83_FR_7008 83 FR 6975 - Pendimethalin; Pesticide Tolerances

83 FR 6975 - Pendimethalin; Pesticide Tolerances

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 83, Issue 33 (February 16, 2018)

Page Range6975-6981
FR Document2018-03277

This regulation amends the tolerances for residues of pendimethalin in or on alfalfa, forage and alfalfa, hay. BASF Corporation requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).

Federal Register, Volume 83 Issue 33 (Friday, February 16, 2018)
[Federal Register Volume 83, Number 33 (Friday, February 16, 2018)]
[Rules and Regulations]
[Pages 6975-6981]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-03277]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2014-0247; FRL-9973-03]


Pendimethalin; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This regulation amends the tolerances for residues of 
pendimethalin in or on alfalfa, forage and alfalfa, hay. BASF 
Corporation requested these tolerances under the Federal Food, Drug, 
and Cosmetic Act (FFDCA).

DATES: This regulation is effective February 16, 2018. Objections and 
requests for hearings must be received on or before April 17, 2018, and 
must be filed in accordance with the instructions provided in 40 CFR 
part

[[Page 6976]]

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-2014-0247, is available at http://www.regulations.gov or at the Office of Pesticide Programs Regulatory 
Public Docket (OPP Docket) in the Environmental Protection Agency 
Docket Center (EPA/DC), West William Jefferson Clinton Bldg., Rm. 3334, 
1301 Constitution Ave. NW, Washington, DC 20460-0001. The Public 
Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through 
Friday, excluding legal holidays. The telephone number for the Public 
Reading Room is (202) 566-1744, and the telephone number for the OPP 
Docket is (703) 305-5805. Please review the visitor instructions and 
additional information about the docket available at http://www.epa.gov/dockets.

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

SUPPLEMENTARY INFORMATION:

I. General Information

A. Does this action apply to me?

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

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

    You may access a frequently updated electronic version of 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.

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-2014-0247 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 
April 17, 2018. 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-2014-0247, by one of 
the following methods:
     Federal eRulemaking Portal: http://www.regulations.gov. 
Follow the online instructions for submitting comments. Do not submit 
electronically any information you consider to be CBI or other 
information whose disclosure is restricted by statute.
     Mail: OPP Docket, Environmental Protection Agency Docket 
Center (EPA/DC), (28221T), 1200 Pennsylvania Ave. NW, Washington, DC 
20460-0001.
     Hand Delivery: To make special arrangements for hand 
delivery or delivery of boxed information, please follow the 
instructions at http://www.epa.gov/dockets/contacts.html.
    Additional instructions on commenting or visiting the docket, along 
with more information about dockets generally, is available at http://www.epa.gov/dockets.

II. Summary of Petitioned-For Tolerance

    In the Federal Register of August 1, 2014 (79 FR 44729) (FRL-9911-
67), 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 
4F8245) by BASF Corporation, 26 Davis Drive, Research Triangle Park, NC 
27709. The petition requested that 40 CFR 180.361 be amended by 
increasing the tolerances for residues of the herbicide pendimethalin, 
[N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine], and its 
metabolite, 4-[(1-ethylpropyl)amino]-2-methyl-3,5-dinitrobenzyl 
alcohol, in or on alfalfa, forage to 80 parts per million (ppm) and 
alfalfa, hay to 150 ppm. That document referenced a summary of the 
petition prepared by BASF Corporation, the registrant, which is 
available in the docket EPA-HQ-OPP-2014-0397 at http://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 pendimethalin including 
exposure resulting from the tolerances established by this action. 
EPA's assessment of exposures and risks associated with pendimethalin 
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.
    The target organ for pendimethalin is the thyroid. Thyroid toxicity 
in chronic and subchronic rat and mouse studies was manifested as 
alterations in thyroid hormones (decreased total T4 and T3,

[[Page 6977]]

increased percent of free T4 and T3), increased thyroid weight, and 
microscopic thyroid lesions (including increased thyroid follicular 
cell height, follicular cell hyperplasia, as well as follicular cell 
adenomas). Due to these effects, the Agency required that a 
developmental thyroid assay be conducted to evaluate the impact of 
pendimethalin on thyroid hormones, structure, and/or thyroid hormone 
homeostasis during development. A developmental thyroid study was 
submitted and demonstrated that there is no potential thyroid toxicity 
following pre- and/or post-natal exposure to pendimethalin.
    There is no evidence that pendimethalin is a developmental, 
reproductive, neurotoxic, or immunotoxic chemical. There is no evidence 
of increased qualitative or quantitative susceptibility in the young. 
EPA classified pendimethalin as a ``Group C'', possible human 
carcinogen based on a statistically significant increased trend and 
pair-wise comparison between the high-dose group and controls for 
thyroid follicular cell adenomas in male and female rats. A non-
quantitative approach (i.e., non-linear, reference dose (RfD) approach) 
was used to assess cancer risk since mode-of-action studies are 
available to demonstrate that the thyroid tumors are due to a thyroid-
pituitary imbalance, and also since pendimethalin was shown to be non-
mutagenic in mammalian somatic cells and germ cells.
    Specific information on the studies received and the nature of the 
adverse effects caused by pendimethalin as well as the no-observed-
adverse-effect-level (NOAEL) and the lowest-observed-adverse-effect-
level (LOAEL) from the toxicity studies are discussed in the final rule 
published in the Federal Register of December 21, 2015 (80 FR 79267) 
(FRL-9937-18).

B. Toxicological Points of Departure/Levels of Concern

    Once a pesticide's toxicological profile is determined, EPA 
identifies toxicological points of departure (POD) and levels of 
concern to use in evaluating the risk posed by human exposure to the 
pesticide. For hazards that have a threshold below which there is no 
appreciable risk, the toxicological POD is used as the basis for 
derivation of reference values for risk assessment. PODs are developed 
based on a careful analysis of the doses in each toxicological study to 
determine the dose at which no adverse effects are observed (the NOAEL) 
and the lowest dose at which adverse effects of concern are identified 
(the LOAEL). Uncertainty/safety factors are used in conjunction with 
the POD to calculate a safe exposure level--generally referred to as a 
population-adjusted dose (PAD) or a reference dose (RfD)--and a safe 
margin of exposure (MOE). For non-threshold risks, the Agency assumes 
that any amount of exposure will lead to some degree of risk. Thus, the 
Agency estimates risk in terms of the probability of an occurrence of 
the adverse effect expected in a lifetime. For more information on the 
general principles EPA uses in risk characterization and a complete 
description of the risk assessment process, see http://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/assessing-human-health-risk-pesticides.
    A summary of the toxicological endpoints for pendimethalin used for 
human risk assessment is shown in Table 1 of this unit.

 Table 1--Summary of Toxicological Doses and Endpoints for Pendimethalin 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 (General population  NOAEL = 100 mg/kg/    Acute RfD = 1 mg/kg/ Acute neurotoxicity study.
 including infants and children).   day.                  day.                LOAEL = 300 mg/kg/day based on
                                   UFA = 10x...........  aPAD = 1 mg/kg/day.   reduced motor activity for males
                                   UFH = 10x...........                        and females on Day 0.
                                   FQPA SF = 1x........
Chronic dietary (All populations)  NOAEL= 10 mg/kg/day.  Chronic RfD = 0.3    92-Day thyroid function study in
                                   UFA = 3x............   mg/kg/day.           rats; 56-day thyroid study in
                                   UFH = 10x...........  cPAD = 0.3 mg/kg/     rats; 14-day intra thyroid
                                   FQPA SF = 1x........   day.                 metabolism study in rats.
                                                                              LOAEL = 31 mg/kg/day based on
                                                                               hormonal and histopathological
                                                                               changes in the thyroid.
Incidental oral short-term (1 to   NOAEL= 10 mg/kg/day.  LOC for MOE = 30...  92-Day thyroid function study in
 30 days).                         UFA = 3x............                        rats; 56-day thyroid study in
                                   UFH = 10x...........                        rats; 14-day intra thyroid
                                   FQPA SF = 1x........                        metabolism study in rats.
                                                                              LOAEL = 31 mg/kg/day based on
                                                                               hormonal and histopathological
                                                                               changes in the thyroid.
Dermal short-term (1 to 30 days).  Dermal (or oral)      LOC for MOE = 30...  92-Day thyroid function study in
                                    study NOAEL = 10 mg/                       rats; 56-day thyroid study in
                                    kg/day (dermal                             rats; 14-day intra thyroid
                                    absorption rate =                          metabolism study in rats.
                                    3%.                                       LOAEL = 31 mg/kg/day based on
                                   UFA = 3x............                        hormonal and histopathological
                                   UFH = 10x...........                        changes in the thyroid.
                                   FQPA SF = 1x........
Dermal intermediate-term (1 to 6   Dermal (or oral)      LOC for MOE = 30...  92-Day thyroid function study in
 months).                           study NOAEL = 10 mg/                       rats; 56-day thyroid study in
                                    kg/day (dermal                             rats; 14-day intra thyroid
                                    absorption rate =                          metabolism study in rats.
                                    3%.                                       LOAEL = 31 mg/kg/day based on
                                   UFA = 3x............                        hormonal and histopathological
                                   UFH = 10x...........                        changes in the thyroid.
                                   FQPA SF = 1x........

[[Page 6978]]

 
Inhalation short-term (1 to 30     Inhalation (or oral)  LOC for MOE = 30...  92-Day thyroid function study in
 days).                             study NOAEL= 10 mg/                        rats; 56-day thyroid study in
                                    kg/day (inhalation                         rats; 14-day intra thyroid
                                    absorption rate =                          metabolism study in rats.
                                    100%).                                    LOAEL = 31 mg/kg/day based on
                                   UFA = 3x............                        hormonal and histopathological
                                   UFH = 10x...........                        changes in the thyroid.
                                   FQPA SF = 1x........
Inhalation (1 to 6 months).......  Inhalation (or oral)  LOC for MOE = 30...  92-Day thyroid function study in
                                    study NOAEL= 10 mg/                        rats; 56-day thyroid study in
                                    kg/day (inhalation                         rats; 14-day intra thyroid
                                    absorption rate =                          metabolism study in rats.
                                    100%).                                    LOAEL = 31 mg/kg/day based on
                                   UFA = 3x............                        hormonal and histopathological
                                   UFH = 10x...........                        changes in the thyroid.
                                   FQPA SF = 1x........
Cancer (Oral, dermal, inhalation)  Group C, possible
                                    human carcinogen
                                    based on a
                                    statistically
                                    significant
                                    increased trend and
                                    pair-wise
                                    comparison between
                                    the high dose group
                                    and controls for
                                    thyroid follicular
                                    cell adenomas in
                                    male and female
                                    rats. The chronic
                                    RfD will be
                                    protective of
                                    cancer effects.
----------------------------------------------------------------------------------------------------------------
FQPA SF = Food Quality Protection Act Safety Factor. LOC = level of concern. mg/kg/day = milligram/kilogram/day.
  MOE = margin of exposure. NOAEL = no-observed-adverse-effect-level. LOAEL = lowest observed adverse effect
  level. PAD = population adjusted dose (a = acute, c = chronic). RfD = reference dose. UF = uncertainty factor.
  UFA = extrapolation from animal to human (interspecies). UFDB = to account for the absence of data or other
  data deficiency. UFH = potential variation in sensitivity among members of the human population
  (intraspecies). UFL = use of a LOAEL to extrapolate a NOAEL. UFS = use of a short-term study for long-term
  risk assessment.

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to pendimethalin, EPA considered exposure under the 
petitioned-for tolerances as well as all existing pendimethalin 
tolerances in 40 CFR 180.361. EPA assessed dietary exposures from 
pendimethalin 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 pendimethalin. In estimating acute 
dietary exposure, EPA Dietary Exposure Evaluation Model software with 
the Food Commodity Intake Database (DEEM-FCID) Version 3.16. This 
software uses 2003-2008 food consumption data from the U.S. Department 
of Agriculture's (USDA's) National Health and Nutrition Examination 
Survey, What We Eat in America, (NHANES/WWEIA). As to residue levels in 
food, EPA used tolerance-level residues, and 100 percent crop treated 
(PCT) for all commodities.
    ii. Chronic exposure. In conducting the chronic dietary exposure 
assessment EPA used the DEEM-FCID, Version 3.16 software with 2003-2008 
food consumption data from the USDA's NHANES/WWEIA. As to residue 
levels in food, EPA used tolerance-level residues, and 100 PCT for all 
commodities.
    iii. Cancer. Based on the data summarized in Unit III.A., EPA has 
concluded that a nonlinear RfD approach is appropriate for assessing 
cancer risk to pendimethalin. Cancer risk was assessed using the same 
exposure estimates as discussed in Unit III.C.1.ii., chronic exposure.
    iv. Anticipated residue and percent crop treated (PCT) information. 
EPA did not use anticipated residue and/or PCT information in the 
dietary assessment for pendimethalin. Tolerance-level residues and 100 
PCT were assumed for all food commodities.
    2. Dietary exposure from drinking water. In drinking water, the 
residue of concern is pendimethalin, parent only. The Agency used 
screening-level water exposure models in the dietary exposure analysis 
and risk assessment for pendimethalin in drinking water. These 
simulation models take into account data on the physical, chemical, and 
fate/transport characteristics of pendimethalin. Further information 
regarding EPA drinking water models used in pesticide exposure 
assessment can be found at http://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/about-water-exposure-models-used-pesticide.
    Based on the Pesticide Root Zone Model Ground Water (PRZM GW) and

[[Page 6979]]

Surface Water Concentration Calculator (SWCC) models, the estimated 
drinking water concentrations (EDWCs) of pendimethalin for acute 
exposures are estimated to be 96.4 parts per billion (ppb) for surface 
water and 4.38 x 10\-9\ ppb for ground water. For chronic exposures for 
non-cancer assessments, they are estimated to be 9.73 ppb for surface 
water.
    For acute dietary risk assessment, the water concentration value of 
96.4 ppb was used to assess the contribution to drinking water. For 
chronic dietary risk assessment, the water concentration of value 9.73 
ppb was used to assess the contribution to 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).
    Pendimethalin is currently registered for the following uses that 
could result in residential exposures: Turf, home gardens, and 
ornamentals. EPA assessed residential exposure using the following 
assumptions:
     For handlers, it is assumed that residential use will 
result in short-term (1 to 30 days) duration dermal and inhalation 
exposures.
     Residential post-application exposure is also assumed to 
be short-term (1-30 days) in duration, resulting from the following 
exposure scenarios:
     Gardening: Adults (dermal) and children 6 < 11 years old 
(dermal);
     Physical activities on turf: Adults (dermal) and children 
1-2 years old (dermal and incidental oral);
     Mowing turf: Adults (dermal) and children 11 < 16 years 
old (dermal); and
     Exposure to golf courses during golfing: Adults (dermal), 
children 11 < 16 years old (dermal), and children 6 < 11 years old 
(dermal).
    EPA did not combine exposure resulting from adult handler and post-
application exposure resulting from treated gardens, lawns, and/or 
golfing because the conservative assumptions and inputs within each 
estimated exposure scenario would result in an overestimate of adult 
exposure. EPA selected the most conservative adult residential scenario 
(adult dermal post-application exposure from gardening) as the 
contributing source of residential exposure to be combined with the 
dietary exposure for the aggregate assessment. The children's oral 
exposure is based on post-application hand-to-mouth exposures. To 
include exposure from object-to-mouth and soil ingestion in addition to 
hand-to-mouth would overestimate the potential for oral exposure. 
However, there is the potential for co-occurrence of dermal and oral 
exposure, since the toxicological effects from the dermal and oral 
routes of exposure are the same. As a result, the children's aggregate 
assessment combines post-application dermal and oral exposure along 
with dietary exposure from food and water. Further information 
regarding EPA standard assumptions and generic inputs for residential 
exposures may be found at http://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/standard-operating-procedures-residential-pesticide.
    4. Cumulative effects from substances with a common mechanism of 
toxicity. Section 408(b)(2)(D)(v) of FFDCA requires that, when 
considering whether to establish, modify, or revoke a tolerance, the 
Agency consider ``available information'' concerning the cumulative 
effects of a particular pesticide's residues and ``other substances 
that have a common mechanism of toxicity.''
    EPA has not found pendimethalin to share a common mechanism of 
toxicity with any other substances, and pendimethalin does not appear 
to produce a toxic metabolite produced by other substances. For the 
purposes of this tolerance action, therefore, EPA has assumed that 
pendimethalin does not have a common mechanism of toxicity with other 
substances. For information regarding EPA's efforts to determine which 
chemicals have a common mechanism of toxicity and to evaluate the 
cumulative effects of such chemicals, see EPA's website at http://www2.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 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. There was no indication of 
pre- and/or post-natal qualitative or quantitative increased 
susceptibility in the developmental studies in rats and rabbits or the 
2-generation reproduction studies in rats. A developmental thyroid 
toxicity study demonstrated that there is no potential thyroid toxicity 
following pre- and/or post-natal exposure to pendimethalin.
    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. That decision is based on the following 
findings:
    i. The toxicity database for pendimethalin is complete. Although a 
subchronic inhalation study was not available in the database, EPA 
determined that one is not needed at this time based on a weight-of-
evidence analysis, considering the following: (1) All relevant hazard 
and exposure information, which indicates its low acute inhalation 
toxicity; (2) its physical/chemical properties, which indicate its low 
volatility; and (3) the use of an oral POD that results in a 
residential inhalation margin of exposure (MOE) more than 10X the level 
of concern (in the case of pendimethalin MOE = 30 based on thyroid 
POD).
    ii. There is no indication that pendimethalin is a neurotoxic 
chemical and there is no need for a developmental neurotoxicity study 
or additional UFs to account for neurotoxicity.
    iii. There is no evidence that pendimethalin results in increased 
susceptibility in in utero rats or rabbits in the prenatal 
developmental studies or in young rats in the 2-generation reproduction 
study. In addition, a developmental thyroid toxicity study demonstrated 
that there is no potential thyroid toxicity following pre- and/or post-
natal exposure to pendimethalin.
    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 pendimethalin in drinking water. EPA used 
similarly conservative assumptions to assess post-application exposure 
of children as well as incidental oral exposure of toddlers. These 
assessments will not underestimate the exposure and risks posed by 
pendimethalin.

E. Aggregate Risks and Determination of Safety

    EPA determines whether acute and chronic dietary pesticide 
exposures are

[[Page 6980]]

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 pendimethalin will occupy 2% of the aPAD for all infants less than 1 
year old, the population group 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 
pendimethalin from food and water will utilize 2.4% of the cPAD for 
children one to two years old the population group receiving the 
greatest exposure. Based on the explanation in Unit III.C.3., regarding 
residential use patterns, chronic residential exposure to residues of 
pendimethalin is not expected.
    3. Short-term risk. Short-term aggregate exposure takes into 
account short-term residential exposure plus chronic exposure to food 
and water (considered to be a background exposure level).
    Pendimethalin is currently registered for uses that could result in 
short-term residential exposure, and the Agency has determined that it 
is appropriate to aggregate chronic exposure through food and water 
with short-term residential exposures to pendimethalin.
    Using the exposure assumptions described in this unit for short-
term exposures, EPA has concluded the combined short-term food, water, 
and residential exposures result in aggregate MOEs of 130 for adults 
and 92 for children 1-2 years old, the two population subgroups 
receiving the greatest combined dietary and non-dietary exposure. 
Because EPA's level of concern for pendimethalin is a MOE of 30 or 
below, these MOEs are not of concern.
    4. Intermediate-term risk. Intermediate-term aggregate exposure 
takes into account intermediate-term residential exposure plus chronic 
exposure to food and water (considered to be a background exposure 
level).
    An intermediate-term adverse effect was identified; however, 
pendimethalin is not registered for any use patterns that would result 
in intermediate-term residential exposure. Intermediate-term risk is 
assessed based on intermediate-term residential exposure plus chronic 
dietary exposure. Because there is no intermediate-term residential 
exposure and chronic dietary exposure has already been assessed under 
the appropriately protective cPAD (which is at least as protective as 
the POD used to assess intermediate-term risk), no further assessment 
of intermediate-term risk is necessary, and EPA relies on the chronic 
dietary risk assessment for evaluating intermediate-term risk for 
pendimethalin.
    5. Aggregate cancer risk for U.S. population. As discussed in Unit 
III.A., EPA has determined that an RfD approach based on the chronic 
point of departure is appropriate for evaluating cancer risk. As there 
are not chronic aggregate risks of concern, there are no cancer 
aggregate risk concerns.
    6. 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 pendimethalin residues.

IV. Other Considerations

A. Analytical Enforcement Methodology

    Adequate enforcement methodology, gas chromatography with electron 
capture detection (GC/ECD), is available to enforce the tolerance 
expression.
    The method 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 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.
    There are currently no established Codex MRLs for the residues of 
pendimethalin on alfalfa hay, although Codex has established an MRL for 
residues of pendimethalin in alfalfa fodder (which is equivalent to the 
US commodity of alfalfa forage) at 4 ppm. Harmonization is not possible 
because use of the Codex MRL would result in residues of pendimethalin 
exceeding tolerances in the U.S. as a result of use in accordance with 
the approved label.

V. Conclusion

    Therefore, tolerances are established for plant residues by 
measuring only the sum of pendimethalin, [N-(1-ethylpropyl)-3,4-
dimethyl-2,6-dinitrobenzenamine], and its metabolite, 4-[(1-
ethylpropyl)amino]-2-methyl-3,5-dinitrobenzyl alcohol calculated as the 
stoichiometric equivalent of pendimethalin, in or on alfalfa, forage at 
80 ppm and alfalfa, hay at 150 ppm. In addition, the Agency is revising 
the tolerance expression for paragraph (a)(1) to clarify that the 
residues of the parent compound are to be summed with the residues of 
the metabolite in order to determine compliance with the tolerance. 
This revision does not substantively change the existing language; the 
current language already requires measurement of both residues. The 
insertion of the words ``the sum'' just provides a small clarification 
for measuring residues to determine compliance with the tolerance.

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); Executive Order 13045, entitled 
``Protection of Children from Environmental Health Risks and Safety 
Risks'' (62 FR 19885, April 23, 1997); or Executive Order 13771, 
entitled ``Reducing Regulations and Controlling Regulatory Costs'' (82 
FR 9339, February 3, 2017). This action does not contain any 
information collections subject to OMB approval under the Paperwork 
Reduction Act (PRA) (44 U.S.C. 3501 et seq.), nor does it require any 
special considerations

[[Page 6981]]

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: January 30, 2018.
Daniel J. Rosenblatt,
Acting Director, Registration Division, Office of Pesticide Programs.

    Therefore, 40 CFR chapter I is amended as follows:

PART 180--[AMENDED]

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

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


0
2. In Sec.  180.361:
0
a. Revise the introductory text of paragraph (a)(1).
0
b. Revise the entries for ``Alfalfa, forage''; and ``Alfalfa, hay'' in 
the table in paragraph (a)(1).
    The revisions read as follows:


Sec.  180.361  Pendimethalin; tolerances for residues.

    (a)(1) General. Tolerances are established for residues of the 
herbicide pendimethalin, including its metabolites and degradates, in 
or on the commodities. Compliance with the tolerance levels specified 
in the following table below is to be determined by measuring only the 
sum of pendimethalin, [N-(1-ethylpropyl)-3,4-dimethyl-2,6-
dinitrobenzenamine] and its metabolite, 4-[(1-ethylpropyl)amino]-2-
methyl-3,5-dinitrobenzyl alcohol, calculated as the stoichiometric 
equivalent of pendimethalin, in or on the commodity.

------------------------------------------------------------------------
                                                              Parts per
                         Commodity                             million
------------------------------------------------------------------------
Alfalfa, forage............................................           80
Alfalfa, hay...............................................          150
 
                                * * * * *
------------------------------------------------------------------------

* * * * *
[FR Doc. 2018-03277 Filed 2-15-18; 8:45 am]
BILLING CODE 6560-50-P



                                                                     Federal Register / Vol. 83, No. 33 / Friday, February 16, 2018 / Rules and Regulations                                                      6975

                                             rule may take effect, the agency                               purposes of judicial review nor does it                  PART 52—APPROVAL AND
                                             promulgating the rule must submit a                            extend the time within which a petition                  PROMULGATION OF
                                             rule report, which includes a copy of                          for judicial review may be filed, and                    IMPLEMENTATION PLANS
                                             the rule, to each House of the Congress                        shall not postpone the effectiveness of
                                             and to the Comptroller General of the                          such rule or action. This action may not                 ■ 1. The authority citation for part 52
                                             United States. Section 804, however,                           be challenged later in proceedings to                    continues to read as follows:
                                             exempts from section 801 the following                         enforce its requirements. (See section                       Authority: 42 U.S.C. 7401 et seq.
                                             types of rules: Rules of particular                            307(b)(2)).
                                             applicability; rules relating to agency                                                                                 Subpart EE—New Hampshire
                                                                                                            List of Subjects in 40 CFR Part 52
                                             management or personnel; and rules of
                                             agency organization, procedure, or                               Environmental protection, Air                          ■  2. In § 52.1520 paragraph (c), amend
                                             practice that do not substantially affect                      pollution control, Carbon monoxide,                      the table by:
                                             the rights or obligations of nonagency                         Incorporation by reference,                              ■ a. Adding four entries for‘‘Env-A 100’’
                                             parties. 5 U.S.C. 804(3). Because this is                      Intergovernmental relations, Lead,                       after the entry ‘‘Env-A 100;
                                             a rule of particular applicability, EPA is                     Nitrogen dioxide, Ozone, Particulate                     Organizational Rules: Definitions’’;
                                             not required to submit a rule report                           matter, Reporting and recordkeeping                      ■ b. Revising the entry ‘‘Env-A 1000’’;
                                             regarding this action under section 801.                       requirements, Sulfur oxides, Volatile                    and
                                             Under section 307(b)(1) of the Clean Air                       organic compounds.                                       ■ c. Adding in numerical order an entry
                                             Act, petitions for judicial review of this                       Dated: February 6, 2018.                               ‘‘Env-A 1900’’.
                                             action must be filed in the United States                      Alexandra Dapolito Dunn,                                    The revision and additions read as
                                             Court of Appeals for the appropriate                                                                                    follows:
                                                                                                            Regional Administrator, EPA New England.
                                             circuit by November 20, 2017. Filing a
                                             petition for reconsideration by the                              For the reasons set forth in the                       § 52.1520    Identification of plan.
                                             Administrator of this final rule does not                      preamble, 40 CFR part 52 is amended as                   *       *    *        *    *
                                             affect the finality of this action for the                     follows:                                                     (c) * * *
                                                                                                      EPA-APPROVED NEW HAMPSHIRE REGULATIONS
                                                                                                                     State effective
                                                        State citation                      Title/subject                                      EPA approval date 1                         Explanations
                                                                                                                          date


                                                     *                              *                       *                     *                  *                                 *                 *
                                             Env-A 100 ........................    Definition of ‘‘Incinerator’’        04/29/2003 02/16/2018, [Insert Fed-                Remove Part Env–A 101.59, definition of
                                                                                                                                     eral Register citation].                ‘‘Incinerator’’ and replace with ‘‘[re-
                                                                                                                                                                             served].’’
                                             Env-A 100 ........................    Definition of ‘‘Wood                 04/29/2003         02/16/2018, [Insert Fed-        Remove Part Env–A 101.95, definition of
                                                                                    Waste Burner’’.                                          eral Register citation].        ‘‘Wood Waste Burner’’ and replace with
                                                                                                                                                                             ‘‘[reserved].’’
                                             Env-A 100 ........................    Definition of ‘‘Incinerator’’        04/23/2013         02/16/2018, [Insert Fed-        Approve Part Env–A 101.104, definition
                                                                                                                                             eral Register citation].        of ‘‘Incinerator.’’
                                             Env-A 100 ........................    Definition of ‘‘Wood                 01/14/2005         02/16/2018, [Insert Fed-        Approve Part Env–A 101.219, definition
                                                                                    Waste Burner’’.                                          eral Register citation].        of ‘‘Wood Waste Burner.’’

                                                     *                              *                   *                         *                  *                              *                 *
                                             Env-A 1000 ......................     Control of Open Burning              05/01/2011 02/16/2018, [Insert Fed-                Approve Part Env–A 1000 ‘‘Prevention,
                                                                                                                                     eral Register citation].                Abatement and Control of Open
                                                                                                                                                                             Source Air Pollution.’’

                                                     *                              *                    *                        *                  *                              *                  *
                                             Env-A 1900 ......................     Emission Standards and               04/23/2013 02/16/2018, [Insert Fed-                Approve Part Env–A 1900 ‘‘Incinerators
                                                                                      Operating Practices for                        eral Register citation].                and Wood Waste Burners.’’
                                                                                      Incinerators.

                                                            *                        *                       *                         *                       *                       *                     *
                                                 1 In
                                                  order to determine the EPA effective date for a specific provision listed in this table, consult the Federal Register notice cited in this col-
                                             umn for the particular provision.


                                             *          *       *       *      *                            ENVIRONMENTAL PROTECTION                                 SUMMARY:   This regulation amends the
                                             [FR Doc. 2018–03251 Filed 2–15–18; 8:45 am]                    AGENCY                                                   tolerances for residues of pendimethalin
                                             BILLING CODE 6560–50–P                                                                                                  in or on alfalfa, forage and alfalfa, hay.
                                                                                                            40 CFR Part 180                                          BASF Corporation requested these
                                                                                                                                                                     tolerances under the Federal Food,
                                                                                                            [EPA–HQ–OPP–2014–0247; FRL–9973–03]                      Drug, and Cosmetic Act (FFDCA).
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                                                                                                                                                                     DATES: This regulation is effective
                                                                                                            Pendimethalin; Pesticide Tolerances                      February 16, 2018. Objections and
                                                                                                            AGENCY:  Environmental Protection                        requests for hearings must be received
                                                                                                            Agency (EPA).                                            on or before April 17, 2018, and must
                                                                                                                                                                     be filed in accordance with the
                                                                                                            ACTION: Final rule.
                                                                                                                                                                     instructions provided in 40 CFR part


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                                             6976              Federal Register / Vol. 83, No. 33 / Friday, February 16, 2018 / Rules and Regulations

                                             178 (see also Unit I.C. of the                          objection to any aspect of this regulation            2-methyl-3,5-dinitrobenzyl alcohol, in
                                             SUPPLEMENTARY INFORMATION).                             and may also request a hearing on those               or on alfalfa, forage to 80 parts per
                                             ADDRESSES:    The docket for this action,               objections. You must file your objection              million (ppm) and alfalfa, hay to 150
                                             identified by docket identification (ID)                or request a hearing on this regulation               ppm. That document referenced a
                                             number EPA–HQ–OPP–2014–0247, is                         in accordance with the instructions                   summary of the petition prepared by
                                             available at http://www.regulations.gov                 provided in 40 CFR part 178. To ensure                BASF Corporation, the registrant, which
                                             or at the Office of Pesticide Programs                  proper receipt by EPA, you must                       is available in the docket EPA–HQ–
                                             Regulatory Public Docket (OPP Docket)                   identify docket ID number EPA–HQ–                     OPP–2014–0397 at http://
                                             in the Environmental Protection Agency                  OPP–2014–0247 in the subject line on                  www.regulations.gov. There were no
                                             Docket Center (EPA/DC), West William                    the first page of your submission. All                comments received in response to the
                                             Jefferson Clinton Bldg., Rm. 3334, 1301                 objections and requests for a hearing                 notice of filing.
                                             Constitution Ave. NW, Washington, DC                    must be in writing, and must be
                                                                                                                                                           III. Aggregate Risk Assessment and
                                             20460–0001. The Public Reading Room                     received by the Hearing Clerk on or
                                                                                                                                                           Determination of Safety
                                             is open from 8:30 a.m. to 4:30 p.m.,                    before April 17, 2018. Addresses for
                                             Monday through Friday, excluding legal                  mail and hand delivery of objections                     Section 408(b)(2)(A)(i) of FFDCA
                                             holidays. The telephone number for the                  and hearing requests are provided in 40               allows EPA to establish a tolerance (the
                                                                                                     CFR 178.25(b).                                        legal limit for a pesticide chemical
                                             Public Reading Room is (202) 566–1744,
                                                                                                       In addition to filing an objection or               residue in or on a food) only if EPA
                                             and the telephone number for the OPP
                                                                                                     hearing request with the Hearing Clerk                determines that the tolerance is ‘‘safe.’’
                                             Docket is (703) 305–5805. Please review
                                                                                                     as described in 40 CFR part 178, please               Section 408(b)(2)(A)(ii) of FFDCA
                                             the visitor instructions and additional
                                                                                                     submit a copy of the filing (excluding                defines ‘‘safe’’ to mean that ‘‘there is a
                                             information about the docket available
                                                                                                     any Confidential Business Information                 reasonable certainty that no harm will
                                             at http://www.epa.gov/dockets.
                                                                                                     (CBI)) for inclusion in the public docket.            result from aggregate exposure to the
                                             FOR FURTHER INFORMATION CONTACT:                                                                              pesticide chemical residue, including
                                                                                                     Information not marked confidential
                                             Michael L. Goodis, Director,                                                                                  all anticipated dietary exposures and all
                                                                                                     pursuant to 40 CFR part 2 may be
                                             Registration Division (7505P), Office of                                                                      other exposures for which there is
                                                                                                     disclosed publicly by EPA without prior
                                             Pesticide Programs, Environmental                                                                             reliable information.’’ This includes
                                                                                                     notice. Submit the non-CBI copy of your
                                             Protection Agency, 1200 Pennsylvania                                                                          exposure through drinking water and in
                                                                                                     objection or hearing request, identified
                                             Ave. NW, Washington, DC 20460–0001;                                                                           residential settings, but does not include
                                                                                                     by docket ID number EPA–HQ–OPP–
                                             main telephone number: (703) 305–                                                                             occupational exposure. Section
                                                                                                     2014–0247, by one of the following
                                             7090; email address: RDFRNotices@                                                                             408(b)(2)(C) of FFDCA requires EPA to
                                                                                                     methods:
                                             epa.gov.                                                  • Federal eRulemaking Portal: http://               give special consideration to exposure
                                             SUPPLEMENTARY INFORMATION:                              www.regulations.gov. Follow the online                of infants and children to the pesticide
                                                                                                     instructions for submitting comments.                 chemical residue in establishing a
                                             I. General Information
                                                                                                     Do not submit electronically any                      tolerance and to ‘‘ensure that there is a
                                             A. Does this action apply to me?                        information you consider to be CBI or                 reasonable certainty that no harm will
                                                You may be potentially affected by                   other information whose disclosure is                 result to infants and children from
                                             this action if you are an agricultural                  restricted by statute.                                aggregate exposure to the pesticide
                                             producer, food manufacturer, or                           • Mail: OPP Docket, Environmental                   chemical residue. . . .’’
                                             pesticide manufacturer. The following                   Protection Agency Docket Center (EPA/                    Consistent with FFDCA section
                                             list of North American Industrial                       DC), (28221T), 1200 Pennsylvania Ave.                 408(b)(2)(D), and the factors specified in
                                             Classification System (NAICS) codes is                  NW, Washington, DC 20460–0001.                        FFDCA section 408(b)(2)(D), EPA has
                                             not intended to be exhaustive, but rather                 • Hand Delivery: To make special                    reviewed the available scientific data
                                             provides a guide to help readers                        arrangements for hand delivery or                     and other relevant information in
                                             determine whether this document                         delivery of boxed information, please                 support of this action. EPA has
                                             applies to them. Potentially affected                   follow the instructions at http://                    sufficient data to assess the hazards of
                                             entities may include:                                   www.epa.gov/dockets/contacts.html.                    and to make a determination on
                                                • Crop production (NAICS code 111).                    Additional instructions on                          aggregate exposure for pendimethalin
                                                • Animal production (NAICS code                      commenting or visiting the docket,                    including exposure resulting from the
                                             112).                                                   along with more information about                     tolerances established by this action.
                                                • Food manufacturing (NAICS code                     dockets generally, is available at http://            EPA’s assessment of exposures and risks
                                             311).                                                   www.epa.gov/dockets.                                  associated with pendimethalin follows.
                                                • Pesticide manufacturing (NAICS                     II. Summary of Petitioned-For                         A. Toxicological Profile
                                             code 32532).                                            Tolerance                                               EPA has evaluated the available
                                             B. How can I get electronic access to                      In the Federal Register of August 1,               toxicity data and considered its validity,
                                             other related information?                              2014 (79 FR 44729) (FRL–9911–67),                     completeness, and reliability as well as
                                                You may access a frequently updated                  EPA issued a document pursuant to                     the relationship of the results of the
                                             electronic version of EPA’s tolerance                   FFDCA section 408(d)(3), 21 U.S.C.                    studies to human risk. EPA has also
                                             regulations at 40 CFR part 180 through                  346a(d)(3), announcing the filing of a                considered available information
                                             the Government Printing Office’s e-CFR                  pesticide petition (PP 4F8245) by BASF                concerning the variability of the
                                             site at http://www.ecfr.gov/cgi-bin/text-               Corporation, 26 Davis Drive, Research                 sensitivities of major identifiable
                                                                                                     Triangle Park, NC 27709. The petition
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                                             idx?&c=ecfr&tpl=/ecfrbrowse/Title40/                                                                          subgroups of consumers, including
                                             40tab_02.tpl.                                           requested that 40 CFR 180.361 be                      infants and children.
                                                                                                     amended by increasing the tolerances                    The target organ for pendimethalin is
                                             C. How can I file an objection or hearing               for residues of the herbicide                         the thyroid. Thyroid toxicity in chronic
                                             request?                                                pendimethalin, [N-(1-ethylpropyl)-3,4-                and subchronic rat and mouse studies
                                               Under FFDCA section 408(g), 21                        dimethyl-2,6-dinitrobenzenamine], and                 was manifested as alterations in thyroid
                                             U.S.C. 346a, any person may file an                     its metabolite, 4-[(1-ethylpropyl)amino]-             hormones (decreased total T4 and T3,


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                                                               Federal Register / Vol. 83, No. 33 / Friday, February 16, 2018 / Rules and Regulations                                            6977

                                             increased percent of free T4 and T3),                   linear, reference dose (RfD) approach)                of reference values for risk assessment.
                                             increased thyroid weight, and                           was used to assess cancer risk since                  PODs are developed based on a careful
                                             microscopic thyroid lesions (including                  mode-of-action studies are available to               analysis of the doses in each
                                             increased thyroid follicular cell height,               demonstrate that the thyroid tumors are               toxicological study to determine the
                                             follicular cell hyperplasia, as well as                 due to a thyroid-pituitary imbalance,                 dose at which no adverse effects are
                                             follicular cell adenomas). Due to these                 and also since pendimethalin was                      observed (the NOAEL) and the lowest
                                             effects, the Agency required that a                     shown to be non-mutagenic in                          dose at which adverse effects of concern
                                             developmental thyroid assay be                          mammalian somatic cells and germ                      are identified (the LOAEL). Uncertainty/
                                             conducted to evaluate the impact of                     cells.                                                safety factors are used in conjunction
                                             pendimethalin on thyroid hormones,                         Specific information on the studies                with the POD to calculate a safe
                                             structure, and/or thyroid hormone                       received and the nature of the adverse                exposure level—generally referred to as
                                             homeostasis during development. A                       effects caused by pendimethalin as well               a population-adjusted dose (PAD) or a
                                             developmental thyroid study was                         as the no-observed-adverse-effect-level               reference dose (RfD)—and a safe margin
                                             submitted and demonstrated that there                   (NOAEL) and the lowest-observed-                      of exposure (MOE). For non-threshold
                                             is no potential thyroid toxicity                        adverse-effect-level (LOAEL) from the                 risks, the Agency assumes that any
                                             following pre- and/or post-natal                        toxicity studies are discussed in the                 amount of exposure will lead to some
                                             exposure to pendimethalin.                              final rule published in the Federal                   degree of risk. Thus, the Agency
                                                There is no evidence that                            Register of December 21, 2015 (80 FR                  estimates risk in terms of the probability
                                             pendimethalin is a developmental,                       79267) (FRL–9937–18).                                 of an occurrence of the adverse effect
                                             reproductive, neurotoxic, or                                                                                  expected in a lifetime. For more
                                                                                                     B. Toxicological Points of Departure/                 information on the general principles
                                             immunotoxic chemical. There is no
                                                                                                     Levels of Concern                                     EPA uses in risk characterization and a
                                             evidence of increased qualitative or
                                             quantitative susceptibility in the young.                  Once a pesticide’s toxicological                   complete description of the risk
                                             EPA classified pendimethalin as a                       profile is determined, EPA identifies                 assessment process, see http://
                                             ‘‘Group C’’, possible human carcinogen                  toxicological points of departure (POD)               www2.epa.gov/pesticide-science-and-
                                             based on a statistically significant                    and levels of concern to use in                       assessing-pesticide-risks/assessing-
                                             increased trend and pair-wise                           evaluating the risk posed by human                    human-health-risk-pesticides.
                                             comparison between the high-dose                        exposure to the pesticide. For hazards                   A summary of the toxicological
                                             group and controls for thyroid follicular               that have a threshold below which there               endpoints for pendimethalin used for
                                             cell adenomas in male and female rats.                  is no appreciable risk, the toxicological             human risk assessment is shown in
                                             A non-quantitative approach (i.e., non-                 POD is used as the basis for derivation               Table 1 of this unit.

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

                                             Acute dietary (General popu-           NOAEL = 100 mg/            Acute RfD = 1 mg/          Acute neurotoxicity study.
                                               lation including infants and           kg/day.                    kg/day.                  LOAEL = 300 mg/kg/day based on reduced motor activity for
                                               children).                           UFA = 10x                  aPAD = 1 mg/kg/day           males and females on Day 0.
                                                                                    UFH = 10x
                                                                                    FQPA SF = 1x
                                             Chronic dietary (All populations)      NOAEL= 10 mg/kg/           Chronic RfD = 0.3          92-Day thyroid function study in rats; 56-day thyroid study in
                                                                                     day.                        mg/kg/day.                 rats; 14-day intra thyroid metabolism study in rats.
                                                                                    UFA = 3x                   cPAD = 0.3 mg/kg/          LOAEL = 31 mg/kg/day based on hormonal and
                                                                                    UFH = 10x                    day                        histopathological changes in the thyroid.
                                                                                    FQPA SF = 1x
                                             Incidental oral short-term (1 to       NOAEL= 10 mg/kg/           LOC for MOE = 30 ..        92-Day thyroid function study in rats; 56-day thyroid study in
                                               30 days).                              day.                                                  rats; 14-day intra thyroid metabolism study in rats.
                                                                                    UFA = 3x                                              LOAEL = 31 mg/kg/day based on hormonal and
                                                                                    UFH = 10x                                               histopathological changes in the thyroid.
                                                                                    FQPA SF = 1x
                                             Dermal short-term (1 to 30             Dermal (or oral)           LOC for MOE = 30 ..        92-Day thyroid function study in rats; 56-day thyroid study in
                                               days).                                 study NOAEL = 10                                      rats; 14-day intra thyroid metabolism study in rats.
                                                                                      mg/kg/day (dermal                                   LOAEL = 31 mg/kg/day based on hormonal and
                                                                                      absorption rate =                                     histopathological changes in the thyroid.
                                                                                      3%.
                                                                                    UFA = 3x
                                                                                    UFH = 10x
                                                                                    FQPA SF = 1x
                                             Dermal intermediate-term (1 to         Dermal (or oral)           LOC for MOE = 30 ..        92-Day thyroid function study in rats; 56-day thyroid study in
                                               6 months).                             study NOAEL = 10                                      rats; 14-day intra thyroid metabolism study in rats.
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                                                                                      mg/kg/day (dermal                                   LOAEL = 31 mg/kg/day based on hormonal and
                                                                                      absorption rate =                                     histopathological changes in the thyroid.
                                                                                      3%.
                                                                                    UFA = 3x
                                                                                    UFH = 10x
                                                                                    FQPA SF = 1x




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                                             6978               Federal Register / Vol. 83, No. 33 / Friday, February 16, 2018 / Rules and Regulations

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

                                             Inhalation short-term (1 to 30          Inhalation (or oral)       LOC for MOE = 30 ..        92-Day thyroid function study in rats; 56-day thyroid study in
                                               days).                                  study NOAEL= 10                                       rats; 14-day intra thyroid metabolism study in rats.
                                                                                       mg/kg/day (inhala-                                  LOAEL = 31 mg/kg/day based on hormonal and
                                                                                       tion absorption                                       histopathological changes in the thyroid.
                                                                                       rate = 100%).
                                                                                     UFA = 3x
                                                                                     UFH = 10x
                                                                                     FQPA SF = 1x
                                             Inhalation (1 to 6 months) .........    Inhalation (or oral)       LOC for MOE = 30 ..        92-Day thyroid function study in rats; 56-day thyroid study in
                                                                                       study NOAEL= 10                                       rats; 14-day intra thyroid metabolism study in rats.
                                                                                       mg/kg/day (inhala-                                  LOAEL = 31 mg/kg/day based on hormonal and
                                                                                       tion absorption                                       histopathological changes in the thyroid.
                                                                                       rate = 100%).
                                                                                     UFA = 3x
                                                                                     UFH = 10x
                                                                                     FQPA SF = 1x
                                             Cancer (Oral, dermal, inhala-           Group C, possible
                                               tion).                                  human carcinogen
                                                                                       based on a statis-
                                                                                       tically significant
                                                                                       increased trend
                                                                                       and pair-wise com-
                                                                                       parison between
                                                                                       the high dose
                                                                                       group and controls
                                                                                       for thyroid follicular
                                                                                       cell adenomas in
                                                                                       male and female
                                                                                       rats. The chronic
                                                                                       RfD will be protec-
                                                                                       tive of cancer ef-
                                                                                       fects.
                                               FQPA SF = Food Quality Protection Act Safety Factor. LOC = level of concern. mg/kg/day = milligram/kilogram/day. MOE = margin of expo-
                                             sure. NOAEL = no-observed-adverse-effect-level. LOAEL = lowest observed adverse effect level. PAD = population adjusted dose (a = acute, c
                                             = chronic). RfD = reference dose. UF = uncertainty factor. UFA = extrapolation from animal to human (interspecies). UFDB = to account for the
                                             absence of data or other data deficiency. UFH = potential variation in sensitivity among members of the human population (intraspecies). UFL =
                                             use of a LOAEL to extrapolate a NOAEL. UFS = use of a short-term study for long-term risk assessment.


                                             C. Exposure Assessment                                   Department of Agriculture’s (USDA’s)                     iv. Anticipated residue and percent
                                                                                                      National Health and Nutrition                         crop treated (PCT) information. EPA did
                                                1. Dietary exposure from food and
                                                                                                      Examination Survey, What We Eat in                    not use anticipated residue and/or PCT
                                             feed uses. In evaluating dietary
                                                                                                      America, (NHANES/WWEIA). As to                        information in the dietary assessment
                                             exposure to pendimethalin, EPA
                                                                                                      residue levels in food, EPA used                      for pendimethalin. Tolerance-level
                                             considered exposure under the
                                                                                                      tolerance-level residues, and 100                     residues and 100 PCT were assumed for
                                             petitioned-for tolerances as well as all                                                                       all food commodities.
                                                                                                      percent crop treated (PCT) for all
                                             existing pendimethalin tolerances in 40                                                                           2. Dietary exposure from drinking
                                                                                                      commodities.
                                             CFR 180.361. EPA assessed dietary                                                                              water. In drinking water, the residue of
                                             exposures from pendimethalin in food                        ii. Chronic exposure. In conducting
                                                                                                                                                            concern is pendimethalin, parent only.
                                             as follows:                                              the chronic dietary exposure assessment
                                                                                                                                                            The Agency used screening-level water
                                                i. Acute exposure. Quantitative acute                 EPA used the DEEM–FCID, Version 3.16
                                                                                                                                                            exposure models in the dietary exposure
                                             dietary exposure and risk assessments                    software with 2003–2008 food
                                                                                                                                                            analysis and risk assessment for
                                             are performed for a food-use pesticide,                  consumption data from the USDA’s
                                                                                                                                                            pendimethalin in drinking water. These
                                             if a toxicological study has indicated the               NHANES/WWEIA. As to residue levels                    simulation models take into account
                                             possibility of an effect of concern                      in food, EPA used tolerance-level                     data on the physical, chemical, and fate/
                                             occurring as a result of a 1-day or single               residues, and 100 PCT for all                         transport characteristics of
                                             exposure.                                                commodities.                                          pendimethalin. Further information
                                                Such effects were identified for                         iii. Cancer. Based on the data                     regarding EPA drinking water models
                                             pendimethalin. In estimating acute                       summarized in Unit III.A., EPA has
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                                                                                                                                                            used in pesticide exposure assessment
                                             dietary exposure, EPA Dietary Exposure                   concluded that a nonlinear RfD                        can be found at http://www2.epa.gov/
                                             Evaluation Model software with the                       approach is appropriate for assessing                 pesticide-science-and-assessing-
                                             Food Commodity Intake Database                           cancer risk to pendimethalin. Cancer                  pesticide-risks/about-water-exposure-
                                             (DEEM–FCID) Version 3.16. This                           risk was assessed using the same                      models-used-pesticide.
                                             software uses 2003–2008 food                             exposure estimates as discussed in Unit                  Based on the Pesticide Root Zone
                                             consumption data from the U.S.                           III.C.1.ii., chronic exposure.                        Model Ground Water (PRZM GW) and


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                                                               Federal Register / Vol. 83, No. 33 / Friday, February 16, 2018 / Rules and Regulations                                         6979

                                             Surface Water Concentration Calculator                  oral exposure. However, there is the                  post-natal qualitative or quantitative
                                             (SWCC) models, the estimated drinking                   potential for co-occurrence of dermal                 increased susceptibility in the
                                             water concentrations (EDWCs) of                         and oral exposure, since the                          developmental studies in rats and
                                             pendimethalin for acute exposures are                   toxicological effects from the dermal                 rabbits or the 2-generation reproduction
                                             estimated to be 96.4 parts per billion                  and oral routes of exposure are the                   studies in rats. A developmental thyroid
                                             (ppb) for surface water and 4.38 ×                      same. As a result, the children’s                     toxicity study demonstrated that there is
                                             10 9 ppb for ground water. For                          aggregate assessment combines post-                   no potential thyroid toxicity following
                                             chronic exposures for non-cancer                        application dermal and oral exposure                  pre- and/or post-natal exposure to
                                             assessments, they are estimated to be                   along with dietary exposure from food                 pendimethalin.
                                             9.73 ppb for surface water.                             and water. Further information                           3. Conclusion. EPA has determined
                                                For acute dietary risk assessment, the               regarding EPA standard assumptions                    that reliable data show the safety of
                                             water concentration value of 96.4 ppb                   and generic inputs for residential                    infants and children would be
                                             was used to assess the contribution to                  exposures may be found at http://                     adequately protected if the FQPA SF
                                             drinking water. For chronic dietary risk                www2.epa.gov/pesticide-science-and-                   were reduced to 1X. That decision is
                                             assessment, the water concentration of                  assessing-pesticide-risks/standard-                   based on the following findings:
                                             value 9.73 ppb was used to assess the                   operating-procedures-residential-                        i. The toxicity database for
                                             contribution to drinking water.                         pesticide.                                            pendimethalin is complete. Although a
                                                3. From non-dietary exposure. The                       4. Cumulative effects from substances              subchronic inhalation study was not
                                             term ‘‘residential exposure’’ is used in                with a common mechanism of toxicity.                  available in the database, EPA
                                             this document to refer to non-                          Section 408(b)(2)(D)(v) of FFDCA                      determined that one is not needed at
                                             occupational, non-dietary exposure                      requires that, when considering whether               this time based on a weight-of-evidence
                                             (e.g., for lawn and garden pest control,                to establish, modify, or revoke a                     analysis, considering the following: (1)
                                             indoor pest control, termiticides, and                  tolerance, the Agency consider                        All relevant hazard and exposure
                                             flea and tick control on pets).                         ‘‘available information’’ concerning the              information, which indicates its low
                                                Pendimethalin is currently registered                cumulative effects of a particular                    acute inhalation toxicity; (2) its
                                             for the following uses that could result                pesticide’s residues and ‘‘other                      physical/chemical properties, which
                                             in residential exposures: Turf, home                    substances that have a common                         indicate its low volatility; and (3) the
                                             gardens, and ornamentals. EPA assessed                  mechanism of toxicity.’’                              use of an oral POD that results in a
                                             residential exposure using the following                   EPA has not found pendimethalin to                 residential inhalation margin of
                                             assumptions:                                            share a common mechanism of toxicity                  exposure (MOE) more than 10X the
                                                • For handlers, it is assumed that                   with any other substances, and                        level of concern (in the case of
                                             residential use will result in short-term               pendimethalin does not appear to                      pendimethalin MOE = 30 based on
                                             (1 to 30 days) duration dermal and                      produce a toxic metabolite produced by                thyroid POD).
                                             inhalation exposures.                                   other substances. For the purposes of                    ii. There is no indication that
                                                • Residential post-application                       this tolerance action, therefore, EPA has             pendimethalin is a neurotoxic chemical
                                             exposure is also assumed to be short-                   assumed that pendimethalin does not                   and there is no need for a
                                             term (1–30 days) in duration, resulting                 have a common mechanism of toxicity                   developmental neurotoxicity study or
                                             from the following exposure scenarios:                  with other substances. For information                additional UFs to account for
                                                • Gardening: Adults (dermal) and                     regarding EPA’s efforts to determine                  neurotoxicity.
                                             children 6 < 11 years old (dermal);                     which chemicals have a common                            iii. There is no evidence that
                                                • Physical activities on turf: Adults                mechanism of toxicity and to evaluate                 pendimethalin results in increased
                                             (dermal) and children 1–2 years old                     the cumulative effects of such                        susceptibility in in utero rats or rabbits
                                             (dermal and incidental oral);                           chemicals, see EPA’s website at http://               in the prenatal developmental studies or
                                                • Mowing turf: Adults (dermal) and                   www2.epa.gov/pesticide-science-and-                   in young rats in the 2-generation
                                             children 11 < 16 years old (dermal); and                assessing-pesticide-risks/cumulative-                 reproduction study. In addition, a
                                                • Exposure to golf courses during                    assessment-risk-pesticides.                           developmental thyroid toxicity study
                                             golfing: Adults (dermal), children 11 <                                                                       demonstrated that there is no potential
                                             16 years old (dermal), and children 6 <                 D. Safety Factor for Infants and
                                                                                                                                                           thyroid toxicity following pre- and/or
                                             11 years old (dermal).                                  Children
                                                                                                                                                           post-natal exposure to pendimethalin.
                                                EPA did not combine exposure                           1. In general. Section 408(b)(2)(C) of                 iv. There are no residual uncertainties
                                             resulting from adult handler and post-                  FFDCA provides that EPA shall apply                   identified in the exposure databases.
                                             application exposure resulting from                     an additional tenfold (10X) margin of                 The dietary food exposure assessments
                                             treated gardens, lawns, and/or golfing                  safety for infants and children in the                were performed based on 100 PCT and
                                             because the conservative assumptions                    case of threshold effects to account for              tolerance-level residues. EPA made
                                             and inputs within each estimated                        prenatal and postnatal toxicity and the               conservative (protective) assumptions in
                                             exposure scenario would result in an                    completeness of the database on toxicity              the ground and surface water modeling
                                             overestimate of adult exposure. EPA                     and exposure unless EPA determines                    used to assess exposure to
                                             selected the most conservative adult                    based on reliable data that a different               pendimethalin in drinking water. EPA
                                             residential scenario (adult dermal post-                margin of safety will be safe for infants             used similarly conservative assumptions
                                             application exposure from gardening) as                 and children. This additional margin of               to assess post-application exposure of
                                             the contributing source of residential                  safety is commonly referred to as the                 children as well as incidental oral
                                             exposure to be combined with the                        FQPA Safety Factor (SF). In applying                  exposure of toddlers. These assessments
                                             dietary exposure for the aggregate
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                                                                                                     this provision, EPA either retains the                will not underestimate the exposure and
                                             assessment. The children’s oral                         default value of 10X, or uses a different             risks posed by pendimethalin.
                                             exposure is based on post-application                   additional safety factor when reliable
                                             hand-to-mouth exposures. To include                     data available to EPA support the choice              E. Aggregate Risks and Determination of
                                             exposure from object-to-mouth and soil                  of a different factor.                                Safety
                                             ingestion in addition to hand-to-mouth                    2. Prenatal and postnatal sensitivity.                EPA determines whether acute and
                                             would overestimate the potential for                    There was no indication of pre- and/or                chronic dietary pesticide exposures are


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                                             6980              Federal Register / Vol. 83, No. 33 / Friday, February 16, 2018 / Rules and Regulations

                                             safe by comparing aggregate exposure                    risk is assessed based on intermediate-                 There are currently no established
                                             estimates to the acute PAD (aPAD) and                   term residential exposure plus chronic                Codex MRLs for the residues of
                                             chronic PAD (cPAD). For linear cancer                   dietary exposure. Because there is no                 pendimethalin on alfalfa hay, although
                                             risks, EPA calculates the lifetime                      intermediate-term residential exposure                Codex has established an MRL for
                                             probability of acquiring cancer given the               and chronic dietary exposure has                      residues of pendimethalin in alfalfa
                                             estimated aggregate exposure. Short-,                   already been assessed under the                       fodder (which is equivalent to the US
                                             intermediate-, and chronic-term risks                   appropriately protective cPAD (which is               commodity of alfalfa forage) at 4 ppm.
                                             are evaluated by comparing the                          at least as protective as the POD used to             Harmonization is not possible because
                                             estimated aggregate food, water, and                    assess intermediate-term risk), no                    use of the Codex MRL would result in
                                             residential exposure to the appropriate                 further assessment of intermediate-term               residues of pendimethalin exceeding
                                             PODs to ensure that an adequate MOE                     risk is necessary, and EPA relies on the              tolerances in the U.S. as a result of use
                                             exists.                                                 chronic dietary risk assessment for                   in accordance with the approved label.
                                                1. Acute risk. Using the exposure                    evaluating intermediate-term risk for
                                             assumptions discussed in this unit for                                                                        V. Conclusion
                                                                                                     pendimethalin.
                                             acute exposure, the acute dietary                          5. Aggregate cancer risk for U.S.                    Therefore, tolerances are established
                                             exposure from food and water to                         population. As discussed in Unit III.A.,              for plant residues by measuring only the
                                             pendimethalin will occupy 2% of the                     EPA has determined that an RfD                        sum of pendimethalin, [N-(1-
                                             aPAD for all infants less than 1 year old,              approach based on the chronic point of                ethylpropyl)-3,4-dimethyl-2,6-
                                             the population group receiving the                      departure is appropriate for evaluating               dinitrobenzenamine], and its metabolite,
                                             greatest exposure.                                      cancer risk. As there are not chronic                 4-[(1-ethylpropyl)amino]-2-methyl-3,5-
                                                2. Chronic risk. Using the exposure                  aggregate risks of concern, there are no              dinitrobenzyl alcohol calculated as the
                                             assumptions described in this unit for                  cancer aggregate risk concerns.                       stoichiometric equivalent of
                                             chronic exposure, EPA has concluded                        6. Determination of safety. Based on               pendimethalin, in or on alfalfa, forage at
                                             that chronic exposure to pendimethalin                  these risk assessments, EPA concludes                 80 ppm and alfalfa, hay at 150 ppm. In
                                             from food and water will utilize 2.4% of                that there is a reasonable certainty that             addition, the Agency is revising the
                                             the cPAD for children one to two years                  no harm will result to the general                    tolerance expression for paragraph (a)(1)
                                             old the population group receiving the                  population, or to infants and children                to clarify that the residues of the parent
                                             greatest exposure. Based on the                         from aggregate exposure to                            compound are to be summed with the
                                             explanation in Unit III.C.3., regarding                 pendimethalin residues.                               residues of the metabolite in order to
                                             residential use patterns, chronic                                                                             determine compliance with the
                                             residential exposure to residues of                     IV. Other Considerations                              tolerance. This revision does not
                                             pendimethalin is not expected.                          A. Analytical Enforcement Methodology                 substantively change the existing
                                                3. Short-term risk. Short-term                                                                             language; the current language already
                                             aggregate exposure takes into account                      Adequate enforcement methodology,                  requires measurement of both residues.
                                             short-term residential exposure plus                    gas chromatography with electron                      The insertion of the words ‘‘the sum’’
                                             chronic exposure to food and water                      capture detection (GC/ECD), is available              just provides a small clarification for
                                             (considered to be a background                          to enforce the tolerance expression.                  measuring residues to determine
                                             exposure level).                                           The method may be requested from:                  compliance with the tolerance.
                                                Pendimethalin is currently registered                Chief, Analytical Chemistry Branch,
                                                                                                     Environmental Science Center, 701                     VI. Statutory and Executive Order
                                             for uses that could result in short-term
                                                                                                     Mapes Rd., Ft. Meade, MD 20755–5350;                  Reviews
                                             residential exposure, and the Agency
                                             has determined that it is appropriate to                telephone number: (410) 305–2905;                        This action establishes tolerances
                                             aggregate chronic exposure through food                 email address: residuemethods@                        under FFDCA section 408(d) in
                                             and water with short-term residential                   epa.gov.                                              response to a petition submitted to the
                                             exposures to pendimethalin.                                                                                   Agency. The Office of Management and
                                                                                                     B. International Residue Limits                       Budget (OMB) has exempted these types
                                                Using the exposure assumptions
                                             described in this unit for short-term                     In making its tolerance decisions, EPA              of actions from review under Executive
                                             exposures, EPA has concluded the                        seeks to harmonize U.S. tolerances with               Order 12866, entitled ‘‘Regulatory
                                             combined short-term food, water, and                    international standards whenever                      Planning and Review’’ (58 FR 51735,
                                             residential exposures result in aggregate               possible, consistent with U.S. food                   October 4, 1993). Because this action
                                             MOEs of 130 for adults and 92 for                       safety standards and agricultural                     has been exempted from review under
                                             children 1–2 years old, the two                         practices. EPA considers the                          Executive Order 12866, this action is
                                             population subgroups receiving the                      international maximum residue limits                  not subject to Executive Order 13211,
                                             greatest combined dietary and non-                      (MRLs) established by the Codex                       entitled ‘‘Actions Concerning
                                             dietary exposure. Because EPA’s level of                Alimentarius Commission (Codex), as                   Regulations That Significantly Affect
                                             concern for pendimethalin is a MOE of                   required by FFDCA section 408(b)(4).                  Energy Supply, Distribution, or Use’’ (66
                                             30 or below, these MOEs are not of                      The Codex Alimentarius is a joint                     FR 28355, May 22, 2001); Executive
                                             concern.                                                United Nations Food and Agriculture                   Order 13045, entitled ‘‘Protection of
                                                4. Intermediate-term risk.                           Organization/World Health                             Children from Environmental Health
                                             Intermediate-term aggregate exposure                    Organization food standards program,                  Risks and Safety Risks’’ (62 FR 19885,
                                             takes into account intermediate-term                    and it is recognized as an international              April 23, 1997); or Executive Order
                                             residential exposure plus chronic                       food safety standards-setting                         13771, entitled ‘‘Reducing Regulations
                                                                                                     organization in trade agreements to                   and Controlling Regulatory Costs’’ (82
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                                             exposure to food and water (considered
                                             to be a background exposure level).                     which the United States is a party. EPA               FR 9339, February 3, 2017). This action
                                                An intermediate-term adverse effect                  may establish a tolerance that is                     does not contain any information
                                             was identified; however, pendimethalin                  different from a Codex MRL; however,                  collections subject to OMB approval
                                             is not registered for any use patterns                  FFDCA section 408(b)(4) requires that                 under the Paperwork Reduction Act
                                             that would result in intermediate-term                  EPA explain the reasons for departing                 (PRA) (44 U.S.C. 3501 et seq.), nor does
                                             residential exposure. Intermediate-term                 from the Codex level.                                 it require any special considerations


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                                                               Federal Register / Vol. 83, No. 33 / Friday, February 16, 2018 / Rules and Regulations                                             6981

                                             under Executive Order 12898, entitled                   and pests, Reporting and recordkeeping                ACTION:   Final rule.
                                             ‘‘Federal Actions to Address                            requirements.
                                             Environmental Justice in Minority                                                                             SUMMARY:         The Environmental Protection
                                                                                                        Dated: January 30, 2018.                                Agency (EPA) Region 1 announces the
                                             Populations and Low-Income                              Daniel J. Rosenblatt,
                                             Populations’’ (59 FR 7629, February 16,                                                                            deletion of the Hatheway & Patterson
                                                                                                     Acting Director, Registration Division, Office             Superfund Site (Site) located in
                                             1994).                                                  of Pesticide Programs.
                                                Since tolerances and exemptions that                                                                            Mansfield and Foxborough,
                                             are established on the basis of a petition                 Therefore, 40 CFR chapter I is                          Massachusetts, from the National
                                             under FFDCA section 408(d), such as                     amended as follows:                                        Priorities List (NPL). The NPL,
                                             the tolerances in this final rule, do not                                                                          promulgated pursuant to section 105 of
                                                                                                     PART 180—[AMENDED]                                         the Comprehensive Environmental
                                             require the issuance of a proposed rule,
                                             the requirements of the Regulatory                                                                                 Response, Compensation, and Liability
                                                                                                     ■ 1. The authority citation for part 180                   Act (CERCLA) of 1980, as amended, is
                                             Flexibility Act (RFA) (5 U.S.C. 601 et                  continues to read as follows:
                                             seq.), do not apply.                                                                                               an appendix of the National Oil and
                                                                                                        Authority: 21 U.S.C. 321(q), 346a and 371.              Hazardous Substances Pollution
                                                This action directly regulates growers,
                                                                                                     ■ 2. In § 180.361:
                                                                                                                                                                Contingency Plan (NCP). The EPA and
                                             food processors, food handlers, and food
                                                                                                     ■ a. Revise the introductory text of
                                                                                                                                                                the Commonwealth of Massachusetts,
                                             retailers, not States or tribes, nor does
                                                                                                     paragraph (a)(1).                                          through the Massachusetts Department
                                             this action alter the relationships or
                                                                                                     ■ b. Revise the entries for ‘‘Alfalfa,
                                                                                                                                                                of Environmental Protection (MassDEP),
                                             distribution of power and
                                                                                                     forage’’; and ‘‘Alfalfa, hay’’ in the table                have determined that all appropriate
                                             responsibilities established by Congress
                                                                                                     in paragraph (a)(1).                                       response actions under CERCLA, other
                                             in the preemption provisions of FFDCA
                                                                                                        The revisions read as follows:                          than operation and maintenance,
                                             section 408(n)(4). As such, the Agency
                                                                                                                                                                monitoring, and five-year reviews, have
                                             has determined that this action will not
                                                                                                     § 180.361 Pendimethalin; tolerances for                    been completed. However, this deletion
                                             have a substantial direct effect on States              residues.                                                  does not preclude future actions under
                                             or tribal governments, on the
                                                                                                        (a)(1) General. Tolerances are                          Superfund.
                                             relationship between the national
                                             government and the States or tribal                     established for residues of the herbicide DATES: This action is effective February
                                             governments, or on the distribution of                  pendimethalin, including its                               16, 2018.
                                             power and responsibilities among the                    metabolites and degradates, in or on the ADDRESSES: Docket: EPA has established
                                             various levels of government or between                 commodities. Compliance with the                           a docket for this action under Docket
                                             the Federal Government and Indian                       tolerance levels specified in the                          Identification No. EPA–HQ–SFUND–
                                             tribes. Thus, the Agency has determined                 following table below is to be                             2002–0001. All documents in the docket
                                             that Executive Order 13132, entitled                    determined by measuring only the sum                       are listed on the http://
                                             ‘‘Federalism’’ (64 FR 43255, August 10,                 of pendimethalin, [N-(1-ethylpropyl)-                      www.regulations.gov website. Although
                                             1999) and Executive Order 13175,                        3,4-dimethyl-2,6-dinitrobenzenamine]                       listed in the index, some information is
                                             entitled ‘‘Consultation and Coordination                and its metabolite, 4-[(1-                                 not publicly available, i.e., Confidential
                                             with Indian Tribal Governments’’ (65 FR                 ethylpropyl)amino]-2-methyl-3,5-                           Business Information or other
                                             67249, November 9, 2000) do not apply                   dinitrobenzyl alcohol, calculated as the                   information whose disclosure is
                                             to this action. In addition, this action                stoichiometric equivalent of                               restricted by statute. Certain other
                                             does not impose any enforceable duty or                 pendimethalin, in or on the commodity. material, such as copyrighted material,
                                             contain any unfunded mandate as                                                                                    is not placed on the internet and will be
                                                                                                                                                     Parts      publicly available only in hard copy
                                             described under Title II of the Unfunded                            Commodity                            per
                                             Mandates Reform Act (UMRA) (2 U.S.C.                                                                    million    form. Publicly available docket
                                             1501 et seq.).                                                                                                     materials are available either
                                                This action does not involve any                     Alfalfa, forage ...........................             80 electronically through http://
                                             technical standards that would require                  Alfalfa, hay ................................          150 www.regulations.gov or in hard copy at
                                             Agency consideration of voluntary                                                                                  the site information repositories.
                                                                                                         *          *              *               *       *    Locations, contacts, phone numbers and
                                             consensus standards pursuant to section
                                             12(d) of the National Technology                                                                                   viewing hours are:
                                                                                                     *      *      *         *         *                           U.S. EPA Region 1, Superfund
                                             Transfer and Advancement Act                            [FR Doc. 2018–03277 Filed 2–15–18; 8:45 am]
                                             (NTTAA) (15 U.S.C. 272 note).                                                                                      Records Center, 5 Post Office Square,
                                                                                                     BILLING CODE 6560–50–P                                     Suite 100, Boston, MA 02109, Phone:
                                             VII. Congressional Review Act                                                                                      617–918–1440, Monday–Friday: 9:00
                                               Pursuant to the Congressional Review                                                                             a.m.–5:00 p.m., Saturday and Sunday—
                                                                                                     ENVIRONMENTAL PROTECTION                                   Closed.
                                             Act (5 U.S.C. 801 et seq.), EPA will                    AGENCY
                                             submit a report containing this rule and                                                                           FOR FURTHER INFORMATION CONTACT:
                                             other required information to the U.S.                  40 CFR Part 300                                            Kimberly White, Remedial Project
                                             Senate, the U.S. House of                                                                                          Manager, U.S. Environmental Protection
                                             Representatives, and the Comptroller                    [EPA–HQ–SFUND–2002–0001; FRL–9974–                         Agency, Region 1, OSRR07–1, Boston,
                                                                                                     43—Region 1]                                               MA 02109–3912, (617) 918–1752, email:
                                             General of the United States prior to
                                             publication of the rule in the Federal                                                                             white.kimberly@epa.gov.
                                                                                                     National Oil and Hazardous
                                             Register. This action is not a ‘‘major                                                                                               INFORMATION: The site to
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                                                                                                     Substances Pollution Contingency                           SUPPLEMENTARY
                                             rule’’ as defined by 5 U.S.C. 804(2).                   Plan; National Priorities List: Deletion                   be  deleted from  the NPL is: Hatheway
                                                                                                     of the Hatheway & Patterson                                & Patterson Superfund Site, Mansfield
                                             List of Subjects in 40 CFR Part 180
                                                                                                     Superfund Site                                             and Foxborough, Massachusetts. A
                                              Environmental protection,                                                                                         notification of deletion for this Site was
                                             Administrative practice and procedure,                  AGENCY: Environmental Protection                           published in the Federal Register (82
                                             Agricultural commodities, Pesticides                    Agency.                                                    FR 56939) on December 1, 2017.


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Document Created: 2018-02-16 00:55:25
Document Modified: 2018-02-16 00:55:25
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 February 16, 2018. Objections and requests for hearings must be received on or before April 17, 2018, 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, Director, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW, Washington,
FR Citation83 FR 6975 
CFR AssociatedEnvironmental Protection; Administrative Practice and Procedure; Agricultural Commodities; Pesticides and Pests and Reporting and Recordkeeping Requirements

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