83_FR_22950 83 FR 22854 - Pyroxasulfone; Pesticide Tolerances

83 FR 22854 - Pyroxasulfone; Pesticide Tolerances

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 83, Issue 96 (May 17, 2018)

Page Range22854-22859
FR Document2018-10582

This regulation establishes tolerances for residues of pyroxasulfone and its metabolites in or on vegetable, tuberous and corm, subgroup 1C; vegetable, bulb, group 3-07; and potatoes, granules/ flakes. K-I Chemical USA, Inc. requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).

Federal Register, Volume 83 Issue 96 (Thursday, May 17, 2018)
[Federal Register Volume 83, Number 96 (Thursday, May 17, 2018)]
[Rules and Regulations]
[Pages 22854-22859]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-10582]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2015-0787; FRL-9977-25]


Pyroxasulfone; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This regulation establishes tolerances for residues of 
pyroxasulfone and its metabolites in or on vegetable, tuberous and 
corm, subgroup 1C; vegetable, bulb, group 3-07; and potatoes, granules/
flakes. K-I Chemical USA, Inc. requested these tolerances under the 
Federal Food, Drug, and Cosmetic Act (FFDCA).

DATES: This regulation is effective May 17, 2018. Objections and 
requests for hearings must be received on or before July 16, 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-2015-0787, is available at http://www.regulations.gov or at the Office of Pesticide Programs Regulatory 
Public Docket (OPP Docket) in the Environmental Protection Agency 
Docket Center (EPA/DC), West William Jefferson Clinton Bldg., Rm. 3334, 
1301 Constitution Ave. NW, Washington, DC 20460-0001. The Public 
Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through 
Friday, excluding legal holidays. The telephone number for the Public 
Reading Room is (202) 566-1744, and the telephone number for the OPP 
Docket is (703) 305-5805. Please review the visitor instructions and 
additional information about the docket available at http://www.epa.gov/dockets.

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

SUPPLEMENTARY INFORMATION:

I. General Information

A. Does this action apply to me?

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

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

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

[[Page 22855]]

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

    Under FFDCA section 408(g), 21 U.S.C. 346a, any person may file an 
objection to any aspect of this regulation and may also request a 
hearing on those objections. You must file your objection or request a 
hearing on this regulation in accordance with the instructions provided 
in 40 CFR part 178. To ensure proper receipt by EPA, you must identify 
docket ID number EPA-HQ-OPP-2015-0787 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 
July 16, 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-2015-0787, by one of 
the following methods:
     Federal eRulemaking Portal: http://www.regulations.gov. 
Follow the online instructions for submitting comments. Do not submit 
electronically any information you consider to be CBI or other 
information whose disclosure is restricted by statute.
     Mail: OPP Docket, Environmental Protection Agency Docket 
Center (EPA/DC), (28221T), 1200 Pennsylvania Ave. NW, Washington, DC 
20460-0001.
     Hand Delivery: To make special arrangements for hand 
delivery or delivery of boxed information, please follow the 
instructions at http://www.epa.gov/dockets/contacts.html.
    Additional instructions on commenting or visiting the docket, along 
with more information about dockets generally, is available at http://www.epa.gov/dockets.

II. Summary of Petitioned-For Tolerance

    In the Federal Register of January 26, 2018 (83 FR 3659) (FRL-9971-
46), EPA issued a document pursuant to FFDCA section 408(d)(3), 21 
U.S.C. 346a(d)(3), announcing the filing of a pesticide petition (PP 
5F8521) by K-I Chemical USA, Inc., 11 Martine Ave., Suite 970, White 
Plains, NY 10606. The petition requested that 40 CFR part 180.659 be 
amended by establishing tolerances for residues of the herbicide 
pyroxasulfone, (3-[5-(difluoromethoxy)-1-methyl-3-
(trifluoromethyl)pyrazol-4-yl methylsulfonyl]-4,5-dihydro-5,5-dimethyl-
1,2-oxazole) in or on Crop Subgroup 1C, tuberous and corm vegetables 
(except granular/flakes and chips) at 0.05 parts per million (ppm); 
Crop Subgroup 3-07, bulb vegetables at 0.15 ppm; potatoes, granular/
flakes at 0.3 ppm; and potato chips at 0.06 ppm. That document 
referenced a summary of the petition prepared by K-I Chemical USA, 
Inc., the registrant, which is available in the docket, http://www.regulations.gov. No comments were received in response to the 
notice of filing.
    Because the January 26, 2018, document identified the K-I Chemical 
petition by the wrong petition number, EPA published another document 
in the Federal Register assigning the correct petition number to the K-
I Chemical petition--PP6F8521. That document was published in the 
Federal Register on March 15, 2018 (83 FR 11448) (FRL-9974-72). No 
relevant comments were received on the notice of filing.
    Based upon review of the data supporting the petition, EPA has 
modified the levels at which some of the tolerances are being 
established and also modified some of the crop definitions. The reasons 
for these changes are explained in Unit IV.C.

III. Aggregate Risk Assessment and Determination of Safety

    Section 408(b)(2)(A)(i) of FFDCA allows EPA to establish a 
tolerance (the legal limit for a pesticide chemical residue in or on a 
food) only if EPA determines that the tolerance is ``safe.'' Section 
408(b)(2)(A)(ii) of FFDCA defines ``safe'' to mean that ``there is a 
reasonable certainty that no harm will result from aggregate exposure 
to the pesticide chemical residue, including all anticipated dietary 
exposures and all other exposures for which there is reliable 
information.'' This includes exposure through drinking water and in 
residential settings, but does not include occupational exposure. 
Section 408(b)(2)(C) of FFDCA requires EPA to give special 
consideration to exposure of infants and children to the pesticide 
chemical residue in establishing a tolerance and to ``ensure that there 
is a reasonable certainty that no harm will result to infants and 
children from aggregate exposure to the pesticide chemical residue. . . 
.''
    Consistent with FFDCA section 408(b)(2)(D), and the factors 
specified in FFDCA section 408(b)(2)(D), EPA has reviewed the available 
scientific data and other relevant information in support of this 
action. EPA has sufficient data to assess the hazards of and to make a 
determination on aggregate exposure for pyroxasulfone including 
exposure resulting from the tolerances established by this action. 
EPA's assessment of exposures and risks associated with pyroxasulfone 
follows.

A. Toxicological Profile

    EPA has evaluated the available toxicity data and considered its 
validity, completeness, and reliability as well as the relationship of 
the results of the studies to human risk. EPA has also considered 
available information concerning the variability of the sensitivities 
of major identifiable subgroups of consumers, including infants and 
children.
    The toxicology database for pyroxasulfone is adequate for 
evaluating and characterizing toxicity and selecting endpoints for 
purposes of this risk assessment. Pyroxasulfone acute toxicity to 
mammals is low by all routes of exposure. Subchronic and chronic oral 
studies in mice, rats and dogs produced a variety of effects including 
cardiac toxicity (increased cardiomyopathy), liver toxicity 
(centrilobular hepatocellular hypertrophy, histopathological and/or 
clinical pathological indicators), kidney toxicity (nephropathy), 
neurotoxicity (impaired hind limb function, ataxia, tremors, sciatic 
nerve lesions, axonal/myelin degeneration in the sciatic nerve and 
spinal cord sections), skeletal muscle myopathy, urinary bladder 
mucosal hyperplasia, and urinary bladder transitional cell papillomas. 
Minimal to mild cardiac myofiber degeneration and local inflammation 
were also seen in a rat dermal toxicity study. Neurotoxicity was also 
seen in a developmental neurotoxicity study in rats (decreased brain 
weight, decreased thickness of the hippocampus, corpus callosum and 
cerebellum in offspring). Dogs appear to be the most sensitive species 
to the neurotoxic effects of pyroxasulfone. Immunotoxicity studies in 
rats and mice show no evidence of immunotoxic effects from 
pyroxasulfone.
    There is evidence of fetal and offspring susceptibility in the 
developmental neurotoxicity study in rats as effects occurred in the 
absence of maternal toxicity. There is no concern for reproductive 
toxicity. Pyroxasulfone is classified as ``Not Likely to be 
Carcinogenic to Humans'' at doses that do not cause crystals with 
subsequent calculi formation resulting in cellular damage of the 
urinary tract. The Agency has determined that the quantification

[[Page 22856]]

of risk using a non-linear approach (i.e., reference dose (RfD)) will 
adequately account for all chronic toxicity, including carcinogenicity, 
that could result from exposure to pyroxasulfone.
    Specific information on the studies received and the nature of the 
adverse effects caused by pyroxasulfone as the no-observed-adverse 
effect level (NOAEL) and lowest-observed adverse effect level (LOAEL) 
from the toxicity studies can be found at http://www.regulations.gov in 
document ``Pyroxasulfone Human Health Risk Assessment for the Section 3 
New Uses of Pyroxasulfone on Crop Subgroup 1C, tuberous and corm 
vegetables and Crop Group 3-07, bulb vegetables'' at pages 39-53 in 
docket ID number EPA-HQ-OPP-2015-0787.

B. Toxicological Points of Departure/Levels of Concern

    Once a pesticide's toxicological profile is determined, EPA 
identifies toxicological points of departure (POD) and levels of 
concern to use in evaluating the risk posed by human exposure to the 
pesticide. For hazards that have a threshold below which there is no 
appreciable risk, the toxicological POD is used as the basis for 
derivation of reference values for risk assessment. PODs are developed 
based on a careful analysis of the doses in each toxicological study to 
determine the dose at which the NOAEL and the LOAEL are identified. 
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 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 use https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/assessing-human-health-risk-pesticides.
    A summary of the toxicological endpoints for pyroxasulfone used for 
human risk assessment is shown in the Table 1 of this unit.

  Table 1--Toxicological Doses and Endpoints for Pyroxasulfone for Use in Dietary Human Health Risk Assessments
----------------------------------------------------------------------------------------------------------------
                                      Point of      Uncertainty/ FQPA                            Study and
       Exposure/scenario             departure        safety factors       RfD & PAD       toxicological effects
----------------------------------------------------------------------------------------------------------------
Acute Dietary (General           NOAEL= 100 mg/kg.  UFA= 10x.........  Acute RfD = 1.0    Developmental
 Population, including Infants                      UFH=10x..........   mg/kg.             neurotoxicity study
 and Children).                                     FQPA SF=1x.......  aPAD = 1.0 mg/kg.   (DNT) in rats.
                                                                                          The LOAEL of 300 mg/kg/
                                                                                           day is based on
                                                                                           decreased brain
                                                                                           weight in both sexes,
                                                                                           reduced thickness of
                                                                                           the hippocampus,
                                                                                           corpus callosum and
                                                                                           cerebellum in
                                                                                           postnatal day (PND)
                                                                                           21 female offspring.
Chronic Dietary (All             NOAEL= 2 mg/kg/    UFA= 10x.........  Chronic RfD =      One- year chronic dog
 Populations).                    day.              UFH=10x..........   0.02 mg/kg/day.    study
                                                    FQPA SF=1x.......  cPAD = 0.02 mg/kg/ The LOAEL of 10 mg/kg/
                                                                        day.               day is based on
                                                                                           impaired hind limb
                                                                                           function, ataxia,
                                                                                           hind limb twitching
                                                                                           and tremors; clinical
                                                                                           pathology: increased
                                                                                           creatine kinase,
                                                                                           aspartate
                                                                                           aminotransferase;
                                                                                           axonal/myelin
                                                                                           degeneration of the
                                                                                           sciatic nerve and
                                                                                           spinal cord sections.
                                --------------------------------------------------------------------------------
Cancer (all routes)............  ``Not Likely to be Carcinogenic to Humans'' at doses that do not cause crystals
                                  with subsequent calculi formation resulting in cellular damage of the urinary
                                  tract. Risk is quantified using a non-linear (i.e., RfD) approach.
----------------------------------------------------------------------------------------------------------------
Point of Departure (POD) = A data point or an estimated point that is derived from observed dose-response data
  and used to mark the beginning of extrapolation to determine risk associated with lower environmentally
  relevant human exposures. NOAEL = no observed adverse effect level. LOAEL = lowest observed adverse effect
  level. UF = uncertainty factor. UFA = extrapolation from animal to human (interspecies). UFH = potential
  variation in sensitivity among members of the human population (intraspecies). FQPA SF = FQPA Safety Factor.
  PAD = population adjusted dose (a = acute, c = chronic). RfD = reference dose. MOE = margin of exposure. LOC =
  level of concern. N/A = not applicable.

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to pyroxasulfone, EPA considered exposure under the 
petitioned-for tolerances as well as all existing pyroxasulfone 
tolerances in 40 CFR 180.659. EPA assessed dietary exposures from 
pyroxasulfone in food as follows:
    i. Acute exposure. Quantitative acute dietary exposure and risk 
assessments are performed for a food-use pesticide, if a toxicological 
study has indicated the possibility of an effect of concern occurring 
as a result of a 1-day or single exposure.
    Such effects were identified for pyroxasulfone. In estimating acute 
dietary exposure, EPA used food consumption data from the United States 
Department of Agriculture (USDA) 2003-2008 National Health and 
Nutrition Examination Survey/What We Eat in America (NHANES/WWEIA). As 
to residue levels in food, EPA assumed 100 percent crop treated (PCT) 
and tolerance-level residues adjusted for metabolites which are not in 
the tolerance expression.
    ii. Chronic exposure. In conducting the chronic dietary exposure 
assessment EPA used the food consumption data from the USDA 2003-2008 
(NHANES/WWEIA). As to residue levels in food, EPA assumed 100 PCT and 
tolerance-level residues adjusted for metabolites which are not in the 
tolerance expression.
    iii. Cancer. Based on the data summarized in Unit III.A., EPA has 
classified pyroxasulfone as ``Not Likely to be Carcinogenic to Humans'' 
at doses that do not cause crystals with subsequent calculi formation 
resulting in cellular damage of the urinary tract. The Agency has 
determined that the quantification of risk using a non-linear approach 
(i.e., RfD) will adequately account for all chronic toxicity, including 
carcinogenicity, that could result from exposure to pyroxasulfone.
    iv. Anticipated residue and percent crop treated (PCT) information. 
EPA did not use anticipated residue and PCT information in the dietary 
assessment for pyroxasulfone. Tolerance-level residues and 100% crop 
treated (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 pyroxasulfone in drinking water. These simulation models 
take into

[[Page 22857]]

account data on the physical, chemical, and fate/transport 
characteristics of pyroxasulfone. Further information regarding EPA 
drinking water models used in pesticide exposure assessment can be 
found at at https://www.epa.gov/pesticide-science-and-assessing-pesticide-risks/assessing-human-health-riskpesticides.
    Based on the Pesticide Root Zone Model Ground Water (PRZM version 
3.122)/Exposure Analysis Modeling System-Superseded (EXAMS version 
2.98.04), the estimated concentrations of pyroxasulfone in surface 
water were minimal, and the highest estimated drinking water 
concentrations (EDWCs) of pyroxasulfone residues were from a Tier II 
PRZM-GW modeling at an application rate of 0.267 lbs active ingredient/
Acre for registered crops. The same EDWCs have been used for the 
current human health dietary risk assessment. The EDWCs for peak 
concentration (used in the acute assessment) and 30-year average 
concentration (used in the chronic assessment) were 0.210 and 0.174 mg/
L (ppm), respectively. Water residues were incorporated in the Dietary 
Exposure Evaluation Model--Food Commodity Intake Database (DEEM-FCID) 
into the food categories ``water, direct, all sources'' and ``water, 
indirect, all sources.''
    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).
    Pyroxasulfone is not registered for any specific use patterns that 
would result in residential exposure.
    4. Cumulative effects from substances with a common mechanism of 
toxicity. Section 408(b)(2)(D)(v) of FFDCA requires that, when 
considering whether to establish, modify, or revoke a tolerance, the 
Agency consider ``available information'' concerning the cumulative 
effects of a particular pesticide's residues and ``other substances 
that have a common mechanism of toxicity.''
    EPA has not found pyroxasulfone to share a common mechanism of 
toxicity with any other substances, and pyroxasulfone does not appear 
to produce a toxic metabolite produced by other substances. For the 
purposes of this tolerance action, therefore, EPA has assumed that 
pyroxasulfone 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/assessing-human-health-riskpesticides.

D. Safety Factor for Infants and Children

    1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA 
shall apply an additional tenfold (10X) margin of safety for infants 
and children in the case of threshold effects to account for prenatal 
and postnatal toxicity and the completeness of the database on toxicity 
and exposure unless EPA determines based on reliable data that a 
different margin of safety will be safe for infants and children. This 
additional margin of safety is commonly referred to as the FQPA SF. In 
applying this provision, EPA either retains the default value of 10X, 
or uses a different additional safety factor when reliable data 
available to EPA support the choice of a different factor.
    2. Prenatal and postnatal sensitivity. Pyroxasulfone did not 
exhibit developmental toxicity in the rat guideline study at the limit 
dose of 1,000 mg/kg/day and it exhibited slight developmental toxicity 
in rabbits (reduced fetal weight and resorptions) at the limit dose of 
1,000 mg/kg/day. However, developmental effects were noted in offspring 
at 300 mg/kg/day in the rat DNT study characterized as decreased brain 
weight and morphometric changes. Developmental effects in the rabbit 
developmental study and DNT study occurred in the absence of maternal 
toxicity, indicating potential increased quantitative susceptibility of 
offspring. In a rat reproductive toxicity study, reduced pup weight and 
body weight gains during lactation occurred at similar doses causing 
pronounced maternal toxicity (reduced body weight, body weight gain and 
food consumption and increased kidney weight, cardiomyopathy and 
urinary bladder mucosal hyperplasia with inflammation).
    3. Conclusion. EPA has determined that reliable data show the 
safety of infants and children would be adequately protected if the 
FQPA SF were reduced to 1X That decision is based on the following 
findings:
    i. The toxicity database for pyroxasulfone is complete.
    ii. Available data indicates that pyroxasulfone produces neurotoxic 
effects in rats. The toxicity database includes specific acute and 
subchronic neurotoxicity tests, as well as a DNT study. Although the 
DNT indicated offspring are more sensitive to neurotoxic effects of 
pyroxasulfone, the dose-response is well characterized for 
neurotoxicity and a NOAEL is identified; therefore, there is no 
residual uncertainty with regard to neurotoxic effects for which a 10X 
must be retained.
    iii. Evidence of increased susceptibility of fetuses and offspring 
was seen in a DNT study in rats and a developmental study in rabbits 
following in utero or post-natal exposure to pyroxasulfone. However, no 
susceptibility was seen in the rat developmental or reproduction 
studies. In rabbits, developmental toxicity was only seen at the limit 
dose of 1000 mg/kg/day as reduced fetal weight and increased fetal 
resorptions with a NOAEL of 500 mg/kg/day for these effects, compared 
to no maternal toxicity at these doses. In a DNT study in rats, 
offspring toxicity was seen at 300 mg/kg/day compared to no maternal 
toxicity at 900 mg/kg/day. This increased susceptibility is occurring 
at high doses. NOAELs and LOAELs have been identified for all effects 
of concern and thus, a clear dose response has been well defined. 
Therefore, residual uncertainties or concerns for pre- and/or post-
natal toxicity are minimal, and EPA concludes that reducing the FQPA 
safety factor to 1X will be protective of such effects.
    iv. There are no residual uncertainties identified in the exposure 
databases. The dietary food exposure assessments were performed based 
on 100% CT and tolerance-level residues. EPA made conservative 
(protective) assumptions in the ground and surface water modeling used 
to assess exposure to pyroxasulfone in drinking water. These 
assessments will not underestimate the exposure and risks posed by 
pyroxasulfone.

E. Aggregate Risks and Determination of Safety

    EPA determines whether acute and chronic dietary pesticide 
exposures are safe by comparing aggregate exposure estimates to the 
acute population adjusted dose (aPAD) and chronic PAD (cPAD). For 
linear cancer risks, EPA calculates the lifetime probability of 
acquiring cancer given the estimated aggregate exposure. Short-, 
intermediate-, and chronic-term risks are evaluated by comparing the 
estimated aggregate food, water, and residential exposure to the 
appropriate PODs to ensure that an adequate MOE exists.
    1. Acute risk. Using the exposure assumptions discussed in this 
unit for acute exposure, the acute dietary exposure from food and water 
to

[[Page 22858]]

pyroxasulfone will occupy 3.7% of the aPAD for all infants less than 1-
year old, the population group receiving the greatest exposure.
    2. Chronic risk. Using the exposure assumptions described in this 
unit for chronic exposure, EPA has concluded that chronic exposure to 
pyroxasulfone from food and water will utilize 50% of the cPAD for all 
infants less than 1-year old, the population group receiving the 
greatest exposure.
    3. Short-term and intermediate-term risk. Short-term and 
intermediate-term aggregate exposure takes into account short-term and 
intermediate-term residential exposure plus chronic exposure to food 
and water (considered to be a background exposure level).
    Although short-term and intermediate-term adverse effects were 
identified, pyroxasulfone is not registered for any use patterns that 
would result in residential exposure. Therefore, EPA relies on the 
chronic dietary risk assessment for evaluating short-term and 
intermediate-term risk for pyroxasulfone.
    4. Aggregate cancer risk for U.S. population. As explained in Unit 
III.A., the Agency has determined that the quantification of risk using 
a non-linear (i.e., RfD) approach will adequately account for all 
chronic toxicity, including carcinogenicity, that could result from 
exposure to pyroxasulfone. Therefore, based on the results of the 
chronic risk assessment discussed in Unit III.E.2., pyroxasulfone is 
not expected to pose a cancer risk to humans.
    5. Determination of safety. Based on these risk assessments, EPA 
concludes that there is a reasonable certainty that no harm will result 
to the general population, or to infants and children from aggregate 
exposure to pyroxasulfone residues.

IV. Other Considerations

A. Analytical Enforcement Methodology

    Adequate enforcement methodology (high performance liquid 
chromatography/triple quadrupole mass spectrometry (LC/MS/MS) methods) 
are available to enforce the tolerance expression.
    These methods may be requested from: Chief, Analytical Chemistry 
Branch, Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD 
20755-5350; telephone number: (410) 305-2905; email address: 
[email protected].

B. International Residue Limits

    In making its tolerance decisions, EPA seeks to harmonize U.S. 
tolerances with international standards whenever possible, consistent 
with U.S. food safety standards and agricultural practices. EPA 
considers the international maximum residue limits (MRLs) established 
by the Codex Alimentarius Commission (Codex), as required by FFDCA 
section 408(b)(4). The Codex Alimentarius is a joint United Nations 
Food and Agriculture Organization/World Health Organization food 
standards program, and it is recognized as an international food safety 
standards-setting organization in trade agreements to which the United 
States is a party. EPA may establish a tolerance that is different from 
a Codex MRL; however, FFDCA section 408(b)(4) requires that EPA explain 
the reasons for departing from the Codex level. The Codex has not 
established a MRL for pyroxasulfone in any of the proposed commodities.

C. Revisions to Petitioned-For Tolerances

    The vegetable, tuberous and corm, subgroup 1C tolerance is being 
established at 0.08 ppm instead of 0.05 ppm. The petitioner's requested 
tolerance level included only residues from the parent and M1 
metabolite. The Agency is establishing this tolerance at 0.08 ppm to 
account for the measurement of parent and four metabolites. Applying 
processing factors in accordance with the Agency's policy for 
determining such factors when measuring multiple pesticide residues, 
the Agency has determined that 0.20 ppm is an appropriate tolerance 
level for granules/flakes. In addition, The Agency has determined that 
a tolerance for potato chips is not required because residues will be 
within the tolerance level established for subgroup 1C.

V. Conclusion

    Therefore, tolerances are established for residues of pyroxasulfone 
including its metabolites and degradates, in or on potatoes, granules/
flakes at 0.20 ppm; vegetable, bulb, group 3-07 at 0.15 ppm; and 
vegetable, tuberous and corm, subgroup 1C at 0.08 ppm.

VI. Statutory and Executive Order Reviews

    This action establishes tolerances under FFDCA section 408(d) in 
response to a petition submitted to the Agency. The Office of 
Management and Budget (OMB) has exempted these types of actions from 
review under Executive Order 12866, entitled ``Regulatory Planning and 
Review'' (58 FR 51735, October 4, 1993). Because this action has been 
exempted from review under Executive Order 12866, this action is not 
subject to Executive Order 13211, entitled ``Actions Concerning 
Regulations That Significantly Affect Energy Supply, Distribution, or 
Use'' (66 FR 28355, May 22, 2001); Executive Order 13045, entitled 
``Protection of Children from Environmental Health Risks and Safety 
Risks'' (62 FR 19885, April 23, 1997); or Executive Order 13771, 
entitled ``Reducing Regulations and Controlling Regulatory Costs'' (82 
FR 9339, February 3, 2017). This action does not contain any 
information collections subject to OMB approval under the Paperwork 
Reduction Act (PRA) (44 U.S.C. 3501 et seq.), nor does it require any 
special considerations under Executive Order 12898, entitled ``Federal 
Actions to Address Environmental Justice in Minority Populations and 
Low-Income Populations'' (59 FR 7629, February 16, 1994).
    Since tolerances and exemptions that are established on the basis 
of a petition under FFDCA section 408(d), such as the tolerance 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).

[[Page 22859]]

VII. Congressional Review Act

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

List of Subjects in 40 CFR Part 180

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

    Dated: May 8, 2018.
Daniel Rosenblatt,
Acting Director, Registration Division, Office of Pesticide Programs.

    Therefore, 40 CFR chapter I is amended as follows:

PART 180--[AMENDED]

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

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

0
2. In Sec.  180.659, add alphabetically ``Potato, granules/flakes'', 
``Vegetable, bulb, group 3-07'', and ``Vegetable, tuberous and corm, 
subgroup 1C'' to the table in paragraph (a)(5) to read as follows:


Sec.  180.659  Pyroxasulfone; tolerances for residues.

    (a) * * *
    (5) * * *

------------------------------------------------------------------------
                                                               Parts per
                          Commodity                             million
------------------------------------------------------------------------
 
                                * * * * *
Potato, granules/flakes.....................................        0.20
 
                                * * * * *
Vegetable, bulb, group 3-07.................................        0.15
 
                                * * * * *
Vegetable, tuberous and corm, subgroup 1C...................        0.08
------------------------------------------------------------------------

* * * * *
[FR Doc. 2018-10582 Filed 5-16-18; 8:45 am]
 BILLING CODE 6560-50-P



                                           22854                Federal Register / Vol. 83, No. 96 / Thursday, May 17, 2018 / Rules and Regulations

                                           Representatives, and the Comptroller                     not be challenged later in proceedings to              PART 52—APPROVAL AND
                                           General of the United States prior to                    enforce its requirements (See section                  PROMULGATION OF
                                           publication of the rule in the Federal                   307(b)(2)).                                            IMPLEMENTATION PLANS
                                           Register. A major rule cannot take effect
                                                                                                    List of Subjects in 40 CFR Part 52
                                           until 60 days after it is published in the                                                                      ■ 1. The authority citation for part 52
                                           Federal Register. This action is not a                     Environmental protection, Air                        continues to read as follows:
                                           ‘‘major rule’’ as defined by 5 U.S.C.                    pollution control, Carbon monoxide,
                                                                                                                                                               Authority: 42 U.S.C. 7401 et seq.
                                           804(2).                                                  Incorporation by reference,
                                              Under section 307(b)(1) of the Clean                  Intergovernmental relations, Lead,                     Subpart MM—Oregon
                                           Air Act, petitions for judicial review of                Nitrogen dioxide, Ozone, Particulate
                                           this action must be filed in the United                  matter, Reporting and recordkeeping                    ■  2. In § 52.1970, amend the table
                                           States Court of Appeals for the                          requirements, Sulfur oxides, Volatile                  ‘‘STATE OF OREGON AIR QUALITY
                                           appropriate circuit by July 16, 2018.                    organic compounds.                                     CONTROL PROGRAM’’ in paragraph (e)
                                           Filing a petition for reconsideration by                   Authority: 42 U.S.C. 7401 et seq.                    by adding a new entry immediately
                                           the Administrator of this final rule does                  Dated: May 7, 2018.                                  above the entry for ‘‘Section 6—
                                           not affect the finality of this action for                                                                      Ambient Air Quality Monitoring
                                                                                                    Chris Hladick,
                                           the purposes of judicial review nor does                                                                        Program’’ to read as follows:
                                           it extend the time within which a                        Regional Administrator, Region 10.
                                           petition for judicial review may be filed,                 For the reasons set forth in the                     § 52.1970    Identification of plan.
                                           and shall not postpone the effectiveness                 preamble, 40 CFR part 52 is amended as                 *       *    *        *    *
                                           of such rule or action. This action may                  follows:                                                   (e) * * *
                                                                                          STATE OF OREGON AIR QUALITY CONTROL PROGRAM
                                                                                       State effective
                                              SIP citation          Title/subject                                         EPA approval date                                      Explanation
                                                                                            date


                                                     *                       *                        *                     *                  *                          *                  *
                                                                                               7/13/2012    5/17/2018, [Insert Federal Register cita-          Regional Haze Progress Report
                                                                                                              tion].

                                                     *                       *                        *                       *                       *                      *                     *



                                           [FR Doc. 2018–10569 Filed 5–16–18; 8:45 am]              ADDRESSES:    The docket for this action,              I. General Information
                                           BILLING CODE 6560–50–P                                   identified by docket identification (ID)
                                                                                                                                                           A. Does this action apply to me?
                                                                                                    number EPA–HQ–OPP–2015–0787, is
                                                                                                    available at http://www.regulations.gov                   You may be potentially affected by
                                           ENVIRONMENTAL PROTECTION                                 or at the Office of Pesticide Programs                 this action if you are an agricultural
                                           AGENCY                                                   Regulatory Public Docket (OPP Docket)                  producer, food manufacturer, or
                                                                                                    in the Environmental Protection Agency                 pesticide manufacturer. The following
                                           40 CFR Part 180
                                                                                                    Docket Center (EPA/DC), West William                   list of North American Industrial
                                                                                                    Jefferson Clinton Bldg., Rm. 3334, 1301                Classification System (NAICS) codes is
                                           [EPA–HQ–OPP–2015–0787; FRL–9977–25]                      Constitution Ave. NW, Washington, DC                   not intended to be exhaustive, but rather
                                           Pyroxasulfone; Pesticide Tolerances                      20460–0001. The Public Reading Room                    provides a guide to help readers
                                                                                                    is open from 8:30 a.m. to 4:30 p.m.,                   determine whether this document
                                           AGENCY: Environmental Protection                         Monday through Friday, excluding legal                 applies to them. Potentially affected
                                           Agency (EPA).                                            holidays. The telephone number for the                 entities may include:
                                                                                                    Public Reading Room is (202) 566–1744,
                                           ACTION:   Final rule.                                                                                              • Crop production (NAICS code 111).
                                                                                                    and the telephone number for the OPP
                                           SUMMARY:   This regulation establishes                   Docket is (703) 305–5805. Please review                   • Animal production (NAICS code
                                           tolerances for residues of pyroxasulfone                 the visitor instructions and additional                112).
                                           and its metabolites in or on vegetable,                  information about the docket available                    • Food manufacturing (NAICS code
                                           tuberous and corm, subgroup 1C;                          at http://www.epa.gov/dockets.                         311).
                                           vegetable, bulb, group 3–07; and                                                                                   • Pesticide manufacturing (NAICS
                                                                                                    FOR FURTHER INFORMATION CONTACT:
                                           potatoes, granules/flakes. K–I Chemical                                                                         code 32532).
                                           USA, Inc. requested these tolerances                     Michael Goodis, Registration Division
                                           under the Federal Food, Drug, and                        (7505P), Office of Pesticide Programs,                 B. How can I get electronic access to
                                           Cosmetic Act (FFDCA).                                    Environmental Protection Agency, 1200                  other related information?
                                                                                                    Pennsylvania Ave. NW, Washington, DC
                                           DATES: This regulation is effective May                                                                            You may access a frequently updated
                                                                                                    20460–0001; main telephone number:
                                           17, 2018. Objections and requests for
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                                                                                                    (703) 305–7090; email address:                         electronic version of EPA’s tolerance
                                           hearings must be received on or before                                                                          regulations at 40 CFR part 180 through
                                                                                                    RDFRNotices@epa.gov.
                                           July 16, 2018, and must be filed in
                                                                                                                                                           the Government Printing Office’s e-CFR
                                           accordance with the instructions                         SUPPLEMENTARY INFORMATION:
                                                                                                                                                           site at http://www.ecfr.gov/cgi-bin/text-
                                           provided in 40 CFR part 178 (see also
                                           Unit I.C. of the SUPPLEMENTARY                                                                                  idx?&c=ecfr&tpl=/ecfrbrowse/Title40/
                                           INFORMATION).
                                                                                                                                                           40tab_02.tpl.



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                                                               Federal Register / Vol. 83, No. 96 / Thursday, May 17, 2018 / Rules and Regulations                                         22855

                                           C. How can I file an objection or hearing               amended by establishing tolerances for                and other relevant information in
                                           request?                                                residues of the herbicide pyroxasulfone,              support of this action. EPA has
                                             Under FFDCA section 408(g), 21                        (3-[5-(difluoromethoxy)-1-methyl-3-                   sufficient data to assess the hazards of
                                           U.S.C. 346a, any person may file an                     (trifluoromethyl)pyrazol-4-yl                         and to make a determination on
                                           objection to any aspect of this regulation              methylsulfonyl]-4,5-dihydro-5,5-                      aggregate exposure for pyroxasulfone
                                           and may also request a hearing on those                 dimethyl-1,2-oxazole) in or on Crop                   including exposure resulting from the
                                           objections. You must file your objection                Subgroup 1C, tuberous and corm                        tolerances established by this action.
                                                                                                   vegetables (except granular/flakes and                EPA’s assessment of exposures and risks
                                           or request a hearing on this regulation
                                                                                                   chips) at 0.05 parts per million (ppm);               associated with pyroxasulfone follows.
                                           in accordance with the instructions
                                                                                                   Crop Subgroup 3–07, bulb vegetables at
                                           provided in 40 CFR part 178. To ensure                                                                        A. Toxicological Profile
                                                                                                   0.15 ppm; potatoes, granular/flakes at
                                           proper receipt by EPA, you must                                                                                  EPA has evaluated the available
                                                                                                   0.3 ppm; and potato chips at 0.06 ppm.
                                           identify docket ID number EPA–HQ–                                                                             toxicity data and considered its validity,
                                                                                                   That document referenced a summary of
                                           OPP–2015–0787 in the subject line on                                                                          completeness, and reliability as well as
                                                                                                   the petition prepared by K–I Chemical
                                           the first page of your submission. All                                                                        the relationship of the results of the
                                                                                                   USA, Inc., the registrant, which is
                                           objections and requests for a hearing                                                                         studies to human risk. EPA has also
                                                                                                   available in the docket, http://
                                           must be in writing, and must be                                                                               considered available information
                                                                                                   www.regulations.gov. No comments
                                           received by the Hearing Clerk on or                     were received in response to the notice               concerning the variability of the
                                           before July 16, 2018. Addresses for mail                of filing.                                            sensitivities of major identifiable
                                           and hand delivery of objections and                        Because the January 26, 2018,                      subgroups of consumers, including
                                           hearing requests are provided in 40 CFR                 document identified the K–I Chemical                  infants and children.
                                           178.25(b).                                              petition by the wrong petition number,                   The toxicology database for
                                             In addition to filing an objection or                 EPA published another document in the                 pyroxasulfone is adequate for evaluating
                                           hearing request with the Hearing Clerk                  Federal Register assigning the correct                and characterizing toxicity and selecting
                                           as described in 40 CFR part 178, please                 petition number to the K–I Chemical                   endpoints for purposes of this risk
                                           submit a copy of the filing (excluding                  petition—PP6F8521. That document                      assessment. Pyroxasulfone acute
                                           any Confidential Business Information                   was published in the Federal Register                 toxicity to mammals is low by all routes
                                           (CBI)) for inclusion in the public docket.              on March 15, 2018 (83 FR 11448) (FRL–                 of exposure. Subchronic and chronic
                                           Information not marked confidential                     9974–72). No relevant comments were                   oral studies in mice, rats and dogs
                                           pursuant to 40 CFR part 2 may be                        received on the notice of filing.                     produced a variety of effects including
                                           disclosed publicly by EPA without prior                    Based upon review of the data                      cardiac toxicity (increased
                                           notice. Submit the non-CBI copy of your                 supporting the petition, EPA has                      cardiomyopathy), liver toxicity
                                           objection or hearing request, identified                modified the levels at which some of the              (centrilobular hepatocellular
                                           by docket ID number EPA–HQ–OPP–                         tolerances are being established and also             hypertrophy, histopathological and/or
                                           2015–0787, by one of the following                      modified some of the crop definitions.                clinical pathological indicators), kidney
                                           methods:                                                The reasons for these changes are                     toxicity (nephropathy), neurotoxicity
                                             • Federal eRulemaking Portal: http://                 explained in Unit IV.C.                               (impaired hind limb function, ataxia,
                                           www.regulations.gov. Follow the online                                                                        tremors, sciatic nerve lesions, axonal/
                                           instructions for submitting comments.                   III. Aggregate Risk Assessment and                    myelin degeneration in the sciatic nerve
                                           Do not submit electronically any                        Determination of Safety                               and spinal cord sections), skeletal
                                           information you consider to be CBI or                      Section 408(b)(2)(A)(i) of FFDCA                   muscle myopathy, urinary bladder
                                           other information whose disclosure is                   allows EPA to establish a tolerance (the              mucosal hyperplasia, and urinary
                                           restricted by statute.                                  legal limit for a pesticide chemical                  bladder transitional cell papillomas.
                                             • Mail: OPP Docket, Environmental                     residue in or on a food) only if EPA                  Minimal to mild cardiac myofiber
                                           Protection Agency Docket Center (EPA/                   determines that the tolerance is ‘‘safe.’’            degeneration and local inflammation
                                           DC), (28221T), 1200 Pennsylvania Ave.                   Section 408(b)(2)(A)(ii) of FFDCA                     were also seen in a rat dermal toxicity
                                           NW, Washington, DC 20460–0001.                          defines ‘‘safe’’ to mean that ‘‘there is a            study. Neurotoxicity was also seen in a
                                             • Hand Delivery: To make special                      reasonable certainty that no harm will                developmental neurotoxicity study in
                                           arrangements for hand delivery or                       result from aggregate exposure to the                 rats (decreased brain weight, decreased
                                           delivery of boxed information, please                   pesticide chemical residue, including                 thickness of the hippocampus, corpus
                                           follow the instructions at http://                      all anticipated dietary exposures and all             callosum and cerebellum in offspring).
                                           www.epa.gov/dockets/contacts.html.                      other exposures for which there is                    Dogs appear to be the most sensitive
                                             Additional instructions on                            reliable information.’’ This includes                 species to the neurotoxic effects of
                                           commenting or visiting the docket,                      exposure through drinking water and in                pyroxasulfone. Immunotoxicity studies
                                           along with more information about                       residential settings, but does not include            in rats and mice show no evidence of
                                           dockets generally, is available at http://              occupational exposure. Section                        immunotoxic effects from
                                           www.epa.gov/dockets.                                    408(b)(2)(C) of FFDCA requires EPA to                 pyroxasulfone.
                                                                                                   give special consideration to exposure                   There is evidence of fetal and
                                           II. Summary of Petitioned-For                                                                                 offspring susceptibility in the
                                                                                                   of infants and children to the pesticide
                                           Tolerance                                                                                                     developmental neurotoxicity study in
                                                                                                   chemical residue in establishing a
                                              In the Federal Register of January 26,               tolerance and to ‘‘ensure that there is a             rats as effects occurred in the absence of
                                           2018 (83 FR 3659) (FRL–9971–46), EPA                    reasonable certainty that no harm will                maternal toxicity. There is no concern
                                           issued a document pursuant to FFDCA                     result to infants and children from                   for reproductive toxicity. Pyroxasulfone
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                                           section 408(d)(3), 21 U.S.C. 346a(d)(3),                aggregate exposure to the pesticide                   is classified as ‘‘Not Likely to be
                                           announcing the filing of a pesticide                    chemical residue. . . .’’                             Carcinogenic to Humans’’ at doses that
                                           petition (PP 5F8521) by K–I Chemical                       Consistent with FFDCA section                      do not cause crystals with subsequent
                                           USA, Inc., 11 Martine Ave., Suite 970,                  408(b)(2)(D), and the factors specified in            calculi formation resulting in cellular
                                           White Plains, NY 10606. The petition                    FFDCA section 408(b)(2)(D), EPA has                   damage of the urinary tract. The Agency
                                           requested that 40 CFR part 180.659 be                   reviewed the available scientific data                has determined that the quantification


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                                           22856                     Federal Register / Vol. 83, No. 96 / Thursday, May 17, 2018 / Rules and Regulations

                                           of risk using a non-linear approach (i.e.,                             B. Toxicological Points of Departure/                      a population-adjusted dose (PAD) or a
                                           reference dose (RfD)) will adequately                                  Levels of Concern                                          RfD—and a safe margin of exposure
                                           account for all chronic toxicity,                                         Once a pesticide’s toxicological                        (MOE). For non-threshold risks, the
                                           including carcinogenicity, that could                                  profile is determined, EPA identifies                      Agency assumes that any amount of
                                           result from exposure to pyroxasulfone.                                 toxicological points of departure (POD)                    exposure will lead to some degree of
                                              Specific information on the studies                                 and levels of concern to use in                            risk. Thus, the Agency estimates risk in
                                           received and the nature of the adverse                                 evaluating the risk posed by human                         terms of the probability of an occurrence
                                           effects caused by pyroxasulfone as the                                 exposure to the pesticide. For hazards                     of the adverse effect expected in a
                                           no-observed-adverse effect level                                       that have a threshold below which there                    lifetime. For more information on the
                                           (NOAEL) and lowest-observed adverse                                    is no appreciable risk, the toxicological                  general principles EPA uses in risk
                                           effect level (LOAEL) from the toxicity                                 POD is used as the basis for derivation                    characterization and a complete
                                           studies can be found at http://                                        of reference values for risk assessment.                   description of the risk assessment
                                           www.regulations.gov in document                                        PODs are developed based on a careful                      process, see use https://www.epa.gov/
                                           ‘‘Pyroxasulfone Human Health Risk                                      analysis of the doses in each                              pesticide-science-and-assessing-
                                           Assessment for the Section 3 New Uses                                  toxicological study to determine the                       pesticide-risks/assessing-human-health-
                                           of Pyroxasulfone on Crop Subgroup 1C,                                  dose at which the NOAEL and the                            risk-pesticides.
                                           tuberous and corm vegetables and Crop                                  LOAEL are identified. Uncertainty/                            A summary of the toxicological
                                           Group 3–07, bulb vegetables’’ at pages                                 safety factors are used in conjunction                     endpoints for pyroxasulfone used for
                                           39–53 in docket ID number EPA–HQ–                                      with the POD to calculate a safe                           human risk assessment is shown in the
                                           OPP–2015–0787.                                                         exposure level—generally referred to as                    Table 1 of this unit.
                                               TABLE 1—TOXICOLOGICAL DOSES AND ENDPOINTS FOR PYROXASULFONE FOR USE IN DIETARY HUMAN HEALTH RISK
                                                                                         ASSESSMENTS
                                                                                                       Point of               Uncertainty/
                                                      Exposure/scenario                                                                                        RfD & PAD                   Study and toxicological effects
                                                                                                      departure            FQPA safety factors

                                           Acute Dietary (General Population,                  NOAEL= 100 mg/kg .....    UFA= 10x .....................   Acute RfD = 1.0 mg/kg    Developmental neurotoxicity study (DNT) in
                                             including Infants and Children).                                            UFH=10x                          aPAD = 1.0 mg/kg           rats.
                                                                                                                         FQPA SF=1x                                                The LOAEL of 300 mg/kg/day is based on de-
                                                                                                                                                                                     creased brain weight in both sexes, reduced
                                                                                                                                                                                     thickness of the hippocampus, corpus
                                                                                                                                                                                     callosum and cerebellum in postnatal day
                                                                                                                                                                                     (PND) 21 female offspring.
                                           Chronic Dietary (All Populations) .....             NOAEL= 2 mg/kg/day ..     UFA= 10x .....................   Chronic RfD = 0.02 mg/   One- year chronic dog study
                                                                                                                         UFH=10x                            kg/day.                The LOAEL of 10 mg/kg/day is based on im-
                                                                                                                         FQPA SF=1x                       cPAD = 0.02 mg/kg/day      paired hind limb function, ataxia, hind limb
                                                                                                                                                                                     twitching and tremors; clinical pathology: in-
                                                                                                                                                                                     creased      creatine     kinase,    aspartate
                                                                                                                                                                                     aminotransferase; axonal/myelin degenera-
                                                                                                                                                                                     tion of the sciatic nerve and spinal cord sec-
                                                                                                                                                                                     tions.

                                           Cancer (all routes) ............................    ‘‘Not Likely to be Carcinogenic to Humans’’ at doses that do not cause crystals with subsequent calculi formation resulting in
                                                                                               cellular damage of the urinary tract. Risk is quantified using a non-linear (i.e., RfD) approach.
                                             Point of Departure (POD) = A data point or an estimated point that is derived from observed dose-response data and used to mark the beginning of extrapolation to
                                           determine risk associated with lower environmentally relevant human exposures. NOAEL = no observed adverse effect level. LOAEL = lowest observed adverse ef-
                                           fect level. UF = uncertainty factor. UFA = extrapolation from animal to human (interspecies). UFH = potential variation in sensitivity among members of the human
                                           population (intraspecies). FQPA SF = FQPA Safety Factor. PAD = population adjusted dose (a = acute, c = chronic). RfD = reference dose. MOE = margin of expo-
                                           sure. LOC = level of concern. N/A = not applicable.


                                           C. Exposure Assessment                                                 States Department of Agriculture                           that do not cause crystals with
                                                                                                                  (USDA) 2003–2008 National Health and                       subsequent calculi formation resulting
                                              1. Dietary exposure from food and
                                                                                                                  Nutrition Examination Survey/What We                       in cellular damage of the urinary tract.
                                           feed uses. In evaluating dietary                                       Eat in America (NHANES/WWEIA). As                          The Agency has determined that the
                                           exposure to pyroxasulfone, EPA                                         to residue levels in food, EPA assumed                     quantification of risk using a non-linear
                                           considered exposure under the                                          100 percent crop treated (PCT) and                         approach (i.e., RfD) will adequately
                                           petitioned-for tolerances as well as all                               tolerance-level residues adjusted for                      account for all chronic toxicity,
                                           existing pyroxasulfone tolerances in 40                                metabolites which are not in the                           including carcinogenicity, that could
                                           CFR 180.659. EPA assessed dietary                                      tolerance expression.                                      result from exposure to pyroxasulfone.
                                           exposures from pyroxasulfone in food as                                  ii. Chronic exposure. In conducting                        iv. Anticipated residue and percent
                                           follows:                                                               the chronic dietary exposure assessment                    crop treated (PCT) information. EPA did
                                              i. Acute exposure. Quantitative acute                               EPA used the food consumption data                         not use anticipated residue and PCT
                                           dietary exposure and risk assessments                                  from the USDA 2003–2008 (NHANES/                           information in the dietary assessment
                                           are performed for a food-use pesticide,                                WWEIA). As to residue levels in food,                      for pyroxasulfone. Tolerance-level
                                           if a toxicological study has indicated the                             EPA assumed 100 PCT and tolerance-                         residues and 100% crop treated (CT)
                                           possibility of an effect of concern                                    level residues adjusted for metabolites                    were assumed for all food commodities.
amozie on DSK3GDR082PROD with RULES




                                           occurring as a result of a 1-day or single                             which are not in the tolerance                               2. Dietary exposure from drinking
                                           exposure.                                                              expression.                                                water. The Agency used screening-level
                                              Such effects were identified for                                      iii. Cancer. Based on the data                           water exposure models in the dietary
                                           pyroxasulfone. In estimating acute                                     summarized in Unit III.A., EPA has                         exposure analysis and risk assessment
                                           dietary exposure, EPA used food                                        classified pyroxasulfone as ‘‘Not Likely                   for pyroxasulfone in drinking water.
                                           consumption data from the United                                       to be Carcinogenic to Humans’’ at doses                    These simulation models take into


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                                                               Federal Register / Vol. 83, No. 96 / Thursday, May 17, 2018 / Rules and Regulations                                          22857

                                           account data on the physical, chemical,                 the cumulative effects of such                        neurotoxic effects of pyroxasulfone, the
                                           and fate/transport characteristics of                   chemicals, see EPA’s website at https://              dose-response is well characterized for
                                           pyroxasulfone. Further information                      www.epa.gov/pesticide-science-and-                    neurotoxicity and a NOAEL is
                                           regarding EPA drinking water models                     assessing-pesticide-risks/assessing-                  identified; therefore, there is no residual
                                           used in pesticide exposure assessment                   human-health-riskpesticides.                          uncertainty with regard to neurotoxic
                                           can be found at at https://www.epa.gov/                                                                       effects for which a 10X must be
                                                                                                   D. Safety Factor for Infants and
                                           pesticide-science-and-assessing-                                                                              retained.
                                                                                                   Children                                                 iii. Evidence of increased
                                           pesticide-risks/assessing-human-health-
                                           riskpesticides.                                            1. In general. Section 408(b)(2)(C) of             susceptibility of fetuses and offspring
                                              Based on the Pesticide Root Zone                     FFDCA provides that EPA shall apply                   was seen in a DNT study in rats and a
                                           Model Ground Water (PRZM version                        an additional tenfold (10X) margin of                 developmental study in rabbits
                                           3.122)/Exposure Analysis Modeling                       safety for infants and children in the                following in utero or post-natal
                                           System-Superseded (EXAMS version                        case of threshold effects to account for              exposure to pyroxasulfone. However, no
                                           2.98.04), the estimated concentrations of               prenatal and postnatal toxicity and the               susceptibility was seen in the rat
                                           pyroxasulfone in surface water were                     completeness of the database on toxicity              developmental or reproduction studies.
                                           minimal, and the highest estimated                      and exposure unless EPA determines                    In rabbits, developmental toxicity was
                                           drinking water concentrations (EDWCs)                   based on reliable data that a different               only seen at the limit dose of 1000 mg/
                                           of pyroxasulfone residues were from a                   margin of safety will be safe for infants             kg/day as reduced fetal weight and
                                           Tier II PRZM–GW modeling at an                          and children. This additional margin of               increased fetal resorptions with a
                                           application rate of 0.267 lbs active                    safety is commonly referred to as the                 NOAEL of 500 mg/kg/day for these
                                           ingredient/Acre for registered crops.                   FQPA SF. In applying this provision,                  effects, compared to no maternal
                                           The same EDWCs have been used for                       EPA either retains the default value of               toxicity at these doses. In a DNT study
                                           the current human health dietary risk                   10X, or uses a different additional safety            in rats, offspring toxicity was seen at
                                           assessment. The EDWCs for peak                          factor when reliable data available to                300 mg/kg/day compared to no maternal
                                           concentration (used in the acute                        EPA support the choice of a different                 toxicity at 900 mg/kg/day. This
                                           assessment) and 30-year average                         factor.                                               increased susceptibility is occurring at
                                           concentration (used in the chronic                         2. Prenatal and postnatal sensitivity.             high doses. NOAELs and LOAELs have
                                           assessment) were 0.210 and 0.174 mg/L                   Pyroxasulfone did not exhibit                         been identified for all effects of concern
                                           (ppm), respectively. Water residues                     developmental toxicity in the rat                     and thus, a clear dose response has been
                                           were incorporated in the Dietary                        guideline study at the limit dose of                  well defined. Therefore, residual
                                           Exposure Evaluation Model—Food                          1,000 mg/kg/day and it exhibited slight               uncertainties or concerns for pre- and/
                                           Commodity Intake Database (DEEM–                        developmental toxicity in rabbits                     or post-natal toxicity are minimal, and
                                           FCID) into the food categories ‘‘water,                 (reduced fetal weight and resorptions) at             EPA concludes that reducing the FQPA
                                           direct, all sources’’ and ‘‘water, indirect,            the limit dose of 1,000 mg/kg/day.                    safety factor to 1X will be protective of
                                           all sources.’’                                          However, developmental effects were                   such effects.
                                              3. From non-dietary exposure. The                    noted in offspring at 300 mg/kg/day in                   iv. There are no residual uncertainties
                                           term ‘‘residential exposure’’ is used in                the rat DNT study characterized as                    identified in the exposure databases.
                                           this document to refer to non-                          decreased brain weight and                            The dietary food exposure assessments
                                           occupational, non-dietary exposure                      morphometric changes. Developmental                   were performed based on 100% CT and
                                           (e.g., for lawn and garden pest control,                effects in the rabbit developmental                   tolerance-level residues. EPA made
                                           indoor pest control, termiticides, and                  study and DNT study occurred in the                   conservative (protective) assumptions in
                                           flea and tick control on pets).                         absence of maternal toxicity, indicating              the ground and surface water modeling
                                              Pyroxasulfone is not registered for any              potential increased quantitative                      used to assess exposure to
                                           specific use patterns that would result                 susceptibility of offspring. In a rat                 pyroxasulfone in drinking water. These
                                           in residential exposure.                                reproductive toxicity study, reduced                  assessments will not underestimate the
                                              4. Cumulative effects from substances                pup weight and body weight gains                      exposure and risks posed by
                                           with a common mechanism of toxicity.                    during lactation occurred at similar                  pyroxasulfone.
                                           Section 408(b)(2)(D)(v) of FFDCA                        doses causing pronounced maternal
                                           requires that, when considering whether                                                                       E. Aggregate Risks and Determination of
                                                                                                   toxicity (reduced body weight, body
                                           to establish, modify, or revoke a                                                                             Safety
                                                                                                   weight gain and food consumption and
                                           tolerance, the Agency consider                          increased kidney weight,                                EPA determines whether acute and
                                           ‘‘available information’’ concerning the                cardiomyopathy and urinary bladder                    chronic dietary pesticide exposures are
                                           cumulative effects of a particular                      mucosal hyperplasia with                              safe by comparing aggregate exposure
                                           pesticide’s residues and ‘‘other                        inflammation).                                        estimates to the acute population
                                           substances that have a common                              3. Conclusion. EPA has determined                  adjusted dose (aPAD) and chronic PAD
                                           mechanism of toxicity.’’                                that reliable data show the safety of                 (cPAD). For linear cancer risks, EPA
                                              EPA has not found pyroxasulfone to                   infants and children would be                         calculates the lifetime probability of
                                           share a common mechanism of toxicity                    adequately protected if the FQPA SF                   acquiring cancer given the estimated
                                           with any other substances, and                          were reduced to 1X That decision is                   aggregate exposure. Short-,
                                           pyroxasulfone does not appear to                        based on the following findings:                      intermediate-, and chronic-term risks
                                           produce a toxic metabolite produced by                     i. The toxicity database for                       are evaluated by comparing the
                                           other substances. For the purposes of                   pyroxasulfone is complete.                            estimated aggregate food, water, and
                                           this tolerance action, therefore, EPA has                  ii. Available data indicates that                  residential exposure to the appropriate
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                                           assumed that pyroxasulfone does not                     pyroxasulfone produces neurotoxic                     PODs to ensure that an adequate MOE
                                           have a common mechanism of toxicity                     effects in rats. The toxicity database                exists.
                                           with other substances. For information                  includes specific acute and subchronic                  1. Acute risk. Using the exposure
                                           regarding EPA’s efforts to determine                    neurotoxicity tests, as well as a DNT                 assumptions discussed in this unit for
                                           which chemicals have a common                           study. Although the DNT indicated                     acute exposure, the acute dietary
                                           mechanism of toxicity and to evaluate                   offspring are more sensitive to                       exposure from food and water to


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                                           22858               Federal Register / Vol. 83, No. 96 / Thursday, May 17, 2018 / Rules and Regulations

                                           pyroxasulfone will occupy 3.7% of the                   international standards whenever                      not subject to Executive Order 13211,
                                           aPAD for all infants less than 1-year old,              possible, consistent with U.S. food                   entitled ‘‘Actions Concerning
                                           the population group receiving the                      safety standards and agricultural                     Regulations That Significantly Affect
                                           greatest exposure.                                      practices. EPA considers the                          Energy Supply, Distribution, or Use’’ (66
                                              2. Chronic risk. Using the exposure                  international maximum residue limits                  FR 28355, May 22, 2001); Executive
                                           assumptions described in this unit for                  (MRLs) established by the Codex                       Order 13045, entitled ‘‘Protection of
                                           chronic exposure, EPA has concluded                     Alimentarius Commission (Codex), as                   Children from Environmental Health
                                           that chronic exposure to pyroxasulfone                  required by FFDCA section 408(b)(4).                  Risks and Safety Risks’’ (62 FR 19885,
                                           from food and water will utilize 50% of                 The Codex Alimentarius is a joint                     April 23, 1997); or Executive Order
                                           the cPAD for all infants less than 1-year               United Nations Food and Agriculture                   13771, entitled ‘‘Reducing Regulations
                                           old, the population group receiving the                 Organization/World Health                             and Controlling Regulatory Costs’’ (82
                                           greatest exposure.                                      Organization food standards program,                  FR 9339, February 3, 2017). This action
                                              3. Short-term and intermediate-term                  and it is recognized as an international              does not contain any information
                                           risk. Short-term and intermediate-term                  food safety standards-setting                         collections subject to OMB approval
                                           aggregate exposure takes into account                   organization in trade agreements to                   under the Paperwork Reduction Act
                                           short-term and intermediate-term                        which the United States is a party. EPA               (PRA) (44 U.S.C. 3501 et seq.), nor does
                                           residential exposure plus chronic                       may establish a tolerance that is                     it require any special considerations
                                           exposure to food and water (considered                  different from a Codex MRL; however,                  under Executive Order 12898, entitled
                                           to be a background exposure level).                     FFDCA section 408(b)(4) requires that                 ‘‘Federal Actions to Address
                                              Although short-term and                              EPA explain the reasons for departing                 Environmental Justice in Minority
                                           intermediate-term adverse effects were                  from the Codex level. The Codex has not               Populations and Low-Income
                                           identified, pyroxasulfone is not                        established a MRL for pyroxasulfone in                Populations’’ (59 FR 7629, February 16,
                                           registered for any use patterns that                    any of the proposed commodities.                      1994).
                                           would result in residential exposure.                   C. Revisions to Petitioned-For                           Since tolerances and exemptions that
                                           Therefore, EPA relies on the chronic                    Tolerances                                            are established on the basis of a petition
                                           dietary risk assessment for evaluating                                                                        under FFDCA section 408(d), such as
                                           short-term and intermediate-term risk                     The vegetable, tuberous and corm,
                                                                                                                                                         the tolerance in this final rule, do not
                                           for pyroxasulfone.                                      subgroup 1C tolerance is being
                                                                                                                                                         require the issuance of a proposed rule,
                                              4. Aggregate cancer risk for U.S.                    established at 0.08 ppm instead of 0.05
                                                                                                                                                         the requirements of the Regulatory
                                           population. As explained in Unit III.A.,                ppm. The petitioner’s requested
                                                                                                                                                         Flexibility Act (RFA) (5 U.S.C. 601 et
                                           the Agency has determined that the                      tolerance level included only residues
                                                                                                                                                         seq.), do not apply.
                                           quantification of risk using a non-linear               from the parent and M1 metabolite. The
                                                                                                                                                            This action directly regulates growers,
                                           (i.e., RfD) approach will adequately                    Agency is establishing this tolerance at
                                                                                                                                                         food processors, food handlers, and food
                                           account for all chronic toxicity,                       0.08 ppm to account for the
                                                                                                                                                         retailers, not States or tribes, nor does
                                           including carcinogenicity, that could                   measurement of parent and four
                                                                                                                                                         this action alter the relationships or
                                           result from exposure to pyroxasulfone.                  metabolites. Applying processing factors
                                                                                                                                                         distribution of power and
                                           Therefore, based on the results of the                  in accordance with the Agency’s policy
                                                                                                                                                         responsibilities established by Congress
                                           chronic risk assessment discussed in                    for determining such factors when
                                                                                                                                                         in the preemption provisions of FFDCA
                                           Unit III.E.2., pyroxasulfone is not                     measuring multiple pesticide residues,
                                                                                                                                                         section 408(n)(4). As such, the Agency
                                           expected to pose a cancer risk to                       the Agency has determined that 0.20
                                                                                                                                                         has determined that this action will not
                                           humans.                                                 ppm is an appropriate tolerance level
                                                                                                                                                         have a substantial direct effect on States
                                              5. Determination of safety. Based on                 for granules/flakes. In addition, The
                                                                                                                                                         or tribal governments, on the
                                           these risk assessments, EPA concludes                   Agency has determined that a tolerance
                                                                                                                                                         relationship between the national
                                           that there is a reasonable certainty that               for potato chips is not required because
                                                                                                                                                         government and the States or tribal
                                           no harm will result to the general                      residues will be within the tolerance
                                                                                                                                                         governments, or on the distribution of
                                           population, or to infants and children                  level established for subgroup 1C.
                                                                                                                                                         power and responsibilities among the
                                           from aggregate exposure to                              V. Conclusion                                         various levels of government or between
                                           pyroxasulfone residues.                                                                                       the Federal Government and Indian
                                                                                                      Therefore, tolerances are established
                                           IV. Other Considerations                                for residues of pyroxasulfone including               tribes. Thus, the Agency has determined
                                                                                                   its metabolites and degradates, in or on              that Executive Order 13132, entitled
                                           A. Analytical Enforcement Methodology                                                                         ‘‘Federalism’’ (64 FR 43255, August 10,
                                                                                                   potatoes, granules/flakes at 0.20 ppm;
                                              Adequate enforcement methodology                     vegetable, bulb, group 3–07 at 0.15 ppm;              1999) and Executive Order 13175,
                                           (high performance liquid                                and vegetable, tuberous and corm,                     entitled ‘‘Consultation and Coordination
                                           chromatography/triple quadrupole mass                   subgroup 1C at 0.08 ppm.                              with Indian Tribal Governments’’ (65 FR
                                           spectrometry (LC/MS/MS) methods) are                                                                          67249, November 9, 2000) do not apply
                                           available to enforce the tolerance                      VI. Statutory and Executive Order                     to this action. In addition, this action
                                           expression.                                             Reviews                                               does not impose any enforceable duty or
                                              These methods may be requested                         This action establishes tolerances                  contain any unfunded mandate as
                                           from: Chief, Analytical Chemistry                       under FFDCA section 408(d) in                         described under Title II of the Unfunded
                                           Branch, Environmental Science Center,                   response to a petition submitted to the               Mandates Reform Act (UMRA) (2 U.S.C.
                                           701 Mapes Rd., Ft. Meade, MD 20755–                     Agency. The Office of Management and                  1501 et seq.).
                                           5350; telephone number: (410) 305–                      Budget (OMB) has exempted these types                    This action does not involve any
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                                           2905; email address: residuemethods@                    of actions from review under Executive                technical standards that would require
                                           epa.gov.                                                Order 12866, entitled ‘‘Regulatory                    Agency consideration of voluntary
                                                                                                   Planning and Review’’ (58 FR 51735,                   consensus standards pursuant to section
                                           B. International Residue Limits                         October 4, 1993). Because this action                 12(d) of the National Technology
                                             In making its tolerance decisions, EPA                has been exempted from review under                   Transfer and Advancement Act
                                           seeks to harmonize U.S. tolerances with                 Executive Order 12866, this action is                 (NTTAA) (15 U.S.C. 272 note).


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                                                                 Federal Register / Vol. 83, No. 96 / Thursday, May 17, 2018 / Rules and Regulations                                                22859

                                           VII. Congressional Review Act                                 ENVIRONMENTAL PROTECTION                              Forsyth Street SW, Mailcode 9T25,
                                                                                                         AGENCY                                                Atlanta, GA 30303; 404/562–8637.
                                             Pursuant to the Congressional Review                                                                                • Todd Quesada, Region 5 (IL, IN, MI,
                                           Act (5 U.S.C. 801 et seq.), EPA will                          40 CFR Part 300                                       MN, OH, WI), U.S. EPA Superfund
                                           submit a report containing this rule and                                                                            Division Librarian/SFD Records
                                                                                                         [EPA–HQ–OLEM–2017–0604, 0606, 0607,
                                           other required information to the U.S.                        0609, 0611 and 0612; FRL–9978–14–OLEM]                Manager SRC–7J, Metcalfe Federal
                                           Senate, the U.S. House of                                                                                           Building, 77 West Jackson Boulevard,
                                           Representatives, and the Comptroller                          National Priorities List                              Chicago, IL 60604; 312/886–4465.
                                           General of the United States prior to                                                                                 • Brenda Cook, Region 6 (AR, LA,
                                           publication of the rule in the Federal                        AGENCY:  Environmental Protection                     NM, OK, TX), U.S. EPA, 1445 Ross
                                           Register. This action is not a ‘‘major                        Agency (EPA).                                         Avenue, Suite 1200, Mailcode 6SFTS,
                                           rule’’ as defined by 5 U.S.C. 804(2).                         ACTION: Final rule.                                   Dallas, TX 75202–2733; 214/665–7436.
                                                                                                                                                                 • Kumud Pyakuryal, Region 7 (IA,
                                           List of Subjects in 40 CFR Part 180                           SUMMARY:   The Comprehensive                          KS, MO, NE), U.S. EPA, 11201 Renner
                                                                                                         Environmental Response,                               Blvd., Mailcode SUPRSTAR, Lenexa, KS
                                             Environmental protection,                                   Compensation, and Liability Act of 1980               66219; 913/551–7956.
                                           Administrative practice and procedure,                        (‘‘CERCLA’’ or ‘‘the Act’’), as amended,                • Victor Ketellapper, Region 8 (CO,
                                           Agricultural commodities, Pesticides                          requires that the National Oil and                    MT, ND, SD, UT, WY), U.S. EPA, 1595
                                           and pests, Reporting and recordkeeping                        Hazardous Substances Pollution                        Wynkoop Street, Mailcode 8EPR–B,
                                           requirements.                                                 Contingency Plan (‘‘NCP’’) include a list             Denver, CO 80202–1129; 303/312–6578.
                                              Dated: May 8, 2018.                                        of national priorities among the known                  • Sharon Murray, Region 9 (AZ, CA,
                                                                                                         releases or threatened releases of                    HI, NV, AS, GU, MP), U.S. EPA, 75
                                           Daniel Rosenblatt,
                                                                                                         hazardous substances, pollutants or                   Hawthorne Street, Mailcode SFD 6–1,
                                           Acting Director, Registration Division, Office                contaminants throughout the United                    San Francisco, CA 94105; 415/947–
                                           of Pesticide Programs.                                        States. The National Priorities List                  4250.
                                             Therefore, 40 CFR chapter I is                              (‘‘NPL’’) constitutes this list. The NPL is             • Ken Marcy, Region 10 (AK, ID, OR,
                                                                                                         intended primarily to guide the                       WA), U.S. EPA, 1200 6th Avenue,
                                           amended as follows:
                                                                                                         Environmental Protection Agency (‘‘the                Mailcode ECL–112, Seattle, WA 98101;
                                           PART 180—[AMENDED]                                            EPA’’ or ‘‘the agency’’) in determining               206/463–1349.
                                                                                                         which sites warrant further                           FOR FURTHER INFORMATION CONTACT:
                                           ■ 1. The authority citation for part 180                      investigation. These further                          Terry Jeng, phone: (703) 603–8852,
                                           continues to read as follows:                                 investigations will allow the EPA to                  email: jeng.terry@epa.gov Site
                                                                                                         assess the nature and extent of public                Assessment and Remedy Decisions
                                               Authority: 21 U.S.C. 321(q), 346a and 371.                health and environmental risks                        Branch, Assessment and Remediation
                                           ■  2. In § 180.659, add alphabetically                        associated with the site and to                       Division, Office of Superfund
                                           ‘‘Potato, granules/flakes’’, ‘‘Vegetable,                     determine what CERCLA-financed                        Remediation and Technology
                                           bulb, group 3–07’’, and ‘‘Vegetable,                          remedial action(s), if any, may be                    Innovation (Mailcode 5204P), U.S.
                                           tuberous and corm, subgroup 1C’’ to the                       appropriate. This rule adds six sites to              Environmental Protection Agency; 1200
                                                                                                         the General Superfund section of the                  Pennsylvania Avenue NW, Washington,
                                           table in paragraph (a)(5) to read as
                                                                                                         NPL.                                                  DC 20460; or the Superfund Hotline,
                                           follows:
                                                                                                         DATES:  The document is effective on                  phone (800) 424–9346 or (703) 412–
                                           § 180.659 Pyroxasulfone; tolerances for                       June 18, 2018.                                        9810 in the Washington, DC,
                                           residues.                                                                                                           metropolitan area.
                                                                                                         ADDRESSES: Contact information for the
                                                                                                                                                               SUPPLEMENTARY INFORMATION:
                                               (a) * * *                                                 EPA Headquarters:
                                               (5) * * *                                                    • Docket Coordinator, Headquarters;                Table of Contents
                                                                                                         U.S. Environmental Protection Agency;                 I. Background
                                                                                       Parts per         CERCLA Docket Office; 1301                               A. What are CERCLA and SARA?
                                                        Commodity                                        Constitution Avenue NW, William
                                                                                        million                                                                   B. What is the NCP?
                                                                                                         Jefferson Clinton Building West, Room                    C. What is the National Priorities List
                                                                                                         3334, Washington, DC 20004, 202/566–                        (NPL)?
                                              *         *         *              *              *        0276.                                                    D. How are sites listed on the NPL?
                                           Potato, granules/flakes ...............              0.20        The contact information for the                       E. What happens to sites on the NPL?
                                                                                                         regional dockets is as follows:                          F. Does the NPL define the boundaries of
                                                                                                                                                                     sites?
                                             *         *         *          *                   *           • Holly Inglis, Region 1 (CT, ME, MA,
                                           Vegetable, bulb, group 3–07 ......                   0.15                                                              G. How are sites removed from the NPL?
                                                                                                         NH, RI, VT), U.S. EPA, Superfund                         H. May the EPA delete portions of sites
                                                                                                         Records and Information Center, 5 Post                      from the NPL as they are cleaned up?
                                              *         *          *               *            *        Office Square, Suite 100, Boston, MA                     I. What is the Construction Completion List
                                           Vegetable, tuberous and corm,                                 02109–3912; 617/918–1413.                                   (CCL)?
                                             subgroup 1C ...........................            0.08        • Ildefonso Acosta, Region 2 (NJ, NY,                 J. What is the Sitewide Ready for
                                                                                                         PR, VI), U.S. EPA, 290 Broadway, New                        Anticipated Use measure?
                                           *      *       *       *      *                               York, NY 10007–1866; 212/637–4344.                       K. What is state/tribal correspondence
                                           [FR Doc. 2018–10582 Filed 5–16–18; 8:45 am]
                                                                                                            • Lorie Baker (ASRC), Region 3 (DE,                      concerning NPL Listing?
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                                           BILLING CODE 6560–50–P                                        DC, MD, PA, VA, WV), U.S. EPA,                        II. Availability of Information to the Public
                                                                                                                                                                  A. May I review the documents relevant to
                                                                                                         Library, 1650 Arch Street, Mailcode                         this final rule?
                                                                                                         3HS12, Philadelphia, PA 19103; 215/                      B. What documents are available for review
                                                                                                         814–3355.                                                   at the EPA Headquarters docket?
                                                                                                            • Cathy Amoroso, Region 4 (AL, FL,                    C. What documents are available for review
                                                                                                         GA, KY, MS, NC, SC, TN), U.S. EPA, 61                       at the EPA regional dockets?



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Document Created: 2018-05-17 00:51:10
Document Modified: 2018-05-17 00:51:10
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 May 17, 2018. Objections and requests for hearings must be received on or before July 16, 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 Goodis, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460-0001; main telephone
FR Citation83 FR 22854 
CFR AssociatedEnvironmental Protection; Administrative Practice and Procedure; Agricultural Commodities; Pesticides and Pests and Reporting and Recordkeeping Requirements

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