Trifloxystrobin; Pesticide Tolerance, 53440-53445 [E7-18371]
Download as PDF
53440
Federal Register / Vol. 72, No. 181 / Wednesday, September 19, 2007 / Rules and Regulations
yshivers on PROD1PC66 with RULES
follows: Artichoke, globe from 0.05 ppm
to 0.1 ppm; asparagus from 0.1 ppm to
0.15 ppm; brassica head and stem,
subgroup 5-A from 0.05 ppm to 0.1
ppm; and grape from 0.05 ppm to 0.1
ppm.
The tolerances for artichoke, globe;
brassica head and stem, subgroup 5-A;
and grape were determined based on the
sum of the method Limits of
Quantitation (LOQ) for parent
pendimethalin (0.05 ppm) and its
regulated metabolite (0.05 ppm), since
no detectable residues were found in the
submitted residue field trials.
The tolerance for asparagus was
determined using the Agency’s
Tolerance Spreadsheet in accordance
with the Agency’s Guidance for Setting
Pesticide Tolerances Based on Field
Trial Data.
Therefore, tolerances are established
for combined residues of
pendimethalin, N-(1-ethylpropyl)-3,4dimethyl-2,6-dinitrobenzenamine, and
its metabolite, 4-[(1-ethylpropyl)amino]2-methyl-3,5-dinitrobenzyl alcohol, in
or on artichoke, globe at 0.1 ppm;
asparagus at 0.15 ppm; brassica head
and stem, subgroup 5-A at 0.1 ppm; and
grape at 0.1 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,
VerDate Aug<31>2005
15:05 Sep 18, 2007
Jkt 211001
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
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).
Dated: September 7, 2007.
Lois Rossi,
Director, Registration Division, Office of
Pesticide Programs.
VII. Congressional Review Act
Trifloxystrobin; Pesticide Tolerance
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.
PO 00000
Frm 00030
Fmt 4700
Sfmt 4700
Therefore, 40 CFR chapter I 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 180.361 is amended by
alphabetically adding the following
commodities to the table in paragraph
(a) to read as follows:
I
180.361 Pendimethalin; tolerances for
residues.
(a) * * *
Parts per
million
Commodity
*
*
*
*
Artichoke, globe ........................
Asparagus .................................
*
*
*
*
Brassica head and stem, subgroup 5-A ..............................
*
*
*
*
Grape ........................................
*
*
*
*
*
0.1
0.15
*
0.1
*
0.1
*
[FR Doc. E7–18259 Filed 9–18–07; 8:45 am]
BILLING CODE 6560–50–S
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2007–0539; FRL–8147–3]
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
SUMMARY: This regulation establishes a
tolerance for combined residues of
Trifloxystrobin and the acid metabolite
CGA–321113 in or on grass, forage and
grass, hay. Bayer CropScience requested
this tolerance under the Federal Food,
Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective
September 19, 2007. Objections and
requests for hearings must be received
on or before November 19, 2007, 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–2007–0539. To access the
electronic docket, go to https://
E:\FR\FM\19SER1.SGM
19SER1
Federal Register / Vol. 72, No. 181 / Wednesday, September 19, 2007 / Rules and Regulations
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:
Janet Whitehurst, Registration Division
(7505P), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001; telephone number:
(703) 305–6129; e-mail address:
whitehurst.janet@epa.gov.
SUPPLEMENTARY INFORMATION:
yshivers on PROD1PC66 with RULES
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
VerDate Aug<31>2005
15:05 Sep 18, 2007
Jkt 211001
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 the 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–2007–0539 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 November 19, 2007.
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–2007–0539, 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.
PO 00000
Frm 00031
Fmt 4700
Sfmt 4700
53441
• 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 Register of August 1,
2007 (72 FR 42072) (FRL–8138–1), EPA
issued a notice pursuant to section
408(d)(3) of the FFDCA, 21 U.S.C.
346a(d)(3), announcing the filing of a
pesticide petition (PP 6F7024) by Bayer
CropScience, P.O. Box 12014, 2 T.W.
Alexander Dr., Research Triangle Park,
NC 27709. The petition requested that
40 CFR 180.555 be amended by
establishing a tolerance 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-(3trifluoromethylphenyl)ethylideneaminooxymethyl]-phenyl]
acetic acid, in or on grass, forage at 10
parts per million (ppm) and grass, hay
at 14 ppm. That notice referenced a
summary of the petition prepared by
Bayer CropScience, the registrant,
which is available to the public in the
docket, https://www.regulations.gov.
Comments were received on the notice
of filing. EPA’s response to these
comments is discussed in Unit IV.C.
below.
Based upon review of the data
supporting the petition, EPA has
modified the tolerances proposed for
grass, forage and grass, hay. The
appropriate tolerances for grass forage
and hay were calculated to be 12 and 17
ppm, respectively. Although residue
data were also provided for grass straw
and seed screenings, tolerances are not
required on these commodities as the
Agency no longer considers them to be
significant livestock feedstuffs. The
recommended tolerance levels for grass
forage and hay were determined
considering recent Agency Guidance
(Guidance for Setting Pesticide
Tolerances Based on Field Trial Data).
III. Aggregate Risk Assessment and
Determination of Safety
Section 408(b)(2)(A)(i) of the FFDCA
allows EPA to establish a tolerance (the
E:\FR\FM\19SER1.SGM
19SER1
53442
Federal Register / Vol. 72, No. 181 / Wednesday, September 19, 2007 / Rules and Regulations
yshivers on PROD1PC66 with RULES
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 the 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 the 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, (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-(3trifluoromethylphenyl)ethylideneaminooxymethyl]-phenyl]
acetic acid (hereinafter referrred to as
Trifloxsytrobin) on grass, forage at 12
ppm and grass, hay at 17 ppm. EPA’s
assessment of exposures and risks
associated with establishing the
tolerance follows.
A. Toxicological Profile
EPA has evaluated the available
toxicity data and considered its validity,
completeness, and reliability as well as
the relationship of the results of the
studies to human risk. EPA has also
considered available information
concerning the variability of the
sensitivities of major identifiable
subgroups of consumers, including
infants and children. 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
VerDate Aug<31>2005
15:05 Sep 18, 2007
Jkt 211001
can be found in the Trifloxystrobin:
Human Health Risk Assessment for
Section 3 Registration for the Proposed
Uses on Grasses Grown for Seed. at
https://www.regulations.gov. The
referenced document is available in the
docket established by this action, which
is described under ADDRESSES, and is
identified as EPA–HQ–OPP–2007–0539
in that docket.
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/oppfead1/trac/science;
https://www.epa.gov/pesticides/
factsheets/riskassess.htm; https://
www.epa.gov/pesticides/trac/science/
aggregate.pdf
A summary of the toxicological
endpoints for Trifloxystrobin used for
human risk assessment can be found at
https://www.regulations.gov in document
Trifloxystrobin: Human Health Risk
Assessment for Section 3 Registration
for the Proposed Uses on Grasses Grown
for Seed. Petition No: 6F7024 at page 16
PO 00000
Frm 00032
Fmt 4700
Sfmt 4700
in docket ID number EPA–HQ–OPP–
2007–0539.
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
100% crop treated (CT) and tolerance
level residues for each commodity.
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 100% CT and tolerance level
residues for each commodity.
iii. Cancer. The Agency classified
trifloxystrobin as a ‘‘not likely
carcinogen;’’ therefore, quantification of
human cancer risk is not required and
a cancer dietary assessment was not
performed.
iv. Anticipated residue and percent
crop treated (PCT) information. The
Agency did not use anticipated residue
estimates or PCT information in the
trifloxystrobin dietary exposure
assessment.
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.
Based on the First Index Reservoir
Screening Tool (FIRST), Screening
Concentration in Ground Water (SCIGROW) models, and rice paddies
E:\FR\FM\19SER1.SGM
19SER1
yshivers on PROD1PC66 with RULES
Federal Register / Vol. 72, No. 181 / Wednesday, September 19, 2007 / Rules and Regulations
method the estimated environmental
concentrations (EECs) of Trifloxystrobin
and the metabolite CGA–321113 for
acute exposures are estimated to be 92
parts per billion (ppb) for surface water
and 3.4 ppb for ground water. The EECs
for chronic exposures are estimated to
be 140 ppb for surface water and 3.4
ppb for ground water.
Modeled estimates of drinking water
concentrations were directly entered
into the dietary exposure model. For
acute dietary risk assessment, the water
concentration value of 92 ppb was used
to access the contribution to drinking
water. For chronic dietary risk
assessment, the water concentration of
value 140 ppb was 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: Turfgrass and ornamentals. EPA
assessed residential exposure using the
following assumption: Nonoccupational postapplication contact
with trifloxystrobin following
Compass use on turfgrass is the most
common and worst case contributor to
such exposures.
4. Cumulative effects from substances
with a common mechanism of toxicity.
Section 408(b)(2)(D)(v) of the 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.
VerDate Aug<31>2005
15:05 Sep 18, 2007
Jkt 211001
D. Safety Factor for Infants and
Children
1. In general. Section 408 of the
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.
In the prenatal developmental study in
rats there was no developmental toxicity
at the Limit Dose. In the prenatal
developmental study in rabbits,
developmental toxicity was seen at a
dose that was higher than the dose that
caused maternal toxicity. In the 2–
generation reproduction study, there
was no offspring toxicity at the highest
dose tested.
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 pre and/or post natal
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. Given that 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 not an 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.
PO 00000
Frm 00033
Fmt 4700
Sfmt 4700
53443
ii. There is no residual concern for
pre- or post-natal toxicity or increased
sensitivity in infants and children. In
both the rat developmental study and
the 2–generation reproduction study
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% CT and
tolerance-level residues Conservative
ground water and surface water
modeling estimates were used. Similarly
conservative Residential SOPs 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 the population group (females
13–49 years old) receiving the greatest
exposure.
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 81% of the
cPAD for the population group (children
1–2 years old, the most highly exposed
subgroup). Based on the use pattern,
chronic residential exposure to residues
of Trifloxystrobin is not expected.
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
E:\FR\FM\19SER1.SGM
19SER1
53444
Federal Register / Vol. 72, No. 181 / Wednesday, September 19, 2007 / Rules and Regulations
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 MOEs
greater than 100 for adults and children
1–2 years. Therefore, the Agency does
not consider short term aggregate risk to
be of concern.
4. Intermediate-term risk.
Intermediate-term aggregate exposure
takes into account residential exposure
plus chronic exposure to food and water
(considered to be a background
exposure level).
Though residential exposure could
occur intermediate-term aggregate risk is
not expected based on the short soil
half-life (about 2 days). Therefore, an
intermediate-term aggregate risk
assessment was not performed.
5. Aggregate cancer risk for U.S.
population. The Agency classified
trifloxystrobin as a ‘‘not likely’’ human
carcinogen. Therefore, trifloxystrobin is
not expected to pose a cancer risk.
6. Determination of safety. Based on
these risk assessments, EPA concludes
that there is a reasonable certainty that
no harm will result to the general
population or to infants and children
from aggregate exposure to
trifloxystrobin residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology
(Gas Chromatography with a nitrogen
phosphorus detector (GC/NPD method
(Method AG–659A)) is available to
enforce the tolerance expression. The
method may be requested from: Chief,
Analytical Chemistry Branch,
Environmental Science Center, 701
Mapes Rd., Ft. Meade, MD 20755–5350;
telephone number: (410) 305–2905; email address: residuemethods@epa.gov.
yshivers on PROD1PC66 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/on various
commodities; however, there are no
MRLs for the commodities associated
with the proposed use of trifloxystrobin
in/on grasses grown for seed. 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
VerDate Aug<31>2005
15:05 Sep 18, 2007
Jkt 211001
and the acid metabolite, CGA321113.
Therefore, 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. Harmonization of the
tolerance level in meat by-products of
cattle, goats, and sheep is not possible
at this time as the U.S. tolerance in meat
by-products reflects higher potential
exposures to various feedstuffs.
C. Response to Comments
One comment was received from B.
Sachau. Ms. Sachau’s comments
regarding general exposure to pesticides
contained no scientific data or evidence
to rebut the Agency’s conclusion that
there is a reasonable certainty that no
harm will result from aggregate
exposure to trilfoxystrobin, including all
anticipated dietary exposures and other
exposures for which there is reliable
information. This comment as well as
her comments regarding animal testing
have been responded to by the Agency
on several occasions. For examples, see
the Federal Register issues of January 7,
2005 (70 FR 1349) (FRL–7691–4) and
October 29, 2004 (69 FR 63083) (FRL–
7681–9).
V. Conclusion
Therefore, the tolerance is established
for combined residues of
Trifloxystrobin, (benzeneacetic acid,
(E,E)-a-(methoxyimino)-2-[[[[1-[3(trifluoromethyl)
phenyl]ethylidene]amino]oxy] methyl]methyl ester) and the free form of its
acid metabolite CGA–321113 (E,E)methoxyimino-[2-[1-(3trifluoromethylphenyl)ethylideneaminooxymethyl]-phenyl]
acetic acid in or on grass, forage at
tolerance level 12 ppm and grass, hay at
tolerance level 17 ppm.
VI. Statutory and Executive Order
Reviews
This final rule establishes a tolerance
under section 408(d) of the 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
PO 00000
Frm 00034
Fmt 4700
Sfmt 4700
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 the 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 the 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
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
E:\FR\FM\19SER1.SGM
19SER1
Federal Register / Vol. 72, No. 181 / Wednesday, September 19, 2007 / Rules and Regulations
requests for hearings must be received
on or before November 19, 2007, 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–
List of Subjects in 40 CFR Part 180
OPP–2006–0297. To access the
Environmental protection,
electronic docket, go to https://
Administrative practice and procedure,
www.regulations.gov, select ‘‘Advanced
Agricultural commodities, Pesticides
Search,’’ then ‘‘Docket Search.’’ Insert
and pests, Reporting and recordkeeping the docket ID number where indicated
requirements.
and select the ‘‘Submit’’ button. Follow
Dated: September 10, 2007.
the instructions on the regulations.gov
website to view the docket index or
Daniel J. Rosenblatt,
access available documents. All
Acting Director, Registration Division, Office
documents in the docket are listed in
of Pesticide Programs.
the docket index available in
I Therefore, 40 CFR chapter I is
regulations.gov. Although listed in the
amended as follows:
index, some information is not publicly
available, e.g., Confidential Business
PART 180—[AMENDED]
Information (CBI) or other information
I 1. The authority citation for part 180
whose disclosure is restricted by statute.
continues to read as follows:
Certain other material, such as
copyrighted material, is not placed on
Authority: 21 U.S.C. 321(q), 346a and 371.
the Internet and will be publicly
I 2. Section 180.555 is amended by
available only in hard copy form.
alphabetically adding the following
Publicly available docket materials are
commodities in the table in paragraph
available in the electronic docket at
(a):
https://www.regulations.gov, or, if only
§ 180.555 Trifloxystrobin; tolerances for
available in hard copy, at the OPP
residues.
Regulatory Public Docket in Rm. S–
(a) *
*
*
4400, One Potomac Yard (South Bldg.),
2777 S. Crystal Dr., Arlington, VA. The
Commodity
Parts per million
Docket Facility is open from 8:30 a.m.
to 4 p.m., Monday through Friday,
*
*
*
*
*
excluding legal holidays. The Docket
Grass, forage ..................
12
Grass, hay ......................
17 Facility telephone number is (703) 305–
5805.
*
*
*
*
*
FOR FURTHER INFORMATION CONTACT:
Sidney Jackson, Registration Division
*
*
*
*
*
(7505P), Office of Pesticide Programs,
[FR Doc. E7–18371 Filed 9–18–07; 8:45 am]
Environmental Protection Agency, 1200
BILLING CODE 6560–50–S
Pennsylvania Ave., NW., Washington,
DC 20460–0001; telephone number:
(703) 305–7610; e-mail address:
ENVIRONMENTAL PROTECTION
jackson.sidney@epa.gov.
AGENCY
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).
SUPPLEMENTARY INFORMATION:
40 CFR Part 180
I. General Information
EPA–HQ–OPP–2006–0297; FRL–8146–8]
A. Does this Action Apply to Me?
Desmedipham; Pesticide Tolerance
Environmental Protection
Agency (EPA).
ACTION: Final rule.
yshivers on PROD1PC66 with RULES
AGENCY:
SUMMARY: This regulation establishes a
tolerance for residues of desmedipham
in or on beet, garden, roots; beet, garden,
tops and spinach. The Interregional
Research Project No. 4 (IR-4) requested
this tolerance under the Federal Food,
Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective
September 19, 2007. Objections and
VerDate Aug<31>2005
15:05 Sep 18, 2007
Jkt 211001
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.
PO 00000
Frm 00035
Fmt 4700
Sfmt 4700
53445
• 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 the 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–2006–0297 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 November 19, 2007.
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
E:\FR\FM\19SER1.SGM
19SER1
Agencies
[Federal Register Volume 72, Number 181 (Wednesday, September 19, 2007)]
[Rules and Regulations]
[Pages 53440-53445]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-18371]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2007-0539; FRL-8147-3]
Trifloxystrobin; Pesticide Tolerance
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes a tolerance for combined residues
of Trifloxystrobin and the acid metabolite CGA-321113 in or on grass,
forage and grass, hay. Bayer CropScience requested this tolerance under
the Federal Food, Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective September 19, 2007. Objections and
requests for hearings must be received on or before November 19, 2007,
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-2007-0539. To access the
electronic docket, go to https://
[[Page 53441]]
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: Janet Whitehurst, Registration
Division (7505P), Office of Pesticide Programs, Environmental
Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-
0001; telephone number: (703) 305-6129; e-mail address:
whitehurst.janet@epa.gov.
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does this Action Apply to Me?
You may be potentially affected by this action if you are an
agricultural producer, food manufacturer, or pesticide manufacturer.
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 the 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-2007-0539 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 November 19, 2007.
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-2007-0539, 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 Register of August 1, 2007 (72 FR 42072) (FRL-8138-
1), EPA issued a notice pursuant to section 408(d)(3) of the FFDCA, 21
U.S.C. 346a(d)(3), announcing the filing of a pesticide petition (PP
6F7024) by Bayer CropScience, P.O. Box 12014, 2 T.W. Alexander Dr.,
Research Triangle Park, NC 27709. The petition requested that 40 CFR
180.555 be amended by establishing a tolerance 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-
trifluoromethylphenyl)-ethylideneaminooxymethyl]-phenyl] acetic acid,
in or on grass, forage at 10 parts per million (ppm) and grass, hay at
14 ppm. That notice referenced a summary of the petition prepared by
Bayer CropScience, the registrant, which is available to the public in
the docket, https://www.regulations.gov. Comments were received on the
notice of filing. EPA's response to these comments is discussed in Unit
IV.C. below.
Based upon review of the data supporting the petition, EPA has
modified the tolerances proposed for grass, forage and grass, hay. The
appropriate tolerances for grass forage and hay were calculated to be
12 and 17 ppm, respectively. Although residue data were also provided
for grass straw and seed screenings, tolerances are not required on
these commodities as the Agency no longer considers them to be
significant livestock feedstuffs. The recommended tolerance levels for
grass forage and hay were determined considering recent Agency Guidance
(Guidance for Setting Pesticide Tolerances Based on Field Trial Data).
III. Aggregate Risk Assessment and Determination of Safety
Section 408(b)(2)(A)(i) of the FFDCA allows EPA to establish a
tolerance (the
[[Page 53442]]
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 the
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 the
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, (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-
trifluoromethylphenyl)-ethylideneaminooxymethyl]-phenyl] acetic acid
(hereinafter referrred to as Trifloxsytrobin) on grass, forage at 12
ppm and grass, hay at 17 ppm. EPA's assessment of exposures and risks
associated with establishing the tolerance follows.
A. Toxicological Profile
EPA has evaluated the available toxicity data and considered its
validity, completeness, and reliability as well as the relationship of
the results of the studies to human risk. EPA has also considered
available information concerning the variability of the sensitivities
of major identifiable subgroups of consumers, including infants and
children. 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. at http:/
/www.regulations.gov. The referenced document is available in the
docket established by this action, which is described under ADDRESSES,
and is identified as EPA-HQ-OPP-2007-0539 in that docket.
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/oppfead1/trac/science; https://www.epa.gov/pesticides/
factsheets/riskassess.htm; https://www.epa.gov/pesticides/trac/science/
aggregate.pdf
A summary of the toxicological endpoints for Trifloxystrobin used
for human risk assessment can be found at https://www.regulations.gov in
document Trifloxystrobin: Human Health Risk Assessment for Section 3
Registration for the Proposed Uses on Grasses Grown for Seed. Petition
No: 6F7024 at page 16 in docket ID number EPA-HQ-OPP-2007-0539.
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 100% crop treated
(CT) and tolerance level residues for each commodity.
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 100% CT and
tolerance level residues for each commodity.
iii. Cancer. The Agency classified trifloxystrobin as a ``not
likely carcinogen;'' therefore, quantification of human cancer risk is
not required and a cancer dietary assessment was not performed.
iv. Anticipated residue and percent crop treated (PCT) information.
The Agency did not use anticipated residue estimates or PCT information
in the trifloxystrobin dietary exposure assessment.
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.
Based on the First Index Reservoir Screening Tool (FIRST),
Screening Concentration in Ground Water (SCI-GROW) models, and rice
paddies
[[Page 53443]]
method the estimated environmental concentrations (EECs) of
Trifloxystrobin and the metabolite CGA-321113 for acute exposures are
estimated to be 92 parts per billion (ppb) for surface water and 3.4
ppb for ground water. The EECs for chronic exposures are estimated to
be 140 ppb for surface water and 3.4 ppb for ground water.
Modeled estimates of drinking water concentrations were directly
entered into the dietary exposure model. For acute dietary risk
assessment, the water concentration value of 92 ppb was used to access
the contribution to drinking water. For chronic dietary risk
assessment, the water concentration of value 140 ppb was 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: Turfgrass and ornamentals. EPA assessed
residential exposure using the following assumption: Non-occupational
postapplication contact with trifloxystrobin following Compass[reg] use
on turfgrass is the most common and worst case contributor to such
exposures.
4. Cumulative effects from substances with a common mechanism of
toxicity. Section 408(b)(2)(D)(v) of the 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 the 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. In the prenatal
developmental study in rats there was no developmental toxicity at the
Limit Dose. In the prenatal developmental study in rabbits,
developmental toxicity was seen at a dose that was higher than the dose
that caused maternal toxicity. In the 2-generation reproduction study,
there was no offspring toxicity at the highest dose tested.
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 pre and/or post natal 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.
Given that 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 not an 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 pre- or post-natal toxicity or
increased sensitivity in infants and children. In both the rat
developmental study and the 2-generation reproduction study 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% CT and tolerance-level residues Conservative ground water and
surface water modeling estimates were used. Similarly conservative
Residential SOPs 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 the population group
(females 13-49 years old) receiving the greatest exposure.
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 81% of the cPAD for
the population group (children 1-2 years old, the most highly exposed
subgroup). Based on the use pattern, chronic residential exposure to
residues of Trifloxystrobin is not expected.
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
[[Page 53444]]
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 MOEs greater than 100 for
adults and children 1-2 years. Therefore, the Agency does not consider
short term aggregate risk to be of concern.
4. Intermediate-term risk. Intermediate-term aggregate exposure
takes into account residential exposure plus chronic exposure to food
and water (considered to be a background exposure level).
Though residential exposure could occur intermediate-term aggregate
risk is not expected based on the short soil half-life (about 2 days).
Therefore, an intermediate-term aggregate risk assessment was not
performed.
5. Aggregate cancer risk for U.S. population. The Agency classified
trifloxystrobin as a ``not likely'' human carcinogen. Therefore,
trifloxystrobin is not expected to pose a cancer risk.
6. Determination of safety. Based on these risk assessments, EPA
concludes that there is a reasonable certainty that no harm will result
to the general population or to infants and children from aggregate
exposure to trifloxystrobin residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology (Gas Chromatography with a
nitrogen phosphorus detector (GC/NPD method (Method AG-659A)) is
available to enforce the tolerance expression. The method may be
requested from: Chief, Analytical Chemistry Branch, Environmental
Science Center, 701 Mapes Rd., Ft. Meade, MD 20755-5350; telephone
number: (410) 305-2905; 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/on various commodities; however, there are no MRLs
for the commodities associated with the proposed use of trifloxystrobin
in/on grasses grown for seed. 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. Therefore,
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. Harmonization of the
tolerance level in meat by-products of cattle, goats, and sheep is not
possible at this time as the U.S. tolerance in meat by-products
reflects higher potential exposures to various feedstuffs.
C. Response to Comments
One comment was received from B. Sachau. Ms. Sachau's comments
regarding general exposure to pesticides contained no scientific data
or evidence to rebut the Agency's conclusion that there is a reasonable
certainty that no harm will result from aggregate exposure to
trilfoxystrobin, including all anticipated dietary exposures and other
exposures for which there is reliable information. This comment as well
as her comments regarding animal testing have been responded to by the
Agency on several occasions. For examples, see the Federal Register
issues of January 7, 2005 (70 FR 1349) (FRL-7691-4) and October 29,
2004 (69 FR 63083) (FRL-7681-9).
V. Conclusion
Therefore, the tolerance is 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-trifluoromethylphenyl)-ethylideneaminooxymethyl]-
phenyl] acetic acid in or on grass, forage at tolerance level 12 ppm
and grass, hay at tolerance level 17 ppm.
VI. Statutory and Executive Order Reviews
This final rule establishes a tolerance under section 408(d) of the
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 the 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 the 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 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
[[Page 53445]]
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: September 10, 2007.
Daniel J. Rosenblatt,
Acting 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. Section 180.555 is amended by alphabetically adding the following
commodities in the table in paragraph (a):
Sec. 180.555 Trifloxystrobin; tolerances for residues.
(a) * * *
------------------------------------------------------------------------
Commodity Parts per million
------------------------------------------------------------------------
* * * * *
Grass, forage........................................ 12
Grass, hay........................................... 17
* * * * *
------------------------------------------------------------------------
* * * * *
[FR Doc. E7-18371 Filed 9-18-07; 8:45 am]
BILLING CODE 6560-50-S