Fluopicolide; Pesticide Tolerances, 12396-12401 [2014-04832]
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Federal Register / Vol. 79, No. 43 / Wednesday, March 5, 2014 / Rules and Regulations
Dated: February 13, 2014.
Mike Brinks,
Acting Regional Administrator, Region 7.
PART 52—APPROVAL AND
PROMULGATION OF
IMPLEMENTATION PLANS
Chapter I, title 40 of the Code of
Federal Regulations is amended as
follows:
Subpart AA—Missouri
2. In § 52.1320 the table in paragraph
(c), under Chapter 6 is amended by
revising the entry for ‘‘10–6.050’’ to read
as follows:
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1. The authority citation for part 52
continues to read as follows:
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§ 52.1320
Authority: 42 U.S.C. 7401 et seq.
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Identification of plan.
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(c) * * *
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EPA-APPROVED MISSOURI REGULATIONS
Missouri
citation
State effective
date
Title
EPA approval date
Explanation
Missouri Department of Natural Resources
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Chapter 6—Air Quality Standards, Definitions, Sampling and Reference Methods, and Air Pollution Control Regulations for the State of
Missouri
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10–6.050 .........
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Start-up, Shutdown, and Malfunction Conditions.
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[FR Doc. 2014–04779 Filed 3–4–14; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2012–0941; FRL–9906–19]
Fluopicolide; Pesticide Tolerances
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This regulation establishes
tolerances for indirect or inadvertent
residues of fluopicolide in or on corn,
field, forage; corn, field, grain; corn,
field, stover. Valent U.S.A. Corporation
requested these tolerances under the
Federal Food, Drug, and Cosmetic Act
(FFDCA).
DATES: This regulation is effective
March 5, 2014. Objections and requests
for hearings must be received on or
before May 5, 2014, 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–2012–0941, 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), EPA West
Bldg., Rm. 3334, 1301 Constitution Ave.
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SUMMARY:
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07/30/10
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03/05/14 [insert Federal Register page
number where the document begins].
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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: Lois
Rossi, Registration Division (7505P),
Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave. NW., Washington,
DC 20460–0001; 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).
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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–2012–0941 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 May 5, 2014. 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
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objection or hearing request, identified
by docket ID number EPA–HQ–OPP–
2012–0941, 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.htm.
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 January 16,
2013 (78 FR 3377) (FRL–9375–4), 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 (2F8099) by Valent U.S.A.
Corporation, 1600 Riviera Avenue, Suite
200; Walnut Creek, CA 94596. The
petition requested that 40 CFR 180.627
be amended by establishing tolerances
for indirect or inadvertent residues of
the fungicide fluopicolide, 2,6-dichloroN-[3-chloro-5-(trifluoromethyl)-2pyridylmethyl]-benzamide, and its
metabolite, 2,6-dichlorobenzamide, in
or on corn, field, forage at 0.09 parts per
million (ppm); corn, field, grain at 0.01
ppm; and corn, field, stover at 0.3 ppm.
These tolerances are being requested for
fluopicolide residues that are likely to
be found in or on corn when corn is
planted as a rotational crop into a field
that has previously been treated with
fluopicolide, not for residues that result
from direct application of fluopicolide
to corn. That document referenced a
summary of the petition prepared by
Valent U.S.A. Corporation, the
registrant, which EPA failed to make
available through https://
www.regulations.gov. Subsequently,
EPA posted the summary to the docket
via https://www.regulations.gov and
republished notice of the availability of
Valent’s summary of its petition in the
docket on September 12, 2013 (78 FR
56185) (FRL–9399–7). There were no
comments received in response to the
notice of filing.
Based upon review of the data
supporting the petition, EPA has revised
the proposed tolerances for corn, field,
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forage from 0.09 ppm to 0.08 ppm; and
for corn, field, stover from 0.3 ppm to
0.20 ppm. The reasons for these changes
are explained in Unit IV.D.
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 fluopicolide
including exposure resulting from the
tolerances established by this action.
EPA’s assessment of exposures and risks
associated with fluopicolide follows.
A. Toxicological Profile
EPA has evaluated the available
toxicity data and considered its validity,
completeness, and reliability as well as
the relationship of the results of the
studies to human risk. EPA has also
considered available information
concerning the variability of the
sensitivities of major identifiable
subgroups of consumers, including
infants and children.
The toxicological database indicates
that fluopicolide has relatively low
acute toxicity. Fluopicolide is not a
dermal sensitizer, primary eye irritant,
or primary skin irritant. The subchronic
and chronic toxicity studies showed
that the primary effects of fluopicolide
are in the liver. Kidney and thyroid
toxicity were observed in rats only.
Fluopicolide is not neurotoxic,
carcinogenic, nor mutagenic.
Developmental toxicity in the rabbit
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occurred only at doses that caused
severe maternal toxicity (including
death). In the rat, developmental effects
were seen only at high dose levels (700
milligrams/kilogram/day (mg/kg/day))
in the presence of maternal toxicity.
Similarly, offspring effects (decreased
body weight and body weight gain)
occurred only at levels causing
significant toxicity in parents of the
multi-generation reproductive toxicity
study. There is no evidence of increased
quantitative susceptibility of rat or
rabbit fetuses to in utero or postnatal
exposure to fluopicolide. No toxic
effects were observed in studies in
which fluopicolide was administered by
the dermal routes of exposure. The
toxicological profile for fluopicolide
suggests that increased durations of
exposure do not significantly increase
the severity of observed effects. The
rabbit developmental and rat chronic/
cancer studies were therefore
considered as potential studies for
deriving risk assessment endpoints for
all durations of exposure. Fluopicolide
is classified as ‘‘not likely to be
carcinogenic to humans’’, thus no
quantification of cancer risks is
required.
Fluopicolide shares a metabolite, 2,6dichlorobenzamide (BAM), with another
active ingredient, dichlobenil. Residues
of BAM are considered to be of
regulatory concern, and separate
toxicity data and endpoints for risk
assessment have been selected for BAM.
Since the toxicity profile for BAM has
not changed since the last assessment
EPA conducted for BAM, an analysis of
the toxicology profile of BAM can be
found in ‘‘Fluopicolide and its
Metabolite, 2,6-Dichlorobenzamide
(BAM). Amended Human Health Risk
Assessment to Support New Section 3
Uses on Brassica Leafy Greens Subgroup
5B, Potatoes, Sugar Beets, Carrots and to
Allow Rotation to Wheat,’’ dated
November 21, 2007 (‘‘2007 BAM Risk
Assessment’’) in docket ID number
EPA–HQ–OPP–2006–0481).
Specific information on the studies
received and the nature of the adverse
effects caused by fluopicolide as well as
the no-observed-adverse-effect-level
(NOAEL) and the lowest-observedadverse-effect-level (LOAEL) from the
toxicity studies can be found at https://
www.regulations.gov in document
‘‘Fluopicolide. Human Health Risk
Assessment of the new section 3
tolerance on Rotational Corn’’ in docket
ID number EPA–HQ–OPP–2012–0941.
B. Toxicological Points of Departure/
Levels of Concern
Once a pesticide’s toxicological
profile is determined, EPA identifies
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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 fluopicolide and BAM
used for human risk assessment is
discussed in Unit III.B. of the final rule
published in the Federal Register of
April 20, 2011 (76 FR 22045) (FRL–
8859–9).
C. Exposure Assessment
1. Dietary exposure from food and
feed uses. In evaluating dietary
exposure to fluopicolide, EPA
considered exposure under the
petitioned-for tolerances as well as all
existing fluopicolide tolerances in 40
CFR 180.627. EPA did not consider
additional exposures from BAM since
the proposed change in use pattern does
not add significantly to the BAM dietary
exposure, and residues of BAM due to
fluopicolide applications are
significantly lower than those from
dichlobenil applications. EPA is relying
on conclusions from the 2007 BAM Risk
Assessment. These conclusions remain
unchanged and a revised quantitative
BAM risk assessment was not
conducted to support the proposed
tolerances. EPA assessed dietary
exposures from fluopicolide 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
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occurring as a result of a 1-day or single
exposure. No such effects were
identified in the toxicological studies
for fluopicolide; therefore, a quantitative
acute dietary exposure assessment is
unnecessary.
Acute effects were identified for
BAM, and a conservative acute dietary
exposure assessment for BAM was
conducted. Maximum residues of BAM
from fluopicolide field trials on
tuberous and corm vegetables, leafy
vegetables (except brassica), fruiting
vegetables, cucurbit vegetables, grapes
(domestic and imported), (except
potato), and from dichlobenil field trials
on food commodities with established/
pending tolerances (40 CFR 180.231)
were included in the assessments. The
assessments used 100 percent crop
treated (PCT) except for apples,
blueberries, cherries, cranberries,
peaches, pears, and raspberries.
ii. Chronic exposure. A chronic
aggregate dietary (food and drinking
water) exposure and risk assessment
was conducted for fluopicolide using
the Dietary Exposure Evaluation Model
software with the Food Commodity
Intake Database (DEEM–FCID) Version
3.16. This software uses 2003–2008 food
consumption data from the U.S.
Department of Agriculture’s (USDA’s)
National Health and Nutrition
Examination Survey, What We Eat in
America, (NHANES/WWEIA). As to
residue levels in food, EPA assumed 100
PCT and tolerance-level residues.
A conservative chronic dietary
exposure assessment for BAM was
conducted as described in Unit III.C.1.i.
for the acute assessment.
iii. Cancer. Based on the data
summarized in Unit III.A., EPA has
concluded that fluopicolide does not
pose a cancer risk to humans. Therefore,
a quantitative dietary exposure
assessment for the purpose of assessing
cancer risk is unnecessary.
The carcinogenic potential of BAM
has been evaluated in only one species,
the rat. That study showed an increased
incidence of hepatocellular adenomas in
high-dose females that was marginally
statistically significant. In its previous
BAM assessment, EPA assumed that
BAM’s potential for carcinogenicity is
similar to the parent having the greatest
carcinogenic potential, specifically,
dichlobenil, which has been classified
as ‘‘Group C, possible human
carcinogen’’ and for which EPA used a
reference dose (RfD) approach for
quantification of human cancer risk.
Accordingly, EPA has assessed BAM’s
cancer risk by using an RfD approach.
For this assessment, EPA relied on BAM
chronic exposure assessment as
described in Unit III.C.1.ii.
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iv. Anticipated residue and PCT
information. EPA did not use
anticipated residue and/or PCT
information in the dietary assessment
for fluopicolide. Tolerance level
residues and/or 100 PCT were assumed
for all food commodities.
EPA used anticipated residues and
PCT information for the acute and
chronic dietary risk assessments for
BAM. For further analysis and EPA’s
findings under section 408(b)(2)(E) of
the FFDCA, see Unit III.C.1.iv. of the
preamble to the fluopicolide final rule
published in the Federal Register of
April 20, 2011 (76 FR 22045, 22050)
(FRL–8859–9).
2. Dietary exposure from drinking
water. A new drinking water assessment
was not necessary for the establishment
of tolerances resulting from inadvertent
residues of fluopicolide on rotational
corn. Previously, the Agency used
screening level water exposure models
in the dietary exposure analysis and risk
assessment for fluopicolide in drinking
water. These simulation models take
into account data on the physical,
chemical, and fate/transport
characteristics of fluopicolide. 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 surface water
concentrations estimated using the
Pesticide Root Zone Model/Exposure
Analysis Modeling System (PRZM/
EXAMS); and Screening Concentrations
in Ground Water (SCI–GROW) models,
the estimated environmental
concentrations (EECs) of fluopicolide for
chronic exposures (non-cancer)
assessments are estimated to be 24.14
ppb for surface water and 0.5 ppb for
ground water. Acute and cancer dietary
risks were not quantified, as previously
discussed.
Modeled estimates of drinking water
concentrations were directly entered
into the dietary exposure model. For the
chronic dietary risk assessment, the
water concentration of value 24.14 ppb
was used to assess the contribution to
drinking water.
Considering residues of BAM in
drinking water from uses of dichlobenil
and fluopicolide, the uses on
dichlobenil will result in the highest
residues in drinking water. Therefore,
the results from dichlobenil (from the
use of nutsedge at 10 lb dichlobenil
active ingredient/Acre (ai)/(A)) were
used in the 2007 BAM Risk Assessment,
i.e., 56.2 ppb was used as the value of
BAM residues in drinking water in the
dietary assessment for both the acute
and chronic assessment.
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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).
Fluopicolide is currently registered for
the following uses that could result in
short-term residential exposures:
Residential turf grass, recreational sites
and ornamental plants. EPA assessed
residential exposure using the following
assumptions: Residential handlers may
receive short-term dermal and
inhalation exposure to fluopicolide
when mixing, loading, and applying the
formulations. Residential postapplication exposure via the dermal
route is likely for adults and children
entering treated lawns or treated
gardens and during mowing and golfing
activities. Children may also experience
exposure via incidental non-dietary
ingestion (i.e., hand-to-mouth, object-tomouth (turfgrass), and soil ingestion)
during post-application activities on
treated turf. Further information
regarding EPA standard assumptions
and generic inputs for residential
exposures may be found at https://
www.epa.gov/pesticides/trac/science/
trac6a05.pdf.
BAM is a metabolite/degradate which
forms slowly; therefore, the scenarios
were assessed in the previous
assessment assuming that BAM is
present at levels which reflect high end
measurements observed in the longerterm metabolism studies in order to
provide a protective assessment. The
short-/intermediate-term dermal MOEs
for adults and children are 10,000 and
6,000, respectively, and the combined
incidental oral MOE for toddlers is
62,000. These MOEs are greater than the
LOC of 100 for dermal exposure and
1,000 for incidental oral exposure, on
the day of application, and therefore, are
not of concern. See 2007 BAM Risk
Assessment.
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.’’
Unlike other pesticides for which EPA
has followed a cumulative risk approach
based on a common mechanism of
toxicity, EPA has not made a common
mechanism of toxicity finding as to
fluopicolide and any other substances.
Although fluopicolide shares a common
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metabolite, BAM, with dichlobenil,
quantification of risks for residues of
BAM resulting from fluopicolide was
not done as part of this assessment
because they contribute an insignificant
amount to the total BAM exposure.
Furthermore, aggregate risks to BAM are
not of concern. For the purposes of this
tolerance action, EPA has not assumed
that fluopicolide has 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 the policy statements released by
EPA’s Office of Pesticide Programs
concerning common mechanism
determinations and procedures for
cumulating effects from substances
found to have a common mechanism on
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.
For fluopicolide, there is no evidence of
quantitative susceptibility following in
utero and/or postnatal exposure in the
rabbit and rat developmental toxicity
studies or in the 2-generation rat
reproduction study. Qualitative
susceptibility was observed in the rat
developmental toxicity study. Fetal
effects (reduced growth and skeletal
defects) and late-term abortions were
observed at doses at which only
decreased body weight gain were
observed in maternal animals. There is
low concern for this qualitative
susceptibility, because the fetal effects
and late-term abortions have been well
characterized and only occurred at a
dose level near the limit dose.
Protection of the maternal effects also
protects for any effects that may occur
during development. There are no
residual uncertainties concerning
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12399
prenatal and postnatal toxicity for
fluopicolide.
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
fluopicolide is complete.
ii. There is no indication that
fluopicolide is a neurotoxic chemical
and there is no need for a
developmental neurotoxicity study or
additional UFs to account for
neurotoxicity.
iii. As discussed in Unit III.D.2. in
this document, the degree of concern for
the prenatal and/or postnatal toxicity is
low; thus, there is no need for the 10X
FQPA safety factor to account for
potential prenatal or post-natal toxicity.
iv. There are no residual uncertainties
identified in the exposure databases.
The chronic dietary food exposure
assessments were performed based on
100 PCT and tolerance-level residues.
EPA made conservative (protective)
assumptions in the ground and surface
water modeling used to assess exposure
to fluopicolide in drinking water.
Although EPA has required additional
data on transferable residues from
treated turf for fluopicolide, EPA is
confident that it has not underestimated
turf exposure due to the
conservativeness of the default turf
transfer value and conservative
assumptions in the short-term turf
assessment procedures (e.g., assuming
residues do not degrade over the thirty
day assessment period and assuming
high-end activities on turf for every day
of the assessment period).
For reasons explained in III.D. of the
preamble to the fluopicolide final rule
published in the Federal Register of
April 20, 2011 (76 FR 22045) (FRL–
8859–9), EPA reduced the FQPA safety
factor for BAM to 1X for inhalation and
dermal exposure scenarios and retained
the 10X FQPA safety factor for all other
BAM exposure scenarios. EPA is relying
on the findings in the preamble of the
April 20, 2011 final rule and the 2007
BAM Risk Assessment for the BAM
FQPA safety factor determinations for
this action.
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-,
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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. An acute aggregate risk
assessment takes into account acute
exposure estimates from dietary
consumption of food and drinking
water. No adverse effect resulting from
a single oral exposure was identified
and no acute dietary endpoint was
selected. Therefore, fluopicolide is not
expected to pose an acute risk.
The acute dietary exposure estimates
for BAM at the 99.9th percentile of the
exposure distribution are 11% of the
aPAD for the general U.S. population
and 28% aPAD for all infants 1 year old,
the most highly exposed group.
2. Chronic risk. Using the exposure
assumptions described in this unit for
chronic exposure, EPA has concluded
that chronic exposure to fluopicolide
from food and water will utilize 12% of
the cPAD for children 1–2 years of age,
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
fluopicolide is not expected.
The chronic dietary exposure
estimates for BAM are 29% of the
chronic cPAD for the general U.S.
population and 93% cPAD for all
infants (< 1 year old), the most highly
exposed group, which is not of concern
to the Agency.
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). Fluopicolide 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 fluopicolide.
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 110 for adult males and
females and 183 for children 6–11 years
of age. Because EPA’s level of concern
for fluopicolide is a MOE of 100 or
below, these MOEs are not of concern.
Short-term exposures for
fluopicolide’s metabolite BAM, may
occur as a result of activities on treated
turf. Incidental oral exposures related to
turf activities have been combined with
chronic dietary exposure estimates to
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assess short-term aggregate exposure for
BAM. Since aggregate MOEs for BAM
are greater than the LOC, they represent
risk estimates that are below the
Agency’s level of concern.
4. Intermediate-term risk.
Intermediate-term aggregate exposure
takes into account intermediate-term
residential exposure plus chronic
exposure to food and water (considered
to be a background exposure level).
Intermediate-term exposures are not
likely because of the intermittent nature
of applications by homeowners.
5. Aggregate cancer risk for U.S.
population. As noted in Unit III.A., EPA
has determined that fluopicolide is ‘‘not
likely to be carcinogenic to humans.’’ As
discussed in Unit III.C., EPA assessed
the BAM cancer risk using an RfD
approach. Relying on the BAM chronic
risk assessment, EPA determines that
BAM does not pose a cancer risk.
Therefore, fluopicolide is not expected
to pose a cancer risk.
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 fluopicolide
residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology
(Liquid Chromatography/Tandum Mass
Spectrometry (LC/MS/MS) method) 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
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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 MRLs
for fluopicolide on corn, field, forage;
corn, field, grain or corn, field, stover.
C. Revisions to Petitioned-For
Tolerances
The established tolerance levels for
field corn forage and field corn stover
differ from the petition. The petitioner’s
calculations were based on the sum of
fluopicolide and BAM. Since the
tolerance expression includes
monitoring of residues of fluopicolide
only for rotational crops for both food
and feed commodities, it is not
appropriate to consider residues of BAM
in tolerance calculations. Therefore,
EPA is establishing tolerances based on
field trial data for fluopicolide only and
using the Organization of Economic
Cooperation and Development (OECD)
calculation procedure.
V. Conclusion
Therefore, tolerances are established
for residues of fluopicolide, 2,6dichloro-N-[3-chloro-5(trifluoromethyl)-2-pyridylmethyl]benzamide, in or on corn, field, forage
at 0.08 ppm; corn, field, grain at 0.01
ppm; and corn, field, stover at 0.20
ppm.
VI. Statutory and Executive Order
Reviews
This final rule 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 final rule
has been exempted from review under
Executive Order 12866, this final rule 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 final rule 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
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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 final rule 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 final rule. In addition, this final
rule does not impose any enforceable
duty or contain any unfunded mandate
as described under Title II of the
Unfunded Mandates Reform Act of 1995
(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 of 1995
(NTTAA) (15 U.S.C. 272 note).
VII. Congressional Review Act
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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
15:46 Mar 04, 2014
Jkt 232001
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 § 180.627, in paragraph (d), add
alphabetically the following
commodities to the table to read as
follows:
■
§ 180.627 Fluopicolide; tolerances for
residues.
*
*
*
(d) * * *
*
*
Parts per
million
Commodity
Corn, field, forage .................
Corn, field, grain ...................
Corn, field, stover .................
*
*
*
0.08
0.01
0.20
*
*
[FR Doc. 2014–04832 Filed 3–4–14; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2012–0949; FRL–9906–47]
Triflumizole; Pesticide Tolerances
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This regulation establishes
tolerances for residues of triflumizole in
or on multiple commodities which are
identified and discussed later in this
document. Interregional Research
Project Number 4 (IR–4) requested these
tolerances under the Federal Food,
Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective
March 5, 2014. Objections and requests
for hearings must be received on or
before May 5, 2014, and must be filed
in accordance with the instructions
provided in 40 CFR part 178 (see also
Unit I.C. of the SUPPLEMENTARY
INFORMATION).
SUMMARY:
The docket for this action,
identified by docket identification (ID)
number EPA–HQ–OPP–2012–0949, is
available at https://www.regulations.gov
or at the Office of Pesticide Programs
Regulatory Public Docket (OPP Docket)
ADDRESSES:
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
VerDate Mar<15>2010
Dated: February 26, 2014.
Lois Rossi,
Director, Registration Division, Office of
Pesticide Programs.
PO 00000
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12401
in the Environmental Protection Agency
Docket Center (EPA/DC), EPA West
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: Lois
Rossi, Registration Division (7505P),
Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave. NW., Washington,
DC 20460–0001; 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/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–2012–0949 in the subject line on
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Agencies
[Federal Register Volume 79, Number 43 (Wednesday, March 5, 2014)]
[Rules and Regulations]
[Pages 12396-12401]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2014-04832]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2012-0941; FRL-9906-19]
Fluopicolide; Pesticide Tolerances
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes tolerances for indirect or
inadvertent residues of fluopicolide in or on corn, field, forage;
corn, field, grain; corn, field, stover. Valent U.S.A. Corporation
requested these tolerances under the Federal Food, Drug, and Cosmetic
Act (FFDCA).
DATES: This regulation is effective March 5, 2014. Objections and
requests for hearings must be received on or before May 5, 2014, 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-2012-0941, 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), EPA West 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: Lois Rossi, Registration Division
(7505P), Office of Pesticide Programs, Environmental Protection Agency,
1200 Pennsylvania Ave. NW., Washington, DC 20460-0001; 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-2012-0941 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
May 5, 2014. 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
[[Page 12397]]
objection or hearing request, identified by docket ID number EPA-HQ-
OPP-2012-0941, 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.htm. 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 January 16, 2013 (78 FR 3377) (FRL-9375-
4), 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
(2F8099) by Valent U.S.A. Corporation, 1600 Riviera Avenue, Suite 200;
Walnut Creek, CA 94596. The petition requested that 40 CFR 180.627 be
amended by establishing tolerances for indirect or inadvertent residues
of the fungicide fluopicolide, 2,6-dichloro-N-[3-chloro-5-
(trifluoromethyl)-2-pyridylmethyl]-benzamide, and its metabolite, 2,6-
dichlorobenzamide, in or on corn, field, forage at 0.09 parts per
million (ppm); corn, field, grain at 0.01 ppm; and corn, field, stover
at 0.3 ppm. These tolerances are being requested for fluopicolide
residues that are likely to be found in or on corn when corn is planted
as a rotational crop into a field that has previously been treated with
fluopicolide, not for residues that result from direct application of
fluopicolide to corn. That document referenced a summary of the
petition prepared by Valent U.S.A. Corporation, the registrant, which
EPA failed to make available through https://www.regulations.gov.
Subsequently, EPA posted the summary to the docket via https://www.regulations.gov and republished notice of the availability of
Valent's summary of its petition in the docket on September 12, 2013
(78 FR 56185) (FRL-9399-7). There were no comments received in response
to the notice of filing.
Based upon review of the data supporting the petition, EPA has
revised the proposed tolerances for corn, field, forage from 0.09 ppm
to 0.08 ppm; and for corn, field, stover from 0.3 ppm to 0.20 ppm. The
reasons for these changes are explained in Unit IV.D.
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 fluopicolide including exposure
resulting from the tolerances established by this action. EPA's
assessment of exposures and risks associated with fluopicolide follows.
A. Toxicological Profile
EPA has evaluated the available toxicity data and considered its
validity, completeness, and reliability as well as the relationship of
the results of the studies to human risk. EPA has also considered
available information concerning the variability of the sensitivities
of major identifiable subgroups of consumers, including infants and
children.
The toxicological database indicates that fluopicolide has
relatively low acute toxicity. Fluopicolide is not a dermal sensitizer,
primary eye irritant, or primary skin irritant. The subchronic and
chronic toxicity studies showed that the primary effects of
fluopicolide are in the liver. Kidney and thyroid toxicity were
observed in rats only. Fluopicolide is not neurotoxic, carcinogenic,
nor mutagenic. Developmental toxicity in the rabbit occurred only at
doses that caused severe maternal toxicity (including death). In the
rat, developmental effects were seen only at high dose levels (700
milligrams/kilogram/day (mg/kg/day)) in the presence of maternal
toxicity. Similarly, offspring effects (decreased body weight and body
weight gain) occurred only at levels causing significant toxicity in
parents of the multi-generation reproductive toxicity study. There is
no evidence of increased quantitative susceptibility of rat or rabbit
fetuses to in utero or postnatal exposure to fluopicolide. No toxic
effects were observed in studies in which fluopicolide was administered
by the dermal routes of exposure. The toxicological profile for
fluopicolide suggests that increased durations of exposure do not
significantly increase the severity of observed effects. The rabbit
developmental and rat chronic/cancer studies were therefore considered
as potential studies for deriving risk assessment endpoints for all
durations of exposure. Fluopicolide is classified as ``not likely to be
carcinogenic to humans'', thus no quantification of cancer risks is
required.
Fluopicolide shares a metabolite, 2,6- dichlorobenzamide (BAM),
with another active ingredient, dichlobenil. Residues of BAM are
considered to be of regulatory concern, and separate toxicity data and
endpoints for risk assessment have been selected for BAM. Since the
toxicity profile for BAM has not changed since the last assessment EPA
conducted for BAM, an analysis of the toxicology profile of BAM can be
found in ``Fluopicolide and its Metabolite, 2,6-Dichlorobenzamide
(BAM). Amended Human Health Risk Assessment to Support New Section 3
Uses on Brassica Leafy Greens Subgroup 5B, Potatoes, Sugar Beets,
Carrots and to Allow Rotation to Wheat,'' dated November 21, 2007
(``2007 BAM Risk Assessment'') in docket ID number EPA-HQ-OPP-2006-
0481).
Specific information on the studies received and the nature of the
adverse effects caused by fluopicolide 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 ``Fluopicolide. Human Health Risk
Assessment of the new section 3 tolerance on Rotational Corn'' in
docket ID number EPA-HQ-OPP-2012-0941.
B. Toxicological Points of Departure/Levels of Concern
Once a pesticide's toxicological profile is determined, EPA
identifies
[[Page 12398]]
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 fluopicolide and BAM
used for human risk assessment is discussed in Unit III.B. of the final
rule published in the Federal Register of April 20, 2011 (76 FR 22045)
(FRL-8859-9).
C. Exposure Assessment
1. Dietary exposure from food and feed uses. In evaluating dietary
exposure to fluopicolide, EPA considered exposure under the petitioned-
for tolerances as well as all existing fluopicolide tolerances in 40
CFR 180.627. EPA did not consider additional exposures from BAM since
the proposed change in use pattern does not add significantly to the
BAM dietary exposure, and residues of BAM due to fluopicolide
applications are significantly lower than those from dichlobenil
applications. EPA is relying on conclusions from the 2007 BAM Risk
Assessment. These conclusions remain unchanged and a revised
quantitative BAM risk assessment was not conducted to support the
proposed tolerances. EPA assessed dietary exposures from fluopicolide
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. No such effects were
identified in the toxicological studies for fluopicolide; therefore, a
quantitative acute dietary exposure assessment is unnecessary.
Acute effects were identified for BAM, and a conservative acute
dietary exposure assessment for BAM was conducted. Maximum residues of
BAM from fluopicolide field trials on tuberous and corm vegetables,
leafy vegetables (except brassica), fruiting vegetables, cucurbit
vegetables, grapes (domestic and imported), (except potato), and from
dichlobenil field trials on food commodities with established/pending
tolerances (40 CFR 180.231) were included in the assessments. The
assessments used 100 percent crop treated (PCT) except for apples,
blueberries, cherries, cranberries, peaches, pears, and raspberries.
ii. Chronic exposure. A chronic aggregate dietary (food and
drinking water) exposure and risk assessment was conducted for
fluopicolide using the Dietary Exposure Evaluation Model software with
the Food Commodity Intake Database (DEEM-FCID) Version 3.16. This
software uses 2003-2008 food consumption data from the U.S. Department
of Agriculture's (USDA's) National Health and Nutrition Examination
Survey, What We Eat in America, (NHANES/WWEIA). As to residue levels in
food, EPA assumed 100 PCT and tolerance-level residues.
A conservative chronic dietary exposure assessment for BAM was
conducted as described in Unit III.C.1.i. for the acute assessment.
iii. Cancer. Based on the data summarized in Unit III.A., EPA has
concluded that fluopicolide does not pose a cancer risk to humans.
Therefore, a quantitative dietary exposure assessment for the purpose
of assessing cancer risk is unnecessary.
The carcinogenic potential of BAM has been evaluated in only one
species, the rat. That study showed an increased incidence of
hepatocellular adenomas in high-dose females that was marginally
statistically significant. In its previous BAM assessment, EPA assumed
that BAM's potential for carcinogenicity is similar to the parent
having the greatest carcinogenic potential, specifically, dichlobenil,
which has been classified as ``Group C, possible human carcinogen'' and
for which EPA used a reference dose (RfD) approach for quantification
of human cancer risk. Accordingly, EPA has assessed BAM's cancer risk
by using an RfD approach. For this assessment, EPA relied on BAM
chronic exposure assessment as described in Unit III.C.1.ii.
iv. Anticipated residue and PCT information. EPA did not use
anticipated residue and/or PCT information in the dietary assessment
for fluopicolide. Tolerance level residues and/or 100 PCT were assumed
for all food commodities.
EPA used anticipated residues and PCT information for the acute and
chronic dietary risk assessments for BAM. For further analysis and
EPA's findings under section 408(b)(2)(E) of the FFDCA, see Unit
III.C.1.iv. of the preamble to the fluopicolide final rule published in
the Federal Register of April 20, 2011 (76 FR 22045, 22050) (FRL-8859-
9).
2. Dietary exposure from drinking water. A new drinking water
assessment was not necessary for the establishment of tolerances
resulting from inadvertent residues of fluopicolide on rotational corn.
Previously, the Agency used screening level water exposure models in
the dietary exposure analysis and risk assessment for fluopicolide in
drinking water. These simulation models take into account data on the
physical, chemical, and fate/transport characteristics of fluopicolide.
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 surface water concentrations estimated using the
Pesticide Root Zone Model/Exposure Analysis Modeling System (PRZM/
EXAMS); and Screening Concentrations in Ground Water (SCI-GROW) models,
the estimated environmental concentrations (EECs) of fluopicolide for
chronic exposures (non-cancer) assessments are estimated to be 24.14
ppb for surface water and 0.5 ppb for ground water. Acute and cancer
dietary risks were not quantified, as previously discussed.
Modeled estimates of drinking water concentrations were directly
entered into the dietary exposure model. For the chronic dietary risk
assessment, the water concentration of value 24.14 ppb was used to
assess the contribution to drinking water.
Considering residues of BAM in drinking water from uses of
dichlobenil and fluopicolide, the uses on dichlobenil will result in
the highest residues in drinking water. Therefore, the results from
dichlobenil (from the use of nutsedge at 10 lb dichlobenil active
ingredient/Acre (ai)/(A)) were used in the 2007 BAM Risk Assessment,
i.e., 56.2 ppb was used as the value of BAM residues in drinking water
in the dietary assessment for both the acute and chronic assessment.
[[Page 12399]]
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). Fluopicolide is
currently registered for the following uses that could result in short-
term residential exposures: Residential turf grass, recreational sites
and ornamental plants. EPA assessed residential exposure using the
following assumptions: Residential handlers may receive short-term
dermal and inhalation exposure to fluopicolide when mixing, loading,
and applying the formulations. Residential post-application exposure
via the dermal route is likely for adults and children entering treated
lawns or treated gardens and during mowing and golfing activities.
Children may also experience exposure via incidental non-dietary
ingestion (i.e., hand-to-mouth, object-to-mouth (turfgrass), and soil
ingestion) during post-application activities on treated turf. Further
information regarding EPA standard assumptions and generic inputs for
residential exposures may be found at https://www.epa.gov/pesticides/trac/science/trac6a05.pdf.
BAM is a metabolite/degradate which forms slowly; therefore, the
scenarios were assessed in the previous assessment assuming that BAM is
present at levels which reflect high end measurements observed in the
longer-term metabolism studies in order to provide a protective
assessment. The short-/intermediate-term dermal MOEs for adults and
children are 10,000 and 6,000, respectively, and the combined
incidental oral MOE for toddlers is 62,000. These MOEs are greater than
the LOC of 100 for dermal exposure and 1,000 for incidental oral
exposure, on the day of application, and therefore, are not of concern.
See 2007 BAM Risk Assessment.
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.''
Unlike other pesticides for which EPA has followed a cumulative
risk approach based on a common mechanism of toxicity, EPA has not made
a common mechanism of toxicity finding as to fluopicolide and any other
substances. Although fluopicolide shares a common metabolite, BAM, with
dichlobenil, quantification of risks for residues of BAM resulting from
fluopicolide was not done as part of this assessment because they
contribute an insignificant amount to the total BAM exposure.
Furthermore, aggregate risks to BAM are not of concern. For the
purposes of this tolerance action, EPA has not assumed that
fluopicolide has 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 the policy statements released by EPA's
Office of Pesticide Programs concerning common mechanism determinations
and procedures for cumulating effects from substances found to have a
common mechanism on 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. For fluopicolide, there is
no evidence of quantitative susceptibility following in utero and/or
postnatal exposure in the rabbit and rat developmental toxicity studies
or in the 2-generation rat reproduction study. Qualitative
susceptibility was observed in the rat developmental toxicity study.
Fetal effects (reduced growth and skeletal defects) and late-term
abortions were observed at doses at which only decreased body weight
gain were observed in maternal animals. There is low concern for this
qualitative susceptibility, because the fetal effects and late-term
abortions have been well characterized and only occurred at a dose
level near the limit dose. Protection of the maternal effects also
protects for any effects that may occur during development. There are
no residual uncertainties concerning prenatal and postnatal toxicity
for fluopicolide.
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 fluopicolide is complete.
ii. There is no indication that fluopicolide is a neurotoxic
chemical and there is no need for a developmental neurotoxicity study
or additional UFs to account for neurotoxicity.
iii. As discussed in Unit III.D.2. in this document, the degree of
concern for the prenatal and/or postnatal toxicity is low; thus, there
is no need for the 10X FQPA safety factor to account for potential
prenatal or post-natal toxicity.
iv. There are no residual uncertainties identified in the exposure
databases. The chronic dietary food exposure assessments were performed
based on 100 PCT and tolerance-level residues. EPA made conservative
(protective) assumptions in the ground and surface water modeling used
to assess exposure to fluopicolide in drinking water. Although EPA has
required additional data on transferable residues from treated turf for
fluopicolide, EPA is confident that it has not underestimated turf
exposure due to the conservativeness of the default turf transfer value
and conservative assumptions in the short-term turf assessment
procedures (e.g., assuming residues do not degrade over the thirty day
assessment period and assuming high-end activities on turf for every
day of the assessment period).
For reasons explained in III.D. of the preamble to the fluopicolide
final rule published in the Federal Register of April 20, 2011 (76 FR
22045) (FRL-8859-9), EPA reduced the FQPA safety factor for BAM to 1X
for inhalation and dermal exposure scenarios and retained the 10X FQPA
safety factor for all other BAM exposure scenarios. EPA is relying on
the findings in the preamble of the April 20, 2011 final rule and the
2007 BAM Risk Assessment for the BAM FQPA safety factor determinations
for this action.
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-,
[[Page 12400]]
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. An acute aggregate risk assessment takes into
account acute exposure estimates from dietary consumption of food and
drinking water. No adverse effect resulting from a single oral exposure
was identified and no acute dietary endpoint was selected. Therefore,
fluopicolide is not expected to pose an acute risk.
The acute dietary exposure estimates for BAM at the 99.9th
percentile of the exposure distribution are 11% of the aPAD for the
general U.S. population and 28% aPAD for all infants 1 year old, the
most highly exposed group.
2. Chronic risk. Using the exposure assumptions described in this
unit for chronic exposure, EPA has concluded that chronic exposure to
fluopicolide from food and water will utilize 12% of the cPAD for
children 1-2 years of age, 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
fluopicolide is not expected.
The chronic dietary exposure estimates for BAM are 29% of the
chronic cPAD for the general U.S. population and 93% cPAD for all
infants (< 1 year old), the most highly exposed group, which is not of
concern to the Agency.
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). Fluopicolide
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 fluopicolide.
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 110 for adult
males and females and 183 for children 6-11 years of age. Because EPA's
level of concern for fluopicolide is a MOE of 100 or below, these MOEs
are not of concern.
Short-term exposures for fluopicolide's metabolite BAM, may occur
as a result of activities on treated turf. Incidental oral exposures
related to turf activities have been combined with chronic dietary
exposure estimates to assess short-term aggregate exposure for BAM.
Since aggregate MOEs for BAM are greater than the LOC, they represent
risk estimates that are below the Agency's level of concern.
4. Intermediate-term risk. Intermediate-term aggregate exposure
takes into account intermediate-term residential exposure plus chronic
exposure to food and water (considered to be a background exposure
level). Intermediate-term exposures are not likely because of the
intermittent nature of applications by homeowners.
5. Aggregate cancer risk for U.S. population. As noted in Unit
III.A., EPA has determined that fluopicolide is ``not likely to be
carcinogenic to humans.'' As discussed in Unit III.C., EPA assessed the
BAM cancer risk using an RfD approach. Relying on the BAM chronic risk
assessment, EPA determines that BAM does not pose a cancer risk.
Therefore, fluopicolide is not expected to pose a cancer risk.
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 fluopicolide residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology (Liquid Chromatography/Tandum Mass
Spectrometry (LC/MS/MS) method) 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 MRLs for fluopicolide on corn, field,
forage; corn, field, grain or corn, field, stover.
C. Revisions to Petitioned-For Tolerances
The established tolerance levels for field corn forage and field
corn stover differ from the petition. The petitioner's calculations
were based on the sum of fluopicolide and BAM. Since the tolerance
expression includes monitoring of residues of fluopicolide only for
rotational crops for both food and feed commodities, it is not
appropriate to consider residues of BAM in tolerance calculations.
Therefore, EPA is establishing tolerances based on field trial data for
fluopicolide only and using the Organization of Economic Cooperation
and Development (OECD) calculation procedure.
V. Conclusion
Therefore, tolerances are established for residues of fluopicolide,
2,6-dichloro-N-[3-chloro-5-(trifluoromethyl)-2-pyridylmethyl]-
benzamide, in or on corn, field, forage at 0.08 ppm; corn, field, grain
at 0.01 ppm; and corn, field, stover at 0.20 ppm.
VI. Statutory and Executive Order Reviews
This final rule 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 final rule has
been exempted from review under Executive Order 12866, this final rule
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 final rule 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
[[Page 12401]]
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 final rule 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 final rule. In addition,
this final rule does not impose any enforceable duty or contain any
unfunded mandate as described under Title II of the Unfunded Mandates
Reform Act of 1995 (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 of 1995 (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 26, 2014.
Lois Rossi,
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. 180.627, in paragraph (d), add alphabetically the following
commodities to the table to read as follows:
Sec. 180.627 Fluopicolide; tolerances for residues.
* * * * *
(d) * * *
------------------------------------------------------------------------
Parts per
Commodity million
------------------------------------------------------------------------
Corn, field, forage..................................... 0.08
Corn, field, grain...................................... 0.01
Corn, field, stover..................................... 0.20
* * * * *
------------------------------------------------------------------------
[FR Doc. 2014-04832 Filed 3-4-14; 8:45 am]
BILLING CODE 6560-50-P