Cloquintocet-mexyl; Pesticide Tolerances, 50630-50635 [2016-17534]
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Federal Register / Vol. 81, No. 148 / Tuesday, August 2, 2016 / Rules and Regulations
EPA-APPROVED FLORIDA NON-REGULATORY PROVISIONS
Provision
State
effective
date
*
*
March 2015 Regional Haze Progress Report ..
*
3/10/2015 ...
[FR Doc. 2016–18155 Filed 8–1–16; 8:45 am]
calculations for the first-round 2016
NUSA allowance allocations. EPA also
described the process for submitting any
objections to the preliminary
calculations.
In response to the May 27 NODA,
EPA received one written objection
addressing CSAPR NOX annual and
NOX ozone season allowance
recordations for 2016 to Missouri’s
existing CSAPR units, and the number
of allowances shown as available for
allocation to Missouri’s new units in
2016 in the May 27 NODA under those
programs. Due to an allowance
recordation error, two facilities in
Missouri with existing units did not
receive the CSAPR NOX annual and
ozone season existing unit allowance
allocations specified in Missouri’s
approved 2016 CSAPR State
Implementation Plan (SIP). This error in
turn impacted the number of NUSA
allowances shown in the May 27 NODA
as available for allocation to Missouri’s
new units for 2016 under those
programs. EPA corrected the recordation
error to the existing units by recording
a total of four additional CSAPR NOX
Annual allowances and two additional
CSAPR NOX Ozone Season allowances
to two facilities in Missouri, consistent
with the allocations for those facilities
specified by Missouri in their 2016
CSAPR SIP. EPA in turn adjusted
downward the number of allowances
available for allocation in Missouri’s
2016 CSAPR NOX Annual and CSAPR
NOX Ozone Season NUSA’s by four and
two allowances, respectively. Since the
downward correction to the number of
allowances available in Missouri’s 2016
NUSAs was relatively small, the number
of allowances allocated to new units in
Missouri in the first round was not
affected.
The final unit-by-unit data and
allowance allocation calculations are set
forth in Excel spreadsheets titled
‘‘CSAPR_NUSA_2016_NOx_Annual_
1st_Round_Final_Data’’, ‘‘CSAPR_
NUSA_2016_NOx_OS_1st_Round_
Final_Data’’, and ‘‘CSAPR_NUSA_2016_
SO2_1st_Round_Final_Data’’, available
on EPA’s Web site at https://www.epa.
gov/crossstaterule/actions.html. The
three spreadsheets show EPA’s final
determinations of first-round 2016
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 97
[FRL–9949–93–OAR]
Allocations of Cross-State Air
Pollution Rule Allowances From New
Unit Set-Asides for the 2016
Compliance Year
Environmental Protection
Agency (EPA).
ACTION: Final rule; notice of data
availability (NODA).
AGENCY:
The Environmental Protection
Agency (EPA) is providing notice of
emission allowance allocations to
certain units under the new unit setaside (NUSA) provisions of the CrossState Air Pollution Rule (CSAPR)
federal implementation plans (FIPs) and
is responding to objections to
preliminary calculations. EPA has
completed final calculations for the first
round of NUSA allowance allocations
for the 2016 compliance year and has
posted spreadsheets containing the
calculations on EPA’s Web site. The
final allocations are unchanged from the
preliminary calculations. EPA will
record the allocated allowances in
sources’ Allowance Management
System (AMS) accounts by August 1,
2016.
DATES: August 2, 2016.
FOR FURTHER INFORMATION CONTACT:
Questions concerning this action should
be addressed to Robert Miller at (202)
343–9077 or miller.robertl@epa.gov or to
Kenon Smith at (202) 343–9164 or
smith.kenon@epa.gov.
SUPPLEMENTARY INFORMATION: Under the
CSAPR FIPs, a portion of each state
budget for each of the four CSAPR
emissions trading programs is reserved
as a NUSA from which allowances are
allocated to eligible units through an
annual one- or two-round process. In a
NODA published in the Federal
Register on May 27, 2016 (81 FR 33636),
EPA described the allocation process
and provided notice of preliminary
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SUMMARY:
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Federal Register notice
Explanation
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NUSA allocations under the CSAPR
NOX annual, NOX ozone season, and
SO2 (Group 1 and Group 2) trading
programs, respectively.
Pursuant to CSAPR’s allowance
recordation timing requirements, the
allocated NUSA allowances will be
recorded in sources’ AMS accounts by
August 1, 2016. EPA notes that an
allocation or lack of allocation of
allowances to a given unit does not
constitute a determination that CSAPR
does or does not apply to the unit. EPA
also notes that NUSA allocations are
subject to potential correction if a unit
to which NUSA allowances have been
allocated for a given compliance year is
not actually an affected unit as of
January 1 (or May 1 in the case of the
NOX ozone season program) of the
compliance year.1
(Authority: 40 CFR 97.411(b), 97.511(b),
97.611(b), and 97.711(b).)
Dated: July 18, 2016.
Reid P. Harvey,
Director, Clean Air Markets Division, Office
of Atmospheric Programs, Office of Air and
Radiation.
[FR Doc. 2016–18152 Filed 8–1–16; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
EPA–HQ–OPP–2012–0843; FRL–9947–78]
Cloquintocet-mexyl; Pesticide
Tolerances
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This regulation establishes
tolerances for residues of cloquintocetmexyl and its acid metabolite in or on
multiple commodities which are
identified and discussed later in this
document when cloquintocet-mexyl is
used as an inert ingredient (herbicide
safener) in pesticide formulations
containing the new active ingredient
halauxifen-methyl (XDE-729 methyl).
SUMMARY:
1 See 40 CFR 97.411(c), 97.511(c), 97.611(c), and
97.711(c).
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Federal Register / Vol. 81, No. 148 / Tuesday, August 2, 2016 / Rules and Regulations
Dow AgroSciences, LLC requested these
tolerances under the Federal Food,
Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective
August 2, 2016. Objections and requests
for hearings must be received on or
before October 3, 2016, and must be
filed in accordance with the instructions
provided in 40 CFR part 178 (see also
Unit I.C. of the SUPPLEMENTARY
INFORMATION).
The docket for this action,
identified by docket identification (ID)
number EPA–HQ–OPP–2012–0843, is
available at https://www.regulations.gov
or at the Office of Pesticide Programs
Regulatory Public Docket (OPP Docket)
in the Environmental Protection Agency
Docket Center (EPA/DC), West William
Jefferson Clinton Bldg., Rm. 3334, 1301
Constitution Ave. NW., Washington, DC
20460–0001. The Public Reading Room
is open from 8:30 a.m. to 4:30 p.m.,
Monday through Friday, excluding legal
holidays. The telephone number for the
Public Reading Room is (202) 566–1744,
and the telephone number for the OPP
Docket is (703) 305–5805. Please review
the visitor instructions and additional
information about the docket available
at https://www.epa.gov/dockets.
FOR FURTHER INFORMATION CONTACT:
Susan Lewis, 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:
RDFRNotices@epa.gov.
SUPPLEMENTARY INFORMATION:
ADDRESSES:
I. General Information
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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
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the Government Printing Office’s e-CFR
site at https://www.ecfr.gov/cgi-bin/textidx?&c=ecfr&tpl=/ecfrbrowse/Title40/
40tab_02.tpl.
C. How can I file an objection or hearing
request?
Under FFDCA section 408(g), 21
U.S.C. 346a, any person may file an
objection to any aspect of this regulation
and may also request a hearing on those
objections. You must file your objection
or request a hearing on this regulation
in accordance with the instructions
provided in 40 CFR part 178. To ensure
proper receipt by EPA, you must
identify docket ID number EPA–HQ–
OPP–2012–0843 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 October 3, 2016. 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–
2012–0843, by one of the following
methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the online
instructions for submitting comments.
Do not submit electronically any
information you consider to be CBI or
other information whose disclosure is
restricted by statute.
• Mail: OPP Docket, Environmental
Protection Agency Docket Center (EPA/
DC), (28221T), 1200 Pennsylvania Ave.
NW., Washington, DC 20460–0001.
• Hand Delivery: To make special
arrangements for hand delivery or
delivery of boxed information, please
follow the instructions at https://
www.epa.gov/dockets/contacts.html.
Additional instructions on commenting
or visiting the docket, along with more
information about dockets generally, is
available at https://www.epa.gov/
dockets.
II. Summary of Petitioned-For
Tolerance
In the Federal Register of December
19, 2012 (77 FR 75082) (FRL–9372–6),
EPA issued a document pursuant to
FFDCA section 408(d)(3), 21 U.S.C.
346a(d)(3), announcing the filing of a
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pesticide petition (PP 2F8085) by Dow
AgroSciences LLC, 9330 Zionsville
Road, Indianapolis, IN 46268. The
petition requested that 40 CFR 180.560
be amended by expanding the
tolerances therein to cover residues of
the inert ingredient (herbicide safener)
cloquintocet-mexyl (acetic acid [(5chloro-8-quinolinyl) oxy]-, 1methylhexyl ester; CAS Reg. No. 99607–
70–2), and its acid metabolite (5-chloro8-quinolinoxyacetic acid) when used in
pesticide formulations containing the
new active ingredient halauxifen-methyl
(XDE-729 methyl), in or on barley grain,
barley hay, barley straw, wheat forage,
wheat grain, wheat hay, and wheat
straw. No numerical change to the
tolerances for the specific commodities
was sought. That document referenced a
summary of the petition prepared by
Dow AgroSciences LLC, the registrant,
which is available in the docket, https://
www.regulations.gov. There were no
comments received in response to the
notice of filing.
III. Aggregate Risk Assessment and
Determination of Safety
Section 408(b)(2)(A)(i) of FFDCA
allows EPA to establish a tolerance (the
legal limit for a pesticide chemical
residue in or on a food) only if EPA
determines that the tolerance is ‘‘safe.’’
Section 408(b)(2)(A)(ii) of FFDCA
defines ‘‘safe’’ to mean that ‘‘there is a
reasonable certainty that no harm will
result from aggregate exposure to the
pesticide chemical residue, including
all anticipated dietary exposures and all
other exposures for which there is
reliable information.’’ This includes
exposure through drinking water and in
residential settings, but does not include
occupational exposure. Section
408(b)(2)(C) of FFDCA requires EPA to
give special consideration to exposure
of infants and children to the pesticide
chemical residue in establishing a
tolerance and to ‘‘ensure that there is a
reasonable certainty that no harm will
result to infants and children from
aggregate exposure to the pesticide
chemical residue . . . .’’
Consistent with FFDCA section
408(b)(2)(D), and the factors specified in
FFDCA section 408(b)(2)(D), EPA has
reviewed the available scientific data
and other relevant information in
support of this action. EPA has
sufficient data to assess the hazards of
and to make a determination on
aggregate exposure for cloquintocetmexyl including exposure resulting
from the tolerances established by this
action. EPA’s assessment of exposures
and risks associated with cloquintocetmexyl follows.
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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.
Cloquintocet-mexyl has a low order of
acute oral, dermal, and inhalation
toxicity. It is slightly irritating to the
eyes and non-irritating to the skin.
Cloquintocet-mexyl is a skin sensitizer.
The chemical is not genotoxic and is not
a reproductive and developmental
toxicant. There is no evidence of
neurotoxicity in the available studies.
Cloquintocet-mexyl is classified as ‘‘not
likely to be a human carcinogen.’’ The
main metabolite for cloquintocet-mexyl
is 5-chloro-8-quin-linoxyacetic acid, and
testing on the metabolite is part of the
toxicology database for cloquintocetmexyl.
Specific information on the studies
received and the nature of the adverse
effects caused by cloquintocet-mexyl as
well as the no-observed-adverse-effectlevel (NOAEL) and the lowest-observedadverse-effect-level (LOAEL) from the
toxicity studies can be found at https://
www.regulations.gov in document
Cloquintocet-Mexyl—Updated Human
Health Risk Assessment from Uses of
Halauxifen-methyl (PC Code 117501) in
docket ID number EPA–HQ–OPP–2012–
0843.
B. Toxicological Points of Departure/
Levels of Concern
Once a pesticide’s toxicological
profile is determined, EPA identifies
toxicological points of departure (POD)
and levels of concern to use in
evaluating the risk posed by human
exposure to the pesticide. For hazards
that have a threshold below which there
is no appreciable risk, the toxicological
POD is used as the basis for derivation
of reference values for risk assessment.
PODs are developed based on a careful
analysis of the doses in each
toxicological study to determine the
dose at which no adverse effects are
observed (the NOAEL) and the lowest
dose at which adverse effects of concern
are identified (the LOAEL). Uncertainty/
safety factors are used in conjunction
with the POD to calculate a safe
exposure level—generally referred to as
a population-adjusted dose (PAD) or a
reference dose (RfD)—and a safe margin
of exposure (MOE). For non-threshold
risks, the Agency assumes that any
amount of exposure will lead to some
degree of risk. Thus, the Agency
estimates risk in terms of the probability
of an occurrence of the adverse effect
expected in a lifetime. For more
information on the general principles
EPA uses in risk characterization and a
complete description of the risk
assessment process, see https://
www.epa.gov/pesticides/factsheets/
riskassess.htm.
A summary of the toxicological
endpoints for cloquintocet-mexyl used
for human risk assessment is shown in
Table 1 of this unit.
TABLE 1—SUMMARY OF TOXICOLOGICAL DOSES AND ENDPOINTS FOR CLOQUINTOCET-MEXYL FOR USE IN HUMAN HEALTH
RISK ASSESSMENT
Exposure/scenario
Acute dietary (Females 13–49
years of age).
Acute dietary (General population including infants and
children).
Chronic dietary (All populations)
Cancer (Oral, dermal, inhalation).
Point of departure
and uncertainty/
safety factors
RfD, PAD, LOC for
risk assessment
Study and toxicological effects
NOAEL = 100 mg/
kg/day.
UFA = 10
UFH = 10
FQPA SF = 1x
N/A ...........................
Acute RfD = 1 mg/
kg/day.
aPAD = 1 mg/kg/day
Developmental toxicity study in rats (MRID 44387429).
LOAEL = 400 mg/kg/day based on higher incidence of skeletal
variants and decrease in fetal body weights in the high dose
group.
N/A ...........................
Based on available data, a suitable endpoint was not identified
for the general population because there were no effects observed in oral toxicity studies appropriate to this population
that could be attributed to a single dose exposure.
Chronic/Oncogenicity Toxicity—Rat (MRID 44387431).
LOAEL = 41.2 mg/kg/day based on thyroid hyperplasia in females.
NOAEL = 4.3 mg/kg/ Chronic RfD = 0.04
day.
mg/kg/day.
UFA = 10x
cPAD = 0.04 mg/kg/
UFH = 10x
day
FQPA SF = 1x
Cloquintocet-mexyl is classified as ‘‘not likely to be carcinogenic to humans’’.
FQPA SF = Food Quality Protection Act Safety Factor. LOAEL = lowest-observed-adverse-effect-level. LOC = level of concern. mg/kg/day =
milligram/kilogram/day. MOE = margin of exposure. NOAEL = no-observed-adverse-effect-level. PAD = population adjusted dose (a = acute, c =
chronic). RfD = reference dose. UF = uncertainty factor. UFA = extrapolation from animal to human (interspecies). UFDB = to account for the absence of data or other data deficiency. UFH = potential variation in sensitivity among members of the human population (intraspecies). UFL = use
of a LOAEL to extrapolate a NOAEL. UFS = use of a short-term study for long-term risk assessment.
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C. Exposure Assessment
1. Dietary exposure from food and
feed uses. In evaluating dietary
exposure to cloquintocet-mexyl, EPA
considered exposure under the
petitioned-for tolerances as well as all
existing cloquintocet-mexyl tolerances
in 40 CFR 180.560. EPA assessed dietary
exposures from cloquintocet-mexyl in
food as follows:
i. Acute exposure. Quantitative acute
dietary exposure and risk assessments
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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 cloquintocet-mexyl and are
applicable only to females 13–49 years
old in order to account for fetal effects
(higher incidence of skeletal variants
and decrease in fetal body weights) that
were seen in the developmental toxicity
study in rats. In estimating acute dietary
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exposure, EPA used food consumption
information from the 2003–2008
National Health and Nutrition
Examination Surveys (NHANES). As to
residue levels in food, EPA assumed
tolerance-level residues of cloquintocetmexyl and cloquintocet acid in all forms
of barley, triticale, and wheat, and
assumed that all of those crops are
treated (i.e., 100% crop treated).
ii. Chronic exposure. In conducting
the chronic dietary exposure assessment
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EPA used the food consumption data
from the 2003–2008 National Health
and Nutrition Examination Surveys
(NHANES). As to residue levels in food,
EPA assumed tolerance-level residues of
cloquintocet-mexyl and cloquintocet
acid in all forms of barley, triticale, and
wheat, and assumed that all of those
crops are treated (i.e., 100% crop
treated).
iii. Cancer. Based on the data
summarized in Unit III.A., EPA has
concluded that cloquintocet-mexyl does
not pose a cancer risk to humans.
Therefore, a dietary exposure
assessment for the purpose of assessing
cancer risk is unnecessary.
2. Dietary exposure from drinking
water. The Agency used screening-level
water exposure models in the dietary
exposure analysis and risk assessment
for cloquintocet-mexyl in drinking
water. These simulation models take
into account data on the physical,
chemical, and fate/transport
characteristics of cloquintocet-mexyl.
Further information regarding EPA
drinking water models used in pesticide
exposure assessment can be found at
https://www.epa.gov/oppefed1/models/
water/index.htm.
Based on the First Index Reservoir
Screening Tool (FIRST) and the
Screening Concentration in Ground
Water (SCI–GROW) models, the
estimated drinking water concentrations
(EDWCs) of cloquintocet-mexyl for
acute exposures are estimated to be
0.186 parts per billion (ppb) for surface
water and 0.000061 ppb for ground
water, chronic exposures are estimated
to be 0.005 ppb for surface water and
0.000061 ppb for ground water.
Modeled estimates of drinking water
concentrations were directly entered
into the dietary exposure model. As a
conservatism in the assessment, the
acute drinking water estimate (0.186
ppb), rather than the chronic drinking
water estimate (0.005 ppb) was used in
chronic dietary assessment.
3. From non-dietary exposure. The
term ‘‘residential exposure’’ is used in
this document to refer to nonoccupational, non-dietary exposure
(e.g., for lawn and garden pest control,
indoor pest control, termiticides, and
flea and tick control on pets).
Cloquintocet-mexyl 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
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pesticide’s residues and ‘‘other
substances that have a common
mechanism of toxicity.’’
EPA has not found cloquintocetmexyl to share a common mechanism of
toxicity with any other substances, and
cloquintocet-mexyl does not appear to
produce a toxic metabolite produced by
other substances. For the purposes of
this tolerance action, therefore, EPA has
assumed that cloquintocet-mexyl does
not have a common mechanism of
toxicity with other substances. For
information regarding EPA’s efforts to
determine which chemicals have a
common mechanism of toxicity and to
evaluate the cumulative effects of such
chemicals, see EPA’s Web site at https://
www.epa.gov/pesticides/cumulative.
D. Safety Factor for Infants and
Children
1. In general. Section 408(b)(2)(C) of
FFDCA provides that EPA shall apply
an additional tenfold (10X) margin of
safety for infants and children in the
case of threshold effects to account for
prenatal and postnatal toxicity and the
completeness of the database on toxicity
and exposure unless EPA determines
based on reliable data that a different
margin of safety will be safe for infants
and children. This additional margin of
safety is commonly referred to as the
FQPA Safety Factor (SF). In applying
this provision, EPA either retains the
default value of 10X, or uses a different
additional safety factor when reliable
data available to EPA support the choice
of a different factor.
2. Prenatal and postnatal sensitivity.
There was no evidence of increased
susceptibility of in utero or post-natal
exposure to rats or rabbits in the
prenatal developmental studies or in
rats in the 2-generation reproduction
study. NOAELs for maternal/parental
toxicity were either less than or equal to
the NOAELs for fetal or reproductive
toxicity.
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
cloquintocet-mexyl is sufficient for risk
assessment.
ii. There is no indication that
cloquintocet-mexyl is a neurotoxic
chemical and there is no need for a
developmental neurotoxicity study or
additional UFs to account for
neurotoxicity.
iii. There is no evidence that
cloquintocet-mexyl results in increased
susceptibility in in utero rats or rabbits
in the prenatal developmental studies or
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50633
in young rats in the 2-generation
reproduction study.
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 cloquintocetmexyl in drinking water. These
assessments will not underestimate the
exposure and risks posed by
cloquintocet-mexyl.
E. Aggregate Risks and Determination of
Safety
EPA determines whether acute and
chronic dietary pesticide exposures are
safe by comparing aggregate exposure
estimates to the acute PAD (aPAD) and
chronic PAD (cPAD). For linear cancer
risks, EPA calculates the lifetime
probability of acquiring cancer given the
estimated aggregate exposure. Short-,
intermediate-, and chronic-term risks
are evaluated by comparing the
estimated aggregate food, water, and
residential exposure to the appropriate
PODs to ensure that an adequate MOE
exists.
1. Acute risk. Using the exposure
assumptions discussed in this unit for
acute exposure, the acute dietary
exposure from food and water to
cloquintocet-mexyl will occupy <1% of
the aPAD for females age 13–49, 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 cloquintocetmexyl from food and water will utilize
<1% of the cPAD for all subpopulations.
There are no residential uses for
cloquintocet-mexyl.
3. Short-term and intermediate-term
risk. Because cloquintocet-mexyl is not
registered for use in pesticide
formulations that will result in
residential exposure, EPA concludes
that cloquintocet-mexyl will not pose a
short-term or intermediate-term risk.
4. Aggregate cancer risk for U.S.
population. Based on the lack of
evidence of carcinogenicity in two
adequate rodent carcinogenicity studies,
cloquintocet-mexyl 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 cloquintocetmexyl residues.
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02AUR1
50634
Federal Register / Vol. 81, No. 148 / Tuesday, August 2, 2016 / Rules and Regulations
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology
is available to enforce the tolerance
expression. The method may be
requested from: Chief, Analytical
Chemistry Branch, Environmental
Science Center, 701 Mapes Rd., Ft.
Meade, MD 20755–5350; telephone
number: (410) 305–2905; email address:
residuemethods@epa.gov.
Lhorne on DSK30JT082PROD with RULES
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 cloquintocetmexyl.
V. Conclusion
The residue data indicate that
combined residues of cloquintocetmexyl and cloquintocet acid are
unlikely to exceed the existing
tolerances for residues in barley,
triticale, and wheat commodities,
therefore, the existing tolerance levels
remain unchanged. However, the active
ingredient, halauxifen-methyl, will be
added to the list of active ingredients
addressed in the tolerance expression
for cloquintocet-mexyl as a result of this
tolerance amendment for cloquintocetmexyl.
Therefore, 40 CFR 180.560 is
amended by establishing a tolerance for
the combined residues of cloquintocetmexyl (acetic acid [(5-chloro-8quinolinyl) oxy]-, 1-methylhexyl ester;
CAS Reg. No. 99607–70–2) and its acid
metabolite (5-chloro-8-quinlinoxyacetic
acid) when used as an inert ingredient
(safener) in pesticide formulations
containing the active ingredients
clodinafop-propargyl (wheat only),
dicamba (wheat only), flucarbazonesodium (wheat only), halauxifen-methyl
(wheat or barley), pinoxaden (wheat or
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13:32 Aug 01, 2016
Jkt 238001
barley), or pyroxsulam (wheat only) at
0.1 ppm in/on barley commodities
(grain, hay, and straw), wheat grain, and
wheat straw; at 0.2 ppm in/on wheat
forage; and at 0.5 ppm in/on wheat hay.
VI. Statutory and Executive Order
Reviews
This action establishes tolerances
under FFDCA section 408(d) in
response to a petition submitted to the
Agency. The Office of Management and
Budget (OMB) has exempted these types
of actions from review under Executive
Order 12866, entitled ‘‘Regulatory
Planning and Review’’ (58 FR 51735,
October 4, 1993). Because this action
has been exempted from review under
Executive Order 12866, this action is
not subject to Executive Order 13211,
entitled ‘‘Actions Concerning
Regulations That Significantly Affect
Energy Supply, Distribution, or Use’’ (66
FR 28355, May 22, 2001) or Executive
Order 13045, entitled ‘‘Protection of
Children from Environmental Health
Risks and Safety Risks’’ (62 FR 19885,
April 23, 1997). This action does not
contain any information collections
subject to OMB approval under the
Paperwork Reduction Act (PRA) (44
U.S.C. 3501 et seq.), nor does it require
any special considerations under
Executive Order 12898, entitled
‘‘Federal Actions to Address
Environmental Justice in Minority
Populations and Low-Income
Populations’’ (59 FR 7629, February 16,
1994).
Since tolerances and exemptions that
are established on the basis of a petition
under FFDCA section 408(d), such as
the 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
PO 00000
Frm 00030
Fmt 4700
Sfmt 4700
with Indian Tribal Governments’’ (65 FR
67249, November 9, 2000) do not apply
to this action. In addition, this action
does not impose any enforceable duty or
contain any unfunded mandate as
described under Title II of the Unfunded
Mandates Reform Act (UMRA) (2 U.S.C.
1501 et seq.).
This action does not involve any
technical standards that would require
Agency consideration of voluntary
consensus standards pursuant to section
12(d) of the National Technology
Transfer and Advancement Act
(NTTAA) (15 U.S.C. 272 note).
VII. Congressional Review Act
Pursuant to the Congressional Review
Act (5 U.S.C. 801 et seq.), EPA will
submit a report containing this rule and
other required information to the U.S.
Senate, the U.S. House of
Representatives, and the Comptroller
General of the United States prior to
publication of the rule in the Federal
Register. This action is not a ‘‘major
rule’’ as defined by 5 U.S.C. 804(2).
List of Subjects in 40 CFR Part 180
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
Dated: June 28, 2016.
Susan Lewis,
Director, Registration Division, Office of
Pesticide Programs.
Therefore, 40 CFR chapter I is
amended as follows:
PART 180—[AMENDED]
1. The authority citation for part 180
continues to read as follows:
■
Authority: 21 U.S.C. 321(q), 346a and 371.
2. In § 180.560, revise the introductory
text of paragraph (a) to read as follows:
■
§ 180.560 Cloquintocet-mexyl; tolerances
for residues.
(a) General. Tolerances are
established for residues of the inert
ingredient cloquintocet-mexyl,
including its metabolites and
degradates, in or on the commodities in
the following table when used as a
safener in pesticide formulations
containing the active ingredients
clodinafop-propargyl (wheat only),
dicamba (wheat only), flucarbazonesodium (wheat only), halauxifen-methyl
(wheat or barley), pinoxaden (wheat or
barley), or pyroxsulam (wheat only).
Compliance with the tolerance levels
specified is to be determined by
measuring the combined residues of
cloquintocet-mexyl, (acetic acid [(5-
E:\FR\FM\02AUR1.SGM
02AUR1
Federal Register / Vol. 81, No. 148 / Tuesday, August 2, 2016 / Rules and Regulations
chloro-8-quinolinyl)oxy]-, 1methylhexyl ester; CAS Reg. No. 99607–
70–2) and its acid metabolite (5-chloro8-quinolinoxyacetic acid), expressed as
cloquintocet-mexyl, in or on the
following commodities:
*
*
*
*
*
[FR Doc. 2016–17534 Filed 8–1–16; 8:45 am]
BILLING CODE 6560–50–P
DEPARTMENT OF DEFENSE
Defense Acquisition Regulations
System
48 CFR Parts 202, 212, 242, 246, and
252
[Docket DARS–2015–0038]
RIN 0750–AI58
Defense Federal Acquisition
Regulation Supplement: Detection and
Avoidance of Counterfeit Electronic
Parts—Further Implementation
(DFARS Case 2014–D005)
Defense Acquisition
Regulations System, Department of
Defense (DoD).
ACTION: Final rule.
AGENCY:
DoD is issuing a final rule
amending the Defense Federal
Acquisition Regulation Supplement
(DFARS) to implement a requirement of
the National Defense Authorization Act
for Fiscal Year 2012, as modified by a
section of the National Defense
Authorization Act for Fiscal Year 2015,
that addresses required sources of
electronic parts for defense contractors
and subcontractors.
DATES: Effective August 2, 2016.
FOR FURTHER INFORMATION CONTACT: Ms.
Amy G. Williams, telephone 571–372–
6106.
SUMMARY:
SUPPLEMENTARY INFORMATION:
Lhorne on DSK30JT082PROD with RULES
I. Background
DoD published a proposed rule in the
Federal Register at 80 FR 56939 on
September 21, 2015, to further
implement section 818 of the National
Defense Authorization Act (NDAA) for
Fiscal Year (FY) 2012 (Pub. L. 112–81),
as modified by section 817 of the NDAA
for FY 2015 (Pub. L. 113–291).
In accordance with section 818, this
rule requires DoD contractors and
subcontractors, except in limited
circumstances, acquire electronic parts
from trusted suppliers in order to
further address the avoidance of
counterfeit electronic parts. DoD
contractors and subcontractors that are
not the original component
VerDate Sep<11>2014
13:32 Aug 01, 2016
Jkt 238001
manufacturer are required by this rule to
notify the contracting officer if it is not
possible to obtain an electronic part
from a trusted supplier. For those
instances where the contractor obtains
electronic parts from sources other than
a trusted supplier, the contractor is
responsible for inspection, test, and
authentication in accordance with
existing applicable industry standards.
This rule enhances DoD’s ability to
strengthen the integrity of the process
for acquisition of electronic parts and
benefits both the Government and
contractors. The careful selection of
suppliers and the inspection, testing,
and authentication of electronic parts
that are not traceable to the original
manufacturer are consistent with
industry risk-based processes and are
steps that a prudent contractor should
take notwithstanding this rule. The
avoidance of the proliferation of
counterfeit electronic parts in the DoD
supply chain reduces the risk of critical
failure of fielded systems such as
aircraft, ships, and other weapon
systems, thus protecting troops’ lives
and safety.
This rule is part of DoD’s
retrospective plan, completed in August
2011, under Executive Order 13563,
Improving Regulation and Regulatory
Review. DoD’s full plan and updates can
be accessed at: https://
www.regulations.gov/
#!docketDetail;D=DOD-2011-OS-0036.
Eighteen respondents submitted public
comments in response to the proposed
rule.
II. Discussion and Analysis
DoD reviewed the public comments in
the development of the final rule. A
discussion of the comments and the
changes made to the rule as a result of
those comments is provided, as follows:
A. Summary of Significant Changes
From the Proposed Rule
1. Definitions
• Replaces the definition of
‘‘authorized dealer’’ with a definition of
‘‘authorized supplier.’’
• Replaces the definition of ‘‘contract
electronics manufacturer’’ with a
definition of ‘‘contract manufacturer’’
and a definition of ‘‘authorized
aftermarket manufacturer.’’ This also
results in a conforming change to the
definition of ‘‘original manufacturer.’’
• Deletes the definition of ‘‘trusted
supplier’’ and adds a definition of
‘‘contractor-approved supplier.’’
• Amends the definition of ‘‘obsolete
electronic part’’ to utilize the newly
defined term ‘‘authorized aftermarket
manufacturer.’’
PO 00000
Frm 00031
Fmt 4700
Sfmt 4700
50635
• Makes conforming changes
throughout the rule in accordance with
the added, revised, or deleted
definitions.
2. Amends the following paragraphs
of DFARS clause 252.246–7008, Sources
of Electronic Parts, with conforming
changes to DFARS subpart 246.8, as
follows:
• (b)(1)—Clarifies ‘‘in production’’
and ‘‘currently available in stock’’.
• (b)(2) Introductory text—Clarifies
‘‘not in production’’ and ‘‘not currently
available in stock’’ and changes ‘‘or’’ to
‘‘and’’ in the condition for use of
contractor-approved suppliers, i.e.,
‘‘Obtain electronic parts that are not in
production by the original manufacturer
or an authorized aftermarket
manufacturer and not currently
available in stock from a source listed in
paragraph (b)(1) of this clause, from
suppliers identified by the Contractor as
contractor-approved suppliers . . . .’’
• (b)(2)(i)—For electronic parts not in
production and not currently available
in stock, adds to the requirement for use
of established counterfeit prevention
industry standards and processes, the
reference to the DoD-adopted standards
at https://assist.dla.mil, but allows use
of other appropriate standards. Use of
DoD-adopted counterfeit prevention
industry standards was previously
required in the definition of ‘‘trusted
supplier.’’
• (b)(2)(iii)—Specifies that the
contracting officer is the appropriate
DoD official to review and audit. This
function is also added at DFARS
242.302 as a contract administration
function that is delegable to the
administrative contracting officer.
• (b)(3)—Moves former paragraph (d)
to paragraph (b)(3), requiring prompt
notification in writing, and adds the
requirement that the contractor shall
make documentation of the inspection,
testing, and authentication of such
electronic parts available to the
contracting officer upon request if the
contractor—
Æ Obtains an electronic part from a
source other than any of the sources
identified in paragraph (b)(1) or (b)(2) of
the clause due to nonavailability from
such sources, or a subcontractor (other
than the original manufacturer) that
refuses to accept flowdown of the
clause; or
Æ Cannot confirm that an electronic
part is new or that it has not been
comingled in supplier new production
or stock with used, refurbished,
reclaimed, or returned parts.
• (c)(2)—Deletes contractor
consideration of alternative parts if the
contractor cannot establish traceability
from the original manufacturer for a
E:\FR\FM\02AUR1.SGM
02AUR1
Agencies
[Federal Register Volume 81, Number 148 (Tuesday, August 2, 2016)]
[Rules and Regulations]
[Pages 50630-50635]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-17534]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
EPA-HQ-OPP-2012-0843; FRL-9947-78]
Cloquintocet-mexyl; Pesticide Tolerances
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes tolerances for residues of
cloquintocet-mexyl and its acid metabolite in or on multiple
commodities which are identified and discussed later in this document
when cloquintocet-mexyl is used as an inert ingredient (herbicide
safener) in pesticide formulations containing the new active ingredient
halauxifen-methyl (XDE-729 methyl).
[[Page 50631]]
Dow AgroSciences, LLC requested these tolerances under the Federal
Food, Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective August 2, 2016. Objections and
requests for hearings must be received on or before October 3, 2016,
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-2012-0843, is available at https://www.regulations.gov or at the Office of Pesticide Programs Regulatory
Public Docket (OPP Docket) in the Environmental Protection Agency
Docket Center (EPA/DC), West William Jefferson Clinton Bldg., Rm. 3334,
1301 Constitution Ave. NW., Washington, DC 20460-0001. The Public
Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through
Friday, excluding legal holidays. The telephone number for the Public
Reading Room is (202) 566-1744, and the telephone number for the OPP
Docket is (703) 305-5805. Please review the visitor instructions and
additional information about the docket available at https://www.epa.gov/dockets.
FOR FURTHER INFORMATION CONTACT: Susan Lewis, 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: RDFRNotices@epa.gov.
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 https://www.ecfr.gov/cgi-bin/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl.
C. How can I file an objection or hearing request?
Under FFDCA section 408(g), 21 U.S.C. 346a, any person may file an
objection to any aspect of this regulation and may also request a
hearing on those objections. You must file your objection or request a
hearing on this regulation in accordance with the instructions provided
in 40 CFR part 178. To ensure proper receipt by EPA, you must identify
docket ID number EPA-HQ-OPP-2012-0843 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
October 3, 2016. 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-2012-0843, by one of
the following methods:
Federal eRulemaking Portal: https://www.regulations.gov.
Follow the online instructions for submitting comments. Do not submit
electronically any information you consider to be CBI or other
information whose disclosure is restricted by statute.
Mail: OPP Docket, Environmental Protection Agency Docket
Center (EPA/DC), (28221T), 1200 Pennsylvania Ave. NW., Washington, DC
20460-0001.
Hand Delivery: To make special arrangements for hand
delivery or delivery of boxed information, please follow the
instructions at https://www.epa.gov/dockets/contacts.html. Additional
instructions on commenting or visiting the docket, along with more
information about dockets generally, is available at https://www.epa.gov/dockets.
II. Summary of Petitioned-For Tolerance
In the Federal Register of December 19, 2012 (77 FR 75082) (FRL-
9372-6), 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
2F8085) by Dow AgroSciences LLC, 9330 Zionsville Road, Indianapolis, IN
46268. The petition requested that 40 CFR 180.560 be amended by
expanding the tolerances therein to cover residues of the inert
ingredient (herbicide safener) cloquintocet-mexyl (acetic acid [(5-
chloro-8-quinolinyl) oxy]-, 1-methylhexyl ester; CAS Reg. No. 99607-70-
2), and its acid metabolite (5-chloro-8-quinolinoxyacetic acid) when
used in pesticide formulations containing the new active ingredient
halauxifen-methyl (XDE-729 methyl), in or on barley grain, barley hay,
barley straw, wheat forage, wheat grain, wheat hay, and wheat straw. No
numerical change to the tolerances for the specific commodities was
sought. That document referenced a summary of the petition prepared by
Dow AgroSciences LLC, the registrant, which is available in the docket,
https://www.regulations.gov. There were no comments received in response
to the notice of filing.
III. Aggregate Risk Assessment and Determination of Safety
Section 408(b)(2)(A)(i) of FFDCA allows EPA to establish a
tolerance (the legal limit for a pesticide chemical residue in or on a
food) only if EPA determines that the tolerance is ``safe.'' Section
408(b)(2)(A)(ii) of FFDCA defines ``safe'' to mean that ``there is a
reasonable certainty that no harm will result from aggregate exposure
to the pesticide chemical residue, including all anticipated dietary
exposures and all other exposures for which there is reliable
information.'' This includes exposure through drinking water and in
residential settings, but does not include occupational exposure.
Section 408(b)(2)(C) of FFDCA requires EPA to give special
consideration to exposure of infants and children to the pesticide
chemical residue in establishing a tolerance and to ``ensure that there
is a reasonable certainty that no harm will result to infants and
children from aggregate exposure to the pesticide chemical residue . .
. .''
Consistent with FFDCA section 408(b)(2)(D), and the factors
specified in FFDCA section 408(b)(2)(D), EPA has reviewed the available
scientific data and other relevant information in support of this
action. EPA has sufficient data to assess the hazards of and to make a
determination on aggregate exposure for cloquintocet-mexyl including
exposure resulting from the tolerances established by this action.
EPA's assessment of exposures and risks associated with cloquintocet-
mexyl follows.
[[Page 50632]]
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.
Cloquintocet-mexyl has a low order of acute oral, dermal, and
inhalation toxicity. It is slightly irritating to the eyes and non-
irritating to the skin. Cloquintocet-mexyl is a skin sensitizer. The
chemical is not genotoxic and is not a reproductive and developmental
toxicant. There is no evidence of neurotoxicity in the available
studies. Cloquintocet-mexyl is classified as ``not likely to be a human
carcinogen.'' The main metabolite for cloquintocet-mexyl is 5-chloro-8-
quin-linoxyacetic acid, and testing on the metabolite is part of the
toxicology database for cloquintocet-mexyl.
Specific information on the studies received and the nature of the
adverse effects caused by cloquintocet-mexyl as well as the no-
observed-adverse-effect-level (NOAEL) and the lowest-observed-adverse-
effect-level (LOAEL) from the toxicity studies can be found at https://www.regulations.gov in document Cloquintocet-Mexyl--Updated Human
Health Risk Assessment from Uses of Halauxifen-methyl (PC Code 117501)
in docket ID number EPA-HQ-OPP-2012-0843.
B. Toxicological Points of Departure/Levels of Concern
Once a pesticide's toxicological profile is determined, EPA
identifies toxicological points of departure (POD) and levels of
concern to use in evaluating the risk posed by human exposure to the
pesticide. For hazards that have a threshold below which there is no
appreciable risk, the toxicological POD is used as the basis for
derivation of reference values for risk assessment. PODs are developed
based on a careful analysis of the doses in each toxicological study to
determine the dose at which no adverse effects are observed (the NOAEL)
and the lowest dose at which adverse effects of concern are identified
(the LOAEL). Uncertainty/safety factors are used in conjunction with
the POD to calculate a safe exposure level--generally referred to as a
population-adjusted dose (PAD) or a reference dose (RfD)--and a safe
margin of exposure (MOE). For non-threshold risks, the Agency assumes
that any amount of exposure will lead to some degree of risk. Thus, the
Agency estimates risk in terms of the probability of an occurrence of
the adverse effect expected in a lifetime. For more information on the
general principles EPA uses in risk characterization and a complete
description of the risk assessment process, see https://www.epa.gov/pesticides/factsheets/riskassess.htm.
A summary of the toxicological endpoints for cloquintocet-mexyl
used for human risk assessment is shown in Table 1 of this unit.
Table 1--Summary of Toxicological Doses and Endpoints for Cloquintocet-Mexyl for Use in Human Health Risk
Assessment
----------------------------------------------------------------------------------------------------------------
Point of departure
Exposure/scenario and uncertainty/ RfD, PAD, LOC for Study and toxicological effects
safety factors risk assessment
----------------------------------------------------------------------------------------------------------------
Acute dietary (Females 13-49 NOAEL = 100 mg/kg/ Acute RfD = 1 mg/kg/ Developmental toxicity study in
years of age). day. day. rats (MRID 44387429).
UFA = 10............ aPAD = 1 mg/kg/day. LOAEL = 400 mg/kg/day based on
UFH = 10............ higher incidence of skeletal
FQPA SF = 1x........ variants and decrease in fetal
body weights in the high dose
group.
Acute dietary (General population N/A................. N/A................ Based on available data, a
including infants and children). suitable endpoint was not
identified for the general
population because there were no
effects observed in oral toxicity
studies appropriate to this
population that could be
attributed to a single dose
exposure.
Chronic dietary (All populations) NOAEL = 4.3 mg/kg/ Chronic RfD = 0.04 Chronic/Oncogenicity Toxicity--Rat
day. mg/kg/day. (MRID 44387431).
UFA = 10x........... cPAD = 0.04 mg/kg/ LOAEL = 41.2 mg/kg/day based on
UFH = 10x........... day. thyroid hyperplasia in females.
FQPA SF = 1x........
Cancer (Oral, dermal, inhalation) Cloquintocet-mexyl is classified as ``not likely to be carcinogenic to
humans''.
----------------------------------------------------------------------------------------------------------------
FQPA SF = Food Quality Protection Act Safety Factor. LOAEL = lowest-observed-adverse-effect-level. LOC = level
of concern. mg/kg/day = milligram/kilogram/day. MOE = margin of exposure. NOAEL = no-observed-adverse-effect-
level. PAD = population adjusted dose (a = acute, c = chronic). RfD = reference dose. UF = uncertainty factor.
UFA = extrapolation from animal to human (interspecies). UFDB = to account for the absence of data or other
data deficiency. UFH = potential variation in sensitivity among members of the human population
(intraspecies). UFL = use of a LOAEL to extrapolate a NOAEL. UFS = use of a short-term study for long-term
risk assessment.
C. Exposure Assessment
1. Dietary exposure from food and feed uses. In evaluating dietary
exposure to cloquintocet-mexyl, EPA considered exposure under the
petitioned-for tolerances as well as all existing cloquintocet-mexyl
tolerances in 40 CFR 180.560. EPA assessed dietary exposures from
cloquintocet-mexyl 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 cloquintocet-mexyl and are applicable only to females 13-49 years
old in order to account for fetal effects (higher incidence of skeletal
variants and decrease in fetal body weights) that were seen in the
developmental toxicity study in rats. In estimating acute dietary
exposure, EPA used food consumption information from the 2003-2008
National Health and Nutrition Examination Surveys (NHANES). As to
residue levels in food, EPA assumed tolerance-level residues of
cloquintocet-mexyl and cloquintocet acid in all forms of barley,
triticale, and wheat, and assumed that all of those crops are treated
(i.e., 100% crop treated).
ii. Chronic exposure. In conducting the chronic dietary exposure
assessment
[[Page 50633]]
EPA used the food consumption data from the 2003-2008 National Health
and Nutrition Examination Surveys (NHANES). As to residue levels in
food, EPA assumed tolerance-level residues of cloquintocet-mexyl and
cloquintocet acid in all forms of barley, triticale, and wheat, and
assumed that all of those crops are treated (i.e., 100% crop treated).
iii. Cancer. Based on the data summarized in Unit III.A., EPA has
concluded that cloquintocet-mexyl does not pose a cancer risk to
humans. Therefore, a dietary exposure assessment for the purpose of
assessing cancer risk is unnecessary.
2. Dietary exposure from drinking water. The Agency used screening-
level water exposure models in the dietary exposure analysis and risk
assessment for cloquintocet-mexyl in drinking water. These simulation
models take into account data on the physical, chemical, and fate/
transport characteristics of cloquintocet-mexyl. Further information
regarding EPA drinking water models used in pesticide exposure
assessment can be found at https://www.epa.gov/oppefed1/models/water/index.htm.
Based on the First Index Reservoir Screening Tool (FIRST) and the
Screening Concentration in Ground Water (SCI-GROW) models, the
estimated drinking water concentrations (EDWCs) of cloquintocet-mexyl
for acute exposures are estimated to be 0.186 parts per billion (ppb)
for surface water and 0.000061 ppb for ground water, chronic exposures
are estimated to be 0.005 ppb for surface water and 0.000061 ppb for
ground water.
Modeled estimates of drinking water concentrations were directly
entered into the dietary exposure model. As a conservatism in the
assessment, the acute drinking water estimate (0.186 ppb), rather than
the chronic drinking water estimate (0.005 ppb) was used in chronic
dietary assessment.
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). Cloquintocet-mexyl 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 cloquintocet-mexyl to share a common mechanism of
toxicity with any other substances, and cloquintocet-mexyl does not
appear to produce a toxic metabolite produced by other substances. For
the purposes of this tolerance action, therefore, EPA has assumed that
cloquintocet-mexyl does not have a common mechanism of toxicity with
other substances. For information regarding EPA's efforts to determine
which chemicals have a common mechanism of toxicity and to evaluate the
cumulative effects of such chemicals, see EPA's Web site at https://www.epa.gov/pesticides/cumulative.
D. Safety Factor for Infants and Children
1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA
shall apply an additional tenfold (10X) margin of safety for infants
and children in the case of threshold effects to account for prenatal
and postnatal toxicity and the completeness of the database on toxicity
and exposure unless EPA determines based on reliable data that a
different margin of safety will be safe for infants and children. This
additional margin of safety is commonly referred to as the FQPA Safety
Factor (SF). In applying this provision, EPA either retains the default
value of 10X, or uses a different additional safety factor when
reliable data available to EPA support the choice of a different
factor.
2. Prenatal and postnatal sensitivity. There was no evidence of
increased susceptibility of in utero or post-natal exposure to rats or
rabbits in the prenatal developmental studies or in rats in the 2-
generation reproduction study. NOAELs for maternal/parental toxicity
were either less than or equal to the NOAELs for fetal or reproductive
toxicity.
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 cloquintocet-mexyl is sufficient for
risk assessment.
ii. There is no indication that cloquintocet-mexyl is a neurotoxic
chemical and there is no need for a developmental neurotoxicity study
or additional UFs to account for neurotoxicity.
iii. There is no evidence that cloquintocet-mexyl results in
increased susceptibility in in utero rats or rabbits in the prenatal
developmental studies or in young rats in the 2-generation reproduction
study.
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 cloquintocet-mexyl in drinking water. These
assessments will not underestimate the exposure and risks posed by
cloquintocet-mexyl.
E. Aggregate Risks and Determination of Safety
EPA determines whether acute and chronic dietary pesticide
exposures are safe by comparing aggregate exposure estimates to the
acute PAD (aPAD) and chronic PAD (cPAD). For linear cancer risks, EPA
calculates the lifetime probability of acquiring cancer given the
estimated aggregate exposure. Short-, intermediate-, and chronic-term
risks are evaluated by comparing the estimated aggregate food, water,
and residential exposure to the appropriate PODs to ensure that an
adequate MOE exists.
1. Acute risk. Using the exposure assumptions discussed in this
unit for acute exposure, the acute dietary exposure from food and water
to cloquintocet-mexyl will occupy <1% of the aPAD for females age 13-
49, 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
cloquintocet-mexyl from food and water will utilize <1% of the cPAD for
all subpopulations. There are no residential uses for cloquintocet-
mexyl.
3. Short-term and intermediate-term risk. Because cloquintocet-
mexyl is not registered for use in pesticide formulations that will
result in residential exposure, EPA concludes that cloquintocet-mexyl
will not pose a short-term or intermediate-term risk.
4. Aggregate cancer risk for U.S. population. Based on the lack of
evidence of carcinogenicity in two adequate rodent carcinogenicity
studies, cloquintocet-mexyl 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 cloquintocet-mexyl residues.
[[Page 50634]]
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology is available to enforce the
tolerance expression. The method may be requested from: Chief,
Analytical Chemistry Branch, Environmental Science Center, 701 Mapes
Rd., Ft. Meade, MD 20755-5350; telephone number: (410) 305-2905; email
address: residuemethods@epa.gov.
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 cloquintocet-mexyl.
V. Conclusion
The residue data indicate that combined residues of cloquintocet-
mexyl and cloquintocet acid are unlikely to exceed the existing
tolerances for residues in barley, triticale, and wheat commodities,
therefore, the existing tolerance levels remain unchanged. However, the
active ingredient, halauxifen-methyl, will be added to the list of
active ingredients addressed in the tolerance expression for
cloquintocet-mexyl as a result of this tolerance amendment for
cloquintocet-mexyl.
Therefore, 40 CFR 180.560 is amended by establishing a tolerance
for the combined residues of cloquintocet-mexyl (acetic acid [(5-
chloro-8-quinolinyl) oxy]-, 1-methylhexyl ester; CAS Reg. No. 99607-70-
2) and its acid metabolite (5-chloro-8-quinlinoxyacetic acid) when used
as an inert ingredient (safener) in pesticide formulations containing
the active ingredients clodinafop-propargyl (wheat only), dicamba
(wheat only), flucarbazone-sodium (wheat only), halauxifen-methyl
(wheat or barley), pinoxaden (wheat or barley), or pyroxsulam (wheat
only) at 0.1 ppm in/on barley commodities (grain, hay, and straw),
wheat grain, and wheat straw; at 0.2 ppm in/on wheat forage; and at 0.5
ppm in/on wheat hay.
VI. Statutory and Executive Order Reviews
This action establishes tolerances under FFDCA section 408(d) in
response to a petition submitted to the Agency. The Office of
Management and Budget (OMB) has exempted these types of actions from
review under Executive Order 12866, entitled ``Regulatory Planning and
Review'' (58 FR 51735, October 4, 1993). Because this action has been
exempted from review under Executive Order 12866, this action is not
subject to Executive Order 13211, entitled ``Actions Concerning
Regulations That Significantly Affect Energy Supply, Distribution, or
Use'' (66 FR 28355, May 22, 2001) or Executive Order 13045, entitled
``Protection of Children from Environmental Health Risks and Safety
Risks'' (62 FR 19885, April 23, 1997). This action does not contain any
information collections subject to OMB approval under the Paperwork
Reduction Act (PRA) (44 U.S.C. 3501 et seq.), nor does it require any
special considerations under Executive Order 12898, entitled ``Federal
Actions to Address Environmental Justice in Minority Populations and
Low-Income Populations'' (59 FR 7629, February 16, 1994).
Since tolerances and exemptions that are established on the basis
of a petition under FFDCA section 408(d), such as the 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).
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: June 28, 2016.
Susan Lewis,
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. 180.560, revise the introductory text of paragraph (a) to
read as follows:
Sec. 180.560 Cloquintocet-mexyl; tolerances for residues.
(a) General. Tolerances are established for residues of the inert
ingredient cloquintocet-mexyl, including its metabolites and
degradates, in or on the commodities in the following table when used
as a safener in pesticide formulations containing the active
ingredients clodinafop-propargyl (wheat only), dicamba (wheat only),
flucarbazone-sodium (wheat only), halauxifen-methyl (wheat or barley),
pinoxaden (wheat or barley), or pyroxsulam (wheat only). Compliance
with the tolerance levels specified is to be determined by measuring
the combined residues of cloquintocet-mexyl, (acetic acid [(5-
[[Page 50635]]
chloro-8-quinolinyl)oxy]-, 1-methylhexyl ester; CAS Reg. No. 99607-70-
2) and its acid metabolite (5-chloro-8-quinolinoxyacetic acid),
expressed as cloquintocet-mexyl, in or on the following commodities:
* * * * *
[FR Doc. 2016-17534 Filed 8-1-16; 8:45 am]
BILLING CODE 6560-50-P