Trifloxystrobin; Pesticide Tolerances, 9772-9777 [2016-04070]
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Federal Register / Vol. 81, No. 38 / Friday, February 26, 2016 / Rules and Regulations
a. Adding entries (110) and (111) in
numerical order to table (d); and
b. Adding new entry (42) in numerical
order to table (e) to read as follows:
■
■
§ 52.820
*
Identification of plan.
*
*
(d) * * *
*
*
EPA-APPROVED IOWA SOURCE-SPECIFIC ORDERS/PERMITS
State effective
date
EPA Approval date
*
*
*
Administrative Consent Order No. 2015–AQ–02 .......
*
1/29/15
Permit No. 14–A–521 .................................................
9/2/14
*
2/26/16 [Insert Federal
Register citation].
2/26/16 [Insert Federal
Register citation].
Name of source
Order/Permit No.
*
(110) Griffin Pipe Products
Co., LLC.
(111) Alter Metal Recycling.
Explanation
*
(e) * * *
EPA-APPROVED IOWA NONREGULATORY PROVISIONS
Name of nonregulatory
SIP provision
*
(42) Lead attainment SIP
Applicable geographic or nonattainment area
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2014–0709; FRL–9941–92]
Trifloxystrobin; Pesticide Tolerances
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This regulation establishes
tolerances for residues of trifloxystrobin
in or on multiple commodities which
are identified and discussed later in this
document. Bayer CropScience requested
these tolerances under the Federal Food,
Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective
February 26, 2016. Objections and
requests for hearings must be received
on or before April 26, 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–2014–0709, is
available at
https://www.regulations.gov or at the
Office of Pesticide Programs Regulatory
SUMMARY:
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EPA Approval date
*
1/30/15
*
2/26/16 [Insert Federal
Register citation].
*
*
*
Portions of Pottawattamie County ..............................
[FR Doc. 2016–04082 Filed 2–25–16; 8:45 am]
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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
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Explanation
*
[EPA–R07–
OAR–2015–
0582; FRL–
9942–79–
Region 7].
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/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–2014–0709 in the subject line on
the first page of your submission. All
objections and requests for a hearing
must be in writing, and must be
received by the Hearing Clerk on or
before April 26, 2016. Addresses for
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mail and hand delivery of objections
and hearing requests are provided in 40
CFR 178.25(b).
In addition to filing an objection or
hearing request with the Hearing Clerk
as described in 40 CFR part 178, please
submit a copy of the filing (excluding
any Confidential Business Information
(CBI)) for inclusion in the public docket.
Information not marked confidential
pursuant to 40 CFR part 2 may be
disclosed publicly by EPA without prior
notice. Submit the non-CBI copy of your
objection or hearing request, identified
by docket ID number EPA–HQ–OPP–
2014–0709, 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 February
11, 2015 (80 FR 7559) (FRL–9921–94),
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 4F8288) by Bayer
CropScience, 2 T.W. Alexander Drive,
P.O. Box 12014, Research Triangle Park,
NC 27709. The petition requested that
40 CFR 180.555 be amended by
establishing tolerances for residues of
the fungicide trifloxystrobin,
benzeneacetic acid, (E, E)-a(methoxyimino)-2-[[[[1-[3(trifluoromethyl)phenyl]ethylidene]
amino]oxy]methyl]-, methyl ester, and
the free form of its acid metabolite CGA321113, (E,E)-methoxyimino-[2-[1-(3trifluoromethyl-phenyl)ethylideneaminooxymethyl]phenyl]acetic acid, calculated as the
stoichiometric equivalent of
trifloxystrobin, in or on leafy greens
(crop subgroup 4A) at 30 parts per
million (ppm); herb (crop subgroup
19A) at 200 ppm; spice (crop subgroup
19B), except black pepper) at 30 ppm;
head and stem brassica (crop subgroup
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5A) at 2 ppm; leafy brassica greens (crop
subgroup 5B) at 30 ppm; tuberous and
corm vegetables (crop subgroup 1C) at
0.04 ppm; small fruit vine climbing
(except fuzzy kiwifruit) (crop subgroup
13–07F) at 2.0 ppm; and low growing
berry (crop subgroup 13–07G) at 1.5
ppm. Bayer CropScience, also requested
that the existing tolerance for leafy
petioles (subgroup 4B) be amended from
3.5 ppm to 9 ppm. That document
referenced a summary of the petition
prepared by Bayer CropScience, the
registrant, which is available in the
docket, https://www.regulations.gov.
There were no comments received in
response to the notice of filing.
Based upon review of the data
supporting the petition, EPA has
modified the commodity terms for
several tolerances to reflect the correct
commodity definition. The reason 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 trifloxystrobin
including exposure resulting from the
tolerances established by this action.
EPA’s assessment of exposures and risks
associated with trifloxystrobin follows.
A. Toxicological Profile
EPA has evaluated the available
toxicity data and considered its validity,
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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.
Trifloxystrobin exhibits very low
toxicity following single oral, dermal
and inhalation exposures. It is a strong
dermal sensitizer and a mild dermal and
eye irritant. In repeated dose tests in
rats, the liver is the target organ for
trifloxystrobin; toxicity is induced
following oral and dermal exposure for
28 days. Liver effects characterized by
an increase in liver weights and an
increased incidence of hepatocellular
hypertrophy and/or hepatocellular
necrosis were seen in rats, mice, and
dogs. There is no concern for
neurotoxicity or immunotoxicity in the
database. In the rabbit developmental
toxicity study, an increase in the
incidence of fused sternabrae was seen
at a dose 10 times higher than the
maternal lowest observed adverse effect
level (LOAEL). In the rat reproduction
study, both parents and offspring
showed decreases in body weight
during lactation. The rat and rabbit
developmental and the rat reproduction
toxicity data do not demonstrate an
increase in susceptibility in the fetus or
other offspring. Trifloxystrobin is
classified as: ‘‘Not likely to be
Carcinogenic to Humans’’ based on both
the negative results in the battery of
mutagenicity tests (except at a cytoxic
dose in one in vitro test), and from the
long-term carcinogenicity studies in rats
and mice. Specific information on the
studies received and the nature of the
adverse effects caused by trifloxystrobin
as well as the no-observed-adverseeffect-level (NOAEL) and the lowestobserved-adverse-effect-level (LOAEL)
from the toxicity studies are discussed
in the document ‘‘Trifloxystrobin.
Aggregate Human Health Risk
Assessment for the Proposed New Uses
on Leafy Greens (Crop Subgroup 4A),
Head and Stem Brassica Vegetables
(Crop Subgroup 5A), Leafy Brassica
Greens (Crop Subgroup 5B), Herbs (Crop
Group 19A), and Spices, Except Black
Pepper (Crop Subgroup 19B); to Amend
the Current Tolerance on Leafy Petioles
(Crop Subgroup 4B); and to Convert the
Potato Tolerance to the Tuberous and
Corm Vegetables Subgroup (Crop
Subgroup 1C), Convert the Grape
Tolerance to the Small Fruit Vine
Climbing (Subgroup 13–07F), and
Convert the Strawberry Tolerance to the
Low Growing Berries (Subgroup 13–
07G).,’’ dated December 1, 2015.
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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://
www2.epa.gov/pesticide-science-andassessing-pesticide-risks/assessinghuman-health-risk-pesticides.
A summary of the toxicological
endpoints for trifloxystrobin used for
human risk assessment is discussed in
Unit III B of the final rule published in
the Federal Register of June 11, 2010.
However, subsequent to that Federal
Register publication, EPA reassessed the
liver effects seen in the 28-day dermal
toxicity study according to current
policy, and determined that since these
effects should not be considered
adverse, no toxicity endpoint was
identified. The NOAEL for the 28-day
dermal study was set at 1,000 mg/kg/
day and the LOAEL was not established.
Therefore, the endpoints assessed as
part of this action exclude the endpoint
for dermal exposure identified in the
table published in the above-referenced
Federal Register on June 11, 2010.
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C. Exposure Assessment
1. Dietary exposure from food and
feed uses. In evaluating dietary
exposure to trifloxystrobin, EPA
considered exposure under the
petitioned-for tolerances as well as all
existing trifloxystrobin tolerances in 40
CFR 180.555. EPA assessed dietary
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exposures from trifloxystrobin 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 trifloxystrobin. In estimating acute
dietary exposure EPA conducted an
analysis using the Dietary Exposure
Evaluation Model (DEEM–FCID)
Version 3.16. This model uses 2003–
2008 food consumption data from the
U.S. Department of Agriculture’s
(USDA’s) National Health and Nutrition
Examination Survey, What We Eat in
America (NHANES/WWEIA). An acute
dietary assessment was conducted
assuming tolerance level residues and
100 percent crop treated (PCT) for all
commodities.
ii. Chronic exposure. In conducting
the chronic dietary exposure assessment
EPA used the Dietary Exposure
Evaluation Model (DEEM–FCID)
Version 3.16. This model uses 2003–
2008 food consumption data from the
U.S. Department of Agriculture’s
(USDA’s) National Health and Nutrition
Examination Survey, What We Eat in
America (NHANES/WWEIA). As to
residue levels in food, EPA assumed
100% crop treated, tolerance level
residues, anticipated residues for some
crops, and default processing factors.
iii. Cancer. Based on the data
summarized in Unit III.A., EPA has
concluded that trifloxystrobin does not
pose a cancer risk to humans. Therefore,
a dietary exposure assessment for the
purpose of assessing cancer risk is
unnecessary.
iv. Anticipated residue and percent
crop treated (PCT) information. Section
408(b)(2)(E) of FFDCA authorizes EPA
to use available data and information on
the anticipated residue levels of
pesticide residues in food and the actual
levels of pesticide residues that have
been measured in food. If EPA relies on
such information, EPA must require
pursuant to FFDCA section 408(f)(1)
that data be provided 5 years after the
tolerance is established, modified, or
left in effect, demonstrating that the
levels in food are not above the levels
anticipated. For the present action, EPA
will issue such data call-ins as are
required by FFDCA section 408(b)(2)(E)
and authorized under FFDCA section
408(f)(1). Data will be required to be
submitted no later than 5 years from the
date of issuance of these tolerances.
2. Dietary exposure from drinking
water. The Agency used screening level
water exposure models in the dietary
exposure analysis and risk assessment
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for trifloxystrobin in drinking water.
These simulation models take into
account data on the physical, chemical,
and fate/transport characteristics of
trifloxystrobin. Further information
regarding EPA drinking water models
used in pesticide exposure assessment
can be found at https://www2.epa.gov/
pesticide-science-and-assessingpesticide-risks/about-water-exposuremodels-used-pesticide.
Based on the Pesticide Root Zone
Model/Exposure Analysis Modeling
System (PRZM/EXAMS) and Pesticide
Root Zone Model Ground Water (PRZM
GW) models, the estimated drinking
water concentrations (EDWCs) of
trifloxystrobin and its major degradation
product for acute exposures are
estimated to be 29 parts per billion
(ppb) for surface water, and 427 ppb for
ground water. For chronic non-cancer
exposure assessments, EDWCs are
estimated to be 23 ppb for surface water
and 365 ppb for ground water. Modeled
estimates of drinking water
concentrations were directly entered
into the acute (427 ppb) and chronic
(365 ppb) dietary assessments in the
Dietary Exposure Evaluation Model—
Food Commodity Intake Database
(DEEM–FCID) food categories of ‘‘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 nonoccupational, non-dietary exposure
(e.g., for lawn and garden pest control,
indoor pest control, termiticides, and
flea and tick control on pets).
Trifloxystrobin is currently registered
for the following uses that could result
in residential exposures: Ornamental
plants and turfgrass. EPA assessed
residential exposure from relevant
registered trifloxystrobin products using
the Agency’s 2012 Residential Standard
Operating Procedures (SOPs) along with
updates in dermal risk assessment
hazard and policy regarding body
weight in addition to the following
assumptions:
i. Residential handler exposures.
Residential handler exposure is
expected to be short-term only.
Intermediate-term exposures are not
likely because of the intermittent nature
of applications by homeowners. Dermal
handler exposures were not assessed
since no adverse systemic dermal
hazard was identified for trifloxystrobin.
ii. Residential post-application
exposures. Because dermal hazard has
not been identified for trifloxystrobin, a
quantitative post-application assessment
for dermal exposure is not necessary
and the only exposure scenarios
quantitatively assessed are for children
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1 to <2 years old who may experience
short-term incidental oral exposure to
trifloxystrobin from treated turf.
Incidental oral granule ingestion is not
applicable because there is no endpoint
identified for the acute dietary duration
for infants and children. Intermediateterm incidental oral post-application
exposures are not expected because
trifloxystrobin is not persistent in soil or
water; furthermore, the short-term
incidental oral risk estimates would be
protective of the possible intermediateterm incidental oral exposures because
the POD for both durations is the same.
Post-application inhalation exposure is
expected to be negligible for the
proposed residential uses.
Further information regarding EPA
standard assumptions and generic
inputs for residential exposures may be
found at https://www2.epa.gov/pesticidescience-and-assessing-pesticide-risks/
standard-operating-proceduresresidential-pesticide.
4. Cumulative effects from substances
with a common mechanism of toxicity.
Section 408(b)(2)(D)(v) of FFDCA
requires that, when considering whether
to establish, modify, or revoke a
tolerance, the Agency consider
‘‘available information’’ concerning the
cumulative effects of a particular
pesticide’s residues and ‘‘other
substances that have a common
mechanism of toxicity.’’
EPA has not found trifloxystrobin to
share a common mechanism of toxicity
with any other substances, and
trifloxystrobin does not appear to
produce a toxic metabolite produced by
other substances. For the purposes of
this tolerance action, therefore, EPA has
assumed that trifloxystrobin 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://www2.epa.gov/pesticide-scienceand-assessing-pesticide-risks/
cumulative-assessment-risk-pesticides.
D. Safety Factor for Infants and
Children
1. In general. Section 408(b)(2)(C) of
FFDCA provides that EPA shall apply
an additional tenfold (10X) margin of
safety for infants and children in the
case of threshold effects to account for
prenatal and postnatal toxicity and the
completeness of the database on toxicity
and exposure unless EPA determines
based on reliable data that a different
margin of safety will be safe for infants
and children. This additional margin of
safety is commonly referred to as the
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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 is no indication of increased
quantitative or qualitative susceptibility
to trifloxystrobin in rats or rabbits. In
the prenatal developmental study in
rats, there was no developmental
toxicity at and up to the limit dose. In
the prenatal developmental study in
rabbits, developmental toxicity was seen
at a dose that was higher than the dose
causing maternal toxicity. In the
multigeneration study, offspring and
parental LOAELs are at the same dose
level.
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
trifloxystrobin is complete.
ii. There is no indication that
trifloxystrobin 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
trifloxystrobin 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 exposure databases are complete or
are estimated based on data that
reasonably account for potential
exposures. The exposure assessments
will not underestimate the potential
dietary (food and drinking water) or
non-dietary exposures for infants and
children from the use of trifloxystrobin.
The acute and chronic dietary food
exposure assessment was conservatively
based on 100 PCT assumptions and
conservative ground water drinking
water modeling estimates. The dietary
drinking water assessment utilizes water
concentration values generated by
models and associated modeling
parameters which are designed to
provide conservative, health protective,
high-end estimates of water
concentrations, and are not likely to be
exceeded. In addition, the residential
post-application assessment is based
upon the residential SOPs employing
surrogate study data and reasonable
‘‘worst-case’’ assumptions. These data
and assessments are reliable and are not
expected to underestimate exposure and
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risk posed by trifloxystrobin to adults or
children as well as incidental oral
exposure of young children (1–2 years
old).
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
trifloxystrobin will occupy 3.1% of the
aPAD for females 13–49 years 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 trifloxystrobin
from food and water will utilize 71% of
the cPAD for infants (<1 year old), the
population group receiving the greatest
exposure.
Based on the explanation in Unit
III.C.3., regarding residential use
patterns, chronic residential exposure to
residues of trifloxystrobin is not
expected.
3. Short-term risk. Short-term
aggregate exposure takes into account
short-term residential exposure plus
chronic exposure to food and water
(considered to be a background
exposure level).
Trifloxystrobin is currently registered
for uses that could result in short-term
residential exposure, and the Agency
has determined that it is appropriate to
aggregate chronic exposure through food
and water with short-term residential
exposures to trifloxystrobin.
Using the exposure assumptions
described in this unit for short-term
exposures, EPA has concluded the
combined short-term food, water, and
residential exposures result in aggregate
MOEs of 300 for adults and 120 for
children 1 to < 2 years old. Because
EPA’s level of concern for
trifloxystrobin is a MOE of 100 or
below, these MOEs are not of concern.
4. Intermediate-term risk.
Intermediate-term aggregate exposure
takes into account intermediate-term
residential exposure plus chronic
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exposure to food and water (considered
to be a background exposure level).
Although the Agency identified an
intermediate-term endpoint, the Agency
does not expect trifloxystrobin to result
in intermediate-term residential
exposure, due to the intermittent nature
of homeowner applications and its short
soil half-life (about 2 days). Therefore,
the Agency relies on the chronic risk
assessment to account for intermediateterm risk and concludes that
trifloxystrobin does not pose an
intermediate-term aggregate risk.
5. Aggregate cancer risk for U.S.
population. Based on the lack of
evidence of carcinogenicity in two
adequate rodent carcinogenicity studies,
trifloxystrobin is not expected to pose a
cancer risk to humans.
6. Determination of safety. Based on
these risk assessments, EPA concludes
that there is a reasonable certainty that
no harm will result to the general
population, or to infants and children
from aggregate exposure to
trifloxystrobin residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology
(gas chromatography with nitrogen
phosphorus detection (GC/NPD),
Method AG–659A) is available to
enforce the tolerance expression for the
combined residues of trifloxystrobin
and CGA–321113 in plant and livestock
commodities. The lowest level of
method validation (LLMV) is equivalent
to the limit of quantitation (LOQ) which
was 0.010 ppm for each analyte in/on
all matrices.
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.
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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
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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 established MRLs for
trifloxystrobin in or on lettuce, head at
15 ppm; celery at 1 ppm; brussel sprouts
at 0.1 ppm; cabbage at 0.5 ppm; flower
head Brassicas (includes broccoli;
broccoli, Chinese; and cauliflower) at
0.5 ppm; potato at 0.2 ppm; grape at 3
ppm; and strawberry at 1 ppm. These
MRLs are different than the tolerances
established for trifloxystrobin in the
United States.
These tolerances, with exception to
grape and potato, cannot be harmonized
with the Codex MRLs because the MRLs
for those commodities are expressed in
terms of trifloxystrobin (parent only)
while U.S. tolerances are based on the
combined residues of trifloxystrobin
and its acid metabolite CGA–321113,
expressed in parent equivalents.
Therefore, harmonization is not possible
for these commodities as the Codex
MRLs are too low based on the U.S.
residue definition for tolerance
enforcement. For grape and potato, the
U.S. is establishing MRLs for the
requested representative crop groups;
fruit, small vine climbing, except fuzzy
kiwifruit, subgroup 13–07F and
vegetable, tuberous and corm, subgroup
1C. These MRLs will be lower than
Codex, but identical to Canadian MRLs
(for grape and potato). This will permit
harmonization with the existing
Canadian MRLs as requested by the
petitioner and facilitate trade with
Canada.
C. Revisions to Petitioned-For
Tolerances
The Agency is revising the
commodity terms for the requested
tolerances to reflect the common
commodity vocabulary currently used
by the Agency. Specifically, head and
stem Brassica subgroup 5A was changed
to Brassica, head and stem, subgroup
5A; leafy Brassica subgroup 5B was
changed to Brassica, leafy greens,
subgroup 5B; tuberous and corm
vegetable subgroup 1C was changed to
vegetable, tuberous and corm, subgroup
1C. small fruit vine climbing subgroup
(except fuzzy kiwifruit), subgroup 13–
07F was changed to fruit, small vine
climbing, except fuzzy kiwifruit,
subgroup 13–07F and low growing
berry, subgroup 13–07G was changed to
berry, low growing, subgroup 13–07G.
Bayer requested a tolerance for spice
(crop subgroup 19B), except black
pepper. As black pepper is the
representative commodity for spice
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subgroup 19B, it may not be excepted
from a tolerance. 40 CFR 180.40(h).
Without sufficient data to establish the
subgroup tolerance, the Agency is
establishing an individual tolerance for
the crop for which data was submitted—
dill, seed.
V. Conclusion
Therefore, tolerances are established
for residues of trifloxystrobin,
benzeneacetic acid, (E,E)-a(methoxyimino)-2-[[[[1-[3(trifluoromethyl) phenyl]ethylidene]
amino]oxy]methyl]-, methyl ester, and
the free form of its acid metabolite
CGA–321113, (E,E)-methoxyimino-[2-[1(3-trifluoromethyl-phenyl)ethylideneaminooxymethyl]phenyl]acetic acid, calculated as the
stoichiometric equivalent of
trifloxystrobin, in or on Brassica, head
and stem, subgroup 5A at 2 ppm;
Brassica, leafy greens, subgroup 5B at 30
ppm; herb subgroup 19A at 200 ppm;
dill, seed at 30 ppm; vegetable, tuberous
and corm, subgroup 1C at 0.04 ppm;
fruit, small vine climbing, except fuzzy
kiwifruit, subgroup 13–07F at 2.0 ppm;
berry, low growing, subgroup 13–07G at
1.5 ppm; and leaf petioles, subgroup 4A
at 30 ppm.
The existing tolerance for leaf petioles
subgroup 4B, is amended from 3.5 ppm
to 9 ppm based on new celery residue
data at zero day (pre-harvest interval)
PHI. The existing tolerance for potato at
0.04 ppm is being removed because it is
included with the new tolerance being
established for tuberous and corm
vegetables (crop subgroup 1C) at 0.04
ppm. Similarly, the current tolerances
for grape at 2.0 ppm and strawberry at
1.1 ppm are being removed as they are
included in the new tolerances for the
small fruit vine climbing (subgroup 13–
07F) at 2.0 ppm, and low growing
berries (subgroup 13–07G) at 1.5 ppm,
respectively.
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
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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: February 11, 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 § 180.555, is amended:
a. By alphabetically adding the
commodities to the table in paragraph
(a);
■ b. By removing ‘‘Grape’’, ‘‘Potato’’,
and ‘‘Strawberry’’ from the table in
paragraph (a);
■ c. By revising ‘‘Leaf petioles subgroup
4B’’ in the table in paragraph (a).
The additions and revision read as
follows:
■
■
§ 180.555 Trifloxystrobin; tolerances for
residues.
(a) General. * * *
Parts per
million
Commodity
*
*
*
*
*
*
*
Dill, seed ..................................................................................................................................................................................................
*
*
*
*
*
*
*
Fruit, small vine climbing, except fuzzy kiwifruit, subgroup 13–07F .......................................................................................................
*
*
*
*
*
*
*
Herbs, subgroup 19A ...............................................................................................................................................................................
*
*
*
*
*
*
*
Leaf petioles subgroup 4B .......................................................................................................................................................................
Leafy greens, subgroup 4A .....................................................................................................................................................................
*
*
*
*
*
*
*
Vegetable, tuberous and corm, subgroup 1C .........................................................................................................................................
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*
*
*
*
*
*
Berry, low growing subgroup 13–07G .....................................................................................................................................................
Brassica, head and stem, subgroup 5A ..................................................................................................................................................
Brassica, leafy greens, subgroup 5B ......................................................................................................................................................
*
*
*
*
*
*
*
*
*
*
*
*
[FR Doc. 2016–04070 Filed 2–25–16; 8:45 am]
BILLING CODE 6560–50–P
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Agencies
[Federal Register Volume 81, Number 38 (Friday, February 26, 2016)]
[Rules and Regulations]
[Pages 9772-9777]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-04070]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2014-0709; FRL-9941-92]
Trifloxystrobin; Pesticide Tolerances
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes tolerances for residues of
trifloxystrobin in or on multiple commodities which are identified and
discussed later in this document. Bayer CropScience requested these
tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective February 26, 2016. Objections and
requests for hearings must be received on or before April 26, 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-2014-0709, 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-2014-0709 in the subject line on the first
page of your submission. All objections and requests for a hearing must
be in writing, and must be received by the Hearing Clerk on or before
April 26, 2016. Addresses for
[[Page 9773]]
mail and hand delivery of objections and hearing requests are provided
in 40 CFR 178.25(b).
In addition to filing an objection or hearing request with the
Hearing Clerk as described in 40 CFR part 178, please submit a copy of
the filing (excluding any Confidential Business Information (CBI)) for
inclusion in the public docket. Information not marked confidential
pursuant to 40 CFR part 2 may be disclosed publicly by EPA without
prior notice. Submit the non-CBI copy of your objection or hearing
request, identified by docket ID number EPA-HQ-OPP-2014-0709, 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 February 11, 2015 (80 FR 7559) (FRL-
9921-94), 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
4F8288) by Bayer CropScience, 2 T.W. Alexander Drive, P.O. Box 12014,
Research Triangle Park, NC 27709. The petition requested that 40 CFR
180.555 be amended by establishing tolerances for residues of the
fungicide trifloxystrobin, benzeneacetic acid, (E, E)-[alpha]-
(methoxyimino)-2-[[[[1-[3-(trifluoromethyl)phenyl]ethylidene]
amino]oxy]methyl]-, methyl ester, and the free form of its acid
metabolite CGA-321113, (E,E)-methoxyimino-[2-[1-(3-trifluoromethyl-
phenyl)-ethylideneaminooxymethyl]-phenyl]acetic acid, calculated as the
stoichiometric equivalent of trifloxystrobin, in or on leafy greens
(crop subgroup 4A) at 30 parts per million (ppm); herb (crop subgroup
19A) at 200 ppm; spice (crop subgroup 19B), except black pepper) at 30
ppm; head and stem brassica (crop subgroup 5A) at 2 ppm; leafy brassica
greens (crop subgroup 5B) at 30 ppm; tuberous and corm vegetables (crop
subgroup 1C) at 0.04 ppm; small fruit vine climbing (except fuzzy
kiwifruit) (crop subgroup 13-07F) at 2.0 ppm; and low growing berry
(crop subgroup 13-07G) at 1.5 ppm. Bayer CropScience, also requested
that the existing tolerance for leafy petioles (subgroup 4B) be amended
from 3.5 ppm to 9 ppm. That document referenced a summary of the
petition prepared by Bayer CropScience, the registrant, which is
available in the docket, https://www.regulations.gov. There were no
comments received in response to the notice of filing.
Based upon review of the data supporting the petition, EPA has
modified the commodity terms for several tolerances to reflect the
correct commodity definition. The reason 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 trifloxystrobin including
exposure resulting from the tolerances established by this action.
EPA's assessment of exposures and risks associated with trifloxystrobin
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.
Trifloxystrobin exhibits very low toxicity following single oral,
dermal and inhalation exposures. It is a strong dermal sensitizer and a
mild dermal and eye irritant. In repeated dose tests in rats, the liver
is the target organ for trifloxystrobin; toxicity is induced following
oral and dermal exposure for 28 days. Liver effects characterized by an
increase in liver weights and an increased incidence of hepatocellular
hypertrophy and/or hepatocellular necrosis were seen in rats, mice, and
dogs. There is no concern for neurotoxicity or immunotoxicity in the
database. In the rabbit developmental toxicity study, an increase in
the incidence of fused sternabrae was seen at a dose 10 times higher
than the maternal lowest observed adverse effect level (LOAEL). In the
rat reproduction study, both parents and offspring showed decreases in
body weight during lactation. The rat and rabbit developmental and the
rat reproduction toxicity data do not demonstrate an increase in
susceptibility in the fetus or other offspring. Trifloxystrobin is
classified as: ``Not likely to be Carcinogenic to Humans'' based on
both the negative results in the battery of mutagenicity tests (except
at a cytoxic dose in one in vitro test), and from the long-term
carcinogenicity studies in rats and mice. Specific information on the
studies received and the nature of the adverse effects caused by
trifloxystrobin as well as the no-observed-adverse-effect-level (NOAEL)
and the lowest-observed-adverse-effect-level (LOAEL) from the toxicity
studies are discussed in the document ``Trifloxystrobin. Aggregate
Human Health Risk Assessment for the Proposed New Uses on Leafy Greens
(Crop Subgroup 4A), Head and Stem Brassica Vegetables (Crop Subgroup
5A), Leafy Brassica Greens (Crop Subgroup 5B), Herbs (Crop Group 19A),
and Spices, Except Black Pepper (Crop Subgroup 19B); to Amend the
Current Tolerance on Leafy Petioles (Crop Subgroup 4B); and to Convert
the Potato Tolerance to the Tuberous and Corm Vegetables Subgroup (Crop
Subgroup 1C), Convert the Grape Tolerance to the Small Fruit Vine
Climbing (Subgroup 13-07F), and Convert the Strawberry Tolerance to the
Low Growing Berries (Subgroup 13-07G).,'' dated December 1, 2015.
[[Page 9774]]
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://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/assessing-human-health-risk-pesticides.
A summary of the toxicological endpoints for trifloxystrobin used
for human risk assessment is discussed in Unit III B of the final rule
published in the Federal Register of June 11, 2010. However, subsequent
to that Federal Register publication, EPA reassessed the liver effects
seen in the 28-day dermal toxicity study according to current policy,
and determined that since these effects should not be considered
adverse, no toxicity endpoint was identified. The NOAEL for the 28-day
dermal study was set at 1,000 mg/kg/day and the LOAEL was not
established. Therefore, the endpoints assessed as part of this action
exclude the endpoint for dermal exposure identified in the table
published in the above-referenced Federal Register on June 11, 2010.
C. Exposure Assessment
1. Dietary exposure from food and feed uses. In evaluating dietary
exposure to trifloxystrobin, EPA considered exposure under the
petitioned-for tolerances as well as all existing trifloxystrobin
tolerances in 40 CFR 180.555. EPA assessed dietary exposures from
trifloxystrobin 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 trifloxystrobin. In estimating acute dietary exposure EPA conducted
an analysis using the Dietary Exposure Evaluation Model (DEEM-FCID)
Version 3.16. This model uses 2003-2008 food consumption data from the
U.S. Department of Agriculture's (USDA's) National Health and Nutrition
Examination Survey, What We Eat in America (NHANES/WWEIA). An acute
dietary assessment was conducted assuming tolerance level residues and
100 percent crop treated (PCT) for all commodities.
ii. Chronic exposure. In conducting the chronic dietary exposure
assessment EPA used the Dietary Exposure Evaluation Model (DEEM-FCID)
Version 3.16. This model uses 2003-2008 food consumption data from the
U.S. Department of Agriculture's (USDA's) National Health and Nutrition
Examination Survey, What We Eat in America (NHANES/WWEIA). As to
residue levels in food, EPA assumed 100% crop treated, tolerance level
residues, anticipated residues for some crops, and default processing
factors.
iii. Cancer. Based on the data summarized in Unit III.A., EPA has
concluded that trifloxystrobin does not pose a cancer risk to humans.
Therefore, a dietary exposure assessment for the purpose of assessing
cancer risk is unnecessary.
iv. Anticipated residue and percent crop treated (PCT) information.
Section 408(b)(2)(E) of FFDCA authorizes EPA to use available data and
information on the anticipated residue levels of pesticide residues in
food and the actual levels of pesticide residues that have been
measured in food. If EPA relies on such information, EPA must require
pursuant to FFDCA section 408(f)(1) that data be provided 5 years after
the tolerance is established, modified, or left in effect,
demonstrating that the levels in food are not above the levels
anticipated. For the present action, EPA will issue such data call-ins
as are required by FFDCA section 408(b)(2)(E) and authorized under
FFDCA section 408(f)(1). Data will be required to be submitted no later
than 5 years from the date of issuance of these tolerances.
2. Dietary exposure from drinking water. The Agency used screening
level water exposure models in the dietary exposure analysis and risk
assessment for trifloxystrobin in drinking water. These simulation
models take into account data on the physical, chemical, and fate/
transport characteristics of trifloxystrobin. Further information
regarding EPA drinking water models used in pesticide exposure
assessment can be found at https://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/about-water-exposure-models-used-pesticide.
Based on the Pesticide Root Zone Model/Exposure Analysis Modeling
System (PRZM/EXAMS) and Pesticide Root Zone Model Ground Water (PRZM
GW) models, the estimated drinking water concentrations (EDWCs) of
trifloxystrobin and its major degradation product for acute exposures
are estimated to be 29 parts per billion (ppb) for surface water, and
427 ppb for ground water. For chronic non-cancer exposure assessments,
EDWCs are estimated to be 23 ppb for surface water and 365 ppb for
ground water. Modeled estimates of drinking water concentrations were
directly entered into the acute (427 ppb) and chronic (365 ppb) dietary
assessments in the Dietary Exposure Evaluation Model--Food Commodity
Intake Database (DEEM-FCID) food categories of ``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).
Trifloxystrobin is currently registered for the following uses that
could result in residential exposures: Ornamental plants and turfgrass.
EPA assessed residential exposure from relevant registered
trifloxystrobin products using the Agency's 2012 Residential Standard
Operating Procedures (SOPs) along with updates in dermal risk
assessment hazard and policy regarding body weight in addition to the
following assumptions:
i. Residential handler exposures. Residential handler exposure is
expected to be short-term only. Intermediate-term exposures are not
likely because of the intermittent nature of applications by
homeowners. Dermal handler exposures were not assessed since no adverse
systemic dermal hazard was identified for trifloxystrobin.
ii. Residential post-application exposures. Because dermal hazard
has not been identified for trifloxystrobin, a quantitative post-
application assessment for dermal exposure is not necessary and the
only exposure scenarios quantitatively assessed are for children
[[Page 9775]]
1 to <2 years old who may experience short-term incidental oral
exposure to trifloxystrobin from treated turf. Incidental oral granule
ingestion is not applicable because there is no endpoint identified for
the acute dietary duration for infants and children. Intermediate-term
incidental oral post-application exposures are not expected because
trifloxystrobin is not persistent in soil or water; furthermore, the
short-term incidental oral risk estimates would be protective of the
possible intermediate-term incidental oral exposures because the POD
for both durations is the same. Post-application inhalation exposure is
expected to be negligible for the proposed residential uses.
Further information regarding EPA standard assumptions and generic
inputs for residential exposures may be found at https://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/standard-operating-procedures-residential-pesticide.
4. Cumulative effects from substances with a common mechanism of
toxicity. Section 408(b)(2)(D)(v) of FFDCA requires that, when
considering whether to establish, modify, or revoke a tolerance, the
Agency consider ``available information'' concerning the cumulative
effects of a particular pesticide's residues and ``other substances
that have a common mechanism of toxicity.''
EPA has not found trifloxystrobin to share a common mechanism of
toxicity with any other substances, and trifloxystrobin does not appear
to produce a toxic metabolite produced by other substances. For the
purposes of this tolerance action, therefore, EPA has assumed that
trifloxystrobin 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://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/cumulative-assessment-risk-pesticides.
D. Safety Factor for Infants and Children
1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA
shall apply an additional tenfold (10X) margin of safety for infants
and children in the case of threshold effects to account for prenatal
and postnatal toxicity and the completeness of the database on toxicity
and exposure unless EPA determines based on reliable data that a
different margin of safety will be safe for infants and children. This
additional margin of safety is commonly referred to as the FQPA Safety
Factor (SF). In applying this provision, EPA either retains the default
value of 10X, or uses a different additional safety factor when
reliable data available to EPA support the choice of a different
factor.
2. Prenatal and postnatal sensitivity. There is no indication of
increased quantitative or qualitative susceptibility to trifloxystrobin
in rats or rabbits. In the prenatal developmental study in rats, there
was no developmental toxicity at and up to the limit dose. In the
prenatal developmental study in rabbits, developmental toxicity was
seen at a dose that was higher than the dose causing maternal toxicity.
In the multigeneration study, offspring and parental LOAELs are at the
same dose level.
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 trifloxystrobin is complete.
ii. There is no indication that trifloxystrobin 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 trifloxystrobin 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 exposure databases are complete or are estimated based
on data that reasonably account for potential exposures. The exposure
assessments will not underestimate the potential dietary (food and
drinking water) or non-dietary exposures for infants and children from
the use of trifloxystrobin. The acute and chronic dietary food exposure
assessment was conservatively based on 100 PCT assumptions and
conservative ground water drinking water modeling estimates. The
dietary drinking water assessment utilizes water concentration values
generated by models and associated modeling parameters which are
designed to provide conservative, health protective, high-end estimates
of water concentrations, and are not likely to be exceeded. In
addition, the residential post-application assessment is based upon the
residential SOPs employing surrogate study data and reasonable ``worst-
case'' assumptions. These data and assessments are reliable and are not
expected to underestimate exposure and risk posed by trifloxystrobin to
adults or children as well as incidental oral exposure of young
children (1-2 years old).
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 trifloxystrobin will occupy 3.1% of the aPAD for females 13-49 years
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
trifloxystrobin from food and water will utilize 71% of the cPAD for
infants (<1 year old), the population group receiving the greatest
exposure.
Based on the explanation in Unit III.C.3., regarding residential
use patterns, chronic residential exposure to residues of
trifloxystrobin is not expected.
3. Short-term risk. Short-term aggregate exposure takes into
account short-term residential exposure plus chronic exposure to food
and water (considered to be a background exposure level).
Trifloxystrobin is currently registered for uses that could result
in short-term residential exposure, and the Agency has determined that
it is appropriate to aggregate chronic exposure through food and water
with short-term residential exposures to trifloxystrobin.
Using the exposure assumptions described in this unit for short-
term exposures, EPA has concluded the combined short-term food, water,
and residential exposures result in aggregate MOEs of 300 for adults
and 120 for children 1 to < 2 years old. Because EPA's level of concern
for trifloxystrobin is a MOE of 100 or below, these MOEs are not of
concern.
4. Intermediate-term risk. Intermediate-term aggregate exposure
takes into account intermediate-term residential exposure plus chronic
[[Page 9776]]
exposure to food and water (considered to be a background exposure
level). Although the Agency identified an intermediate-term endpoint,
the Agency does not expect trifloxystrobin to result in intermediate-
term residential exposure, due to the intermittent nature of homeowner
applications and its short soil half-life (about 2 days). Therefore,
the Agency relies on the chronic risk assessment to account for
intermediate-term risk and concludes that trifloxystrobin does not pose
an intermediate-term aggregate risk.
5. Aggregate cancer risk for U.S. population. Based on the lack of
evidence of carcinogenicity in two adequate rodent carcinogenicity
studies, trifloxystrobin is not expected to pose a cancer risk to
humans.
6. Determination of safety. Based on these risk assessments, EPA
concludes that there is a reasonable certainty that no harm will result
to the general population, or to infants and children from aggregate
exposure to trifloxystrobin residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology (gas chromatography with nitrogen
phosphorus detection (GC/NPD), Method AG-659A) is available to enforce
the tolerance expression for the combined residues of trifloxystrobin
and CGA-321113 in plant and livestock commodities. The lowest level of
method validation (LLMV) is equivalent to the limit of quantitation
(LOQ) which was 0.010 ppm for each analyte in/on all matrices.
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 established MRLs for trifloxystrobin in or on
lettuce, head at 15 ppm; celery at 1 ppm; brussel sprouts at 0.1 ppm;
cabbage at 0.5 ppm; flower head Brassicas (includes broccoli; broccoli,
Chinese; and cauliflower) at 0.5 ppm; potato at 0.2 ppm; grape at 3
ppm; and strawberry at 1 ppm. These MRLs are different than the
tolerances established for trifloxystrobin in the United States.
These tolerances, with exception to grape and potato, cannot be
harmonized with the Codex MRLs because the MRLs for those commodities
are expressed in terms of trifloxystrobin (parent only) while U.S.
tolerances are based on the combined residues of trifloxystrobin and
its acid metabolite CGA-321113, expressed in parent equivalents.
Therefore, harmonization is not possible for these commodities as the
Codex MRLs are too low based on the U.S. residue definition for
tolerance enforcement. For grape and potato, the U.S. is establishing
MRLs for the requested representative crop groups; fruit, small vine
climbing, except fuzzy kiwifruit, subgroup 13-07F and vegetable,
tuberous and corm, subgroup 1C. These MRLs will be lower than Codex,
but identical to Canadian MRLs (for grape and potato). This will permit
harmonization with the existing Canadian MRLs as requested by the
petitioner and facilitate trade with Canada.
C. Revisions to Petitioned-For Tolerances
The Agency is revising the commodity terms for the requested
tolerances to reflect the common commodity vocabulary currently used by
the Agency. Specifically, head and stem Brassica subgroup 5A was
changed to Brassica, head and stem, subgroup 5A; leafy Brassica
subgroup 5B was changed to Brassica, leafy greens, subgroup 5B;
tuberous and corm vegetable subgroup 1C was changed to vegetable,
tuberous and corm, subgroup 1C. small fruit vine climbing subgroup
(except fuzzy kiwifruit), subgroup 13-07F was changed to fruit, small
vine climbing, except fuzzy kiwifruit, subgroup 13-07F and low growing
berry, subgroup 13-07G was changed to berry, low growing, subgroup 13-
07G. Bayer requested a tolerance for spice (crop subgroup 19B), except
black pepper. As black pepper is the representative commodity for spice
subgroup 19B, it may not be excepted from a tolerance. 40 CFR
180.40(h). Without sufficient data to establish the subgroup tolerance,
the Agency is establishing an individual tolerance for the crop for
which data was submitted--dill, seed.
V. Conclusion
Therefore, tolerances are established for residues of
trifloxystrobin, benzeneacetic acid, (E,E)-[alpha]-(methoxyimino)-2-
[[[[1-[3-(trifluoromethyl) phenyl]ethylidene] amino]oxy]methyl]-,
methyl ester, and the free form of its acid metabolite CGA-321113,
(E,E)-methoxyimino-[2-[1-(3-trifluoromethyl-phenyl)-
ethylideneaminooxymethyl]-phenyl]acetic acid, calculated as the
stoichiometric equivalent of trifloxystrobin, in or on Brassica, head
and stem, subgroup 5A at 2 ppm; Brassica, leafy greens, subgroup 5B at
30 ppm; herb subgroup 19A at 200 ppm; dill, seed at 30 ppm; vegetable,
tuberous and corm, subgroup 1C at 0.04 ppm; fruit, small vine climbing,
except fuzzy kiwifruit, subgroup 13-07F at 2.0 ppm; berry, low growing,
subgroup 13-07G at 1.5 ppm; and leaf petioles, subgroup 4A at 30 ppm.
The existing tolerance for leaf petioles subgroup 4B, is amended
from 3.5 ppm to 9 ppm based on new celery residue data at zero day
(pre-harvest interval) PHI. The existing tolerance for potato at 0.04
ppm is being removed because it is included with the new tolerance
being established for tuberous and corm vegetables (crop subgroup 1C)
at 0.04 ppm. Similarly, the current tolerances for grape at 2.0 ppm and
strawberry at 1.1 ppm are being removed as they are included in the new
tolerances for the small fruit vine climbing (subgroup 13-07F) at 2.0
ppm, and low growing berries (subgroup 13-07G) at 1.5 ppm,
respectively.
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
[[Page 9777]]
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: February 11, 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. 180.555, is amended:
0
a. By alphabetically adding the commodities to the table in paragraph
(a);
0
b. By removing ``Grape'', ``Potato'', and ``Strawberry'' from the table
in paragraph (a);
0
c. By revising ``Leaf petioles subgroup 4B'' in the table in paragraph
(a).
The additions and revision read as follows:
Sec. 180.555 Trifloxystrobin; tolerances for residues.
(a) General. * * *
------------------------------------------------------------------------
Parts per
Commodity million
------------------------------------------------------------------------
* * * * * * *
Berry, low growing subgroup 13-07G......................... 1.5
Brassica, head and stem, subgroup 5A....................... 2.0
Brassica, leafy greens, subgroup 5B........................ 30
* * * * * * *
Dill, seed................................................. 30
* * * * * * *
Fruit, small vine climbing, except fuzzy kiwifruit, 2.0
subgroup 13-07F...........................................
* * * * * * *
Herbs, subgroup 19A........................................ 200
* * * * * * *
Leaf petioles subgroup 4B.................................. 9.0
Leafy greens, subgroup 4A.................................. 30
* * * * * * *
Vegetable, tuberous and corm, subgroup 1C.................. 0.04
* * * * * * *
------------------------------------------------------------------------
* * * * *
[FR Doc. 2016-04070 Filed 2-25-16; 8:45 am]
BILLING CODE 6560-50-P