
                                             available on tin oxide, evidence of
                                                                                                     a population-adjusted dose (PAD) or a                 treated crops with pesticide
                                             potential developmental or
                                                                                                     reference dose (RfD)—and a safe margin                formulations containing tin oxide. In
                                             reproduction toxicity is not observed in
                                                                                                     of exposure (MOE). For non-threshold                  addition, dietary exposure can occur
                                             the available studies with tin oxide and
                                                                                                     risks, the Agency assumes that any                    from exposure to non-pesticidal sources
                                             no toxicity is seen up to 500 mg/kg/day,
                                                                                                     amount of exposure will lead to some                  of tin oxide. FDA has approved the use
                                             the highest dose tested. Available
                                                                                                     degree of risk. Thus, the Agency                      of tin oxide as a colorant in food-contact
                                             reproduction and developmental studies
                                                                                                     estimates risk in terms of the probability            articles at a maximum level of 1.1% by
                                             with tin (II) chloride that show no
                                                                                                     of an occurrence of the adverse effect                weight in colorants otherwise composed
                                             maternal, offspring or reproduction
                                                                                                     expected in a lifetime. For more                      of mica and titanium dioxide, provided
                                             toxicity at 40 mg/kg/day, the highest
                                                                                                     information on the general principles                 that the maximum loading rate for the
                                             dose tested, in rats, although these
                                                                                                     EPA uses in risk characterization and a               colorant in the food-contact material
                                             studies are of limited value since the
                                                                                                     complete description of the risk                      does not exceed 3% by weight for
                                             doses tested were not high enough to
                                                                                                     assessment process, see http://                       polymers, 5% for paper and paperboard,
                                             assess developmental and reproduction
                                                                                                     www.epa.gov/pesticides/factsheets/                    15% for coatings, or 30% for ink
                                             effects. Nevertheless, there is no
                                                                                                     riskassess.htm.                                       formulations. See Food and Drug
                                             concern for fetal susceptibility due to
                                                                                                                                                           Administration (FDA) threshold of
                                             dietary exposure to tin oxide because it                   The 13-week oral toxicity study in                 regulation (TOR) exemption 98–004. It
                                             is insoluble and is not expected to be                  rats is selected for the chronic dietary              may be used, in combination with
                                             absorbed or cause systemic toxicity.                    exposure scenario. No toxicity is                     silicon dioxide and titanium dioxide, as
                                             Also, no toxicity is observed in                        observed up to 500 mg/kg/day, the                     a colorant for food-contact polymers,
                                             reproduction organs at 500 and 1,000                    highest dose tested. The lowest NOAEL                 paper and paperboard, coatings, and in
                                             mg/kg/day, the highest doses tested in                  in the database is found in the                       printing inks applied to non-food-
                                             the 13- and 4-week, respectively, oral                  developmental and reproduction                        contact surfaces of food-contact articles.
                                             toxicity studies in rats.                               toxicity studies in the rat. In these
                                                Carcinogenicity studies with tin (II)                                                                      The food contact substance will be used
                                                                                                     studies, no treatment related adverse                 at a level not to exceed 6% of the total
                                             chloride in rats and mice indicate that                 toxicity is observed at 800 ppm (40 mg
                                             inorganic tins are not carcinogenic at 40                                                                     colorant weight. See FDA, Food Contact
                                                                                                     tin/kg/day), the highest dose tested in               Notification (FCN) 000431. Tin oxide
                                             and 60 mg/kg/day, respectively, the                     both studies. However, the
                                             highest dose tested.                                                                                          can also be used as a pigment for all
                                                                                                     developmental and reproduction                        polyolefins for food contact applications
                                                In an in vitro mutagenicity assay, tin               toxicity studies are not considered
                                             oxide caused micronuclei and                                                                                  as long as the use level does not exceed
                                                                                                     appropriate for risk assessment since                 0.5% by weight of the polymer and is
                                             karyorrhexis in lung macrophages. The                   tested doses are not high enough to
                                             toxicologic significance of this finding is                                                                   subject to certain limitations. See FDA,
                                                                                                     assess developmental and reproduction                 Food Contact Notification (FCN) 235.
                                             equivocal.                                              toxicity. Therefore, the 13-week toxicity
                                                Neurotoxicity and immunotoxicity                                                                              Because no adverse effects
                                                                                                     study in rats treated with tin oxide is               attributable to a single exposure of tin
                                             studies are not available for review.
                                                                                                     used for the chronic dietary exposure                 oxide are seen in the toxicity databases,
                                             However, no evidence of neurotoxicity
                                                                                                     scenario. There is no concern for the                 an acute dietary risk assessment is not
                                             and immunotoxicity is observed in the
                                                                                                     lack of developmental and reproduction                necessary. For the chronic dietary risk
                                             submitted studies.
                                                The absorption of inorganic tin                      toxicity studies because tin oxide is an              assessment, EPA used the Dietary
                                             compounds from the gastrointestinal                     insoluble tin and is not expected to be               Exposure Evaluation Model software
                                             tract in humans and animals is very low                 absorbed or cause systemic toxicity.                  with the Food Commodity Intake
                                             with as much as 98% excreted directly                   Further supporting the lack of toxicity,              Database (DEEM–FCIDTM), Version 3.16,
                                             in the feces. Because of their limited                  no systemic toxicity or adverse effects               and food consumption information from
                                             absorption, inorganic tin compounds                     are observed up to 500 mg/kg/day, the                 the U.S. Department of Agriculture’s
                                             have low systemic toxicity.                             highest dose tested, in the 13-week                   (USDA’s) 2003–2008 National Health
                                                                                                     toxicity study in rats. Based on the                  and Nutrition Examination Survey,
                                             B. Toxicological Points of Departure/                   weight of evidence, there is no concern               What We Eat in America (NHANES/
                                             Levels of Concern                                       for increased susceptibility and no                   WWEIA). As to residue levels in food,
                                                Once a pesticide’s toxicological                     additional uncertainty factor is                      no residue data were submitted for tin
                                             profile is determined, EPA identifies                   necessary. The standard inter- and intra-             oxide. In the absence of specific residue
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                                             toxicological points of departure (POD)                 species uncertainty factors of 10x are                data, EPA utilized a highly conservative
                                             and levels of concern to use in                         applied. Dermal and inhalation                        assumption that the residues on all
                                             evaluating the risk posed by human                      endpoints were not selected as tin oxide              commodities are 47 ppm based on the
                                             exposure to the pesticide. For hazards                  is not expected to be dermally absorbed               effective application rate of tin oxide
                                             that have a threshold below which there                 because it is insoluble, and not expected             when used as a colorant for seed
                                             is no appreciable risk, the toxicological               to be absorbed in the lungs due to its                treatment pesticide products and the
                                             POD is used as the basis for derivation                 particle size.                                        presumption that all applied tin oxide


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                                                               Federal Register / Vol. 83, No. 218 / Friday, November 9, 2018 / Rules and Regulations                                       55973

                                             would be present in the edible portions                 purposes of this tolerance action,                    probability of acquiring cancer given the
                                             of crops derived from treated seed. A                   therefore, EPA has assumed that tin                   estimated aggregate exposure. Short-,
                                             complete description of the general                     oxide does not have a common                          intermediate-, and chronic-term risks
                                             approach taken to assess inert                          mechanism of toxicity with other                      are evaluated by comparing the
                                             ingredient risks in the absence of                      substances. For information regarding                 estimated aggregate food, water, and
                                             residue data is contained in the                        EPA’s efforts to determine which                      residential exposure to the appropriate
                                             memorandum entitled ‘‘Alkyl Amines                      chemicals have a common mechanism                     PODs to ensure that an adequate MOE
                                             Polyalkoxylates (Cluster 4): Acute and                  of toxicity and to evaluate the                       exists.
                                             Chronic Aggregate (Food and Drinking                    cumulative effects of such chemicals,                    1. Acute risk. An acute aggregate risk
                                             Water) Dietary Exposure and Risk                        see EPA’s website at http://                          assessment takes into account acute
                                             Assessments for the Inerts,’’ (D361707,                 www.epa.gov/pesticides/cumulative.                    exposure estimates from dietary
                                             S. Piper, 2/25/09) and can be found at                                                                        consumption of food and drinking
                                                                                                     D. Safety Factor for Infants and
                                             http://www.regulations.gov in docket ID                                                                       water. No adverse effect resulting from
                                                                                                     Children
                                             number EPA–HQ–OPP–2008–0738.                                                                                  a single oral exposure was identified
                                                2. Dietary exposure from drinking                       Section 408(b)(2)(C) of FFDCA                      and no acute dietary endpoint was
                                             water. For the purpose of the screening                 provides that EPA shall apply an                      selected.
                                             level dietary risk assessment to support                additional tenfold (10X) margin of safety                2. Chronic risk. Using the exposure
                                             this request for an exemption from the                  for infants and children in the case of               assumptions described in this unit for
                                             requirement of a tolerance for tin oxide,               threshold effects to account for prenatal             chronic exposure, EPA has concluded
                                             a conservative drinking water                           and postnatal toxicity and the                        that chronic exposure to tin oxide from
                                             concentration value of 100 parts per                    completeness of the database on toxicity              food and water will utilize 38.3% of the
                                             billion (ppb) based on screening level                  and exposure unless EPA determines
                                                                                                                                                           cPAD for children 1–2 years old, the
                                             modeling was used to assess the                         based on reliable data that a different
                                                                                                                                                           population group receiving the greatest
                                             contribution to drinking water for the                  margin of safety will be safe for infants
                                                                                                                                                           exposure. Based on the available data,
                                             chronic dietary risk assessments for                    and children. This additional margin of
                                                                                                                                                           oral exposure to tin oxide residues from
                                             parent compound. These values were                      safety is commonly referred to as the
                                                                                                                                                           non-pesticide uses is expected to be
                                             directly entered into the dietary                       FQPA SF. In applying this provision,
                                                                                                                                                           negligible compared to the conservative
                                             exposure model.                                         EPA either retains the default value of
                                                                                                                                                           estimates of exposure resulting from the
                                                3. From non-dietary exposure. The                    10X, or uses a different additional safety
                                                                                                                                                           proposed use as a colorant for seed
                                             term ‘‘residential exposure’’ is used in                factor when reliable data available to
                                                                                                                                                           treatment pesticides, and not expected
                                             this document to refer to non-                          EPA support the choice of a different
                                                                                                     factor.                                               to significantly impact dietary exposure.
                                             occupational, non-dietary exposure
                                             (e.g., textiles (clothing and diapers),                    The Agency has concluded that there                   3. Short- and intermediate-term risks.
                                             carpets, swimming pools, and hard                       is reliable data to determine that infants            Short- and intermediate-term aggregate
                                             surface disinfection on walls, floors,                  and children will be safe if the FQPA SF              exposures take into account short- and
                                             tables).                                                of 10x is reduced to 1X for the chronic               intermediate-term residential exposures
                                                Tin oxide is not expected to be used                 dietary assessment for the following                  plus chronic exposure to food and water
                                             as an inert ingredient in pesticide                     reasons. First, the toxicity database for             (considered to be a background
                                             products that are registered for specific               tin oxide contains subchronic,                        exposure level).
                                             uses that may result in residential                     carcinogenicity and mutagenicity                         Tin oxide is not expected to be used
                                             exposure, as the requested use is for                   studies. There is no indication of                    as an inert ingredient in pesticide
                                             commercial use only. However, tin                       immunotoxicity or neurotoxicity in the                products that could result in short- and
                                             oxide is present in cosmetics and                       available studies; therefore, there is no             intermediate-term residential exposure
                                             personal care products. The typical                     need to require an immunotoxicity or                  as the request is strictly for commercial
                                             reported concentration for tin oxide in                 neurotoxicity study. Although no                      seed treatment use only, although tin
                                             cosmetics and personal care products                    developmental and reproduction                        oxide is currently approved for use in
                                             ranges from 0.03 to 1.3%. Based on the                  toxicity studies with tin oxide are                   cosmetic, manufacturing applications.
                                             2013 Cosmetic Ingredient Review (CIR)                   available, there is no concern for fetal                 Dermal exposure to residues of tin
                                             document, tin oxide is used in dusting                  susceptibility because tin oxide is                   oxide is not expected to result in
                                             powders (up to 0.03%), body and hand                    insoluble and is not expected to be                   systemic toxicity as tin oxide is
                                             cosmetic sprays (up to 0.06%), and                      absorbed or cause systemic toxicity.                  insoluble and not absorbed through the
                                             other fragrance preparations (up to                     Further supporting the lack of toxicity,              skin. Inhalation exposure is possible
                                             0.08%).                                                 no adverse effects or systemic toxicity               due to its use in cosmetics and personal
                                                4. Cumulative effects from substances                are observed up to 500 mg/kg/day, the                 care products. However, as reported in
                                             with a common mechanism of toxicity.                    highest dose tested, in the 13-week                   the CIR 2013 on tin oxide, inhalation
                                             Section 408(b)(2)(D)(v) of FFDCA                        toxicity study in rats. Based on the                  exposure to tin oxide particles are not
                                             requires that, when considering whether                 weight of evidence, there is no concern               expected as 95–99% of the particles are
                                             to establish, modify, or revoke a                       for increased susceptibility and, the                 >10 micrometers (um) and not expected
                                             tolerance, the Agency consider                          Agency has concluded that reducing the                to enter the lungs. Because of the lack
                                             ‘‘available information’’ concerning the                FQPA SF to 1X is appropriate.                         of adverse effects from dermal or
                                             cumulative effects of a particular                                                                            inhalation exposure, the Agency does
                                             pesticide’s residues and ‘‘other                        E. Aggregate Risks and Determination of               not expect these residential exposures to
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                                             substances that have a common                           Safety                                                pose risks of concern.
                                             mechanism of toxicity.’’                                   EPA determines whether acute and                      4. Aggregate cancer risk for U.S.
                                                EPA has not found tin oxide to share                 chronic dietary pesticide exposures are               population. Based on the lack of
                                             a common mechanism of toxicity with                     safe by comparing aggregate exposure                  evidence of carcinogenicity in two
                                             any other substances, and tin oxide does                estimates to the acute PAD (aPAD) and                 rodent carcinogenicity studies, tin oxide
                                             not appear to produce a toxic metabolite                chronic PAD (cPAD). For linear cancer                 is not expected to pose a cancer risk to
                                             produced by other substances. For the                   risks, EPA calculates the lifetime                    humans.


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                                             55974             Federal Register / Vol. 83, No. 218 / Friday, November 9, 2018 / Rules and Regulations

                                                5. Determination of safety. Based on                 Order 13045, entitled ‘‘Protection of                 contain any unfunded mandate as
                                             these risk assessments, EPA concludes                   Children from Environmental Health                    described under Title II of the Unfunded
                                             that there is a reasonable certainty that               Risks and Safety Risks’’ (62 FR 19885,                Mandates Reform Act (UMRA) (2 U.S.C.
                                             no harm will result to the general                      April 23, 1997), nor is it considered a               1501 et seq.).
                                             population, or to infants and children                  regulatory action under Executive Order                 This action does not involve any
                                             from aggregate exposure to tin oxide                    13771, entitled ‘‘Reducing Regulations                technical standards that would require
                                             residues.                                               and Controlling Regulatory Costs’’ (82                Agency consideration of voluntary
                                                                                                     FR 9339, February 3, 2017). This action               consensus standards pursuant to section
                                             V. Other Considerations                                 does not contain any information                      12(d) of the National Technology
                                             A. Analytical Enforcement Methodology                   collections subject to OMB approval                   Transfer and Advancement Act
                                                                                                     under the Paperwork Reduction Act                     (NTTAA) (15 U.S.C. 272 note).
                                                An analytical method is not required                 (PRA) (44 U.S.C. 3501 et seq.), nor does
                                             for enforcement purposes since the                      it require any special considerations                 VIII. Congressional Review Act
                                             Agency is establishing an exemption                     under Executive Order 12898, entitled
                                             from the requirement of a tolerance                                                                             Pursuant to the Congressional Review
                                                                                                     ‘‘Federal Actions to Address                          Act (5 U.S.C. 801 et seq.), EPA will
                                             without any numerical limitation. The                   Environmental Justice in Minority
                                             Agency ensures compliance with the                                                                            submit a report containing this rule and
                                                                                                     Populations and Low-Income                            other required information to the U.S.
                                             limitation in the tolerance exemption                   Populations’’ (59 FR 7629, February 16,
                                             through the registration of pesticides                                                                        Senate, the U.S. House of
                                                                                                     1994).                                                Representatives, and the Comptroller
                                             with formulations that satisfy the                         Since tolerances and exemptions that
                                             limitation under the Federal Insecticide,                                                                     General of the United States prior to
                                                                                                     are established on the basis of a petition
                                             Fungicide, and Rodenticide Act                                                                                publication of the rule in the Federal
                                                                                                     under FFDCA section 408(d), such as
                                             (FIFRA).                                                                                                      Register. This action is not a ‘‘major
                                                                                                     the exemption in this final rule, do not
                                                                                                                                                           rule’’ as defined by 5 U.S.C. 804(2).
                                             VI. Conclusions                                         require the issuance of a proposed rule,
                                                                                                     the requirements of the Regulatory                    List of Subjects in 40 CFR Part 180
                                               Therefore, an exemption from the                      Flexibility Act (RFA) (5 U.S.C. 601 et
                                             requirement of a tolerance is established               seq.), do not apply.                                    Environmental protection,
                                             under 40 CFR 180.920 for residues of tin                   This action directly regulates growers,            Administrative practice and procedure,
                                             oxide (CAS Reg. No. 18282–10–5) when                    food processors, food handlers, and food              Agricultural commodities, Pesticides
                                             used as an inert ingredient (colorant) in               retailers, not States or tribes, nor does             and pests, Reporting and recordkeeping
                                             pesticide seed treatment formulations                   this action alter the relationships or                requirements.
                                             applied to growing crops not to exceed                  distribution of power and                               Dated: November 1, 2018.
                                             40% by weight.                                          responsibilities established by Congress              Michael L. Goodis,
                                             VII. Statutory and Executive Order                      in the preemption provisions of FFDCA                 Director, Registration Division, Office of
                                             Reviews                                                 section 408(n)(4). As such, the Agency                Pesticide Programs.
                                                                                                     has determined that this action will not
                                               This action establishes an exemption                  have a substantial direct effect on States              Therefore, 40 CFR chapter I is
                                             to the requirement for a tolerance under                or tribal governments, on the                         amended as follows:
                                             FFDCA section 408(d) in response to a                   relationship between the national
                                                                                                                                                           PART 180—[AMENDED]
                                             petition submitted to the Agency. The                   government and the States or tribal
                                             Office of Management and Budget                         governments, or on the distribution of
                                                                                                                                                           ■ 1. The authority citation for part 180
                                             (OMB) has exempted these types of                       power and responsibilities among the
                                                                                                                                                           continues to read as follows:
                                             actions from review under Executive                     various levels of government or between
                                             Order 12866, entitled ‘‘Regulatory                      the Federal Government and Indian                         Authority: 21 U.S.C. 321(q), 346a and 371.
                                             Planning and Review’’ (58 FR 51735,                     tribes. Thus, the Agency has determined               ■ 2. In § 180.920, add alphabetically the
                                             October 4, 1993). Because this action                   that Executive Order 13132, entitled                  inert ingredient ‘‘Tin oxide (CAS Reg.
                                             has been exempted from review under                     ‘‘Federalism’’ (64 FR 43255, August 10,               No. 18282–10–5)’’ to the table to read as
                                             Executive Order 12866, this action is                   1999) and Executive Order 13175,                      follows:
                                             not subject to Executive Order 13211,                   entitled ‘‘Consultation and Coordination
                                             entitled ‘‘Actions Concerning                           with Indian Tribal Governments’’ (65 FR               § 180.920 Inert ingredients used pre-
                                             Regulations That Significantly Affect                   67249, November 9, 2000) do not apply                 harvest; exemptions from the requirement
                                             Energy Supply, Distribution, or Use’’ (66               to this action. In addition, this action              of a tolerance.
                                             FR 28355, May 22, 2001) or Executive                    does not impose any enforceable duty or               *        *       *        *   *

                                                           Inert ingredients                                                              Limits                                                  Uses


                                                      *                  *                              *               *                   *                   *                                  *
                                             Tin oxide (CAS Reg. No. 18282–10–5) ...            Not to exceed 40% by weight for use in seed treatment pesticide formulations                 Colorant.
                                                                                                  only.
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                                                       *                       *                       *                      *                       *                          *                 *



                                             [FR Doc. 2018–24585 Filed 11–8–18; 8:45 am]
                                             BILLING CODE 6560–50–P




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Document Created: 2018-11-09 03:33:27
Document Modified: 2018-11-09 03:33:27
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 9, 2018. Objections and requests for hearings must be received on or before January 8, 2019, 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 L. Goodis, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460-
FR Citation83 FR 55970 
CFR AssociatedEnvironmental Protection; Administrative Practice and Procedure; Agricultural Commodities; Pesticides and Pests and Reporting and Recordkeeping Requirements

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