82_FR_43123 82 FR 42947 - EPTC; Pesticide Tolerances

82 FR 42947 - EPTC; Pesticide Tolerances

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 82, Issue 176 (September 13, 2017)

Page Range42947-42952
FR Document2017-19452

This regulation establishes tolerances for residues of EPTC, S-ethyl dipropylthiocarbamate in or on grass, forage at 0.60 ppm and grass, hay at 0.50 ppm. Gowan Company requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).

Federal Register, Volume 82 Issue 176 (Wednesday, September 13, 2017)
[Federal Register Volume 82, Number 176 (Wednesday, September 13, 2017)]
[Rules and Regulations]
[Pages 42947-42952]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-19452]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2015-0308; FRL-9965-71]


EPTC; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This regulation establishes tolerances for residues of EPTC, 
S-ethyl dipropylthiocarbamate in or on grass, forage at 0.60 ppm and 
grass, hay at 0.50 ppm. Gowan Company requested these tolerances under 
the Federal Food, Drug, and Cosmetic Act (FFDCA).

DATES: This regulation is effective September 13, 2017. Objections and 
requests for hearings must be received on or before November 13, 2017, 
and must be filed in accordance with the instructions provided in 40 
CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).

ADDRESSES: The docket for this action, identified by docket 
identification (ID) number EPA-HQ-OPP-2015-0308, is available at 
https://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

[[Page 42948]]

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 EPA's 
tolerance regulations at 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. To access the OCSPP 
test guidelines referenced in this document electronically, please go 
to https://www.epa.gov/test-guidelines-pesticides-and-toxic-substances.

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

    Under FFDCA section 408(g), 21 U.S.C. 346a, any person may file an 
objection to any aspect of this regulation and may also request a 
hearing on those objections. You must file your objection or request a 
hearing on this regulation in accordance with the instructions provided 
in 40 CFR part 178. To ensure proper receipt by EPA, you must identify 
docket ID number EPA-HQ-OPP-2015-0308 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 
November 13, 2017. Addresses for mail and hand delivery of objections 
and hearing requests are provided in 40 CFR 178.25(b).
    In addition to filing an objection or hearing request with the 
Hearing Clerk as described in 40 CFR part 178, please submit a copy of 
the filing (excluding any Confidential Business Information (CBI)) for 
inclusion in the public docket. Information not marked confidential 
pursuant to 40 CFR part 2 may be disclosed publicly by EPA without 
prior notice. Submit the non-CBI copy of your objection or hearing 
request, identified by docket ID number EPA-HQ-OPP-2015-0308, by one of 
the following methods:
     Federal eRulemaking Portal: https://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 https://www.epa.gov/dockets/where-send-comments-epa-dockets.
Additional instructions on commenting or visiting the docket, along 
with more information about dockets generally, is available at https://www.epa.gov/dockets.

II. Summary of Petitioned-For Tolerances

    In the Federal Register of Friday, July 17, 2015 (80 FR 42462) 
(FRL-9929-13), EPA issued a document pursuant to FFDCA section 
408(d)(3), 21 U.S.C. 346a(d)(3), announcing the filing of a pesticide 
petition (PP 5F8355) by Gowan Company, P.O. Box 5569, Yuma, AZ 85366. 
The petition requested that 40 CFR part 180 be amended by establishing 
tolerances for residues of the herbicide EPTC, S-ethyl 
dipropylthiocarbamate, in or on grass grown for seed, forage at 0.6 
parts per million (ppm) and grass grown for seed, hay at 0.5 ppm. That 
document referenced a summary of the petition prepared by Gowan 
Company, the registrant, which is available in the docket, https://www.regulations.gov. There were no comments received in response to the 
notice of filing.

III. Aggregate Risk Assessment and Determination of Safety

    Section 408(b)(2)(A)(i) of FFDCA allows EPA to establish 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. . . 
.''
    Consistent with FFDCA section 408(b)(2)(D), and the factors 
specified in FFDCA section 408(b)(2)(D), 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 EPTC, including exposure 
resulting from the tolerances established by this action. EPA's 
assessment of exposures and risks associated with EPTC follows.

A. Toxicological Profile

    EPA has evaluated the available toxicity data and considered its 
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.
    On an acute exposure basis, EPTC is highly toxic via inhalation and 
is moderately toxic via the oral and dermal routes of exposure. It is 
slightly irritating to eyes and minimally-irritating to skin. It is a 
weak skin sensitizer.
    EPTC is an S-alkylthiocarbamate, which consistently produced 
cardiomyopathy and neuronal cell necrosis in studies of varying length 
of treatment and in different species. Cardiotoxicity was observed in 
subchronic and long-term studies, and in general, the severity and 
incidence of the lesion increased with increasing doses of EPTC. In 90-
day feeding and inhalation studies and in two chronic feeding/
oncogenicity studies, histopathological evaluation revealed myocardial 
degeneration. Myocardial degeneration in adult rats was also observed 
in two separate two-generation reproduction studies. In two chronic dog 
studies, degenerative changes in the cardiac muscle were observed when 
EPTC was administered in a capsule, but not when administered (at 
comparable doses) in the diet. In both dog studies, electrocardiograms 
were taken, but only one high-dose male in the capsule study had 
changes which were described as ``potentially'' treatment-related.
    EPTC, as well as other thiocarbamates (molinate, cycloate, 
pebulate, vernolate and butylate), have toxic effects on the central 
and peripheral nervous systems. With EPTC, there was an increased 
incidence and severity of neuronal necrosis/degeneration in both the 
central and peripheral nervous systems of rats and dogs. In the rat 
neurotoxicity studies, dose-related increases in the incidence of 
neuronal necrosis were observed in the brains after acute and 
subchronic exposure to EPTC. In the rat developmental neurotoxicity 
study, a

[[Page 42949]]

marginal decrease in absolute (not relative) pup brain weight (4-6%) 
was observed in only one sex (male pups) and at only one time point 
(PND63). Furthermore, this marginal effect had no dose-response, was 
not seen after perfusion, and had no corresponding necrosis. Therefore, 
this effect was considered marginal at best and not robust. In both of 
the combined chronic toxicity/carcinogenicity studies in the rat and in 
the chronic (capsule) study in the dog, treatment-related neuromuscular 
lesions were observed. In all of these studies, hindquarter weakness 
with corresponding histopathology findings of atrophy and degeneration 
of the skeletal muscle were observed. In the dog study, the lesions 
were described as Wallerian-type degeneration in the spinal cords and 
various peripheral nerves.
    EPTC is a reversible acetylcholinesterase (AChE) inhibitor. 
Toxicology studies with EPTC did not show any consistent pattern of 
AChE-inhibition between different species, length of treatment, or the 
type of AChE enzyme measured. In some studies, brain AChE activity was 
inhibited without any effect on either plasma or erythrocyte AChE 
activities. In other studies, erythrocyte AChE was inhibited with no 
inhibition of either plasma or brain AChE. AChE-inhibition was observed 
at comparable or higher doses than where cardiac/neuronal effects were 
observed.
    There is no evidence of increased susceptibility following in utero 
exposure to EPTC in either the rat or rabbit developmental toxicity 
study or following in utero and/or postnatal exposure in the 2-
generation reproduction study in rats. EPTC is classified as ``Not 
Likely to be Carcinogenic to Humans.'' This is based on the lack of 
carcinogenic potential noted in the available studies. There are no 
concerns for mutagenicity or clastogenicity. There is also no concern 
for immunotoxicity.
    Specific information on the studies received and the nature of the 
adverse effects caused by EPTC as well as the no-observed-adverse-
effect-level (NOAEL) and the lowest-observed-adverse-effect-level 
(LOAEL) from the toxicity studies scan be found at https://www.regulations.gov in document EPTC: Human Health Risk Assessment for 
the Proposed Section 3 Registration for Use on Grasses Grown for Seed 
Production in docket ID number EPA-HQ-OPP-2015-0308.

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 https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/assessing-human-health-risk-pesticides.
    A summary of the toxicological endpoints for EPTC used for human 
risk assessment is shown in Table 1 of this unit.

     Table 1--Summary of Toxicological Doses and Endpoints for EPTC for Use in Human Health Risk Assessment
----------------------------------------------------------------------------------------------------------------
                                    Point of departure
        Exposure/scenario            and uncertainty/     RfD, PAD, LOC for     Study and toxicological effects
                                      safety factors       risk assessment
----------------------------------------------------------------------------------------------------------------
Acute dietary (all populations     LOAEL = 200 mg/kg/    aRfD/aPAD = 0.2 mg/  Acute neurotoxicity rat study.
 including infants and children).   day.                  kg/day.             NOAEL not established in males.
                                   UFA = 10x...........                       LOAEL = 200 mg/kg/day based on
                                   UFH = 10x...........                        neuronal cell necrosis in the
                                   FQPA SF/UFL = 10x...                        brain in males.
----------------------------------------------------------------------------------------------------------------
Chronic dietary (all populations   POD = 5 mg/kg/day...  cRfD/cPAD = 0.05 mg/ Co-critical, chronic/
 including infants and children).  UFA = 10x...........   kg/day.              carcinogenicity and 2-generation
                                   UFH = 10x...........                        reproduction in rats.
                                   FQPA SF = 1x........
----------------------------------------------------------------------------------------------------------------
Incidental oral (short- and        POD = 5 mg/kg/day...  LOC for MOE = 100..  Chronic toxicity/carcinogenicity
 intermediate-term).               UFA = 10x...........                        rat study.
                                   UFH = 10x...........                       NOAEL = 5 mg/kg/day.
                                   FQPA SF = 1x........                       LOAEL = 25 mg/kg/day based on
                                                                               decreased body weight and
                                                                               increased incidences of
                                                                               myocardial and neuromuscular
                                                                               lesions.
----------------------------------------------------------------------------------------------------------------
Dermal (short- and intermediated-  POD = 5 mg/kg/day     LOC for MOE = 100..  2-generation reproduction toxicity
 term).                             Dermal absorption                          rat study.
                                    factor= 5%.                               Parental NOAEL = 2.5 mg/kg/day.
                                   UFA = 10x...........                       Parental LOAEL = 10 mg/kg/day
                                   UFH = 10x...........                        based on decreased body weight
                                   FQPA SF = 1x........                        and cardiomyopathy.
                                                                              Developmental NOAEL = 10 mg/kg/
                                                                               day.
                                                                              Developmental LOAEL = 40 mg/kg/day
                                                                               based on decreased mean pup
                                                                               weight during lactation days 4 to
                                                                               21.
                                                                              Reproductive NOAEL = 40 mg/kg/day.
                                                                              Reproductive LOAEL >40 mg/kg/day.
----------------------------------------------------------------------------------------------------------------

[[Page 42950]]

 
Inhalation (short- and             BMDL10 = 5.05 mg/     LOC for MOE = 30...  90-day inhalation toxicity study
 intermediated-term).               m\3\ mg/kg/day.                            in rats.
                                   UFA = 3x............                       BMD = 10.84 mg/m based on brain
                                   UFH = 10x...........                        cholinesterase inhibition in
                                   FQPA SF = 1x........                        males.
                                  -------------------------------------------
                                   Residential bystander HEC = 2.288 mg/m\3\
----------------------------------------------------------------------------------------------------------------
                                   Occupational Handler HEC = 9.609 mg/m\3\;
                                              HED = 0.91 mg/kg/day
----------------------------------------------------------------------------------------------------------------
Cancer (oral, dermal, inhalation)  Classified as ``Not Likely to be Carcinogenic to Humans.'' based on the lack
                                    of carcinogenic potential noted in the available studies.
----------------------------------------------------------------------------------------------------------------
FQPA SF = Food Quality Protection Act Safety Factor. LOAEL = lowest-observed-adverse-effect-level. LOC = level
  of concern. mg/kg/day = milligram per kilogram per day. MOE = margin of exposure. NOAEL = no-observed-adverse-
  effect-level. PAD = population adjusted dose (a = acute, c = chronic). POD = point of departure. RfD =
  reference dose (a = acute, c = chronic). UF = uncertainty factor. UFA = extrapolation from animal to human
  (interspecies). UFH = potential variation in sensitivity among members of the human population (intraspecies).
  UFL = use of a LOAEL to extrapolate a NOAEL. HEC = human equivalent concentration. HED = human equivalent
  dose.

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to EPTC, EPA considered exposure under the petitioned-for 
tolerances as well as all existing EPTC tolerances in 40 CFR 180.117. 
EPA assessed dietary exposures from EPTC in food as follows:
    i. Acute exposure. Quantitative acute dietary exposure and risk 
assessments are performed for a food-use pesticide, if a toxicological 
study has indicated the possibility of an effect of concern occurring 
as a result of a 1-day or single exposure. Such effects were identified 
for EPTC. In estimating acute dietary exposure, EPA used food 
consumption information from the United States Department of 
Agriculture (USDA) 2003-2008 National Health and Nutrition Examination 
Survey, What We Eat in America (NHANES/WWEIA). As to residue levels in 
food, EPA incorporated tolerance-level residues (adjusted for 
metabolites at 15X, to estimate the concentration of residues of 
toxicological concern), 100 percent crop treated (PCT) for all 
commodities, and default processing factors for all processed 
commodities except for potato granules (1.4X) and for sugar beets (4X).
    ii. Chronic exposure. In conducting the chronic dietary exposure 
assessment EPA used the same food consumption data and food residue 
level information as described above for acute dietary exposure.
    iii. Cancer. Based on the data summarized in Unit III.A., EPA has 
concluded that EPTC does not pose a cancer risk to humans. Therefore, a 
dietary exposure assessment for the purpose of assessing cancer risk is 
unnecessary.
    iv. Anticipated residue and percent crop treated (PCT) information. 
EPA did not use anticipated residue and/or PCT information in the 
dietary assessment for EPTC. Tolerance-level residues and 100 PCT were 
assumed for all food commodities.
    2. Dietary exposure from drinking water.
    The Agency used screening-level water exposure models in the 
dietary exposure analysis and risk assessment for EPTC in drinking 
water. These simulation models take into account data on the physical, 
chemical, and fate/transport characteristics of EPTC. Further 
information regarding EPA drinking water models used in pesticide 
exposure assessment can be found at https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/about-water-exposure-models-used-pesticide.
    Based on the Tier II Surface Water Concentration Calculator (SWCC) 
and Pesticide Root Zone Model Ground Water (PRZM-GW) model, the highest 
estimated drinking water concentration (EDWC) of EPTC for acute 
exposure is estimated to be 378 parts per billion (ppb) from ground 
water. For chronic exposure, the highest EDWC is estimated to be 335 
ppb from ground water. These EDWCs were directly entered into the 
dietary exposure models for both acute and chronic dietary risk 
assessments to assess the contribution from drinking water.
    3. From non-dietary exposure. The term ``residential exposure'' is 
used in this document to refer to non-occupational, non-dietary 
exposure (e.g., for lawn and garden pest control, indoor pest control, 
termiticides, and flea and tick control on pets). EPTC is not 
registered for any specific use patterns that would result in 
residential exposure.
    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.'' Although thiocarbamates 
share some chemical and toxicological characteristics, the 
toxicological database does not support a testable hypothesis for a 
common mechanism of action. Therefore, for the purposes of this 
tolerance action EPA has assumed that EPTC does not have a common 
mechanism of toxicity with other substances. For information regarding 
EPA's efforts to determine which chemicals have a common mechanism of 
toxicity and to evaluate the cumulative effects of such chemicals, see 
EPA's Web site at https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/cumulative-assessment-risk-pesticides.

D. Safety Factor for Infants and Children

    1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA 
shall apply an additional tenfold (10X) margin of safety for infants 
and children in the case of threshold effects to account for prenatal 
and postnatal toxicity and the completeness of the database on toxicity 
and exposure unless EPA determines

[[Page 42951]]

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 Safety Factor (SF). In applying this provision, 
EPA either retains the default value of 10X, or uses a different 
additional safety factor when reliable data available to EPA support 
the choice of a different factor.
    2. Prenatal and postnatal sensitivity. As discussed in Unit III.A., 
there was no qualitative or quantitative evidence of increased 
susceptibility to developing fetuses following in utero exposure to 
EPTC in the rabbit and rat developmental toxicity studies, or to 
offspring in the rat two-generation reproduction toxicity study. 
Although there was evidence of increased qualitative and quantitative 
susceptibility of offspring observed in the rat developmental 
neurotoxicity study. The effect on a marginal decreased absolute brain 
weight was observed only in male pups at one time-point on postnatal 
day 63. This effect was considered marginal and not robust since it had 
no dose-response, was not seen after perfusion, and had no 
corresponding necrosis. Therefore, there is low concern for 
susceptibility.
    3. Conclusion. EPA has determined that reliable data show the 
safety of infants and children would be adequately protected if the 
FQPA SF were reduced to 1X for assessing chronic dietary exposure but 
retained at 10X for assessing acute dietary exposure to account for 
extrapolating a NOAEL from a LOAEL. That decision is based on the 
following findings:
    i. The toxicity database for EPTC is complete and adequate to 
assess potential risk to infants and children.
    ii. There is indication that EPTC has toxic effects on the central 
and peripheral nervous systems. Neuronal necrosis and degeneration were 
observed in both the central and peripheral nervous systems of rats and 
dogs after acute and subchronic exposure. Treatment-related 
neuromuscular lesions were also observed in chronic rat and dog 
studies. In all of these studies hindquarter weakness was noted, and at 
necropsy evaluation atrophy and degeneration of the skeletal muscle was 
observed. In the dog study, the lesions were described as Wallerian-
type degeneration in the spinal cords and various peripheral nerves. 
AChE inhibition was also seen in a number of toxicology studies; 
however, no consistent pattern was witnessed across studies with 
respect to AChE inhibition between different species, length of 
treatment, or the type of AChE enzyme measured. All studies provide 
clear NOAELs and LOAELs, except the acute neurotoxicity study, and 
because the Agency is relying on that study for selection of the acute 
dietary exposure endpoint, EPA is retaining the 10X FQPA safety factor 
to account from the extrapolation from the LOAEL to the NOAEL.
    iii. There is no evidence that EPTC results in increased 
susceptibility in in utero rats or rabbits in the prenatal 
developmental studies or in young rats in the two-generation 
reproduction study. Evidence of increased susceptibility to offspring 
was observed in the developmental neurotoxicity study; however, this 
effect was considered marginal and not robust. Therefore, there is low 
concern for the susceptibility.
    iv. There are no residual uncertainties identified in the exposure 
databases. The dietary food exposure assessments were performed based 
on 100 PCT and tolerance-level residues. EPA made conservative 
(protective) assumptions in the ground and surface water modeling used 
to assess exposure to EPTC in drinking water. These assessments will 
not underestimate the exposure and risks posed by EPTC.

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. Using the exposure assumptions discussed in this 
unit for acute exposure, the acute dietary exposure from food and water 
to EPTC will occupy 46% of the aPAD for children between 1-2 years old, 
the population subgroup receiving the greatest exposure.
    2. Chronic risk. Using the exposure assumptions described in this 
unit for chronic exposure, EPA has concluded that chronic exposure to 
EPTC from food and water will utilize 65% of the cPAD for children 
between 1-2 years old, the population subgroup receiving the greatest 
exposure. There are no residential uses for EPTC.
    3. Short- and intermediate-term risks. Short- and intermediate-term 
aggregate exposures takes into account short-term (1 to 30 days) and 
intermediate-term (1 to 6 months) residential exposure plus chronic 
exposure from food and water (considered to be a background exposure 
level). Short- and intermediate-term adverse effects were identified; 
however, EPTC is not registered for any use patterns that would result 
in residential exposure. Because there is no residential exposure and 
chronic dietary exposure has already been assessed under the 
appropriately protective PADs (which is at least as protective as the 
PODs used to assess short- and intermediate-term risks), no further 
assessment of short- and intermediate-term risks are necessary, and EPA 
relies on the chronic dietary risk assessment for evaluating short- and 
intermediate-term risks for EPTC.
    4. Aggregate cancer risk for U.S. population. Based on the lack of 
evidence of carcinogenicity in two adequate rodent carcinogenicity 
studies, EPTC is not expected to pose a cancer risk to humans.
    5. Determination of safety. Based on these risk assessments, EPA 
concludes that there is a reasonable certainty that no harm will result 
to the general population, or to infants and children from aggregate 
exposure to EPTC residues.

IV. Other Considerations

A. Analytical Enforcement Methodology

    An adequate gas chromatography with micro coulometric (GLC/MC) 
detection method (RR-50) listed under Method A in the Pesticide 
Analytical Manual (PAM Volume II, Section 180.117; is available for 
enforcing tolerances of EPTC per se in plant commodities. For the 
determination of hydroxylated metabolites (free or conjugated) of EPTC 
in or on plant commodities, an adequate gas chromatography with 
nitrogen-phosphorus detection (GC/NPD) enforcement method (Method RR-
96-089B) is also available.
    These methods may be requested from: Chief, Analytical Chemistry 
Branch, Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD 
20755-5350; telephone number: (410) 305-2905; email address: 
[email protected].

B. International Residue Limits

    In making its tolerance decisions, EPA seeks to harmonize U.S. 
tolerances with international standards whenever possible, consistent 
with U.S. food safety standards and agricultural practices. EPA 
considers the international maximum residue limits (MRLs) established 
by the Codex Alimentarius Commission (Codex), as

[[Page 42952]]

required by FFDCA section 408(b)(4). The Codex Alimentarius is a joint 
United Nations Food and Agriculture Organization/World Health 
Organization food standards program, and it is recognized as an 
international food safety standards-setting organization in trade 
agreements to which the United States is a party. EPA may establish a 
tolerance that is different from a Codex MRL; however, FFDCA section 
408(b)(4) requires that EPA explain the reasons for departing from the 
Codex level. The Codex has not established any MRLs for EPTC.

C. Revisions to Petitioned-For Tolerances

    The Agency is establishing tolerances for the forage and hay forms 
of ``grass'' rather than ``grass grown for seed'' as requested to 
conform with its food and feed commodity vocabulary. Also, the Agency 
is establishing the tolerance levels to conform with its policy of 
significant figures.

V. Conclusion

    Therefore, tolerances are established for residues of EPTC, S-ethyl 
dipropylthiocarbamate, including its metabolites and degradates, in or 
on grass, forage at 0.60 ppm and grass, hay at 0.50.

VI. Statutory and Executive Order Reviews

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

VII. 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: August 16, 2017.
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.  180.117, add alphabetically the commodities to the table in 
paragraph (a) to read as follows:


Sec.  180.117  S-ethyl dipropylthiocarbamate; tolerances for residues.

    (a) * * *

------------------------------------------------------------------------
                                                             Parts per
                        Commodity                             million
------------------------------------------------------------------------
 
                                * * * * *
Grass, forage...........................................            0.60
Grass, hay..............................................            0.50
 
                                * * * * *
------------------------------------------------------------------------

* * * * *
[FR Doc. 2017-19452 Filed 9-12-17; 8:45 am]
BILLING CODE 6560-50-P



                                                           Federal Register / Vol. 82, No. 176 / Wednesday, September 13, 2017 / Rules and Regulations                                       42947

                                                 • Does not impose an information                     This action is not a ‘‘major rule’’ as                ENVIRONMENTAL PROTECTION
                                              collection burden under the provisions                  defined by 5 U.S.C. 804(2).                           AGENCY
                                              of the Paperwork Reduction Act (44
                                              U.S.C. 3501 et seq.);                                   C. Petitions for Judicial Review                      40 CFR Part 180
                                                 • Is certified as not having a                          Under section 307(b)(1) of the CAA,                [EPA–HQ–OPP–2015–0308; FRL–9965–71]
                                              significant economic impact on a
                                                                                                      petitions for judicial review of this
                                              substantial number of small entities                                                                          EPTC; Pesticide Tolerances
                                                                                                      action must be filed in the United States
                                              under the Regulatory Flexibility Act (5
                                                                                                      Court of Appeals for the appropriate                  AGENCY:  Environmental Protection
                                              U.S.C. 601 et seq.);
                                                 • Does not contain any unfunded                      circuit by July 11, 2016. Filing a petition           Agency (EPA).
                                              mandate or significantly or uniquely                    for reconsideration by the Administrator              ACTION: Final rule.
                                              affect small governments, as described                  of this final rule does not affect the
                                              in the Unfunded Mandates Reform Act                     finality of this action for the purposes of           SUMMARY:   This regulation establishes
                                              of 1995 (Pub. L. 104–4);                                judicial review nor does it extend the                tolerances for residues of EPTC, S-ethyl
                                                 • Does not have Federalism                           time within which a petition for judicial             dipropylthiocarbamate in or on grass,
                                              implications as specified in Executive                  review may be filed, and shall not                    forage at 0.60 ppm and grass, hay at 0.50
                                              Order 13132 (64 FR 43255, August 10,                    postpone the effectiveness of such rule               ppm. Gowan Company requested these
                                              1999);                                                  or action. This action may not be                     tolerances under the Federal Food,
                                                 • Is not an economically significant                                                                       Drug, and Cosmetic Act (FFDCA).
                                                                                                      challenged later in proceedings to
                                              regulatory action based on health or                                                                          DATES: This regulation is effective
                                                                                                      enforce its requirements. See section
                                              safety risks subject to Executive Order                 307(b)(2).                                            September 13, 2017. Objections and
                                              13045 (62 FR 19885, April 23, 1997);                                                                          requests for hearings must be received
                                                 • Is not a significant regulatory action             List of Subjects in 40 CFR Part 52                    on or before November 13, 2017, and
                                              subject to Executive Order 13211 (66 FR                                                                       must be filed in accordance with the
                                              28355, May 22, 2001);                                     Environmental protection, Air                       instructions provided in 40 CFR part
                                                 • Is not subject to requirements of                  pollution control, Attainment                         178 (see also Unit I.C. of the
                                              Section 12(d) of the National                           determination, Incorporation by                       SUPPLEMENTARY INFORMATION).
                                              Technology Transfer and Advancement                     reference, Sulfur dioxide.                            ADDRESSES: The docket for this action,
                                              Act of 1995 (15 U.S.C. 272 note) because                  Dated: August 24, 2017.                             identified by docket identification (ID)
                                              application of those requirements would                 Edward H. Chu,                                        number EPA–HQ–OPP–2015–0308, is
                                              be inconsistent with the CAA; and                                                                             available at https://www.regulations.gov
                                                 • Does not provide the EPA with the                  Acting Regional Administrator, Region 7.
                                                                                                                                                            or at the Office of Pesticide Programs
                                              discretionary authority to address, as                    For the reasons stated in the                       Regulatory Public Docket (OPP Docket)
                                              appropriate, disproportionate human                     preamble, EPA amends 40 CFR part 52                   in the Environmental Protection Agency
                                              health or environmental effects, using                                                                        Docket Center (EPA/DC), West William
                                                                                                      as set forth below:
                                              practicable and legally permissible                                                                           Jefferson Clinton Bldg., Rm. 3334, 1301
                                              methods, under Executive Order 12898                    PART 52—APPROVAL AND                                  Constitution Ave. NW., Washington, DC
                                              (59 FR 7629, February 16, 1994).                        PROMULGATION OF                                       20460–0001. The Public Reading Room
                                                 In addition, this action does not apply                                                                    is open from 8:30 a.m. to 4:30 p.m.,
                                                                                                      IMPLEMENTATION PLANS
                                              on any Indian reservation land or in any                                                                      Monday through Friday, excluding legal
                                              other area where the EPA or an Indian                                                                         holidays. The telephone number for the
                                              tribe has demonstrated that a tribe has                 ■ 1. The authority citation for part 52
                                                                                                      continues to read as follows:                         Public Reading Room is (202) 566–1744,
                                              jurisdiction. In those areas of Indian                                                                        and the telephone number for the OPP
                                              country, the rule does not have tribal                      Authority: 42 U.S.C. 7401 et seq.                 Docket is (703) 305–5805. Please review
                                              implications and will not impose                                                                              the visitor instructions and additional
                                              substantial direct costs on tribal                      Subpart AA—Missouri                                   information about the docket available
                                              governments or preempt tribal law as                                                                          at http://www.epa.gov/dockets.
                                              specified by Executive Order 13175 (65                  ■   2. Add § 52.1343 to read as follows:              FOR FURTHER INFORMATION CONTACT:
                                              FR 67249, November 9, 2000).                                                                                  Michael L. Goodis, Registration Division
                                                                                                      § 52.1343    Control strategy: Sulfur Dioxide.
                                              B. Congressional Review Act                                                                                   (7505P), Office of Pesticide Programs,
                                                                                                         (a) Determination of attainment. EPA               Environmental Protection Agency, 1200
                                                 The Congressional Review Act, 5                      has determined, as of September 13,
                                              U.S.C. 801 et seq., as added by the Small                                                                     Pennsylvania Ave. NW., Washington,
                                                                                                      2017, that the Jefferson County 2010                  DC 20460–0001; main telephone
                                              Business Regulatory Enforcement
                                                                                                      SO2 nonattainment has attained the                    number: (703) 305–7090; email address:
                                              Fairness Act of 1996, generally provides
                                              that before a rule may take effect, the                 2010 SO2 1-hr NAAQS. This                             RDFRNotices@epa.gov.
                                              agency promulgating the rule must                       determination suspends the                            SUPPLEMENTARY INFORMATION:
                                              submit a rule report, which includes a                  requirements for this area to submit an
                                                                                                                                                            I. General Information
                                              copy of the rule, to each House of the                  attainment demonstration, associated
                                              Congress and to the Comptroller General                 reasonably available control measures,                A. Does this action apply to me?
                                              of the United States. EPA will submit a                 reasonable further progress, contingency                 You may be potentially affected by
                                              report containing this action and other                 measures, and other plan elements                     this action if you are an agricultural
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                                              required information to the U.S. Senate,                related to attainment of the standards                producer, food manufacturer, or
                                              the U.S. House of Representatives, and                  for as long as the area continues to meet             pesticide manufacturer. The following
                                              the Comptroller General of the United                   the 2010 SO2 1-hr NAAQS.                              list of North American Industrial
                                              States prior to publication of the rule in                 (b) [Reserved]                                     Classification System (NAICS) codes is
                                              the Federal Register. A major rule                      [FR Doc. 2017–19339 Filed 9–12–17; 8:45 am]
                                                                                                                                                            not intended to be exhaustive, but rather
                                              cannot take effect until 60 days after it                                                                     provides a guide to help readers
                                                                                                      BILLING CODE 6560–50–P
                                              is published in the Federal Register.                                                                         determine whether this document


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                                              42948        Federal Register / Vol. 82, No. 176 / Wednesday, September 13, 2017 / Rules and Regulations

                                              applies to them. Potentially affected                   DC), (28221T), 1200 Pennsylvania Ave.                 and other relevant information in
                                              entities may include:                                   NW., Washington, DC 20460–0001.                       support of this action. EPA has
                                                • Crop production (NAICS code 111).                     • Hand Delivery: To make special                    sufficient data to assess the hazards of
                                                • Animal production (NAICS code                       arrangements for hand delivery or                     and to make a determination on
                                              112).                                                   delivery of boxed information, please                 aggregate exposure for EPTC, including
                                                • Food manufacturing (NAICS code                      follow the instructions at https://                   exposure resulting from the tolerances
                                              311).                                                   www.epa.gov/dockets/where-send-                       established by this action. EPA’s
                                                • Pesticide manufacturing (NAICS                      comments-epa-dockets.                                 assessment of exposures and risks
                                              code 32532).                                            Additional instructions on commenting                 associated with EPTC follows.
                                                                                                      or visiting the docket, along with more
                                              B. How can I get electronic access to                   information about dockets generally, is               A. Toxicological Profile
                                              other related information?                              available at https://www.epa.gov/                        EPA has evaluated the available
                                                 You may access a frequently updated                  dockets.                                              toxicity data and considered its validity,
                                              electronic version of EPA’s tolerance                                                                         completeness, and reliability as well as
                                                                                                      II. Summary of Petitioned-For
                                                                                                                                                            the relationship of the results of the
                                              regulations at 40 CFR part 180 through                  Tolerances
                                                                                                                                                            studies to human risk. EPA has also
                                              the Government Printing Office’s e-CFR                     In the Federal Register of Friday, July            considered available information
                                              site at http://www.ecfr.gov/cgi-bin/text-               17, 2015 (80 FR 42462) (FRL–9929–13),                 concerning the variability of the
                                              idx?&c=ecfr&tpl=/ecfrbrowse/Title40/                    EPA issued a document pursuant to                     sensitivities of major identifiable
                                              40tab_02.tpl. To access the OCSPP test                  FFDCA section 408(d)(3), 21 U.S.C.                    subgroups of consumers, including
                                              guidelines referenced in this document                  346a(d)(3), announcing the filing of a                infants and children.
                                              electronically, please go to https://                   pesticide petition (PP 5F8355) by                        On an acute exposure basis, EPTC is
                                              www.epa.gov/test-guidelines-pesticides-                 Gowan Company, P.O. Box 5569, Yuma,                   highly toxic via inhalation and is
                                              and-toxic-substances.                                   AZ 85366. The petition requested that                 moderately toxic via the oral and dermal
                                              C. How can I file an objection or hearing               40 CFR part 180 be amended by                         routes of exposure. It is slightly
                                              request?                                                establishing tolerances for residues of               irritating to eyes and minimally-
                                                                                                      the herbicide EPTC, S-ethyl                           irritating to skin. It is a weak skin
                                                Under FFDCA section 408(g), 21                        dipropylthiocarbamate, in or on grass                 sensitizer.
                                              U.S.C. 346a, any person may file an                     grown for seed, forage at 0.6 parts per                  EPTC is an S-alkylthiocarbamate,
                                              objection to any aspect of this regulation              million (ppm) and grass grown for seed,               which consistently produced
                                              and may also request a hearing on those                 hay at 0.5 ppm. That document                         cardiomyopathy and neuronal cell
                                              objections. You must file your objection                referenced a summary of the petition                  necrosis in studies of varying length of
                                              or request a hearing on this regulation                 prepared by Gowan Company, the                        treatment and in different species.
                                              in accordance with the instructions                     registrant, which is available in the                 Cardiotoxicity was observed in
                                              provided in 40 CFR part 178. To ensure                  docket, https://www.regulations.gov.                  subchronic and long-term studies, and
                                              proper receipt by EPA, you must                         There were no comments received in                    in general, the severity and incidence of
                                              identify docket ID number EPA–HQ–                       response to the notice of filing.                     the lesion increased with increasing
                                              OPP–2015–0308 in the subject line on                                                                          doses of EPTC. In 90-day feeding and
                                              the first page of your submission. All                  III. Aggregate Risk Assessment and                    inhalation studies and in two chronic
                                              objections and requests for a hearing                   Determination of Safety                               feeding/oncogenicity studies,
                                              must be in writing, and must be                            Section 408(b)(2)(A)(i) of FFDCA                   histopathological evaluation revealed
                                              received by the Hearing Clerk on or                     allows EPA to establish a tolerance (the              myocardial degeneration. Myocardial
                                              before November 13, 2017. Addresses                     legal limit for a pesticide chemical                  degeneration in adult rats was also
                                              for mail and hand delivery of objections                residue in or on a food) only if EPA                  observed in two separate two-generation
                                              and hearing requests are provided in 40                 determines that the tolerance is ‘‘safe.’’            reproduction studies. In two chronic
                                              CFR 178.25(b).                                          Section 408(b)(2)(A)(ii) of FFDCA                     dog studies, degenerative changes in the
                                                In addition to filing an objection or                 defines ‘‘safe’’ to mean that ‘‘there is a            cardiac muscle were observed when
                                              hearing request with the Hearing Clerk                  reasonable certainty that no harm will                EPTC was administered in a capsule,
                                              as described in 40 CFR part 178, please                 result from aggregate exposure to the                 but not when administered (at
                                              submit a copy of the filing (excluding                  pesticide chemical residue, including                 comparable doses) in the diet. In both
                                              any Confidential Business Information                   all anticipated dietary exposures and all             dog studies, electrocardiograms were
                                              (CBI)) for inclusion in the public docket.              other exposures for which there is                    taken, but only one high-dose male in
                                              Information not marked confidential                     reliable information.’’ This includes                 the capsule study had changes which
                                              pursuant to 40 CFR part 2 may be                        exposure through drinking water and in                were described as ‘‘potentially’’
                                              disclosed publicly by EPA without prior                 residential settings, but does not include            treatment-related.
                                              notice. Submit the non-CBI copy of your                 occupational exposure. Section                           EPTC, as well as other thiocarbamates
                                              objection or hearing request, identified                408(b)(2)(C) of FFDCA requires EPA to                 (molinate, cycloate, pebulate, vernolate
                                              by docket ID number EPA–HQ–OPP–                         give special consideration to exposure                and butylate), have toxic effects on the
                                              2015–0308, by one of the following                      of infants and children to the pesticide              central and peripheral nervous systems.
                                              methods:                                                chemical residue in establishing a                    With EPTC, there was an increased
                                                • Federal eRulemaking Portal:                         tolerance and to ‘‘ensure that there is a             incidence and severity of neuronal
                                              https://www.regulations.gov. Follow the                 reasonable certainty that no harm will                necrosis/degeneration in both the
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                                              online instructions for submitting                      result to infants and children from                   central and peripheral nervous systems
                                              comments. Do not submit electronically                  aggregate exposure to the pesticide                   of rats and dogs. In the rat neurotoxicity
                                              any information you consider to be CBI                  chemical residue. . . .’’                             studies, dose-related increases in the
                                              or other information whose disclosure is                   Consistent with FFDCA section                      incidence of neuronal necrosis were
                                              restricted by statute.                                  408(b)(2)(D), and the factors specified in            observed in the brains after acute and
                                                • Mail: OPP Docket, Environmental                     FFDCA section 408(b)(2)(D), EPA has                   subchronic exposure to EPTC. In the rat
                                              Protection Agency Docket Center (EPA/                   reviewed the available scientific data                developmental neurotoxicity study, a


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                                                           Federal Register / Vol. 82, No. 176 / Wednesday, September 13, 2017 / Rules and Regulations                                           42949

                                              marginal decrease in absolute (not                      than where cardiac/neuronal effects                   evaluating the risk posed by human
                                              relative) pup brain weight (4–6%) was                   were observed.                                        exposure to the pesticide. For hazards
                                              observed in only one sex (male pups)                       There is no evidence of increased                  that have a threshold below which there
                                              and at only one time point (PND63).                     susceptibility following in utero                     is no appreciable risk, the toxicological
                                              Furthermore, this marginal effect had no                exposure to EPTC in either the rat or                 POD is used as the basis for derivation
                                              dose-response, was not seen after                       rabbit developmental toxicity study or                of reference values for risk assessment.
                                              perfusion, and had no corresponding                     following in utero and/or postnatal                   PODs are developed based on a careful
                                              necrosis. Therefore, this effect was                    exposure in the 2-generation                          analysis of the doses in each
                                              considered marginal at best and not                     reproduction study in rats. EPTC is                   toxicological study to determine the
                                              robust. In both of the combined chronic                 classified as ‘‘Not Likely to be                      dose at which no adverse effects are
                                              toxicity/carcinogenicity studies in the                 Carcinogenic to Humans.’’ This is based               observed (the NOAEL) and the lowest
                                              rat and in the chronic (capsule) study in               on the lack of carcinogenic potential                 dose at which adverse effects of concern
                                              the dog, treatment-related                              noted in the available studies. There are             are identified (the LOAEL). Uncertainty/
                                              neuromuscular lesions were observed.                    no concerns for mutagenicity or                       safety factors are used in conjunction
                                              In all of these studies, hindquarter                    clastogenicity. There is also no concern              with the POD to calculate a safe
                                              weakness with corresponding                             for immunotoxicity.                                   exposure level—generally referred to as
                                              histopathology findings of atrophy and                     Specific information on the studies                a population-adjusted dose (PAD) or a
                                              degeneration of the skeletal muscle were                received and the nature of the adverse                reference dose (RfD)—and a safe margin
                                              observed. In the dog study, the lesions                 effects caused by EPTC as well as the                 of exposure (MOE). For non-threshold
                                              were described as Wallerian-type                        no-observed-adverse-effect-level                      risks, the Agency assumes that any
                                              degeneration in the spinal cords and                    (NOAEL) and the lowest-observed-                      amount of exposure will lead to some
                                              various peripheral nerves.                              adverse-effect-level (LOAEL) from the                 degree of risk. Thus, the Agency
                                                EPTC is a reversible                                  toxicity studies scan be found at https://            estimates risk in terms of the probability
                                              acetylcholinesterase (AChE) inhibitor.                  www.regulations.gov in document                       of an occurrence of the adverse effect
                                              Toxicology studies with EPTC did not                    EPTC: Human Health Risk Assessment                    expected in a lifetime. For more
                                              show any consistent pattern of AChE-                    for the Proposed Section 3 Registration               information on the general principles
                                              inhibition between different species,                   for Use on Grasses Grown for Seed                     EPA uses in risk characterization and a
                                              length of treatment, or the type of AChE                Production in docket ID number EPA–                   complete description of the risk
                                              enzyme measured. In some studies,                       HQ–OPP–2015–0308.                                     assessment process, see https://
                                              brain AChE activity was inhibited                                                                             www.epa.gov/pesticide-science-and-
                                              without any effect on either plasma or                  B. Toxicological Points of Departure/                 assessing-pesticide-risks/assessing-
                                              erythrocyte AChE activities. In other                   Levels of Concern                                     human-health-risk-pesticides.
                                              studies, erythrocyte AChE was inhibited                   Once a pesticide’s toxicological                       A summary of the toxicological
                                              with no inhibition of either plasma or                  profile is determined, EPA identifies                 endpoints for EPTC used for human risk
                                              brain AChE. AChE-inhibition was                         toxicological points of departure (POD)               assessment is shown in Table 1 of this
                                              observed at comparable or higher doses                  and levels of concern to use in                       unit.

                                                     TABLE 1—SUMMARY OF TOXICOLOGICAL DOSES AND ENDPOINTS FOR EPTC FOR USE IN HUMAN HEALTH RISK
                                                                                            ASSESSMENT
                                                                                       Point of departure        RfD, PAD, LOC for
                                                     Exposure/scenario                  and uncertainty/                                                    Study and toxicological effects
                                                                                                                  risk assessment
                                                                                         safety factors

                                              Acute dietary (all populations     LOAEL = 200 mg/kg/             aRfD/aPAD = 0.2            Acute neurotoxicity rat study.
                                                including infants and children).   day.                           mg/kg/day.               NOAEL not established in males.
                                                                                 UFA = 10x                                                 LOAEL = 200 mg/kg/day based on neuronal cell necrosis in the
                                                                                 UFH = 10x                                                   brain in males.
                                                                                 FQPA SF/UFL = 10x

                                              Chronic dietary (all populations   POD = 5 mg/kg/day              cRfD/cPAD = 0.05           Co-critical, chronic/carcinogenicity and 2-generation reproduc-
                                                including infants and children). UFA = 10x                        mg/kg/day.                 tion in rats.
                                                                                 UFH = 10x
                                                                                 FQPA SF = 1x

                                              Incidental oral (short- and inter-     POD = 5 mg/kg/day          LOC for MOE = 100          Chronic toxicity/carcinogenicity rat study.
                                                mediate-term).                       UFA = 10x                                             NOAEL = 5 mg/kg/day.
                                                                                     UFH = 10x                                             LOAEL = 25 mg/kg/day based on decreased body weight and
                                                                                     FQPA SF = 1x                                            increased incidences of myocardial and neuromuscular le-
                                                                                                                                             sions.

                                              Dermal (short- and intermedi-          POD = 5 mg/kg/day          LOC for MOE = 100          2-generation reproduction toxicity rat study.
                                                ated-term).                           Dermal absorption                                    Parental NOAEL = 2.5 mg/kg/day.
                                                                                      factor= 5%.                                          Parental LOAEL = 10 mg/kg/day based on decreased body
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                                                                                     UFA = 10x                                               weight and cardiomyopathy.
                                                                                     UFH = 10x                                             Developmental NOAEL = 10 mg/kg/day.
                                                                                     FQPA SF = 1x                                          Developmental LOAEL = 40 mg/kg/day based on decreased
                                                                                                                                             mean pup weight during lactation days 4 to 21.
                                                                                                                                           Reproductive NOAEL = 40 mg/kg/day.
                                                                                                                                           Reproductive LOAEL >40 mg/kg/day.




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                                              42950        Federal Register / Vol. 82, No. 176 / Wednesday, September 13, 2017 / Rules and Regulations

                                                     TABLE 1—SUMMARY OF TOXICOLOGICAL DOSES AND ENDPOINTS FOR EPTC FOR USE IN HUMAN HEALTH RISK
                                                                                       ASSESSMENT—Continued
                                                                                       Point of departure        RfD, PAD, LOC for
                                                     Exposure/scenario                  and uncertainty/                                                    Study and toxicological effects
                                                                                                                  risk assessment
                                                                                         safety factors

                                              Inhalation (short- and intermedi-      BMDL10 = 5.05 mg/          LOC for MOE = 30 ..        90-day inhalation toxicity study in rats.
                                                ated-term).                           m3 mg/kg/day.                                        BMD10 = 10.84 mg/m3 based on brain cholinesterase inhibition
                                                                                     UFA = 3x                                                in males.
                                                                                     UFH = 10x
                                                                                     FQPA SF = 1x

                                                                                      Residential bystander HEC = 2.288 mg/m3

                                                                                      Occupational Handler HEC = 9.609 mg/m3;
                                                                                               HED = 0.91 mg/kg/day

                                              Cancer (oral, dermal, inhala-          Classified as ‘‘Not Likely to be Carcinogenic to Humans.’’ based on the lack of carcinogenic potential noted in
                                                tion).                               the available studies.
                                                FQPA SF = Food Quality Protection Act Safety Factor. LOAEL = lowest-observed-adverse-effect-level. LOC = level of concern. mg/kg/day =
                                              milligram per kilogram per day. MOE = margin of exposure. NOAEL = no-observed-adverse-effect-level. PAD = population adjusted dose (a =
                                              acute, c = chronic). POD = point of departure. RfD = reference dose (a = acute, c = chronic). UF = uncertainty factor. UFA = extrapolation from
                                              animal to human (interspecies). UFH = potential variation in sensitivity among members of the human population (intraspecies). UFL = use of a
                                              LOAEL to extrapolate a NOAEL. HEC = human equivalent concentration. HED = human equivalent dose.


                                              C. Exposure Assessment                                  purpose of assessing cancer risk is                   indoor pest control, termiticides, and
                                                 1. Dietary exposure from food and                    unnecessary.                                          flea and tick control on pets). EPTC is
                                              feed uses. In evaluating dietary                           iv. Anticipated residue and percent                not registered for any specific use
                                              exposure to EPTC, EPA considered                        crop treated (PCT) information. EPA did               patterns that would result in residential
                                              exposure under the petitioned-for                       not use anticipated residue and/or PCT                exposure.
                                              tolerances as well as all existing EPTC                 information in the dietary assessment                    4. Cumulative effects from substances
                                              tolerances in 40 CFR 180.117. EPA                       for EPTC. Tolerance-level residues and                with a common mechanism of toxicity.
                                              assessed dietary exposures from EPTC                    100 PCT were assumed for all food                     Section 408(b)(2)(D)(v) of FFDCA
                                              in food as follows:                                     commodities.                                          requires that, when considering whether
                                                 i. Acute exposure. Quantitative acute                   2. Dietary exposure from drinking                  to establish, modify, or revoke a
                                              dietary exposure and risk assessments                   water.                                                tolerance, the Agency consider
                                              are performed for a food-use pesticide,                    The Agency used screening-level                    ‘‘available information’’ concerning the
                                              if a toxicological study has indicated the              water exposure models in the dietary                  cumulative effects of a particular
                                              possibility of an effect of concern                     exposure analysis and risk assessment                 pesticide’s residues and ‘‘other
                                              occurring as a result of a 1-day or single              for EPTC in drinking water. These                     substances that have a common
                                              exposure. Such effects were identified                  simulation models take into account                   mechanism of toxicity.’’ Although
                                              for EPTC. In estimating acute dietary                   data on the physical, chemical, and fate/             thiocarbamates share some chemical
                                              exposure, EPA used food consumption                     transport characteristics of EPTC.                    and toxicological characteristics, the
                                              information from the United States                      Further information regarding EPA                     toxicological database does not support
                                              Department of Agriculture (USDA)                        drinking water models used in pesticide               a testable hypothesis for a common
                                              2003–2008 National Health and                           exposure assessment can be found at                   mechanism of action. Therefore, for the
                                              Nutrition Examination Survey, What We                   https://www.epa.gov/pesticide-science-                purposes of this tolerance action EPA
                                              Eat in America (NHANES/WWEIA). As                       and-assessing-pesticide-risks/about-                  has assumed that EPTC does not have a
                                              to residue levels in food, EPA                          water-exposure-models-used-pesticide.                 common mechanism of toxicity with
                                              incorporated tolerance-level residues                      Based on the Tier II Surface Water                 other substances. For information
                                              (adjusted for metabolites at 15X, to                    Concentration Calculator (SWCC) and                   regarding EPA’s efforts to determine
                                              estimate the concentration of residues of               Pesticide Root Zone Model Ground                      which chemicals have a common
                                              toxicological concern), 100 percent crop                Water (PRZM–GW) model, the highest                    mechanism of toxicity and to evaluate
                                              treated (PCT) for all commodities, and                  estimated drinking water concentration                the cumulative effects of such
                                              default processing factors for all                      (EDWC) of EPTC for acute exposure is                  chemicals, see EPA’s Web site at https://
                                              processed commodities except for                        estimated to be 378 parts per billion                 www.epa.gov/pesticide-science-and-
                                              potato granules (1.4X) and for sugar                    (ppb) from ground water. For chronic                  assessing-pesticide-risks/cumulative-
                                              beets (4X).                                             exposure, the highest EDWC is                         assessment-risk-pesticides.
                                                 ii. Chronic exposure. In conducting                  estimated to be 335 ppb from ground
                                              the chronic dietary exposure assessment                 water. These EDWCs were directly                      D. Safety Factor for Infants and
                                              EPA used the same food consumption                      entered into the dietary exposure                     Children
                                              data and food residue level information                 models for both acute and chronic                       1. In general. Section 408(b)(2)(C) of
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                                              as described above for acute dietary                    dietary risk assessments to assess the                FFDCA provides that EPA shall apply
                                              exposure.                                               contribution from drinking water.                     an additional tenfold (10X) margin of
                                                 iii. Cancer. Based on the data                          3. From non-dietary exposure. The                  safety for infants and children in the
                                              summarized in Unit III.A., EPA has                      term ‘‘residential exposure’’ is used in              case of threshold effects to account for
                                              concluded that EPTC does not pose a                     this document to refer to non-                        prenatal and postnatal toxicity and the
                                              cancer risk to humans. Therefore, a                     occupational, non-dietary exposure                    completeness of the database on toxicity
                                              dietary exposure assessment for the                     (e.g., for lawn and garden pest control,              and exposure unless EPA determines


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                                                           Federal Register / Vol. 82, No. 176 / Wednesday, September 13, 2017 / Rules and Regulations                                        42951

                                              based on reliable data that a different                 provide clear NOAELs and LOAELs,                      to 6 months) residential exposure plus
                                              margin of safety will be safe for infants               except the acute neurotoxicity study,                 chronic exposure from food and water
                                              and children. This additional margin of                 and because the Agency is relying on                  (considered to be a background
                                              safety is commonly referred to as the                   that study for selection of the acute                 exposure level). Short- and
                                              FQPA Safety Factor (SF). In applying                    dietary exposure endpoint, EPA is                     intermediate-term adverse effects were
                                              this provision, EPA either retains the                  retaining the 10X FQPA safety factor to               identified; however, EPTC is not
                                              default value of 10X, or uses a different               account from the extrapolation from the               registered for any use patterns that
                                              additional safety factor when reliable                  LOAEL to the NOAEL.                                   would result in residential exposure.
                                              data available to EPA support the choice                   iii. There is no evidence that EPTC                Because there is no residential exposure
                                              of a different factor.                                  results in increased susceptibility in in             and chronic dietary exposure has
                                                 2. Prenatal and postnatal sensitivity.               utero rats or rabbits in the prenatal                 already been assessed under the
                                              As discussed in Unit III.A., there was no               developmental studies or in young rats                appropriately protective PADs (which is
                                              qualitative or quantitative evidence of                 in the two-generation reproduction                    at least as protective as the PODs used
                                              increased susceptibility to developing                  study. Evidence of increased                          to assess short- and intermediate-term
                                              fetuses following in utero exposure to                  susceptibility to offspring was observed              risks), no further assessment of short-
                                              EPTC in the rabbit and rat                              in the developmental neurotoxicity                    and intermediate-term risks are
                                              developmental toxicity studies, or to                   study; however, this effect was                       necessary, and EPA relies on the
                                              offspring in the rat two-generation                     considered marginal and not robust.                   chronic dietary risk assessment for
                                              reproduction toxicity study. Although                   Therefore, there is low concern for the               evaluating short- and intermediate-term
                                              there was evidence of increased                         susceptibility.                                       risks for EPTC.
                                              qualitative and quantitative                               iv. There are no residual uncertainties               4. Aggregate cancer risk for U.S.
                                              susceptibility of offspring observed in                 identified in the exposure databases.                 population. Based on the lack of
                                              the rat developmental neurotoxicity                     The dietary food exposure assessments                 evidence of carcinogenicity in two
                                              study. The effect on a marginal                         were performed based on 100 PCT and                   adequate rodent carcinogenicity studies,
                                              decreased absolute brain weight was                     tolerance-level residues. EPA made                    EPTC is not expected to pose a cancer
                                              observed only in male pups at one time-                 conservative (protective) assumptions in              risk to humans.
                                              point on postnatal day 63. This effect                  the ground and surface water modeling                    5. Determination of safety. Based on
                                              was considered marginal and not robust                  used to assess exposure to EPTC in                    these risk assessments, EPA concludes
                                              since it had no dose-response, was not                  drinking water. These assessments will                that there is a reasonable certainty that
                                              seen after perfusion, and had no                        not underestimate the exposure and                    no harm will result to the general
                                              corresponding necrosis. Therefore, there                risks posed by EPTC.                                  population, or to infants and children
                                              is low concern for susceptibility.                                                                            from aggregate exposure to EPTC
                                                 3. Conclusion. EPA has determined                    E. Aggregate Risks and Determination of
                                                                                                      Safety                                                residues.
                                              that reliable data show the safety of
                                              infants and children would be                              EPA determines whether acute and                   IV. Other Considerations
                                              adequately protected if the FQPA SF                     chronic dietary pesticide exposures are
                                                                                                                                                            A. Analytical Enforcement Methodology
                                              were reduced to 1X for assessing                        safe by comparing aggregate exposure
                                              chronic dietary exposure but retained at                estimates to the acute PAD (aPAD) and                    An adequate gas chromatography with
                                              10X for assessing acute dietary exposure                chronic PAD (cPAD). For linear cancer                 micro coulometric (GLC/MC) detection
                                              to account for extrapolating a NOAEL                    risks, EPA calculates the lifetime                    method (RR–50) listed under Method A
                                              from a LOAEL. That decision is based                    probability of acquiring cancer given the             in the Pesticide Analytical Manual
                                              on the following findings:                              estimated aggregate exposure. Short-,                 (PAM Volume II, Section 180.117; is
                                                 i. The toxicity database for EPTC is                 intermediate-, and chronic-term risks                 available for enforcing tolerances of
                                              complete and adequate to assess                         are evaluated by comparing the                        EPTC per se in plant commodities. For
                                              potential risk to infants and children.                 estimated aggregate food, water, and                  the determination of hydroxylated
                                                 ii. There is indication that EPTC has                residential exposure to the appropriate               metabolites (free or conjugated) of EPTC
                                              toxic effects on the central and                        PODs to ensure that an adequate MOE                   in or on plant commodities, an adequate
                                              peripheral nervous systems. Neuronal                    exists.                                               gas chromatography with nitrogen-
                                              necrosis and degeneration were                             1. Acute risk. Using the exposure                  phosphorus detection (GC/NPD)
                                              observed in both the central and                        assumptions discussed in this unit for                enforcement method (Method RR–96–
                                              peripheral nervous systems of rats and                  acute exposure, the acute dietary                     089B) is also available.
                                              dogs after acute and subchronic                         exposure from food and water to EPTC                     These methods may be requested
                                              exposure. Treatment-related                             will occupy 46% of the aPAD for                       from: Chief, Analytical Chemistry
                                              neuromuscular lesions were also                         children between 1–2 years old, the                   Branch, Environmental Science Center,
                                              observed in chronic rat and dog studies.                population subgroup receiving the                     701 Mapes Rd., Ft. Meade, MD 20755–
                                              In all of these studies hindquarter                     greatest exposure.                                    5350; telephone number: (410) 305–
                                              weakness was noted, and at necropsy                        2. Chronic risk. Using the exposure                2905; email address: residuemethods@
                                              evaluation atrophy and degeneration of                  assumptions described in this unit for                epa.gov.
                                              the skeletal muscle was observed. In the                chronic exposure, EPA has concluded
                                              dog study, the lesions were described as                                                                      B. International Residue Limits
                                                                                                      that chronic exposure to EPTC from
                                              Wallerian-type degeneration in the                      food and water will utilize 65% of the                  In making its tolerance decisions, EPA
                                              spinal cords and various peripheral                     cPAD for children between 1–2 years                   seeks to harmonize U.S. tolerances with
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                                              nerves. AChE inhibition was also seen                   old, the population subgroup receiving                international standards whenever
                                              in a number of toxicology studies;                      the greatest exposure. There are no                   possible, consistent with U.S. food
                                              however, no consistent pattern was                      residential uses for EPTC.                            safety standards and agricultural
                                              witnessed across studies with respect to                   3. Short- and intermediate-term risks.             practices. EPA considers the
                                              AChE inhibition between different                       Short- and intermediate-term aggregate                international maximum residue limits
                                              species, length of treatment, or the type               exposures takes into account short-term               (MRLs) established by the Codex
                                              of AChE enzyme measured. All studies                    (1 to 30 days) and intermediate-term (1               Alimentarius Commission (Codex), as


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                                              42952        Federal Register / Vol. 82, No. 176 / Wednesday, September 13, 2017 / Rules and Regulations

                                              required by FFDCA section 408(b)(4).                    April 23, 1997). This action does not                 Transfer and Advancement Act
                                              The Codex Alimentarius is a joint                       contain any information collections                   (NTTAA) (15 U.S.C. 272 note).
                                              United Nations Food and Agriculture                     subject to OMB approval under the
                                                                                                                                                            VII. Congressional Review Act
                                              Organization/World Health                               Paperwork Reduction Act (PRA) (44
                                              Organization food standards program,                    U.S.C. 3501 et seq.), nor does it require               Pursuant to the Congressional Review
                                              and it is recognized as an international                any special considerations under                      Act (5 U.S.C. 801 et seq.), EPA will
                                              food safety standards-setting                           Executive Order 12898, entitled                       submit a report containing this rule and
                                              organization in trade agreements to                     ‘‘Federal Actions to Address                          other required information to the U.S.
                                              which the United States is a party. EPA                 Environmental Justice in Minority                     Senate, the U.S. House of
                                              may establish a tolerance that is                       Populations and Low-Income                            Representatives, and the Comptroller
                                              different from a Codex MRL; however,                    Populations’’ (59 FR 7629, February 16,               General of the United States prior to
                                              FFDCA section 408(b)(4) requires that                   1994).                                                publication of the rule in the Federal
                                              EPA explain the reasons for departing                      Since tolerances and exemptions that               Register. This action is not a ‘‘major
                                              from the Codex level. The Codex has not                 are established on the basis of a petition            rule’’ as defined by 5 U.S.C. 804(2).
                                              established any MRLs for EPTC.                          under FFDCA section 408(d), such as
                                                                                                      the tolerances in this final rule, do not             List of Subjects in 40 CFR Part 180
                                              C. Revisions to Petitioned-For
                                              Tolerances                                              require the issuance of a proposed rule,                Environmental protection,
                                                                                                      the requirements of the Regulatory                    Administrative practice and procedure,
                                                The Agency is establishing tolerances                 Flexibility Act (RFA) (5 U.S.C. 601 et                Agricultural commodities, Pesticides
                                              for the forage and hay forms of ‘‘grass’’               seq.), do not apply.                                  and pests, Reporting and recordkeeping
                                              rather than ‘‘grass grown for seed’’ as                    This action directly regulates growers,            requirements.
                                              requested to conform with its food and                  food processors, food handlers, and food
                                              feed commodity vocabulary. Also, the                                                                            Dated: August 16, 2017.
                                                                                                      retailers, not States or tribes, nor does
                                              Agency is establishing the tolerance                    this action alter the relationships or                Michael L. Goodis,
                                              levels to conform with its policy of                    distribution of power and                             Director, Registration Division, Office of
                                              significant figures.                                    responsibilities established by Congress              Pesticide Programs.
                                              V. Conclusion                                           in the preemption provisions of FFDCA                   Therefore, 40 CFR chapter I is
                                                 Therefore, tolerances are established                section 408(n)(4). As such, the Agency                amended as follows:
                                              for residues of EPTC, S-ethyl                           has determined that this action will not
                                              dipropylthiocarbamate, including its                    have a substantial direct effect on States            PART 180—[AMENDED]
                                              metabolites and degradates, in or on                    or tribal governments, on the
                                              grass, forage at 0.60 ppm and grass, hay                relationship between the national                     ■ 1. The authority citation for part 180
                                              at 0.50.                                                government and the States or tribal                   continues to read as follows:
                                                                                                      governments, or on the distribution of                    Authority: 21 U.S.C. 321(q), 346a and 371.
                                              VI. Statutory and Executive Order                       power and responsibilities among the
                                              Reviews                                                 various levels of government or between               ■ 2. In § 180.117, add alphabetically the
                                                This action establishes tolerances                    the Federal Government and Indian                     commodities to the table in paragraph
                                              under FFDCA section 408(d) in                           tribes. Thus, the Agency has determined               (a) to read as follows:
                                              response to a petition submitted to the                 that Executive Order 13132, entitled
                                              Agency. The Office of Management and                    ‘‘Federalism’’ (64 FR 43255, August 10,               § 180.117 S-ethyl dipropylthiocarbamate;
                                                                                                      1999) and Executive Order 13175,                      tolerances for residues.
                                              Budget (OMB) has exempted these types
                                              of actions from review under Executive                  entitled ‘‘Consultation and Coordination                  (a) * * *
                                              Order 12866, entitled ‘‘Regulatory                      with Indian Tribal Governments’’ (65 FR
                                              Planning and Review’’ (58 FR 51735,                     67249, November 9, 2000) do not apply                              Commodity                        Parts per
                                              October 4, 1993). Because this action                   to this action. In addition, this action                                                             million
                                              has been exempted from review under                     does not impose any enforceable duty or
                                              Executive Order 12866, this action is                   contain any unfunded mandate as                          *         *              *             *          *
                                              not subject to Executive Order 13211,                   described under Title II of the Unfunded              Grass, forage ........................               0.60
                                              entitled ‘‘Actions Concerning                           Mandates Reform Act (UMRA) (2 U.S.C.                  Grass, hay ............................              0.50
                                              Regulations That Significantly Affect                   1501 et seq.).
                                              Energy Supply, Distribution, or Use’’ (66                  This action does not involve any                        *           *            *           *          *
                                              FR 28355, May 22, 2001) or Executive                    technical standards that would require
                                              Order 13045, entitled ‘‘Protection of                   Agency consideration of voluntary                     *        *      *        *        *
                                              Children from Environmental Health                      consensus standards pursuant to section               [FR Doc. 2017–19452 Filed 9–12–17; 8:45 am]
                                              Risks and Safety Risks’’ (62 FR 19885,                  12(d) of the National Technology                      BILLING CODE 6560–50–P
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Document Created: 2017-09-13 00:09:00
Document Modified: 2017-09-13 00:09:00
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 September 13, 2017. Objections and requests for hearings must be received on or before November 13, 2017, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).
ContactMichael L. Goodis, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460-
FR Citation82 FR 42947 
CFR AssociatedEnvironmental Protection; Administrative Practice and Procedure; Agricultural Commodities; Pesticides and Pests and Reporting and Recordkeeping Requirements

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