Trifloxystrobin; Pesticide Tolerance, 52-57 [E7-25396]
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52
Federal Register / Vol. 73, No. 1 / Wednesday, January 2, 2008 / Rules and Regulations
IV. Do Any of the Statutory and
Executive Order Reviews Apply to this
Action?
EPA included the necessary statutory
and Executive Order reviews in the
December 7, 2007 final rule.
Representatives, and the Comptroller
General of the United States prior to
publication of this final rule in the
Federal Register. This final rule is not
a ‘‘major rule’’ as defined by 5 U.S.C.
804(2).
V. Congressional Review Act
The Congressional Review Act, 5
U.S.C. 801 et seq., generally provides
that before a rule may take effect, the
Agency promulgating the rule must
submit a rule report to each House of
the Congress and to the Comptroller
General of the United States. EPA will
submit a report containing this rule and
other required information to the U.S.
Senate, the U.S. House of
List of Subjects in 40 CFR Part 180
Environmental protection,
Administrative practice and procedure,
Pesticides and pest.
Dated: December 13, 2007.
James Jones,
Acting Assistant Administrator for
Prevention, Pesticides, and Toxic Substances.
Therefore, 40 CFR part 180 is
amended as follows:
I
PART 180—[AMENDED]
1. The authority citation for part 180
continues to read as follows:
I
Authority: 21 U.S.C. 321(q), 346a, and 371.
2. Section 180.41 is amended by
revising the entry for ‘‘Gooseberry (ribes
spp)’’ in table 1 to paragraph (c)(15)(ii),
and by revising the Crop Group 21 table
in paragraph (c)(22)(ii) to read as
follows:
I
§ 180.41
*
Crop group tables.
*
*
(c) * * *
(15) * * *
(ii) * * *
*
*
TABLE 1.—CROP GROUP 13-07: BERRY AND SMALL FRUIT CROP GROUP
Commodities
Related crop subgroups
*
*
*
*
*
*
*
Gooseberry (Ribes spp.) .................................................................................................................................
*
*
*
*
*
*
*
*
*
*
(22) * * *
(ii) * * *
*
*
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
CROP GROUP 21.—EDIBLE FUNGI
GROUP—COMMODITIES
[EPA–HQ–OPP–2006–0732; FRL–8342–6]
Blewitt (Lepista nuda)
Bunashimeji (Hypsizygus marrmoreus)
Chinese mushroom (Volvariella volvacea)
(Bull.) Singer
Enoki (Flammulina velutipes) (Curt.) Singer
Hime-Matsutake (Agaricus blazei) Murill
Hirmeola (Auricularia auricular)
Maitake (Grifola frondosa)
Morel (Morchella spp.)
Nameko (Pholiota nameko)
Net Bearing (Dictyophora)
Oyster mushroom (Pleurotus spp.)
Pom Pom (Hericium erinaceus)
Reishi mushroom (Ganoderma lucidum
(Leyss. Fr.) Karst.)
Rodman’s agaricus (Agaricus bitorquis)
(Quel.) Saccardo
Shiitake mushroom (Lentinula edodes (Berk.)
Pegl.)
Shimeji (Tricholoma conglobatum)
Stropharia (Stropharia spp.)
Truffle (Tuber spp.)
White button mushroom (Agaricus bisporous
(Lange) Imbach)
White Jelly Fungi (Tremella fuciformis)
[FR Doc. E7–25280 Filed 12–31–07; 8:45 am]
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BILLING CODE 6560–50–S
Trifloxystrobin; Pesticide Tolerance
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
SUMMARY: This regulation establishes
tolerances for the combined residues of
trifloxystrobin, and its free form acid
metabolite in or on asparagus; papaya;
sapote, black; canistel; sapote, mamey;
mango; sapodilla; star apple; vegetable,
root, except sugar beet, subgroup 1B;
radish, tops; fruit, citrus, group 10;
citrus, oil; citrus, dried pulp; and
strawberry. Interregional Research
Project Number 4 (IR–4), and Bayer
Crop Science requested these tolerances
under the Federal Food, Drug, and
Cosmetic Act (FFDCA).
DATES: This regulation is effective
January 2, 2008. Objections and requests
for hearings must be received on or
before March 3, 2008, and must be filed
in accordance with the instructions
provided in 40 CFR part 178 (see also
Unit I.C. of the SUPPLEMENTARY
INFORMATION).
EPA has established a
docket for this action under docket
identification (ID) number EPA–HQ–
OPP–2006–0732. To access the
electronic docket, go to https://
www.regulations.gov, select ‘‘Advanced
ADDRESSES:
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13-07B, 13-07D, 13-07E, 13-07F
Search,’’ then ‘‘Docket Search.’’ Insert
the docket ID number where indicated
and select the ‘‘Submit’’ button. Follow
the instructions on the regulations.gov
website to view the docket index or
access available documents. All
documents in the docket are listed in
the docket index available in
regulations.gov. Although listed in the
index, some information is not publicly
available, e.g., Confidential Business
Information (CBI) or other information
whose disclosure is restricted by statute.
Certain other material, such as
copyrighted material, is not placed on
the Internet and will be publicly
available only in hard copy form.
Publicly available docket materials are
available in the electronic docket at
https://www.regulations.gov, or, if only
available in hard copy, at the OPP
Regulatory Public Docket in Rm. S–
4400, One Potomac Yard (South Bldg.),
2777 S. Crystal Dr., Arlington, VA. The
Docket Facility is open from 8:30 a.m.
to 4 p.m., Monday through Friday,
excluding legal holidays. The Docket
Facility telephone number is (703) 305–
5805.
FOR FURTHER INFORMATION CONTACT:
Shaja R. Brothers, Registration Division
(7505P), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001; telephone number:
(703) 308–3194; e-mail address:
brothers.shaja@epa.gov.
SUPPLEMENTARY INFORMATION:
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Federal Register / Vol. 73, No. 1 / Wednesday, January 2, 2008 / Rules and Regulations
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. Potentially
affected entities may include, but are
not limited to those engaged in the
following activities:
• Crop production (NAICS code 111),
e.g., agricultural workers; greenhouse,
nursery, and floriculture workers;
farmers.
• Animal production (NAICS code
112), e.g., cattle ranchers and farmers,
dairy cattle farmers, livestock farmers.
• Food manufacturing (NAICS code
311), e.g., agricultural workers; farmers;
greenhouse, nursery, and floriculture
workers; ranchers; pesticide applicators.
• Pesticide manufacturing (NAICS
code 32532), e.g., agricultural workers;
commercial applicators; farmers;
greenhouse, nursery, and floriculture
workers; residential users.
This listing is not intended to be
exhaustive, but rather to provide a guide
for readers regarding entities likely to be
affected by this action. Other types of
entities not listed in this unit could also
be affected. The North American
Industrial Classification System
(NAICS) codes have been provided to
assist you and others in determining
whether this action might apply to
certain entities. If you have any
questions regarding the applicability of
this action to a particular entity, consult
the person listed under FOR FURTHER
INFORMATION CONTACT.
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B. How Can I Access Electronic Copies
of this Document?
In addition to accessing an electronic
copy of this Federal Register document
through the electronic docket at https://
www.regulations.gov, you may access
this Federal Register document
electronically through the EPA Internet
under the ‘‘Federal Register’’ listings at
https://www.epa.gov/fedrgstr. You may
also access a frequently updated
electronic version of EPA’s tolerance
regulations at 40 CFR part 180 through
the Government Printing Office’s pilot
e-CFR site at https://www.gpoaccess.gov/
ecfr.
C. Can I File an Objection or Hearing
Request?
Under section 408(g) of FFDCA, 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
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proper receipt by EPA, you must
identify docket ID number EPA–HQ–
OPP–2006–0732 in the subject line on
the first page of your submission. All
requests must be in writing, and must be
mailed or delivered to the Hearing Clerk
as required by 40 CFR part 178 on or
before March 3, 2008.
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 that does not
contain any CBI for inclusion in the
public docket that is described in
ADDRESSES. Information not marked
confidential pursuant to 40 CFR part 2
may be disclosed publicly by EPA
without prior notice. Submit this copy,
identified by docket ID number EPA–
HQ–OPP–2006–0732, by one of the
following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the on-line
instructions for submitting comments.
• Mail: Office of Pesticide Programs
(OPP) Regulatory Public Docket (7502P),
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001.
• Delivery: OPP Regulatory Public
Docket (7502P), Environmental
Protection Agency, Rm. S–4400, One
Potomac Yard (South Bldg.), 2777 S.
Crystal Dr., Arlington, VA. Deliveries
are only accepted during the Docket’s
normal hours of operation (8:30 a.m. to
4 p.m., Monday through Friday,
excluding legal holidays). Special
arrangements should be made for
deliveries of boxed information. The
Docket Facility telephone number is
(703) 305–5805.
II. Petition for Tolerance
In the Federal Registers of September
13, 2006 (71 FR 54058) (FRL–8091–2),
and August 22, 2007 (72 FR 47010)
(FRL–8142–5), EPA issued notices
pursuant to section 408(d)(3) of FFDCA,
21 U.S.C. 346a(d)(3), announcing the
filing of pesticide petitions (PPs)
6E7088, 6F7123, 7F7171 by IR–4, 500
College Road East, Suite 201 W,
Princeton, NJ 08540; and Bayer
CropScience, P.O. Box 12014, 2 T.W.
Alexander Drive, Research Triangle
Park, NC 27709. These petitions
requested that 40 CFR 180.555 be
amended by establishing tolerances for
combined 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 CGA-321113 (( E,E )methoxyimino-[2-[1-(3-trifluoromethylphenyl)-ethylideneaminooxymethyl]phenyl]acetic acid, in or on asparagus at
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0.07 parts per million (ppm); papaya at
0.7 ppm; sapote, black at 0.7ppm;
canistel at 0.7 ppm; sapote, mamey at
0.7 ppm; mango at 0.7 ppm; sapodilla at
0.7 ppm; star apple at 0.7 ppm;
vegetable, root, except sugar beet,
subgroup 1B at 0.1 ppm; and radish,
tops at 10 ppm (6E7088); fruit, citrus,
group 10 at 0.4 ppm; citrus, oil at 36
ppm; citrus, dried pulp at 1.0 ppm
(6F7123); and strawberry at 1.1 ppm
(6F7171). These notices referenced a
summary of the petitions prepared by
Bayer CropScience, the registrant,
which is available to the public in the
docket, https://www.regulations.gov. One
comment was received from a private
citizen on the notice of filing concerning
the tolerances for strawberry and citrus.
EPA’s response to these comments is
discussed in Unit IV.C.
Based upon review of the data
supporting the petition, EPA has
increased the tolerances on fruit, citrus,
group 10 from 0.4 to 0.6 ppm, and
citrus, oil from 36 to 38 ppm. The
reason for these changes is 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....’’ These provisions
were added to FFDCA by the Food
Quality Protection Act (FQPA) of 1996.
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 the petitioned-for
tolerance for combined residues of
trifloxystrobin on asparagus at 0.07
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Federal Register / Vol. 73, No. 1 / Wednesday, January 2, 2008 / Rules and Regulations
ppm; papaya at 0.7 ppm; sapote, black
at 0.7 ppm; canistel at 0.7 ppm; sapote,
mamey at 0.7 ppm; mango at 0.7 ppm;
sapodilla at 0.7 ppm; star apple at 0.7
ppm; vegetable, root, except sugar beet,
subgroup 1B at 0.1 ppm; and radish,
tops at 10 ppm; fruit, citrus, group 10
at 0.6 ppm; citrus, oil at 38 ppm; citrus,
dried pulp at 1.0 ppm; and strawberry
at 1.1 ppm. EPA’s assessment of
exposures and risks associated with
establishing these tolerances follow.
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A. Toxicological Profile
EPA has evaluated the available
toxicity data and considered its validity,
completeness, and reliability as well as
the relationship of the results of the
studies to human risk. EPA has also
considered available information
concerning the variability of the
sensitivities of major identifiable
subgroups of consumers, including
infants and children. Specific
information on the studies received and
the nature of the adverse effects caused
by trifloxystrobin as well as the noobserved-adverse-effect-level (NOAEL)
and the lowest-observed-adverse-effectlevel (LOAEL) from the toxicity studies
can be found in the Trifloxystrobin:
Human Health Risk Assessment for
Section 3 Registration for the Proposed
Uses on Grasses Grown for Seed on
pages 41 and 42 at https://
www.regulations.gov. The referenced
document is available in docket EPA–
HQ–OPP–2007–0539.
B. Toxicological Endpoints
For hazards that have a threshold
below which there is no appreciable
risk, the toxicological level of concern
(LOC) is derived from the highest dose
at which no adverse effects are observed
(the NOAEL) in the toxicology study
identified as appropriate for use in risk
assessment. However, if a NOAEL
cannot be determined, the lowest dose
at which adverse effects of concern are
identified (the LOAEL) is sometimes
used for risk assessment. Uncertainty/
safety factors (UFs) are used in
conjunction with the LOC to take into
account uncertainties inherent in the
extrapolation from laboratory animal
data to humans and in the variations in
sensitivity among members of the
human population as well as other
unknowns. Safety is assessed for acute
and chronic risks by comparing
aggregate exposure to the pesticide to
the acute population adjusted dose
(aPAD) and chronic population adjusted
dose (cPAD). The aPAD and cPAD are
calculated by dividing the LOC by all
applicable UFs. Short-term,
intermediate-term, and long-term risks
are evaluated by comparing aggregate
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exposure to the LOC to ensure that the
margin of exposure (MOE) called for by
the product of all applicable UFs is not
exceeded.
For non-threshold risks, the Agency
assumes that any amount of exposure
will lead to some degree of risk and
estimates risk in terms of the probability
of occurrence of additional adverse
cases. Generally, cancer risks are
considered non-threshold. 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/fedrgstr/EPA-PEST/1997/
November/Day–26/p30948.htm.
A summary of the toxicological
endpoints for trifloxystrobin used for
human risk assessment can be found at
https://www.regulations.gov in the
Trifloxystrobin: Human Health Risk
Assessment for Section 3 Uses on
Asparagus; Vegetable, Root Except
Sugar Beet, Subgroup 1B; Radish (Tops);
and Papaya, Black Sapote, Canistel,
Mamey Sapote, Mango, Sapodilla, and
Star Apple, Citrus Fruits, Crop Group
10; Citrus, Oil; and Citrus, Dried Pulp,
and Strawberry on pages 16 and 17 for
docket ID number EPA–HQ–OPP–2006–
0732.
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. In estimating acute dietary
exposure, EPA used food consumption
information from the U.S. Department of
Agriculture (USDA) 1994–1996 and
1998 Nationwide Continuing Surveys of
Food Intake by Individuals (CSFII). As
to residue levels in food, EPA assumed
tolerance level residues and 100 percent
crop treated (PCT) was performed for
trifloxystrobin.
ii. Chronic exposure. In conducting
the chronic dietary exposure
assessment, EPA used the food
consumption data from the USDA 1994–
1996, and 1998 CSFII. As to residue
levels in food, EPA assumed tolerance
level residues and 100 PCT was
performed for trifloxystrobin. PCT and/
or anticipated residues were not used.
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iii. Cancer. Trifloxystrobin is
classified as a ‘‘not likely carcinogen’’;
therefore, quantification of human
cancer risk is not required and a cancer
dietary exposure assessment was not
performed.
2. Dietary exposure from drinking
water. The Agency lacks sufficient
monitoring data to complete a
comprehensive dietary exposure
analysis and risk assessment for
trifloxystrobin in drinking water.
Because the Agency does not have
comprehensive monitoring data,
drinking water concentration estimates
are made by reliance on simulation or
modeling taking into account data on
the environmental fate characteristics of
trifloxystrobin. 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.
Trifloxystrobin is immobile in soil. It
degrades and transforms rapidly in soil
and aquatic environments. The primary
degradate is CGA–321113. Estimated
drinking water concentrations (EDWCs)
were calculated for total trifloxystrobin
residues (parent trifloxystrobin plus the
major degradate CGA–321113) using the
Agency’s First Index Reservior
Screening Tool (FIRST) model for
surface water and the Screening
Concentration in Ground Water (SCIGROW) model for ground water. The
interim method for drinking water
estimates for pesticides used in rice
paddies was also used to generate
EDWCs. The use site with the highest
application rate is turf, with a maximum
label rate of 1.078 pounds active
ingredient/acre/year (lb ai/A/yr) (three
applications at 0.359 lb ai/A/yr).
Drinking water estimates were also
provided for rice paddies that may be
treated with trifloxystrobin.
The Agency determined that the
highest EDWC for both acute and
chronic analysis should use 140 parts
per billion (ppb) based on the model for
the use on rice. Because this model does
not account for degradation of the
chemical or dilution with
uncontaminated water outside of the
rice paddy, the calculated EDWCs (140
ppb) are expected to exceed
concentrations likely to be found in
drinking water derived from surface
water sources.
Based on the FIRST, and SCI-GROW
models, the estimated environmental
concentrations (EECs) of trifloxystrobin
for acute and chronic exposures for
surface water are estimated at 140 ppb.
Acute and chronic exposure for ground
water is estimated at 3.4 ppb.
Modeled estimates of drinking water
concentrations were directly entered
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into the dietary exposure model. For the
acute and chronic dietary risk
assessments, the water concentration
values of 140 ppb (acute and chronic)
were used to access the contribution to
drinking water.
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 residential non-dietary
sites: CompassTM is registered for
residential use on turf grass and
ornamentals disease control. However,
this product may only be applied by a
Certified Pest Control Operator (PCO).
Therefore, an assessment for residential
handlers was not performed.
There is potential for dermal (adults
and children) and oral exposure
(children only) during post-application
activities. EPA assessed residential postapplication exposure using the
following assumptions:
i. Dermal exposure from pesticide
residues on lawns;
ii. Incidental non-dietary ingestion of
pesticide residues on lawns from handto-mouth transfer;
iii. Incidental non-dietary ingestion of
residues from object-to-mouth activities
(pesticide-treated turf grass); and
iv. Incidental non-dietary ingestion of
soil from pesticide-treated residential
areas.
Post-application exposures from
various activities following lawn
treatment are considered to be the most
common and significant in residential
settings. Exposure via incidental nondietary ingestion involving other plant
material may occur but is expected to
result in much less exposure than the
four exposure scenarios listed above.
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
trifloxystrobin and 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
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not assumed that trifloxystrobin 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 EPA’s website at https://
www.epa.gov/pesticides/cumulative.
D. Safety Factor for Infants and
Children
1. In general. Section 408 of FFDCA
provides that EPA shall apply an
additional (‘‘10X’’) tenfold 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. In applying this
provision, EPA either retains the default
value of 10X when reliable data do not
support the choice of a different factor,
or, if reliable data are available, EPA
uses a different additional FQPA safety
factor value based on the use of
traditional UFs and/or special FQPA
safety factors, as appropriate.
2. Prenatal and postnatal sensitivity.
There is no indication of increased
susceptibility of rat or rabbits to
trifloxystrobin. In the developmental
and reproduction toxicity studies,
effects in the fetuses/offspring were
observed only at or above treatment
levels which resulted in evidence of
parental toxicity.
3. Conclusion. EPA has determined
that reliable data show that it would be
safe for infants and children to reduce
the FQPA safety factor to 1X. That
decision is based on the following
findings:
i. The toxicity database for
trifloxystrobin is complete except for an
acute neurotoxicity study which is
classified as unacceptable. The toxicity
database contains developmental
toxicity studies in two species (rats and
rabbits) and a 2–generation
reproduction study in rats which are
adequate to assess prenatal and/or
postnatal susceptibility to infants and
children. Although the available,
submitted acute neurotoxicity study was
found to be unacceptable, based on a
weight-of-the evidence review of the
available data, the lack of this study
does not impact the Agency’s ability to
make an FQPA safety factor decision.
Since there was no evidence of
neurotoxicity in this study at the limit
dose nor in the other subchronic and
chronic studies in the database, there is
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55
no uncertainty concerning neurotoxic
effects and EPA has reliable data to
show that removal of the FQPA safety
factor is safe for children. Additionally,
these data demonstrate that a
developmental neurotoxicity study is
not required for this pesticide.
ii. There is no residual concern for
prenatal or postnatal toxicity or
increased sensitivity in infants and
children. In both the rat developmental
study and the 2–generation
reproduction studies there were no
effects in fetal animals or offspring at
the highest dose tested. Although
developmental effects were seen in the
rabbit developmental study, there was a
clear NOAEL identified for these effects
and that NOAEL was used in setting the
aPAD. Moreover, adverse effects were
seen in the adult animals in this study
at a lower level.
iii. There are no residual uncertainties
identified in the exposure databases.
The dietary food exposure assessments
were performed based on 100 PCT and
tolerance-level residues. Conservative
ground water and surface water
modeling estimates were used.
Similarly, conservative assumptions
were used to assess post-application
exposure to children as well as
incidental oral exposure of toddlers.
These assessments will not
underestimate the exposure and risks
posed by trifloxystrobin.
E. Aggregate Risks and Determination of
Safety
Safety is assessed for acute and
chronic risks by comparing aggregate
exposure to the pesticide to the aPAD
and cPAD. The aPAD and cPAD are
calculated by dividing the LOC by all
applicable UFs. For linear cancer risks,
EPA calculates the probability of
additional cancer cases given aggregate
exposure. Short-term, intermediateterm, and long-term risks are evaluated
by comparing aggregate exposure to the
LOC to ensure that the MOE called for
by the product of all applicable UFs is
not exceeded.
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 < 1% of the
aPAD for females 13 to 49 years old.
2. Chronic risk. Using the exposure
assumptions described in this unit for
chronic exposure, EPA has concluded
that exposure to trifloxystrobin from
food and water will utilize 52% of the
cPAD for all infants less than 1 year old.
Based on the use pattern, chronic
residential exposure to residues of
trifloxystrobin is not expected to
underestimate risk to adults or children.
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3. Short-term risk. Short-term
aggregate exposure takes into account
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 food and water and
short-term exposures for trifloxystrobin.
Using the exposure assumptions
described in this unit for short-term
exposures, EPA has concluded that
food, water, and residential exposures
aggregated result in aggregate dermal
MOEs of 1,200 and 670 for the U.S.
population and all infants <1 year old,
respectively, and an oral MOE of 150 for
all infants <1 year old.
4. Intermediate-term risk.
Intermediate-term exposure (1 to 6
months) to the parent trifloxystrobin is
not expected to occur in residential
settings due to its short half-life (about
2 days based on soil and aquatic
metabolism studies). Therefore, an
intermediate-term aggregate risk
assessment was not performed.
5. Aggregate cancer risk for U.S.
population. EPA has classified
trifloxystrobin as a ‘‘not likely human
carcinogen,’’ and EPA considers
trifloxystrobin to pose no greater than a
negligible 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
trifloxystrobin residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
An adequate gas chromatography with
nitrogen phosphorus detector (GC/NPD)
method (Method AG–659A) is available
for enforcing tolerances for the
combined residues of trifloxystrobin
and CGA–321113 in plant commodities.
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.
pwalker on PROD1PC71 with RULES
B. International Residue Limits
There are currently no Canadian
maximum residue levels (MRLs) for
trifloxystrobin. Codex and Mexican
MRLs have been established for
trifloxystrobin in or on various
commodities; however, there are no
Mexican MRLs for the commodities
associated with the proposed uses.
Codex MRLs have been established on
VerDate Aug<31>2005
19:41 Dec 31, 2007
Jkt 214001
carrots (0.1 ppm) and strawberry (0.2
ppm), which differs from the MRL
calculated by the MRL spreadsheet for
strawberry (1.1 ppm). Also, the residue
definition for both Codex and Mexican
MRLs includes only parent compound
in plant commodities, but the definition
for Codex MRLs in livestock
commodities includes parent and the
acid metabolite, CGA321113.
Harmonization in plant commodities is
not possible at this time as the current
U.S. tolerance definition includes the
combined residues of trifloxystrobin
and its free acid metabolite.
C. Response to Comments
One comment was received from a
private citizen who opposed the
authorization to sell any pesticide that
leaves a residue on food. The Agency
has received this same comment from
this commenter on numerous previous
occasions and rejects it for the reasons
previously stated in the Federal
Register of 70 FR 1349, 1354 (January 7,
2005).
D. Explanation of Tolerance Revisions
Bayer CropScience requested a
reduction in the pre-harvest interval
from 30 to 7 days for citrus and a
corresponding modification of the
tolerance. The submitted field trial data
and processing studies are adequate to
support this request. As a result,
tolerance expressions have been revised
from 0.4 to 0.6 ppm for fruit, citrus,
group 10; and 36 to 38 ppm for citrus,
oil.
V. Conclusion
Therefore, the tolerances are
established for combined residues of
trifloxystrobin, Benzeneacetic acid,
(E,E)-a-(methoxyimino)-2-[[[[1-[3(trifluoromethyl)p 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)-ethylidene
aminooxymethyl]-phenyl]acetic acid, in
or on asparagus at 0.07 ppm; papaya at
0.7 ppm; sapote, black at 0.7 ppm;
canistel at 0.7 ppm; sapote, mamey at
0.7 ppm; mango at 0.7 ppm; sapodilla at
0.7 ppm; star apple at 0.7 ppm;
vegetable, root, except sugar beet,
subgroup 1B at 0.1 ppm; and radish,
tops at 10 ppm; fruit, citrus, group 10
at 0.6 ppm; citrus, oil at 38 ppm; citrus,
dried pulp at 1.0 ppm; and strawberry
at 1.1 ppm.
VI. Statutory and Executive Order
Reviews
This final rule establishes a tolerance
under section 408(d) of FFDCA in
response to a petition submitted to the
PO 00000
Frm 00056
Fmt 4700
Sfmt 4700
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 rule has
been exempted from review under
Executive Order 12866, this rule is not
subject to Executive Order 13211,
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
Populations (59 FR 7629, February 16,
1994).
Since tolerances and exemptions that
are established on the basis of a petition
under section 408(d) of FFDCA, 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 section 408(n)(4) of FFDCA. 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 6, 2000) do not apply
to this rule. In addition, This 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)
(Public Law 104–4).
This action does not involve any
technical standards that would require
Agency consideration of voluntary
consensus standards pursuant to section
E:\FR\FM\02JAR1.SGM
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Federal Register / Vol. 73, No. 1 / Wednesday, January 2, 2008 / Rules and Regulations
12(d) of the National Technology
Transfer and Advancement Act of 1995
(NTTAA), Public Law 104–113, section
12(d) (15 U.S.C. 272 note).
VII. Congressional Review Act
The Congressional Review Act, 5
U.S.C. 801 et seq., generally provides
that before a rule may take effect, the
agency promulgating the rule must
submit a rule report to each House of
the Congress and to the Comptroller
General of the United States. 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 this final rule in the
Federal Register. This final rule 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: December 20, 2007.
Lois Rossi,
Director, Registration Division, Office of
Pesticide Programs.
PART 180—[AMENDED]
1. The authority citation for part 180
continues to read as follows:
I
Authority: 21 U.S.C. 321(q), 346a and 371.
2. In § 180.555, the table to paragraph
(a) is amended by revising the entries
for ‘‘Citrus, dried pulp’’ ‘‘Citrus, oil’’
and ‘‘Fruit, citrus, group 10,’’ and by
alphabetically adding new commodities
to read as follows:
I
Trifloxystrobin.
(a) * * *
pwalker on PROD1PC71 with RULES
*
*
*
Asparagus .......................
*
*
*
Canistel ...........................
*
*
*
Citrus, dried pulp ............
Citrus, oil .........................
*
*
*
Fruit, citrus, group 10 .....
*
*
*
Mango .............................
*
*
*
Papaya ............................
*
*
*
Radish, tops ....................
*
*
*
Sapodilla .........................
VerDate Aug<31>2005
Parts per million
*
*
*
*
*
*
0.07
0.7
1.0
38
*
*
*
*
*
*
*
*
*
*
0.6
0.7
0.7
10
19:41 Dec 31, 2007
0.7
Jkt 214001
Sapote, black ..................
Sapote, mamey ..............
*
*
*
Star apple .......................
Strawberry ......................
*
*
*
Vegetable, root, except
sugar beet, subgroup
1B ................................
*
*
*
*
*
*
*
0.7
0.7
*
*
0.7
1.1
*
*
*
*
0.1
*
[FR Doc. E7–25396 Filed 12–31–07; 8:45 am]
BILLING CODE 6560–50–S
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Parts 260 and 261
[EPA–HQ–RCRA–2002–0002: FRL–8511–5]
RIN 2050–AE78
Regulation of Oil-Bearing Hazardous
Secondary Materials From the
Petroleum Refining Industry
Processed in a Gasification System To
Produce Synthesis Gas
Environmental Protection
Agency.
ACTION: Final rule.
Therefore, 40 CFR chapter I is
amended as follows:
Commodity
Parts per million
AGENCY:
I
§ 180.555
Commodity
SUMMARY: The Environmental Protection
Agency (EPA) is revising its hazardous
waste management regulations under
the Resource Conservation and
Recovery Act (RCRA) to further promote
the environmentally sound recycling of
oil-bearing hazardous secondary
materials generated by the petroleum
refining industry. Specifically, EPA is
amending an existing exclusion from
the definition of solid waste for oilbearing hazardous secondary materials
when they are processed in a
gasification system at a petroleum
refinery for the production of synthesis
gas. We are finalizing this exclusion so
that the gasification of these materials
will have the same regulatory status
(they are all excluded from the
definition of solid waste under RCRA)
as oil-bearing hazardous secondary
materials that are reinserted into the
petroleum refining process. This action
serves what we believe is a national
interest by capturing as much energy
from a barrel of oil as possible to
maximize production efficiencies at
petroleum refineries in an energy
constrained world.
DATES: This final rule is effective on
February 1, 2008.
ADDRESSES: EPA has established a
docket for this action under Docket ID
No. EPA–HQ–RCRA–2002–0002. All
PO 00000
Frm 00057
Fmt 4700
Sfmt 4700
57
documents in the docket are listed on
the https://www.regulations.gov web site.
Although listed in the index, some
information is not publicly available,
because, for example, it may be
Confidential Business Information (CBI)
or other information, the disclosure of
which is restricted by statute. Certain
material, such as copyrighted material,
is not placed on the Internet and will be
publicly available only in hard copy
form. Publicly available docket
materials are available either
electronically through https://
www.regulations.gov or in hard copy at
the RCRA Docket, EPA/DC, EPA West,
Room 3334, 1301 Constitution Avenue,
NW., Washington, DC. This Docket
Facility 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 RCRA docket is (202) 566–0270.
FOR FURTHER INFORMATION CONTACT:
Elaine Eby, Waste Minimization Branch,
Hazardous Waste Minimization and
Management Division, Office of Solid
Waste (5302P), Environmental
Protection Agency, 1200 Pennsylvania
Ave., NW., Washington, DC 20460;
telephone number: (703) 308–8449, fax
number: (703) 308–8433, e-mail
address: eby.elaine@epa.gov.
SUPPLEMENTARY INFORMATION:
A. Does This Action Apply to Me?
This rule may apply to entities
regulated under RCRA, in the petroleum
refining industry, identified as Standard
Industrial Classification (SIC) 2911. To
determine whether your facility,
company, or business is affected by this
action, you should carefully examine 40
CFR Parts 260 through 271. If you have
questions regarding the applicability of
this action to a particular entity, consult
the person listed in the preceding ‘‘FOR
FURTHER INFORMATION CONTACT’’ section.
B. Table of Contents
I. Statutory Authority.
II. Summary of This Action.
III. Background.
IV. Development of This Final Rule.
A. How Many Gasification Systems Are
Currently Operating at Petroleum
Refineries?
B. What Conclusions Have We Drawn
About Gasification Systems Operating at
Petroleum Refineries?
V. This Final Rule.
A. Does the Conditional Exclusion Include
a Definition for a Gasification System
Used at a Petroleum Refinery?
B. Does the Conditional Exclusion Include
a Synthesis Gas Specification?
C. Does the Conditional Exclusion Prohibit
Oil-Bearing Hazardous Secondary
Material From Being Placed on the Land
E:\FR\FM\02JAR1.SGM
02JAR1
Agencies
[Federal Register Volume 73, Number 1 (Wednesday, January 2, 2008)]
[Rules and Regulations]
[Pages 52-57]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-25396]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2006-0732; FRL-8342-6]
Trifloxystrobin; Pesticide Tolerance
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes tolerances for the combined
residues of trifloxystrobin, and its free form acid metabolite in or on
asparagus; papaya; sapote, black; canistel; sapote, mamey; mango;
sapodilla; star apple; vegetable, root, except sugar beet, subgroup 1B;
radish, tops; fruit, citrus, group 10; citrus, oil; citrus, dried pulp;
and strawberry. Interregional Research Project Number 4 (IR-4), and
Bayer Crop Science requested these tolerances under the Federal Food,
Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective January 2, 2008. Objections and
requests for hearings must be received on or before March 3, 2008, 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: EPA has established a docket for this action under docket
identification (ID) number EPA-HQ-OPP-2006-0732. To access the
electronic docket, go to https://www.regulations.gov, select ``Advanced
Search,'' then ``Docket Search.'' Insert the docket ID number where
indicated and select the ``Submit'' button. Follow the instructions on
the regulations.gov website to view the docket index or access
available documents. All documents in the docket are listed in the
docket index available in regulations.gov. Although listed in the
index, some information is not publicly available, e.g., Confidential
Business Information (CBI) or other information whose disclosure is
restricted by statute. Certain other material, such as copyrighted
material, is not placed on the Internet and will be publicly available
only in hard copy form. Publicly available docket materials are
available in the electronic docket at https://www.regulations.gov, or,
if only available in hard copy, at the OPP Regulatory Public Docket in
Rm. S-4400, One Potomac Yard (South Bldg.), 2777 S. Crystal Dr.,
Arlington, VA. The Docket Facility is open from 8:30 a.m. to 4 p.m.,
Monday through Friday, excluding legal holidays. The Docket Facility
telephone number is (703) 305-5805.
FOR FURTHER INFORMATION CONTACT: Shaja R. Brothers, Registration
Division (7505P), Office of Pesticide Programs, Environmental
Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-
0001; telephone number: (703) 308-3194; e-mail address:
brothers.shaja@epa.gov.
SUPPLEMENTARY INFORMATION:
[[Page 53]]
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.
Potentially affected entities may include, but are not limited to those
engaged in the following activities:
Crop production (NAICS code 111), e.g., agricultural
workers; greenhouse, nursery, and floriculture workers; farmers.
Animal production (NAICS code 112), e.g., cattle ranchers
and farmers, dairy cattle farmers, livestock farmers.
Food manufacturing (NAICS code 311), e.g., agricultural
workers; farmers; greenhouse, nursery, and floriculture workers;
ranchers; pesticide applicators.
Pesticide manufacturing (NAICS code 32532), e.g.,
agricultural workers; commercial applicators; farmers; greenhouse,
nursery, and floriculture workers; residential users.
This listing is not intended to be exhaustive, but rather to
provide a guide for readers regarding entities likely to be affected by
this action. Other types of entities not listed in this unit could also
be affected. The North American Industrial Classification System
(NAICS) codes have been provided to assist you and others in
determining whether this action might apply to certain entities. If you
have any questions regarding the applicability of this action to a
particular entity, consult the person listed under FOR FURTHER
INFORMATION CONTACT.
B. How Can I Access Electronic Copies of this Document?
In addition to accessing an electronic copy of this Federal
Register document through the electronic docket at https://
www.regulations.gov, you may access this Federal Register document
electronically through the EPA Internet under the ``Federal Register''
listings at https://www.epa.gov/fedrgstr. You may also access a
frequently updated electronic version of EPA's tolerance regulations at
40 CFR part 180 through the Government Printing Office's pilot e-CFR
site at https://www.gpoaccess.gov/ecfr.
C. Can I File an Objection or Hearing Request?
Under section 408(g) of FFDCA, 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-2006-0732 in the subject line on the first page of
your submission. All requests must be in writing, and must be mailed or
delivered to the Hearing Clerk as required by 40 CFR part 178 on or
before March 3, 2008.
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 that does not contain any CBI for inclusion in the public
docket that is described in ADDRESSES. Information not marked
confidential pursuant to 40 CFR part 2 may be disclosed publicly by EPA
without prior notice. Submit this copy, identified by docket ID number
EPA-HQ-OPP-2006-0732, by one of the following methods:
Federal eRulemaking Portal: https://www.regulations.gov.
Follow the on-line instructions for submitting comments.
Mail: Office of Pesticide Programs (OPP) Regulatory Public
Docket (7502P), Environmental Protection Agency, 1200 Pennsylvania
Ave., NW., Washington, DC 20460-0001.
Delivery: OPP Regulatory Public Docket (7502P),
Environmental Protection Agency, Rm. S-4400, One Potomac Yard (South
Bldg.), 2777 S. Crystal Dr., Arlington, VA. Deliveries are only
accepted during the Docket's normal hours of operation (8:30 a.m. to 4
p.m., Monday through Friday, excluding legal holidays). Special
arrangements should be made for deliveries of boxed information. The
Docket Facility telephone number is (703) 305-5805.
II. Petition for Tolerance
In the Federal Registers of September 13, 2006 (71 FR 54058) (FRL-
8091-2), and August 22, 2007 (72 FR 47010) (FRL-8142-5), EPA issued
notices pursuant to section 408(d)(3) of FFDCA, 21 U.S.C. 346a(d)(3),
announcing the filing of pesticide petitions (PPs) 6E7088, 6F7123,
7F7171 by IR-4, 500 College Road East, Suite 201 W, Princeton, NJ
08540; and Bayer CropScience, P.O. Box 12014, 2 T.W. Alexander Drive,
Research Triangle Park, NC 27709. These petitions requested that 40 CFR
180.555 be amended by establishing tolerances for combined 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,
in or on asparagus at 0.07 parts per million (ppm); papaya at 0.7 ppm;
sapote, black at 0.7ppm; canistel at 0.7 ppm; sapote, mamey at 0.7 ppm;
mango at 0.7 ppm; sapodilla at 0.7 ppm; star apple at 0.7 ppm;
vegetable, root, except sugar beet, subgroup 1B at 0.1 ppm; and radish,
tops at 10 ppm (6E7088); fruit, citrus, group 10 at 0.4 ppm; citrus,
oil at 36 ppm; citrus, dried pulp at 1.0 ppm (6F7123); and strawberry
at 1.1 ppm (6F7171). These notices referenced a summary of the
petitions prepared by Bayer CropScience, the registrant, which is
available to the public in the docket, https://www.regulations.gov. One
comment was received from a private citizen on the notice of filing
concerning the tolerances for strawberry and citrus. EPA's response to
these comments is discussed in Unit IV.C.
Based upon review of the data supporting the petition, EPA has
increased the tolerances on fruit, citrus, group 10 from 0.4 to 0.6
ppm, and citrus, oil from 36 to 38 ppm. The reason for these changes is
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....'' These provisions were added to FFDCA by the Food Quality
Protection Act (FQPA) of 1996.
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 the petitioned-for tolerance
for combined residues of trifloxystrobin on asparagus at 0.07
[[Page 54]]
ppm; papaya at 0.7 ppm; sapote, black at 0.7 ppm; canistel at 0.7 ppm;
sapote, mamey at 0.7 ppm; mango at 0.7 ppm; sapodilla at 0.7 ppm; star
apple at 0.7 ppm; vegetable, root, except sugar beet, subgroup 1B at
0.1 ppm; and radish, tops at 10 ppm; fruit, citrus, group 10 at 0.6
ppm; citrus, oil at 38 ppm; citrus, dried pulp at 1.0 ppm; and
strawberry at 1.1 ppm. EPA's assessment of exposures and risks
associated with establishing these tolerances follow.
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. 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 can be found in the
Trifloxystrobin: Human Health Risk Assessment for Section 3
Registration for the Proposed Uses on Grasses Grown for Seed on pages
41 and 42 at https://www.regulations.gov. The referenced document is
available in docket EPA-HQ-OPP-2007-0539.
B. Toxicological Endpoints
For hazards that have a threshold below which there is no
appreciable risk, the toxicological level of concern (LOC) is derived
from the highest dose at which no adverse effects are observed (the
NOAEL) in the toxicology study identified as appropriate for use in
risk assessment. However, if a NOAEL cannot be determined, the lowest
dose at which adverse effects of concern are identified (the LOAEL) is
sometimes used for risk assessment. Uncertainty/safety factors (UFs)
are used in conjunction with the LOC to take into account uncertainties
inherent in the extrapolation from laboratory animal data to humans and
in the variations in sensitivity among members of the human population
as well as other unknowns. Safety is assessed for acute and chronic
risks by comparing aggregate exposure to the pesticide to the acute
population adjusted dose (aPAD) and chronic population adjusted dose
(cPAD). The aPAD and cPAD are calculated by dividing the LOC by all
applicable UFs. Short-term, intermediate-term, and long-term risks are
evaluated by comparing aggregate exposure to the LOC to ensure that the
margin of exposure (MOE) called for by the product of all applicable
UFs is not exceeded.
For non-threshold risks, the Agency assumes that any amount of
exposure will lead to some degree of risk and estimates risk in terms
of the probability of occurrence of additional adverse cases.
Generally, cancer risks are considered non-threshold. 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/fedrgstr/EPA-PEST/1997/November/Day-26/p30948.htm.
A summary of the toxicological endpoints for trifloxystrobin used
for human risk assessment can be found at https://www.regulations.gov in
the Trifloxystrobin: Human Health Risk Assessment for Section 3 Uses on
Asparagus; Vegetable, Root Except Sugar Beet, Subgroup 1B; Radish
(Tops); and Papaya, Black Sapote, Canistel, Mamey Sapote, Mango,
Sapodilla, and Star Apple, Citrus Fruits, Crop Group 10; Citrus, Oil;
and Citrus, Dried Pulp, and Strawberry on pages 16 and 17 for docket ID
number EPA-HQ-OPP-2006-0732.
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. In estimating acute dietary
exposure, EPA used food consumption information from the U.S.
Department of Agriculture (USDA) 1994-1996 and 1998 Nationwide
Continuing Surveys of Food Intake by Individuals (CSFII). As to residue
levels in food, EPA assumed tolerance level residues and 100 percent
crop treated (PCT) was performed for trifloxystrobin.
ii. Chronic exposure. In conducting the chronic dietary exposure
assessment, EPA used the food consumption data from the USDA 1994-1996,
and 1998 CSFII. As to residue levels in food, EPA assumed tolerance
level residues and 100 PCT was performed for trifloxystrobin. PCT and/
or anticipated residues were not used.
iii. Cancer. Trifloxystrobin is classified as a ``not likely
carcinogen''; therefore, quantification of human cancer risk is not
required and a cancer dietary exposure assessment was not performed.
2. Dietary exposure from drinking water. The Agency lacks
sufficient monitoring data to complete a comprehensive dietary exposure
analysis and risk assessment for trifloxystrobin in drinking water.
Because the Agency does not have comprehensive monitoring data,
drinking water concentration estimates are made by reliance on
simulation or modeling taking into account data on the environmental
fate characteristics of trifloxystrobin. 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.
Trifloxystrobin is immobile in soil. It degrades and transforms
rapidly in soil and aquatic environments. The primary degradate is CGA-
321113. Estimated drinking water concentrations (EDWCs) were calculated
for total trifloxystrobin residues (parent trifloxystrobin plus the
major degradate CGA-321113) using the Agency's First Index Reservior
Screening Tool (FIRST) model for surface water and the Screening
Concentration in Ground Water (SCI-GROW) model for ground water. The
interim method for drinking water estimates for pesticides used in rice
paddies was also used to generate EDWCs. The use site with the highest
application rate is turf, with a maximum label rate of 1.078 pounds
active ingredient/acre/year (lb ai/A/yr) (three applications at 0.359
lb ai/A/yr). Drinking water estimates were also provided for rice
paddies that may be treated with trifloxystrobin.
The Agency determined that the highest EDWC for both acute and
chronic analysis should use 140 parts per billion (ppb) based on the
model for the use on rice. Because this model does not account for
degradation of the chemical or dilution with uncontaminated water
outside of the rice paddy, the calculated EDWCs (140 ppb) are expected
to exceed concentrations likely to be found in drinking water derived
from surface water sources.
Based on the FIRST, and SCI-GROW models, the estimated
environmental concentrations (EECs) of trifloxystrobin for acute and
chronic exposures for surface water are estimated at 140 ppb. Acute and
chronic exposure for ground water is estimated at 3.4 ppb.
Modeled estimates of drinking water concentrations were directly
entered
[[Page 55]]
into the dietary exposure model. For the acute and chronic dietary risk
assessments, the water concentration values of 140 ppb (acute and
chronic) were used to access the contribution to drinking water.
3. From non-dietary exposure. The term ``residential exposure'' is
used in this document to refer to non-occupational, non-dietary
exposure (e.g., for lawn and garden pest control, indoor pest control,
termiticides, and flea and tick control on pets).
Trifloxystrobin is currently registered for the following
residential non-dietary sites: CompassTM is registered for
residential use on turf grass and ornamentals disease control. However,
this product may only be applied by a Certified Pest Control Operator
(PCO). Therefore, an assessment for residential handlers was not
performed.
There is potential for dermal (adults and children) and oral
exposure (children only) during post-application activities. EPA
assessed residential post-application exposure using the following
assumptions:
i. Dermal exposure from pesticide residues on lawns;
ii. Incidental non-dietary ingestion of pesticide residues on lawns
from hand-to-mouth transfer;
iii. Incidental non-dietary ingestion of residues from object-to-
mouth activities (pesticide-treated turf grass); and
iv. Incidental non-dietary ingestion of soil from pesticide-treated
residential areas.
Post-application exposures from various activities following lawn
treatment are considered to be the most common and significant in
residential settings. Exposure via incidental non-dietary ingestion
involving other plant material may occur but is expected to result in
much less exposure than the four exposure scenarios listed above.
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 trifloxystrobin and 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 not assumed that trifloxystrobin
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 EPA's website at https://www.epa.gov/pesticides/
cumulative.
D. Safety Factor for Infants and Children
1. In general. Section 408 of FFDCA provides that EPA shall apply
an additional (``10X'') tenfold 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. In
applying this provision, EPA either retains the default value of 10X
when reliable data do not support the choice of a different factor, or,
if reliable data are available, EPA uses a different additional FQPA
safety factor value based on the use of traditional UFs and/or special
FQPA safety factors, as appropriate.
2. Prenatal and postnatal sensitivity. There is no indication of
increased susceptibility of rat or rabbits to trifloxystrobin. In the
developmental and reproduction toxicity studies, effects in the
fetuses/offspring were observed only at or above treatment levels which
resulted in evidence of parental toxicity.
3. Conclusion. EPA has determined that reliable data show that it
would be safe for infants and children to reduce the FQPA safety factor
to 1X. That decision is based on the following findings:
i. The toxicity database for trifloxystrobin is complete except for
an acute neurotoxicity study which is classified as unacceptable. The
toxicity database contains developmental toxicity studies in two
species (rats and rabbits) and a 2-generation reproduction study in
rats which are adequate to assess prenatal and/or postnatal
susceptibility to infants and children. Although the available,
submitted acute neurotoxicity study was found to be unacceptable, based
on a weight-of-the evidence review of the available data, the lack of
this study does not impact the Agency's ability to make an FQPA safety
factor decision. Since there was no evidence of neurotoxicity in this
study at the limit dose nor in the other subchronic and chronic studies
in the database, there is no uncertainty concerning neurotoxic effects
and EPA has reliable data to show that removal of the FQPA safety
factor is safe for children. Additionally, these data demonstrate that
a developmental neurotoxicity study is not required for this pesticide.
ii. There is no residual concern for prenatal or postnatal toxicity
or increased sensitivity in infants and children. In both the rat
developmental study and the 2-generation reproduction studies there
were no effects in fetal animals or offspring at the highest dose
tested. Although developmental effects were seen in the rabbit
developmental study, there was a clear NOAEL identified for these
effects and that NOAEL was used in setting the aPAD. Moreover, adverse
effects were seen in the adult animals in this study at a lower level.
iii. There are no residual uncertainties identified in the exposure
databases. The dietary food exposure assessments were performed based
on 100 PCT and tolerance-level residues. Conservative ground water and
surface water modeling estimates were used. Similarly, conservative
assumptions were used to assess post-application exposure to children
as well as incidental oral exposure of toddlers. These assessments will
not underestimate the exposure and risks posed by trifloxystrobin.
E. Aggregate Risks and Determination of Safety
Safety is assessed for acute and chronic risks by comparing
aggregate exposure to the pesticide to the aPAD and cPAD. The aPAD and
cPAD are calculated by dividing the LOC by all applicable UFs. For
linear cancer risks, EPA calculates the probability of additional
cancer cases given aggregate exposure. Short-term, intermediate-term,
and long-term risks are evaluated by comparing aggregate exposure to
the LOC to ensure that the MOE called for by the product of all
applicable UFs is not exceeded.
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 < 1% of the aPAD for females 13 to 49
years old.
2. Chronic risk. Using the exposure assumptions described in this
unit for chronic exposure, EPA has concluded that exposure to
trifloxystrobin from food and water will utilize 52% of the cPAD for
all infants less than 1 year old. Based on the use pattern, chronic
residential exposure to residues of trifloxystrobin is not expected to
underestimate risk to adults or children.
[[Page 56]]
3. Short-term risk. Short-term aggregate exposure takes into
account 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 food and water and short-term
exposures for trifloxystrobin.
Using the exposure assumptions described in this unit for short-
term exposures, EPA has concluded that food, water, and residential
exposures aggregated result in aggregate dermal MOEs of 1,200 and 670
for the U.S. population and all infants <1 year old, respectively, and
an oral MOE of 150 for all infants <1 year old.
4. Intermediate-term risk. Intermediate-term exposure (1 to 6
months) to the parent trifloxystrobin is not expected to occur in
residential settings due to its short half-life (about 2 days based on
soil and aquatic metabolism studies). Therefore, an intermediate-term
aggregate risk assessment was not performed.
5. Aggregate cancer risk for U.S. population. EPA has classified
trifloxystrobin as a ``not likely human carcinogen,'' and EPA considers
trifloxystrobin to pose no greater than a negligible 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 trifloxystrobin residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
An adequate gas chromatography with nitrogen phosphorus detector
(GC/NPD) method (Method AG-659A) is available for enforcing tolerances
for the combined residues of trifloxystrobin and CGA-321113 in plant
commodities.
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; e-mail address:
residuemethods@epa.gov.
B. International Residue Limits
There are currently no Canadian maximum residue levels (MRLs) for
trifloxystrobin. Codex and Mexican MRLs have been established for
trifloxystrobin in or on various commodities; however, there are no
Mexican MRLs for the commodities associated with the proposed uses.
Codex MRLs have been established on carrots (0.1 ppm) and strawberry
(0.2 ppm), which differs from the MRL calculated by the MRL spreadsheet
for strawberry (1.1 ppm). Also, the residue definition for both Codex
and Mexican MRLs includes only parent compound in plant commodities,
but the definition for Codex MRLs in livestock commodities includes
parent and the acid metabolite, CGA321113. Harmonization in plant
commodities is not possible at this time as the current U.S. tolerance
definition includes the combined residues of trifloxystrobin and its
free acid metabolite.
C. Response to Comments
One comment was received from a private citizen who opposed the
authorization to sell any pesticide that leaves a residue on food. The
Agency has received this same comment from this commenter on numerous
previous occasions and rejects it for the reasons previously stated in
the Federal Register of 70 FR 1349, 1354 (January 7, 2005).
D. Explanation of Tolerance Revisions
Bayer CropScience requested a reduction in the pre-harvest interval
from 30 to 7 days for citrus and a corresponding modification of the
tolerance. The submitted field trial data and processing studies are
adequate to support this request. As a result, tolerance expressions
have been revised from 0.4 to 0.6 ppm for fruit, citrus, group 10; and
36 to 38 ppm for citrus, oil.
V. Conclusion
Therefore, the tolerances are established for combined 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, in or on asparagus at
0.07 ppm; papaya at 0.7 ppm; sapote, black at 0.7 ppm; canistel at 0.7
ppm; sapote, mamey at 0.7 ppm; mango at 0.7 ppm; sapodilla at 0.7 ppm;
star apple at 0.7 ppm; vegetable, root, except sugar beet, subgroup 1B
at 0.1 ppm; and radish, tops at 10 ppm; fruit, citrus, group 10 at 0.6
ppm; citrus, oil at 38 ppm; citrus, dried pulp at 1.0 ppm; and
strawberry at 1.1 ppm.
VI. Statutory and Executive Order Reviews
This final rule establishes a tolerance under section 408(d) of
FFDCA 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 rule has been
exempted from review under Executive Order 12866, this rule is not
subject to Executive Order 13211, 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
Populations (59 FR 7629, February 16, 1994).
Since tolerances and exemptions that are established on the basis
of a petition under section 408(d) of FFDCA, 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 section 408(n)(4) of FFDCA. 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 6, 2000) do not apply to this rule. In addition, This
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) (Public Law 104-4).
This action does not involve any technical standards that would
require Agency consideration of voluntary consensus standards pursuant
to section
[[Page 57]]
12(d) of the National Technology Transfer and Advancement Act of 1995
(NTTAA), Public Law 104-113, section 12(d) (15 U.S.C. 272 note).
VII. Congressional Review Act
The Congressional Review Act, 5 U.S.C. 801 et seq., generally
provides that before a rule may take effect, the agency promulgating
the rule must submit a rule report to each House of the Congress and to
the Comptroller General of the United States. 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 this final rule in the Federal
Register. This final rule 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: December 20, 2007.
Lois Rossi,
Director, Registration Division, Office of Pesticide Programs.
0
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, the table to paragraph (a) is amended by revising
the entries for ``Citrus, dried pulp'' ``Citrus, oil'' and ``Fruit,
citrus, group 10,'' and by alphabetically adding new commodities to
read as follows:
Sec. 180.555 Trifloxystrobin.
(a) * * *
------------------------------------------------------------------------
Commodity Parts per million
------------------------------------------------------------------------
* * * * *
Asparagus............................................ 0.07
* * * * *
Canistel............................................. 0.7
* * * * *
Citrus, dried pulp................................... 1.0
Citrus, oil.......................................... 38
* * * * *
Fruit, citrus, group 10.............................. 0.6
* * * * *
Mango................................................ 0.7
* * * * *
Papaya............................................... 0.7
* * * * *
Radish, tops......................................... 10
* * * * *
Sapodilla............................................ 0.7
Sapote, black........................................ 0.7
Sapote, mamey........................................ 0.7
* * * * *
Star apple........................................... 0.7
Strawberry........................................... 1.1
* * * * *
Vegetable, root, except sugar beet, subgroup 1B...... 0.1
* * * * *
------------------------------------------------------------------------
* * * * *
[FR Doc. E7-25396 Filed 12-31-07; 8:45 am]
BILLING CODE 6560-50-S