83_FR_8035 83 FR 7998 - Indaziflam; Pesticide Tolerances for Emergency Exemptions

83 FR 7998 - Indaziflam; Pesticide Tolerances for Emergency Exemptions

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 83, Issue 37 (February 23, 2018)

Page Range7998-8002
FR Document2018-03673

This regulation establishes time-limited tolerances for residues of indaziflam in or on rangeland, pastures, and areas subject to the Conservation Reserve Program (CRP). This action is in response to EPA's granting of an emergency exemption under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) authorizing use of the pesticide in or on grass, forage, fodder, and hay, group 17, forage and grass, forage, fodder, and hay, group 17, hay, grown in rangeland, pastures, and areas subject to the CRP. This regulation establishes a maximum permissible level for residues of indaziflam in or on these commodities. The time-limited tolerances expire on December 31, 2020.

Federal Register, Volume 83 Issue 37 (Friday, February 23, 2018)
[Federal Register Volume 83, Number 37 (Friday, February 23, 2018)]
[Rules and Regulations]
[Pages 7998-8002]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-03673]



[[Page 7998]]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2017-0551; FRL-9973-10]


Indaziflam; Pesticide Tolerances for Emergency Exemptions

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This regulation establishes time-limited tolerances for 
residues of indaziflam in or on rangeland, pastures, and areas subject 
to the Conservation Reserve Program (CRP). This action is in response 
to EPA's granting of an emergency exemption under the Federal 
Insecticide, Fungicide, and Rodenticide Act (FIFRA) authorizing use of 
the pesticide in or on grass, forage, fodder, and hay, group 17, forage 
and grass, forage, fodder, and hay, group 17, hay, grown in rangeland, 
pastures, and areas subject to the CRP. This regulation establishes a 
maximum permissible level for residues of indaziflam in or on these 
commodities. The time-limited tolerances expire on December 31, 2020.

DATES: This regulation is effective February 23, 2018. Objections and 
requests for hearings must be received on or before April 24, 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).

ADDRESSES: The docket for this action, identified by docket 
identification (ID) number EPA-HQ-OPP-2017-0551, 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 40 CFR 
part 180 through the Government Printing Office's e-CFR site at http://www.ecfr.gov/cgi-bin/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl. To access the OCSPP test guidelines referenced in this 
document electronically, please go to https://www.epa.gov/aboutepa/about-office-chemical-safety-and-pollution-prevention-ocspp and select 
``Test Methods and Guidelines.''

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

    Under section 408(g) of the Federal Food, Drug, and Cosmetic Act 
(FFDCA), 21 U.S.C. 346a, any person may file an objection to any aspect 
of this regulation and may also request a hearing on those objections. 
You must file your objection or request a hearing on this regulation in 
accordance with the instructions provided in 40 CFR part 178. To ensure 
proper receipt by EPA, you must identify docket ID number EPA-HQ-OPP-
2017-0551 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 24, 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-2017-0551, 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 https://www.epa.gov/dockets/where-send-comments-epa-dockets. Additional instructions on commenting or visiting the docket, 
along with more information about dockets generally, is available at 
http://www.epa.gov/dockets.

II. Background and Statutory Findings

    EPA, on its own initiative, in accordance with FFDCA sections 
408(e) and 408(l)(6) of, 21 U.S.C. 346a(e) and 346a(1)(6), is 
establishing time-limited tolerances for residues of the herbicide 
indaziflam, N-[(1R,2S)-2,3-dihydro-2,6-dimethyl-1H-inden-1-yl]-6-(1-
fluoroethyl)-1,3,5-triazine-2,4-diamine, including its metabolites and 
degradates in or on grass, forage, fodder, and hay, group 17, forage at 
30 parts per million (ppm) and grass, forage, fodder, and hay, group 
17, hay at 100 ppm from use on rangeland, pastures, and areas subject 
to the CRP. These time-limited tolerances expire on December 31, 2020.
    Section 408(l)(6) of FFDCA requires EPA to establish a time-limited 
tolerance or exemption from the requirement for a tolerance for 
pesticide chemical residues in food that will result from the use of a 
pesticide under an emergency exemption granted by EPA under FIFRA 
section 18. Such tolerances can be established without providing notice 
or period for public comment. EPA does not intend for its actions on 
FIFRA section 18 related time-limited tolerances to set binding 
precedents for the application of FFDCA section 408 and the safety 
standard to other tolerances and exemptions. Section 408(e) of FFDCA 
allows EPA to establish a tolerance or an exemption from the 
requirement of a tolerance on its own initiative, i.e., without having 
received any petition from an outside party.

[[Page 7999]]

    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. . . 
.''
    Section 18 of FIFRA authorizes EPA to exempt any Federal or State 
agency from any provision of FIFRA, if EPA determines that ``emergency 
conditions exist which require such exemption.'' EPA has established 
regulations governing such emergency exemptions in 40 CFR part 166.

III. Emergency Exemption for Indaziflam on Rangeland, Pastures, and 
Areas Subject to the CRP

    The Wyoming Department of Agriculture (WDA) requested a specific 
emergency exemption for the use of indaziflam in rangeland, pastures, 
and areas subject to the conservation reserve program (CRP) to control 
medusahead (Taeniatherum caput-medusae) and ventenata (Ventenata dubia) 
in the Wyoming counties of Sheridan, Johnson, Cambell, Crook, and 
Weston. Medusahead and ventenata have recently become established in 
Wyoming. These pests are potentially two of the greatest risks to 
Wyoming cattle production because they degrade rangeland forage and hay 
production. Medusahead has reduced forage production by 80%. Visual 
assessments of areas invaded by ventenata suggest it offers very little 
forage. In addition to reducing the forage production, ventenata and 
medusahead also increase forage silica content by 1.5 and 4 times 
respectively. This produces poorer quality forage that is less 
palatable and harder for cattle to digest. If these pests are not 
controlled, potential statewide invasion can happen in less than 25 
years. After having reviewed the submission, EPA determined that an 
emergency condition exists for this State, and that the criteria for 
approval of an emergency exemption are met.
    As part of its evaluation of the emergency exemption application, 
EPA assessed the potential risks presented by residues of indaziflam in 
or on rangeland, pastures, and areas subject to the CRP. In doing so, 
EPA considered the safety standard in FFDCA section 408(b)(2), and EPA 
decided that the necessary tolerances under FFDCA section 408(l)(6) 
would be consistent with the safety standard and with FIFRA section 18. 
Consistent with the need to move quickly on the emergency exemption in 
order to address an urgent, non-routine situation and to ensure that 
the resulting food is safe and lawful, EPA is issuing these tolerances 
without notice and opportunity for public comment as provided in FFDCA 
section 408(l)(6). Although these time-limited tolerances expire on 
December 31, 2020, under FFDCA section 408(l)(5), residues of the 
pesticide not in excess of the amounts specified in the tolerance 
remaining in or on grass, forage, fodder, and hay, group 17, forage and 
grass, forage, fodder, and hay, group 17, hay on rangeland, pastures, 
and areas subject to the CRP after that date will not be unlawful, 
provided the pesticide was applied in a manner that was lawful under 
FIFRA, and the residues do not exceed a level that was authorized by 
these time-limited tolerances at the time of that application. EPA will 
take action to revoke these time-limited tolerances earlier if any 
experience with, scientific data on, or other relevant information on 
this pesticide indicate that the residues are not safe.
    Because these time-limited tolerances are being approved under 
emergency conditions, EPA has not made any decisions about whether 
indaziflam meets FIFRA's registration requirements for use on 
rangeland, pastures, and areas subject to the CRP or whether permanent 
tolerances for this use would be appropriate. Under these 
circumstances, EPA does not believe that this time-limited tolerance 
decision serves as a basis for registration of indaziflam by a State 
for special local needs under FIFRA section 24(c), nor does this 
tolerance by itself serve as the authority for persons in any State 
other than Wyoming to use this pesticide on the applicable crops under 
FIFRA section 18, absent the issuance of an emergency exemption 
applicable within that State. For additional information regarding the 
emergency exemption for indaziflam, contact the Agency's Registration 
Division at the address provided under FOR FURTHER INFORMATION CONTACT.

IV. Aggregate Risk Assessment and Determination of Safety

    Consistent with 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 expected as a result of this emergency exemption request and 
the time-limited tolerances for residues of indaziflam on grass, 
forage, fodder, and hay, group 17, forage at 30 ppm and grass, forage, 
fodder, and hay, group 17, hay at 100 ppm from use on rangeland, 
pastures, and areas subject to the CRP. EPA's assessment of exposures 
and risks associated with establishing time-limited tolerances follows.

A. Toxicological Points of Departure/Levels of Concern

    Once a pesticide's toxicological profile is determined, EPA 
identifies toxicological points of departure (POD) and levels of 
concern to use in evaluating the risk posed by human exposure to the 
pesticide. For hazards that have a threshold below which there is no 
appreciable risk, the toxicological POD is used as the basis for 
derivation of reference values for risk assessment. PODs are developed 
based on a careful analysis of the doses in each toxicological study to 
determine the dose at which no adverse effects are observed (the NOAEL) 
and the lowest dose at which adverse effects of concern are identified 
(the LOAEL). Uncertainty/safety factors are used in conjunction with 
the POD to calculate a safe exposure level--generally referred to as a 
population-adjusted dose (PAD) or a reference dose (RfD)--and a safe 
margin of exposure (MOE). For non-threshold risks, the Agency assumes 
that any amount of exposure will lead to some degree of risk. Thus, the 
Agency estimates risk in terms of the probability of an occurrence of 
the adverse effect expected in a lifetime. For more information on the 
general principles EPA uses in risk characterization and a complete 
description of the risk assessment process, see https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks.
    A summary of the toxicological endpoints for indaziflam used for 
human risk assessment is discussed in Unit III.B. of the final rule 
published in the Federal Register of January 29, 2014 (79 FR 4624) 
(FRL-9903-88).

B. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary

[[Page 8000]]

exposure to indaziflam, EPA considered exposure under the time-limited 
tolerances established by this action as well as all existing 
indaziflam tolerances in 40 CFR 180.653. EPA assessed dietary exposures 
from indaziflam in food as follows:
    i. Acute and chronic exposures. Acute effects were identified for 
indaziflam. In estimating acute and chronic dietary exposures, EPA used 
food consumption information from the United States Department of 
Agriculture (USDA) National Health and Nutrition Examination Survey, 
What We Eat in America, (NHANES/WWEIA). As to residue levels in food, 
EPA notes that previous indaziflam assessments used screening-level 
assessments which assumed tolerance-level residues and 100% crop 
treated for all included commodities. There are no uses on human foods 
associated with this section 18 emergency use and there is no 
expectation of quantifiable residues in livestock commodities. This 
emergency exemption does not result in any changes to the previous 
dietary exposure and risk estimates.
    ii. Cancer. Based on the data summarized in Unit IV.A., EPA has 
concluded that indaziflam does not pose a cancer risk to humans. 
Therefore, a dietary exposure assessment for the purpose of assessing 
cancer risk is unnecessary.
    iii. Anticipated residue and percent crop treated (PCT) 
information. EPA did not use anticipated residue and/or PCT information 
in the dietary assessment for indaziflam. Tolerance level residues and 
100% CT were assumed for all food commodities.
    2. Dietary exposure from drinking water. The Agency used screening 
level water exposure models in the dietary exposure analysis and risk 
assessment for indaziflam in drinking water. These simulation models 
take into account data on the physical, chemical, and fate/transport 
characteristics of indaziflam. Further information regarding EPA 
drinking water models used in pesticide exposure assessment can be 
found at https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/about-water-exposure-models-used-pesticide.
    Based on the Pesticide in Water Calculator (PWC) and the Tier 1 
Rice model, the estimated drinking water concentrations (EDWCs) of 
indaziflam for acute exposures are estimated to be 84 parts per billion 
(ppb) for surface water and 3.7 ppb for ground water. For chronic 
exposures for non-cancer assessments are estimated to be 26 ppb for 
surface water and 3.7 ppb for ground water.
    Modeled estimates of drinking water concentrations were directly 
entered into the dietary exposure model. For the acute dietary risk 
assessment, the water concentration value of 84 ppb was used to assess 
the contribution to drinking water. For chronic dietary risk 
assessment, the water concentration value of 26 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).
    Indaziflam is currently registered for the following uses that 
could result in residential exposures: Turf, gardens, and trees. EPA 
assessed residential exposure using the following assumptions: Short-
term dermal and inhalation handler exposure is expected for adults as a 
result of applying products containing indaziflam to lawns/turf and 
gardens/trees using a variety of application equipment. Short-term 
post-application dermal exposure is expected for adults, children 11 to 
16, and children 6 to 11 years old as a result of playing, mowing and/
or golfing on treated turf. Short-term dermal and incidental oral 
exposures (hand to mouth, object to mouth, incidental soil ingestion) 
are expected for children 1 to 2 years old as a result from playing on 
treated turf/lawns. Lastly, short-term post-application dermal exposure 
is expected for adults and children 6 to 11 years old as result of 
application to gardens and trees. The Agency selected only the most 
conservative residential adult and child scenarios to be included in 
the aggregate estimates, based on the lowest overall MOE (i.e., highest 
risk estimates). The most conservative residential exposure scenario 
for both adults and children resulted from short-term dermal and 
incidental oral (for children only) post-application exposure to 
treated turf.
    Further information regarding EPA standard assumptions and generic 
inputs for residential exposures may be found at: https://www.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 indaziflam to share a common mechanism of 
toxicity with any other substances, and indaziflam does not appear to 
produce a toxic metabolite produced by other substances. For the 
purposes of this tolerance action, therefore, EPA has assumed that 
indaziflam 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 https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/cumulative-assessment-risk-pesticides.

C. 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 SF when reliable data 
available to EPA support the choice of a different factor.
    2. Prenatal and postnatal sensitivity. No evidence of increased 
quantitative or qualitative susceptibility was seen in developmental 
toxicity studies in rats and rabbits, a developmental toxicity study in 
rats, or in a reproduction study in rats. In the rat developmental 
toxicity study, decreased fetal weight was observed in the presence of 
maternal effects that included decreased body weight gain and food 
consumption. No developmental effects were observed in rabbits up to 
maternally toxic dose levels. Decreased pup weight and delays in sexual 
maturation (preputial separation in males and vaginal patency in 
females) were observed in the rat 2-generation reproductive toxicity 
study, along with clinical signs of toxicity, at a dose causing 
parental toxicity that included coarse tremors, renal toxicity and 
decreased weight gain. In the developmental neurotoxicity study, 
transiently decreased motor activity on post-natal day (PND) 21 only in 
male offspring was observed and was considered a potential neurotoxic 
effect. It was observed at a dose that also caused clinical signs of 
neurotoxicity

[[Page 8001]]

along with decreased body weight in maternal animals.
    3. Conclusion. EPA has determined that reliable data show that 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 indaziflam is complete.
    ii. Evidence of neurotoxicity was observed in dogs and rats 
throughout the database, which included the dog subchronic toxicity 
study, the rat subchronic toxicity, the rat acute, subchronic, and 
developmental neurotoxicity screening batteries, the rat 2-generation 
reproduction study, the rat chronic toxicity study, and the rat 
combined carcinogenicity/chronic toxicity study. Evidence of 
neurotoxicity was manifested as neuropathology in dogs and as decreased 
motor activity and clinical signs (e.g., tremors) in rats. Evidence of 
neurotoxicity was the most consistent effect (seen in dogs and rats), 
the most sensitive toxicological finding (based on neuropathology in 
dogs), and was therefore used as the adverse effect of concern in the 
risk assessment. The endpoints selected for risk assessment are based 
on and protective of the neurotoxic effects seen in the guideline 
studies.
    iii. No developmental effects were observed in rabbits up to 
maternally toxic dose levels. Offspring effects in the developmental 
neurotoxicity study in rats and multi-generation toxicity studies only 
occurred at exposure levels that also produced maternal toxicity and 
these offspring effects were not considered more severe than the 
parental effects. In addition, clear NOAELs/LOAELs were identified for 
these studies. Therefore, EPA concluded that there is no evidence of 
increased quantitative or qualitative susceptibility to rat or rabbit 
fetuses exposed in utero and/or postnatally to indaziflam.
    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 indaziflam 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 
indaziflam.

D. Aggregate Risks and Determination of Safety

    EPA determines whether acute and chronic dietary pesticide 
exposures are safe by comparing aggregate exposure estimates to the 
acute PAD (aPAD) and chronic PAD (cPAD). For linear cancer risks, EPA 
calculates the lifetime probability of acquiring cancer given the 
estimated aggregate exposure. Short-, intermediate-, and chronic-term 
risks are evaluated by comparing the estimated aggregate food, water, 
and residential exposure to the appropriate PODs to ensure that an 
adequate MOE exists.
    1. Acute risk. Using the exposure assumptions discussed in this 
document for acute exposure, the acute dietary exposure from food and 
water to indaziflam will occupy 19% of the aPAD for all infants, the 
population group receiving the greatest exposure.
    2. Chronic risk. Using the exposure assumptions described in this 
document for chronic exposure, EPA has concluded that chronic exposure 
to indaziflam from food and water will utilize 8% of the cPAD for all 
infants, the population group receiving the greatest exposure. Based on 
the explanation in the unit regarding residential use patterns, chronic 
residential exposure to residues of indaziflam 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).
    Indaziflam 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 indaziflam.
    Using the exposure assumptions described in this document for 
short-term exposures, EPA has concluded the combined short-term food, 
water, and residential exposures result in aggregate MOEs of 1,400 for 
adults and 580 for children. Because EPA's level of concern for 
indaziflam is a MOE of 100 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, 
indaziflam 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 
indaziflam.
    5. Aggregate cancer risk for U.S. population. Based on the lack of 
evidence of carcinogenicity in two adequate rodent carcinogenicity 
studies, indaziflam is not expected to pose a cancer risk to humans.
    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 indaziflam residues.

V. Other Considerations

A. Analytical Enforcement Methodology

    An adequate enforcement methodology (liquid chromatography with 
tandem mass spectrometry detection (LC/MS/MS) method (DH-003-P07-02) 
for indaziflam and FDAT) 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

[[Page 8002]]

EPA explain the reasons for departing from the Codex level.
    The Codex has not established MRLs for indaziflam.

VI. Conclusion

    Therefore, time-limited tolerances are established for residues of 
the herbicide indaziflam, N-[(1R,2S)-2,3-dihydro-2,6-dimethyl-1H-inden-
1-yl]-6-(1-fluoroethyl)-1,3,5-triazine-2,4-diamine, including its 
metabolites and degradates in or on grass, forage, fodder, and hay, 
group 17, forage at 30 parts per million (ppm) and grass, forage, 
fodder, and hay, group 17, hay at 100 ppm from use on rangeland, 
pastures, and areas subject to the CRP. These tolerances expire on 
December 31, 2020.

VII. Statutory and Executive Order Reviews

    This action establishes tolerances under FFDCA sections 408(e) and 
408(l)(6). The Office of Management and Budget (OMB) has exempted these 
types of actions from review under Executive Order 12866, entitled 
``Regulatory Planning and Review'' (58 FR 51735, October 4, 1993). 
Because this action has been exempted from review under Executive Order 
12866, this action is not subject to Executive Order 13211, entitled 
``Actions Concerning Regulations That Significantly Affect Energy 
Supply, Distribution, or Use'' (66 FR 28355, May 22, 2001) or Executive 
Order 13045, entitled ``Protection of Children from Environmental 
Health Risks and Safety Risks'' (62 FR 19885, April 23, 1997). This 
action does not contain any information collections subject to OMB 
approval under the Paperwork Reduction Act (PRA), 44 U.S.C. 3501 et 
seq., nor does it require any special considerations under Executive 
Order 12898, entitled ``Federal Actions to Address Environmental 
Justice in Minority Populations and Low-Income Populations'' (59 FR 
7629, February 16, 1994).
    Since tolerances and exemptions that are established in accordance 
with FFDCA sections 408(e) and 408(l)(6), 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).

VIII. Congressional Review Act

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

List of Subjects in 40 CFR Part 180

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

    Dated: February 6, 2018.
Michael L. Goodis,
Director, Registration Division, Office of Pesticide Programs.

    Therefore, 40 CFR chapter I is amended as follows:

PART 180--[AMENDED]

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

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


0
2. In Sec.  180.653, revise paragraph (b) to read as follows:


Sec.  [emsp14]180.653  Indaziflam; tolerances for residues.

* * * * *
    (b) Section 18 emergency exemptions. Time-limited tolerances 
specified in the following table are established for residues of the 
herbicide indaziflam, N-[(1R,2S)-2,3-dihydro-2,6-dimethyl-1H-inden-1-
yl]-6-(1-fluoroethyl)-1,3,5-triazine-2,4-diamine, including its 
metabolites and degradates in or on the specified agricultural 
commodities, resulting from use of the pesticide pursuant to FIFRA 
section 18 emergency exemptions. Compliance with the tolerance levels 
specified in the table in this paragraph (b) is to be determined by 
measuring only indaziflam and FDAT, 6-[(1R)-1-fluoroethyl]-1,3,5-
triazine-2,4-diamine (converted to parent equivalents), in or on the 
commodity. The tolerances expire on the date specified in the table.

------------------------------------------------------------------------
             Commodity              Parts per million   Expiration date
------------------------------------------------------------------------
Grass, forage, fodder, and hay,                    30         12/31/2020
 Group 17, forage.................
Grass, forage, fodder, and hay,                   100         12/31/2020
 Group 17, hay....................
------------------------------------------------------------------------

* * * * *
[FR Doc. 2018-03673 Filed 2-22-18; 8:45 am]
 BILLING CODE 6560-50-P



                                             7998              Federal Register / Vol. 83, No. 37 / Friday, February 23, 2018 / Rules and Regulations

                                             ENVIRONMENTAL PROTECTION                                SUPPLEMENTARY INFORMATION:                            pursuant to 40 CFR part 2 may be
                                             AGENCY                                                                                                        disclosed publicly by EPA without prior
                                                                                                     I. General Information
                                                                                                                                                           notice. Submit the non-CBI copy of your
                                             40 CFR Part 180                                         A. Does this action apply to me?                      objection or hearing request, identified
                                             [EPA–HQ–OPP–2017–0551; FRL–9973–10]                        You may be potentially affected by                 by docket ID number EPA–HQ–OPP–
                                                                                                     this action if you are an agricultural                2017–0551, by one of the following
                                             Indaziflam; Pesticide Tolerances for                    producer, food manufacturer, or                       methods:
                                             Emergency Exemptions                                    pesticide manufacturer. The following                   • Federal eRulemaking Portal: http://
                                                                                                     list of North American Industrial                     www.regulations.gov. Follow the online
                                             AGENCY:  Environmental Protection                                                                             instructions for submitting comments.
                                             Agency (EPA).                                           Classification System (NAICS) codes is
                                                                                                     not intended to be exhaustive, but rather             Do not submit electronically any
                                             ACTION: Final rule.                                                                                           information you consider to be CBI or
                                                                                                     provides a guide to help readers
                                                                                                     determine whether this document                       other information whose disclosure is
                                             SUMMARY:    This regulation establishes                                                                       restricted by statute.
                                             time-limited tolerances for residues of                 applies to them. Potentially affected
                                                                                                     entities may include:                                   • Mail: OPP Docket, Environmental
                                             indaziflam in or on rangeland, pastures,
                                                                                                        • Crop production (NAICS code 111).                Protection Agency Docket Center (EPA/
                                             and areas subject to the Conservation
                                                                                                        • Animal production (NAICS code                    DC), (28221T), 1200 Pennsylvania Ave.
                                             Reserve Program (CRP). This action is in
                                                                                                     112).                                                 NW, Washington, DC 20460–0001.
                                             response to EPA’s granting of an
                                                                                                        • Food manufacturing (NAICS code                     • Hand Delivery: To make special
                                             emergency exemption under the Federal
                                                                                                     311).                                                 arrangements for hand delivery or
                                             Insecticide, Fungicide, and Rodenticide
                                             Act (FIFRA) authorizing use of the                         • Pesticide manufacturing (NAICS                   delivery of boxed information, please
                                                                                                     code 32532).                                          follow the instructions at https://
                                             pesticide in or on grass, forage, fodder,
                                                                                                                                                           www.epa.gov/dockets/where-send-
                                             and hay, group 17, forage and grass,                    B. How can I get electronic access to                 comments-epa-dockets. Additional
                                             forage, fodder, and hay, group 17, hay,                 other related information?                            instructions on commenting or visiting
                                             grown in rangeland, pastures, and areas
                                                                                                       You may access a frequently updated                 the docket, along with more information
                                             subject to the CRP. This regulation
                                                                                                     electronic version of 40 CFR part 180                 about dockets generally, is available at
                                             establishes a maximum permissible
                                                                                                     through the Government Printing                       http://www.epa.gov/dockets.
                                             level for residues of indaziflam in or on
                                             these commodities. The time-limited                     Office’s e-CFR site at http://                        II. Background and Statutory Findings
                                             tolerances expire on December 31, 2020.                 www.ecfr.gov/cgi-bin/text-
                                                                                                     idx?&c=ecfr&tpl=/ecfrbrowse/Title40/                     EPA, on its own initiative, in
                                             DATES: This regulation is effective                                                                           accordance with FFDCA sections 408(e)
                                                                                                     40tab_02.tpl. To access the OCSPP test
                                             February 23, 2018. Objections and                                                                             and 408(l)(6) of, 21 U.S.C. 346a(e) and
                                                                                                     guidelines referenced in this document
                                             requests for hearings must be received                                                                        346a(1)(6), is establishing time-limited
                                                                                                     electronically, please go to https://
                                             on or before April 24, 2018, and must                                                                         tolerances for residues of the herbicide
                                                                                                     www.epa.gov/aboutepa/about-office-
                                             be filed in accordance with the                                                                               indaziflam, N-[(1R,2S)-2,3-dihydro-2,6-
                                                                                                     chemical-safety-and-pollution-
                                             instructions provided in 40 CFR part                                                                          dimethyl-1H-inden-1-yl]-6-(1-
                                                                                                     prevention-ocspp and select ‘‘Test
                                             178 (see also Unit I.C. of the                                                                                fluoroethyl)-1,3,5-triazine-2,4-diamine,
                                                                                                     Methods and Guidelines.’’
                                             SUPPLEMENTARY INFORMATION).                                                                                   including its metabolites and degradates
                                             ADDRESSES: The docket for this action,                  C. How can I file an objection or hearing             in or on grass, forage, fodder, and hay,
                                             identified by docket identification (ID)                request?                                              group 17, forage at 30 parts per million
                                             number EPA–HQ–OPP–2017–0551, is                           Under section 408(g) of the Federal                 (ppm) and grass, forage, fodder, and
                                             available at http://www.regulations.gov                 Food, Drug, and Cosmetic Act (FFDCA),                 hay, group 17, hay at 100 ppm from use
                                             or at the Office of Pesticide Programs                  21 U.S.C. 346a, any person may file an                on rangeland, pastures, and areas
                                             Regulatory Public Docket (OPP Docket)                   objection to any aspect of this regulation            subject to the CRP. These time-limited
                                             in the Environmental Protection Agency                  and may also request a hearing on those               tolerances expire on December 31, 2020.
                                             Docket Center (EPA/DC), West William                    objections. You must file your objection                 Section 408(l)(6) of FFDCA requires
                                             Jefferson Clinton Bldg., Rm. 3334, 1301                 or request a hearing on this regulation               EPA to establish a time-limited
                                             Constitution Ave. NW, Washington, DC                    in accordance with the instructions                   tolerance or exemption from the
                                             20460–0001. The Public Reading Room                     provided in 40 CFR part 178. To ensure                requirement for a tolerance for pesticide
                                             is open from 8:30 a.m. to 4:30 p.m.,                    proper receipt by EPA, you must                       chemical residues in food that will
                                             Monday through Friday, excluding legal                  identify docket ID number EPA–HQ–                     result from the use of a pesticide under
                                             holidays. The telephone number for the                  OPP–2017–0551 in the subject line on                  an emergency exemption granted by
                                             Public Reading Room is (202) 566–1744,                  the first page of your submission. All                EPA under FIFRA section 18. Such
                                             and the telephone number for the OPP                    objections and requests for a hearing                 tolerances can be established without
                                             Docket is (703) 305–5805. Please review                 must be in writing, and must be                       providing notice or period for public
                                             the visitor instructions and additional                 received by the Hearing Clerk on or                   comment. EPA does not intend for its
                                             information about the docket available                  before April 24, 2018. Addresses for                  actions on FIFRA section 18 related
                                             at http://www.epa.gov/dockets.                          mail and hand delivery of objections                  time-limited tolerances to set binding
                                             FOR FURTHER INFORMATION CONTACT:                        and hearing requests are provided in 40               precedents for the application of FFDCA
                                             Michael L. Goodis, Director,                            CFR 178.25(b).                                        section 408 and the safety standard to
                                             Registration Division (7505P), Office of                  In addition to filing an objection or               other tolerances and exemptions.
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                                             Pesticide Programs, Environmental                       hearing request with the Hearing Clerk                Section 408(e) of FFDCA allows EPA to
                                             Protection Agency, 1200 Pennsylvania                    as described in 40 CFR part 178, please               establish a tolerance or an exemption
                                             Ave. NW, Washington, DC 20460–0001;                     submit a copy of the filing (excluding                from the requirement of a tolerance on
                                             main telephone number: (703) 305–                       any Confidential Business Information                 its own initiative, i.e., without having
                                             7090; email address: RDFRNotices@                       (CBI)) for inclusion in the public docket.            received any petition from an outside
                                             epa.gov.                                                Information not marked confidential                   party.


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                                                               Federal Register / Vol. 83, No. 37 / Friday, February 23, 2018 / Rules and Regulations                                          7999

                                                Section 408(b)(2)(A)(i) of FFDCA                     State, and that the criteria for approval             IV. Aggregate Risk Assessment and
                                             allows EPA to establish a tolerance (the                of an emergency exemption are met.                    Determination of Safety
                                             legal limit for a pesticide chemical                      As part of its evaluation of the                      Consistent with the factors specified
                                             residue in or on a food) only if EPA                    emergency exemption application, EPA                  in FFDCA section 408(b)(2)(D), EPA has
                                             determines that the tolerance is ‘‘safe.’’              assessed the potential risks presented by             reviewed the available scientific data
                                             Section 408(b)(2)(A)(ii) of FFDCA                       residues of indaziflam in or on                       and other relevant information in
                                             defines ‘‘safe’’ to mean that ‘‘there is a              rangeland, pastures, and areas subject to             support of this action. EPA has
                                             reasonable certainty that no harm will                  the CRP. In doing so, EPA considered                  sufficient data to assess the hazards of,
                                             result from aggregate exposure to the                   the safety standard in FFDCA section                  and to make a determination on,
                                             pesticide chemical residue, including                   408(b)(2), and EPA decided that the                   aggregate exposure expected as a result
                                             all anticipated dietary exposures and all               necessary tolerances under FFDCA                      of this emergency exemption request
                                             other exposures for which there is                      section 408(l)(6) would be consistent                 and the time-limited tolerances for
                                             reliable information.’’ This includes                   with the safety standard and with                     residues of indaziflam on grass, forage,
                                             exposure through drinking water and in                  FIFRA section 18. Consistent with the                 fodder, and hay, group 17, forage at 30
                                             residential settings, but does not include              need to move quickly on the emergency                 ppm and grass, forage, fodder, and hay,
                                             occupational exposure. Section                          exemption in order to address an urgent,              group 17, hay at 100 ppm from use on
                                             408(b)(2)(C) of FFDCA requires EPA to                   non-routine situation and to ensure that              rangeland, pastures, and areas subject to
                                             give special consideration to exposure                  the resulting food is safe and lawful,                the CRP. EPA’s assessment of exposures
                                             of infants and children to the pesticide                EPA is issuing these tolerances without               and risks associated with establishing
                                             chemical residue in establishing a                      notice and opportunity for public                     time-limited tolerances follows.
                                             tolerance and to ‘‘ensure that there is a               comment as provided in FFDCA section
                                             reasonable certainty that no harm will                  408(l)(6). Although these time-limited                A. Toxicological Points of Departure/
                                             result to infants and children from                     tolerances expire on December 31, 2020,               Levels of Concern
                                             aggregate exposure to the pesticide                     under FFDCA section 408(l)(5), residues                  Once a pesticide’s toxicological
                                             chemical residue. . . .’’                               of the pesticide not in excess of the                 profile is determined, EPA identifies
                                                Section 18 of FIFRA authorizes EPA                   amounts specified in the tolerance                    toxicological points of departure (POD)
                                             to exempt any Federal or State agency                   remaining in or on grass, forage, fodder,             and levels of concern to use in
                                             from any provision of FIFRA, if EPA                     and hay, group 17, forage and grass,                  evaluating the risk posed by human
                                             determines that ‘‘emergency conditions                  forage, fodder, and hay, group 17, hay                exposure to the pesticide. For hazards
                                             exist which require such exemption.’’                   on rangeland, pastures, and areas                     that have a threshold below which there
                                             EPA has established regulations                         subject to the CRP after that date will               is no appreciable risk, the toxicological
                                             governing such emergency exemptions                     not be unlawful, provided the pesticide               POD is used as the basis for derivation
                                             in 40 CFR part 166.                                     was applied in a manner that was lawful               of reference values for risk assessment.
                                                                                                     under FIFRA, and the residues do not                  PODs are developed based on a careful
                                             III. Emergency Exemption for                            exceed a level that was authorized by
                                             Indaziflam on Rangeland, Pastures, and                                                                        analysis of the doses in each
                                                                                                     these time-limited tolerances at the time             toxicological study to determine the
                                             Areas Subject to the CRP                                of that application. EPA will take action             dose at which no adverse effects are
                                               The Wyoming Department of                             to revoke these time-limited tolerances               observed (the NOAEL) and the lowest
                                             Agriculture (WDA) requested a specific                  earlier if any experience with, scientific            dose at which adverse effects of concern
                                             emergency exemption for the use of                      data on, or other relevant information                are identified (the LOAEL). Uncertainty/
                                             indaziflam in rangeland, pastures, and                  on this pesticide indicate that the                   safety factors are used in conjunction
                                             areas subject to the conservation reserve               residues are not safe.                                with the POD to calculate a safe
                                             program (CRP) to control medusahead                       Because these time-limited tolerances               exposure level—generally referred to as
                                             (Taeniatherum caput-medusae) and                        are being approved under emergency                    a population-adjusted dose (PAD) or a
                                             ventenata (Ventenata dubia) in the                      conditions, EPA has not made any                      reference dose (RfD)—and a safe margin
                                             Wyoming counties of Sheridan,                           decisions about whether indaziflam                    of exposure (MOE). For non-threshold
                                             Johnson, Cambell, Crook, and Weston.                    meets FIFRA’s registration requirements               risks, the Agency assumes that any
                                             Medusahead and ventenata have                           for use on rangeland, pastures, and areas             amount of exposure will lead to some
                                             recently become established in                          subject to the CRP or whether                         degree of risk. Thus, the Agency
                                             Wyoming. These pests are potentially                    permanent tolerances for this use would               estimates risk in terms of the probability
                                             two of the greatest risks to Wyoming                    be appropriate. Under these                           of an occurrence of the adverse effect
                                             cattle production because they degrade                  circumstances, EPA does not believe                   expected in a lifetime. For more
                                             rangeland forage and hay production.                    that this time-limited tolerance decision             information on the general principles
                                             Medusahead has reduced forage                           serves as a basis for registration of                 EPA uses in risk characterization and a
                                             production by 80%. Visual assessments                   indaziflam by a State for special local               complete description of the risk
                                             of areas invaded by ventenata suggest it                needs under FIFRA section 24(c), nor                  assessment process, see https://
                                             offers very little forage. In addition to               does this tolerance by itself serve as the            www.epa.gov/pesticide-science-and-
                                             reducing the forage production,                         authority for persons in any State other              assessing-pesticide-risks.
                                             ventenata and medusahead also increase                  than Wyoming to use this pesticide on                    A summary of the toxicological
                                             forage silica content by 1.5 and 4 times                the applicable crops under FIFRA                      endpoints for indaziflam used for
                                             respectively. This produces poorer                      section 18, absent the issuance of an                 human risk assessment is discussed in
                                             quality forage that is less palatable and               emergency exemption applicable within
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                                                                                                                                                           Unit III.B. of the final rule published in
                                             harder for cattle to digest. If these pests             that State. For additional information                the Federal Register of January 29, 2014
                                             are not controlled, potential statewide                 regarding the emergency exemption for                 (79 FR 4624) (FRL–9903–88).
                                             invasion can happen in less than 25                     indaziflam, contact the Agency’s
                                             years. After having reviewed the                        Registration Division at the address                  B. Exposure Assessment
                                             submission, EPA determined that an                      provided under FOR FURTHER                              1. Dietary exposure from food and
                                             emergency condition exists for this                     INFORMATION CONTACT.                                  feed uses. In evaluating dietary


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                                             8000              Federal Register / Vol. 83, No. 37 / Friday, February 23, 2018 / Rules and Regulations

                                             exposure to indaziflam, EPA considered                     Modeled estimates of drinking water                substances that have a common
                                             exposure under the time-limited                         concentrations were directly entered                  mechanism of toxicity.’’
                                             tolerances established by this action as                into the dietary exposure model. For the                 EPA has not found indaziflam to
                                             well as all existing indaziflam                         acute dietary risk assessment, the water              share a common mechanism of toxicity
                                             tolerances in 40 CFR 180.653. EPA                       concentration value of 84 ppb was used                with any other substances, and
                                             assessed dietary exposures from                         to assess the contribution to drinking                indaziflam does not appear to produce
                                             indaziflam in food as follows:                          water. For chronic dietary risk                       a toxic metabolite produced by other
                                                i. Acute and chronic exposures. Acute                assessment, the water concentration                   substances. For the purposes of this
                                             effects were identified for indaziflam. In              value of 26 ppb was used to assess the                tolerance action, therefore, EPA has
                                             estimating acute and chronic dietary                    contribution to drinking water.                       assumed that indaziflam does not have
                                             exposures, EPA used food consumption                       3. From non-dietary exposure. The                  a common mechanism of toxicity with
                                             information from the United States                      term ‘‘residential exposure’’ is used in              other substances. For information
                                             Department of Agriculture (USDA)                        this document to refer to non-                        regarding EPA’s efforts to determine
                                             National Health and Nutrition                           occupational, non-dietary exposure                    which chemicals have a common
                                             Examination Survey, What We Eat in                      (e.g., for lawn and garden pest control,              mechanism of toxicity and to evaluate
                                             America, (NHANES/WWEIA). As to                          indoor pest control, termiticides, and                the cumulative effects of such
                                             residue levels in food, EPA notes that                  flea and tick control on pets).                       chemicals, see EPA’s website at https://
                                             previous indaziflam assessments used                       Indaziflam is currently registered for             www.epa.gov/pesticide-science-and-
                                             screening-level assessments which                       the following uses that could result in               assessing-pesticide-risks/cumulative-
                                             assumed tolerance-level residues and                    residential exposures: Turf, gardens,                 assessment-risk-pesticides.
                                             100% crop treated for all included                      and trees. EPA assessed residential                   C. Safety Factor for Infants and Children
                                             commodities. There are no uses on                       exposure using the following                             1. In general. Section 408(b)(2)(C) of
                                             human foods associated with this                        assumptions: Short-term dermal and                    FFDCA provides that EPA shall apply
                                             section 18 emergency use and there is                   inhalation handler exposure is expected               an additional tenfold (10X) margin of
                                             no expectation of quantifiable residues                 for adults as a result of applying                    safety for infants and children in the
                                             in livestock commodities. This                          products containing indaziflam to                     case of threshold effects to account for
                                             emergency exemption does not result in                  lawns/turf and gardens/trees using a                  prenatal and postnatal toxicity and the
                                             any changes to the previous dietary                     variety of application equipment. Short-              completeness of the database on toxicity
                                             exposure and risk estimates.                            term post-application dermal exposure                 and exposure unless EPA determines
                                                ii. Cancer. Based on the data                        is expected for adults, children 11 to 16,            based on reliable data that a different
                                             summarized in Unit IV.A., EPA has                       and children 6 to 11 years old as a result            margin of safety will be safe for infants
                                             concluded that indaziflam does not pose                 of playing, mowing and/or golfing on                  and children. This additional margin of
                                             a cancer risk to humans. Therefore, a                   treated turf. Short-term dermal and                   safety is commonly referred to as the
                                             dietary exposure assessment for the                     incidental oral exposures (hand to                    FQPA Safety Factor (SF). In applying
                                             purpose of assessing cancer risk is                     mouth, object to mouth, incidental soil               this provision, EPA either retains the
                                             unnecessary.                                            ingestion) are expected for children 1 to             default value of 10X, or uses a different
                                                iii. Anticipated residue and percent                 2 years old as a result from playing on               additional SF when reliable data
                                             crop treated (PCT) information. EPA did                 treated turf/lawns. Lastly, short-term                available to EPA support the choice of
                                             not use anticipated residue and/or PCT                  post-application dermal exposure is                   a different factor.
                                             information in the dietary assessment                   expected for adults and children 6 to 11                 2. Prenatal and postnatal sensitivity.
                                             for indaziflam. Tolerance level residues                years old as result of application to                 No evidence of increased quantitative or
                                             and 100% CT were assumed for all food                   gardens and trees. The Agency selected                qualitative susceptibility was seen in
                                             commodities.                                            only the most conservative residential                developmental toxicity studies in rats
                                                2. Dietary exposure from drinking                    adult and child scenarios to be included              and rabbits, a developmental toxicity
                                             water. The Agency used screening level                  in the aggregate estimates, based on the              study in rats, or in a reproduction study
                                             water exposure models in the dietary                    lowest overall MOE (i.e., highest risk                in rats. In the rat developmental toxicity
                                             exposure analysis and risk assessment                   estimates). The most conservative                     study, decreased fetal weight was
                                             for indaziflam in drinking water. These                 residential exposure scenario for both                observed in the presence of maternal
                                             simulation models take into account                     adults and children resulted from short-              effects that included decreased body
                                             data on the physical, chemical, and fate/               term dermal and incidental oral (for                  weight gain and food consumption. No
                                             transport characteristics of indaziflam.                children only) post-application                       developmental effects were observed in
                                             Further information regarding EPA                       exposure to treated turf.                             rabbits up to maternally toxic dose
                                             drinking water models used in pesticide                    Further information regarding EPA                  levels. Decreased pup weight and delays
                                             exposure assessment can be found at                     standard assumptions and generic                      in sexual maturation (preputial
                                             https://www.epa.gov/pesticide-science-                  inputs for residential exposures may be               separation in males and vaginal patency
                                             and-assessing-pesticide-risks/about-                    found at: https://www.epa.gov/                        in females) were observed in the rat 2-
                                             water-exposure-models-used-pesticide.                   pesticide-science-and-assessing-                      generation reproductive toxicity study,
                                                Based on the Pesticide in Water                      pesticide-risks/standard-operating-                   along with clinical signs of toxicity, at
                                             Calculator (PWC) and the Tier 1 Rice                    procedures-residential-pesticide.                     a dose causing parental toxicity that
                                             model, the estimated drinking water                        4. Cumulative effects from substances              included coarse tremors, renal toxicity
                                             concentrations (EDWCs) of indaziflam                    with a common mechanism of toxicity.                  and decreased weight gain. In the
                                             for acute exposures are estimated to be                 Section 408(b)(2)(D)(v) of FFDCA                      developmental neurotoxicity study,
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                                             84 parts per billion (ppb) for surface                  requires that, when considering whether               transiently decreased motor activity on
                                             water and 3.7 ppb for ground water. For                 to establish, modify, or revoke a                     post-natal day (PND) 21 only in male
                                             chronic exposures for non-cancer                        tolerance, the Agency consider                        offspring was observed and was
                                             assessments are estimated to be 26 ppb                  ‘‘available information’’ concerning the              considered a potential neurotoxic effect.
                                             for surface water and 3.7 ppb for ground                cumulative effects of a particular                    It was observed at a dose that also
                                             water.                                                  pesticide’s residues and ‘‘other                      caused clinical signs of neurotoxicity


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                                                               Federal Register / Vol. 83, No. 37 / Friday, February 23, 2018 / Rules and Regulations                                         8001

                                             along with decreased body weight in                     D. Aggregate Risks and Determination of               residential exposure. Intermediate-term
                                             maternal animals.                                       Safety                                                risk is assessed based on intermediate-
                                                3. Conclusion. EPA has determined                       EPA determines whether acute and                   term residential exposure plus chronic
                                             that reliable data show that the safety of              chronic dietary pesticide exposures are               dietary exposure. Because there is no
                                             infants and children would be                           safe by comparing aggregate exposure                  intermediate-term residential exposure
                                             adequately protected if the FQPA SF                     estimates to the acute PAD (aPAD) and                 and chronic dietary exposure has
                                             were reduced to 1X. That decision is                    chronic PAD (cPAD). For linear cancer                 already been assessed under the
                                             based on the following findings:                        risks, EPA calculates the lifetime                    appropriately protective cPAD (which is
                                                                                                     probability of acquiring cancer given the             at least as protective as the POD used to
                                                i. The toxicity database for indaziflam                                                                    assess intermediate-term risk), no
                                             is complete.                                            estimated aggregate exposure. Short-,
                                                                                                     intermediate-, and chronic-term risks                 further assessment of intermediate-term
                                                ii. Evidence of neurotoxicity was                    are evaluated by comparing the                        risk is necessary, and EPA relies on the
                                             observed in dogs and rats throughout                    estimated aggregate food, water, and                  chronic dietary risk assessment for
                                             the database, which included the dog                    residential exposure to the appropriate               evaluating intermediate-term risk for
                                             subchronic toxicity study, the rat                      PODs to ensure that an adequate MOE                   indaziflam.
                                             subchronic toxicity, the rat acute,                     exists.                                                  5. Aggregate cancer risk for U.S.
                                             subchronic, and developmental                              1. Acute risk. Using the exposure                  population. Based on the lack of
                                             neurotoxicity screening batteries, the rat              assumptions discussed in this document                evidence of carcinogenicity in two
                                             2-generation reproduction study, the rat                for acute exposure, the acute dietary                 adequate rodent carcinogenicity studies,
                                             chronic toxicity study, and the rat                     exposure from food and water to                       indaziflam is not expected to pose a
                                             combined carcinogenicity/chronic                        indaziflam will occupy 19% of the                     cancer risk to humans.
                                             toxicity study. Evidence of                             aPAD for all infants, the population                     6. Determination of safety. Based on
                                             neurotoxicity was manifested as                         group receiving the greatest exposure.                these risk assessments, EPA concludes
                                             neuropathology in dogs and as                              2. Chronic risk. Using the exposure                that there is a reasonable certainty that
                                             decreased motor activity and clinical                   assumptions described in this document                no harm will result to the general
                                             signs (e.g., tremors) in rats. Evidence of              for chronic exposure, EPA has                         population, or to infants and children,
                                             neurotoxicity was the most consistent                   concluded that chronic exposure to                    from aggregate exposure to indaziflam
                                             effect (seen in dogs and rats), the most                indaziflam from food and water will                   residues.
                                             sensitive toxicological finding (based on               utilize 8% of the cPAD for all infants,               V. Other Considerations
                                             neuropathology in dogs), and was                        the population group receiving the
                                             therefore used as the adverse effect of                 greatest exposure. Based on the                       A. Analytical Enforcement Methodology
                                             concern in the risk assessment. The                     explanation in the unit regarding                        An adequate enforcement
                                             endpoints selected for risk assessment                  residential use patterns, chronic                     methodology (liquid chromatography
                                             are based on and protective of the                      residential exposure to residues of                   with tandem mass spectrometry
                                             neurotoxic effects seen in the guideline                indaziflam is not expected.                           detection (LC/MS/MS) method (DH–
                                             studies.                                                   3. Short-term risk. Short-term                     003–P07–02) for indaziflam and FDAT)
                                                iii. No developmental effects were                   aggregate exposure takes into account                 is available to enforce the tolerance
                                             observed in rabbits up to maternally                    short-term residential exposure plus                  expression.
                                             toxic dose levels. Offspring effects in the             chronic exposure to food and water                       The method may be requested from:
                                             developmental neurotoxicity study in                    (considered to be a background                        Chief, Analytical Chemistry Branch,
                                             rats and multi-generation toxicity                      exposure level).                                      Environmental Science Center, 701
                                             studies only occurred at exposure levels                   Indaziflam is currently registered for             Mapes Rd., Ft. Meade, MD 20755–5350;
                                             that also produced maternal toxicity and                uses that could result in short-term                  telephone number: (410) 305–2905;
                                             these offspring effects were not                        residential exposure, and the Agency                  email address: residuemethods@
                                             considered more severe than the                         has determined that it is appropriate to              epa.gov.
                                             parental effects. In addition, clear                    aggregate chronic exposure through food
                                                                                                     and water with short-term residential                 B. International Residue Limits
                                             NOAELs/LOAELs were identified for
                                                                                                     exposures to indaziflam.                                In making its tolerance decisions, EPA
                                             these studies. Therefore, EPA concluded
                                                                                                        Using the exposure assumptions                     seeks to harmonize U.S. tolerances with
                                             that there is no evidence of increased
                                                                                                     described in this document for short-                 international standards whenever
                                             quantitative or qualitative susceptibility
                                                                                                     term exposures, EPA has concluded the                 possible, consistent with U.S. food
                                             to rat or rabbit fetuses exposed in utero
                                                                                                     combined short-term food, water, and                  safety standards and agricultural
                                             and/or postnatally to indaziflam.                                                                             practices. EPA considers the
                                                                                                     residential exposures result in aggregate
                                                iv. There are no residual uncertainties              MOEs of 1,400 for adults and 580 for                  international maximum residue limits
                                             identified in the exposure databases.                   children. Because EPA’s level of                      (MRLs) established by the Codex
                                             The dietary food exposure assessments                   concern for indaziflam is a MOE of 100                Alimentarius Commission (Codex), as
                                             were performed based on 100 PCT and                     or below, these MOEs are not of                       required by FFDCA section 408(b)(4).
                                             tolerance-level residues. EPA made                      concern.                                              The Codex Alimentarius is a joint
                                             conservative (protective) assumptions in                   4. Intermediate-term risk.                         United Nations Food and Agriculture
                                             the ground and surface water modeling                   Intermediate-term aggregate exposure                  Organization/World Health
                                             used to assess exposure to indaziflam in                takes into account intermediate-term                  Organization food standards program,
                                             drinking water. EPA used similarly                      residential exposure plus chronic                     and it is recognized as an international
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                                             conservative assumptions to assess post-                exposure to food and water (considered                food safety standards-setting
                                             application exposure of children as well                to be a background exposure level).                   organization in trade agreements to
                                             as incidental oral exposure of toddlers.                   An intermediate-term adverse effect                which the United States is a party. EPA
                                             These assessments will not                              was identified; however, indaziflam is                may establish a tolerance that is
                                             underestimate the exposure and risks                    not registered for any use patterns that              different from a Codex MRL; however,
                                             posed by indaziflam.                                    would result in intermediate-term                     FFDCA section 408(b)(4) requires that


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                                             8002                  Federal Register / Vol. 83, No. 37 / Friday, February 23, 2018 / Rules and Regulations

                                             EPA explain the reasons for departing                              Since tolerances and exemptions that                          Representatives, and the Comptroller
                                             from the Codex level.                                           are established in accordance with                               General of the United States prior to
                                                The Codex has not established MRLs                           FFDCA sections 408(e) and 408(l)(6),                             publication of the rule in the Federal
                                             for indaziflam.                                                 such as the tolerances in this final rule,                       Register. This action is not a ‘‘major
                                             VI. Conclusion                                                  do not require the issuance of a                                 rule’’ as defined by 5 U.S.C. 804(2).
                                                                                                             proposed rule, the requirements of the
                                                Therefore, time-limited tolerances are                       Regulatory Flexibility Act (RFA) (5                              List of Subjects in 40 CFR Part 180
                                             established for residues of the herbicide                       U.S.C. 601 et seq.) do not apply.                                  Environmental protection,
                                             indaziflam, N-[(1R,2S)-2,3-dihydro-2,6-                            This action directly regulates growers,                       Administrative practice and procedure,
                                             dimethyl-1H-inden-1-yl]-6-(1-                                   food processors, food handlers, and food                         Agricultural commodities, Pesticides
                                             fluoroethyl)-1,3,5-triazine-2,4-diamine,                        retailers, not States or tribes, nor does                        and pests, Reporting and recordkeeping
                                             including its metabolites and degradates                        this action alter the relationships or                           requirements.
                                             in or on grass, forage, fodder, and hay,                        distribution of power and
                                             group 17, forage at 30 parts per million                                                                                           Dated: February 6, 2018.
                                                                                                             responsibilities established by Congress
                                             (ppm) and grass, forage, fodder, and                            in the preemption provisions of FFDCA                            Michael L. Goodis,
                                             hay, group 17, hay at 100 ppm from use                          section 408(n)(4). As such, the Agency                           Director, Registration Division, Office of
                                             on rangeland, pastures, and areas                               has determined that this action will not                         Pesticide Programs.
                                             subject to the CRP. These tolerances                            have a substantial direct effect on States                         Therefore, 40 CFR chapter I is
                                             expire on December 31, 2020.                                    or tribal governments, on the                                    amended as follows:
                                             VII. Statutory and Executive Order                              relationship between the national
                                             Reviews                                                         government and the States or tribal                              PART 180—[AMENDED]
                                                                                                             governments, or on the distribution of
                                                This action establishes tolerances                           power and responsibilities among the                             ■ 1. The authority citation for part 180
                                             under FFDCA sections 408(e) and                                 various levels of government or between                          continues to read as follows:
                                             408(l)(6). The Office of Management and                         the Federal Government and Indian
                                             Budget (OMB) has exempted these types                                                                                                Authority: 21 U.S.C. 321(q), 346a and 371.
                                                                                                             tribes. Thus, the Agency has determined
                                             of actions from review under Executive                          that Executive Order 13132, entitled                             ■ 2. In § 180.653, revise paragraph (b) to
                                             Order 12866, entitled ‘‘Regulatory                              ‘‘Federalism’’ (64 FR 43255, August 10,                          read as follows:
                                             Planning and Review’’ (58 FR 51735,                             1999) and Executive Order 13175,
                                             October 4, 1993). Because this action                                                                                            § 180.653     Indaziflam; tolerances for
                                                                                                             entitled ‘‘Consultation and Coordination                         residues.
                                             has been exempted from review under                             with Indian Tribal Governments’’ (65 FR
                                             Executive Order 12866, this action is                           67249, November 9, 2000) do not apply                            *      *     *    *     *
                                             not subject to Executive Order 13211,                           to this action. In addition, this action                            (b) Section 18 emergency exemptions.
                                             entitled ‘‘Actions Concerning                                   does not impose any enforceable duty or                          Time-limited tolerances specified in the
                                             Regulations That Significantly Affect                           contain any unfunded mandate as                                  following table are established for
                                             Energy Supply, Distribution, or Use’’ (66                       described under Title II of the Unfunded                         residues of the herbicide indaziflam, N-
                                             FR 28355, May 22, 2001) or Executive                            Mandates Reform Act (UMRA) (2 U.S.C.                             [(1R,2S)-2,3-dihydro-2,6-dimethyl-1H-
                                             Order 13045, entitled ‘‘Protection of                           1501 et seq.).                                                   inden-1-yl]-6-(1-fluoroethyl)-1,3,5-
                                             Children from Environmental Health                                 This action does not involve any                              triazine-2,4-diamine, including its
                                             Risks and Safety Risks’’ (62 FR 19885,                          technical standards that would require                           metabolites and degradates in or on the
                                             April 23, 1997). This action does not                           Agency consideration of voluntary                                specified agricultural commodities,
                                             contain any information collections                             consensus standards pursuant to section                          resulting from use of the pesticide
                                             subject to OMB approval under the                               12(d) of the National Technology                                 pursuant to FIFRA section 18
                                             Paperwork Reduction Act (PRA), 44                               Transfer and Advancement Act                                     emergency exemptions. Compliance
                                             U.S.C. 3501 et seq., nor does it require                        (NTTAA) (15 U.S.C. 272 note).                                    with the tolerance levels specified in the
                                             any special considerations under                                                                                                 table in this paragraph (b) is to be
                                             Executive Order 12898, entitled                                 VIII. Congressional Review Act                                   determined by measuring only
                                             ‘‘Federal Actions to Address                                      Pursuant to the Congressional Review                           indaziflam and FDAT, 6-[(1R)-1-
                                             Environmental Justice in Minority                               Act (5 U.S.C. 801 et seq.), EPA will                             fluoroethyl]-1,3,5-triazine-2,4-diamine
                                             Populations and Low-Income                                      submit a report containing this rule and                         (converted to parent equivalents), in or
                                             Populations’’ (59 FR 7629, February 16,                         other required information to the U.S.                           on the commodity. The tolerances
                                             1994).                                                          Senate, the U.S. House of                                        expire on the date specified in the table.

                                                                                                                                                                                            Parts per
                                                                                                         Commodity                                                                                            Expiration date
                                                                                                                                                                                             million

                                             Grass, forage, fodder, and hay, Group 17, forage ......................................................................................                     30        12/31/2020
                                             Grass, forage, fodder, and hay, Group 17, hay ..........................................................................................                   100        12/31/2020



                                             *       *       *        *       *
                                             [FR Doc. 2018–03673 Filed 2–22–18; 8:45 am]
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                                             BILLING CODE 6560–50–P




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Document Created: 2018-02-23 01:32:49
Document Modified: 2018-02-23 01:32:49
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 23, 2018. Objections and requests for hearings must be received on or before April 24, 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 7998 
CFR AssociatedEnvironmental Protection; Administrative Practice and Procedure; Agricultural Commodities; Pesticides and Pests and Reporting and Recordkeeping Requirements

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