Document ID: EPA-HQ-OPP-2006-0732-0003
Agency: epa
Document Type: Rule
Title: Trifloxystrobin; Pesticide Tolerance
Posted Date: 2008-01-02T05:00Z

[Federal Register: January 2, 2008 (Volume 73, Number 1)]
[Rules and Regulations]               
[Page 52-57]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr02ja08-13]                         

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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.

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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 http://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 http://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 http://www.regulations.gov
, you may access this Federal Register document 

electronically through the EPA Internet under the ``Federal Register'' 
listings at http://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 http://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: http://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, http://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 http://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 http://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 http://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 http://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 http://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]

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