Mesotrione; Pesticide Tolerance, 14546-14551 [05-5719]
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14546
Federal Register / Vol. 70, No. 55 / Wednesday, March 23, 2005 / Rules and Regulations
alter the relationships or distribution of
power and responsibilities established
by Congress in the preemption
provisions of section 408(n)(4) of
FFDCA. For these same reasons, the
Agency has determined that this rule
does not have any ‘‘tribal implications’’
as described in Executive Order 13175,
entitled Consultation and Coordination
with Indian Tribal Governments (65 FR
67249, November 6, 2000). Executive
Order 13175, requires EPA to develop
an accountable process to ensure
‘‘meaningful and timely input by tribal
officials in the development of
regulatory policies that have tribal
implications.’’ ‘‘Policies that have tribal
implications’’ is defined in the
Executive Order to include regulations
that have ‘‘substantial direct effects on
one or more Indian tribes, on the
relationship between the Federal
Government and the Indian tribes, or on
the distribution of power and
responsibilities between the Federal
Government and Indian tribes.’’ This
rule will not have substantial direct
effects on tribal governments, on the
relationship between the Federal
Government and Indian tribes, or on the
distribution of power and
responsibilities between the Federal
Government and Indian tribes, as
specified in Executive Order 13175.
Thus, Executive Order 13175 does not
apply to this rule.
VIII. Congressional Review Act
The Congressional Review Act, 5
U.S.C. 801 et seq., as added by the Small
Business Regulatory Enforcement
Fairness Act of 1996, generally provides
that before a rule may take effect, the
agency promulgating the rule must
submit a rule report, which includes a
copy of the rule, 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.
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Dated: February 25, 2005.
Lois Rossi,
Director, Registration Division, Office of
Pesticide Programs.
(b) Section 18 emergency exemptions.
[Reserved]
(c) Tolerances with regional
registrations. [Reserved]
(d) Indirect or inadvertent residues.
[Reserved]
Therefore, 40 CFR chapter I is
amended as follows:
I
[FR Doc. 05–5620 Filed 3–22–05; 8:45 am]
PART 180—[AMENDED]
BILLING CODE 6560–50–S
1. The authority citation for part 180
continues to read as follows:
I
Authority: 21 U.S.C. 321(q), 346a and 371.
ENVIRONMENTAL PROTECTION
AGENCY
2. Section 180.603 is revised to read as
follows:
40 CFR Part 180
§ 180.603 Dinotefuran; tolerances for
residues.
Mesotrione; Pesticide Tolerance
I
(a) General. (1) Tolerances are
established for the combined residues of
Dinotefuran, [N-methyl-N′-nitro-N′′((tetrahydro-3furanyl)methyl)guanidine] and its
metabolites DN [1-methyl-3-(tetrahydro3-furylmethyl)guanidine] and UF [1methyl-3-(tetrahydro-3furylmethyl)urea], expressed as
dinotefuran.
Parts per
million
Commodity
Brassica, head and stem, subgroup 5A ...............................
Cotton, undelinted seed ...........
Cotton, gin byproducts .............
Grape ........................................
Grape, raisin .............................
Potato .......................................
Potato, chips .............................
Potato, granules/flakes .............
Tomato, paste ...........................
Vegetable, fruiting, group 8 ......
Vegetable, cucubit, group 9 .....
Vegetable, leafy, except Brassica, group 4 .........................
1.4
0.4
8.0
0.9
2.5
0.05
0.1
0.15
1.0
0.7
0.5
5.0
(2) Tolerances are established for
residues of dinotefuran N-methyl-N′nitro-N′′-tetrahydro-3furanyl)methyl)guanidine in/on the
following commodities:
Parts per
million
Commodity
Cattle, fat ..................................
Cattle, mbyp .............................
Cattle, meat ..............................
Goat, fat ....................................
Goat, mbyp ...............................
Goat, meat ................................
Hog, fat .....................................
Hog, mbyp ................................
Hog, meat .................................
Horse, fat ..................................
Horse, mbyp .............................
Horse, meat ..............................
Milk ...........................................
Sheep, fat .................................
Sheep, mbyp ............................
Sheep, meat .............................
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0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
[OPP–2005–0049; FRL–7703–1]
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
SUMMARY: This regulation establishes
tolerances for residues of mesotrione in
or on sweet corn. Syngenta Crop
Protection Inc. requested these
tolerances under the Federal Food,
Drug, and Cosmetic Act (FFDCA), as
amended by the Food Quality Protection
Act of 1996 (FQPA).
DATES: This regulation is effective
March 23, 2005. Objections and requests
for hearings must be received on or
before May 23, 2005.
ADDRESSES: To submit a written
objection or hearing request follow the
detailed instructions as provided in
Unit VI. of the SUPPLEMENTARY
INFORMATION. EPA has established a
docket for this action under docket
identification (ID) number OPP–2005–
0049. All documents in the docket are
listed in the EDOCKET index at
https://www.epa.gov/edocket. Although
listed in the index, some information is
not publicly available, i.e., 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 either
electronically in EDOCKET or in hard
copy at the Public Information and
Records Integrity Branch (PIRIB), Rm.
119, Crystal Mall #2, 1801 S. Bell St.,
Arlington, VA. This docket facility is
open from 8:30 a.m. to 4 p.m., Monday
through Friday, excluding legal
holidays. The docket telephone number
is (703) 305–5805.
FOR FURTHER INFORMATION CONTACT:
Joanne Miller, Registration Division
(7505C), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460; telephone number: (703)
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305–6224; and e-mail address:
miller.joanne@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:
• Crop production (NAICS 111), e.g.,
agricultural workers; greenhouse,
nursery, and floriculture workers;
farmers.
• Animal production (NAICS 112),
e.g., cattle ranchers and farmers, dairy
cattle farmers, livestock farmers.
• Food manufacturing (NAICS 311),
e.g., agricultural workers; farmers;
greenhouse, nursery, and floriculture
workers; ranchers; pesticide applicators.
• Pesticide manufacturing (NAICS
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 provides 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 and Other Related
Information?
In addition to using EDOCKET
(https://www.epa.gov/edocket/), you may
access this Federal Register document
electronically through the EPA Internet
under the ‘‘Federal Register’’ listings at
https://www.epa.gov/fedrgstr/. A
frequently updated electronic version of
40 CFR part 180 is available at E-CFR
Beta Site Two at https://
www.gpoaccess.gov/ecfr/. To access the
OPPTS Harmonized Guidelines
referenced in this document, go directly
to the guidelines at https://www.epa.gpo/
opptsfrs/home/guidelin.htm/.
II. Background and Statutory Findings
In the Federal Register of August 7,
2002 (67 FR 152) (FRL–7186–5), EPA
issued a notice pursuant to section
408(d)(3) of FFDCA, 21 U.S.C.
346a(d)(3), announcing the filing of a
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pesticide petition (2F6443) by Syngenta
Crop Protection Inc., 410 Swing Road,
PO Box 18300, Greensboro, NC 27419–
8300. The petition requested that 40
CFR 180.571 be amended by
establishing tolerances for residues of
the herbicide mesotrione, 2-[4(methylsulfonyl)-2-nitrobenzoyl]-1,3cyclohexanedione, in or on the raw
agricultural commodities (RACs) sweet
corn ears, sweet corn forage, and sweet
corn stover at 0.01, 0.50, and 2.0 parts
per million (ppm); respectively. That
notice included a summary of the
petition prepared by Syngenta Crop
Protection Inc., the registrant. There
were no comments received in response
to the notice of filing. The tolerances for
sweet corn stover is corrected to 1.5
ppm to reflect the submitted residue
data. Sweet corn ears is corrected to
sweet corn kernel plus cob with husks
removed.
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. . . .’’
EPA performs a number of analyses to
determine the risks from aggregate
exposure to pesticide residues. For
further discussion of the regulatory
requirements of section 408 of FFDCA
and a complete description of the risk
assessment process, see the final rule on
Bifenthrin Pesticide Tolerances of
November 26, 1997 (62 FR 62961) (FRL–
5754–7).
III. Aggregate Risk Assessment and
Determination of Safety
Consistent with section 408(b)(2)(D)
of FFDCA, 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,
consistent with section 408(b)(2) of
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14547
FFDCA, for tolerances for residues of
mesotrione on sweet corn kernel plus
cob with husks removed, sweet corn
forage, and sweet corn stover at 0.01,
0.50, and 1.5 ppm; respectively. 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. The nature of the
toxic effects caused by mesotrione as
well as the no observed adverse effect
level (NOAEL) and the lowest observed
adverse effect level (LOAEL) from the
toxicity studies reviewed are discussed
in the Federal Register of June 21, 2001
(66 FR 33187) (FRL–6787–7).
B. Toxicological Endpoints
A summary of the toxicological
endpoints for mesotrione used for
human risk assessment is discussed in
Unit III.B. of the final rule published in
the Federal Register of June 21, 2001
(66 FR 33187) (FRL–67877).
C. Exposure Assessment
1. Dietary exposure from food and
feed uses. Tolerances have been
established (40 CFR 180.571) for the
residues of mesotrione, in or on a
variety of RACs. Risk assessments were
conducted by EPA to assess dietary
exposures from mesotrione in food as
follows:
i. Acute exposure. Acute dietary risk
assessments are performed for a fooduse pesticide if a toxicological study has
indicated the possibility of an effect of
concern occurring as a result of a one
day or single exposure. No appropriate
study available shows any acute dietary
effects of concern.
ii. Chronic exposure. In conducting
this chronic dietary risk assessment the
Dietary Exposure Evaluation Model
(DEEMTM) analysis evaluated the
individual food consumption as
reported by respondents in the United
States Department of Agriculture
(USDA) 1989–1992 nationwide
Continuing Surveys of Food Intake by
Individuals (CSFII) and accumulated
exposure to the chemical for each
commodity. The following assumptions
were made for the chronic exposure
assessments: Residue levels are at the
recommended tolerances for field corn,
popcorn, sweet corn and cranberries
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and 100% of the crops are treated with
mesotrione. The %cPAD for the general
U.S. population is 3% and for the most
sensitive population subgroups,
children 3–5 years old, is 7% of the
cPAD.
iii. Cancer. Acceptable oral rat and
mouse carcinogenicity studies showed
no evidence of carcinogenic or
mutagenic potential. Therefore, no
exposure assessment is needed to access
cancer risk.
2. Dietary exposure from drinking
water. The Agency lacks sufficient
monitoring exposure data to complete a
comprehensive dietary exposure
analysis and risk assessment for
mesotrione 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 physical characteristics of
mesotrione.
The Agency uses the Generic
Estimated Environmental Concentration
(GENEEC) or the Pesticide Root Zone
Model/Exposure Analysis Modeling
System (PRZM/EXAMS) to estimate
pesticide concentrations in surface
water and SCI-GROW, which predicts
pesticide concentrations in ground
water. In general, EPA will use GENEEC
(a Tier 1 model) before using PRZM/
EXAMS (a Tier 2 model) for a screeninglevel assessment for surface water. The
GENEEC model is a subset of the PRZM/
EXAMS model that uses a specific highend runoff scenario for pesticides.
GENEEC incorporates a farm pond
scenario, while PRZM/EXAMS
incorporate an index reservoir
environment in place of the previous
pond scenario. The PRZM/EXAMS
model includes a percent crop (PC) area
factor as an adjustment to account for
the maximum percent crop coverage
within a watershed or drainage basin.
None of these models include
consideration of the impact processing
(mixing, dilution, or treatment) of raw
water for distribution as drinking water
would likely have on the removal of
pesticides from the source water. The
primary use of these models by the
Agency at this stage is to provide a
screen for sorting out pesticides for
which it is unlikely that drinking water
concentrations would exceed human
health levels of concern.
Since the models used are considered
to be screening tools in the risk
assessment process, the Agency does
not use estimated environmental
concentrations (EECs), which are the
model estimates of a pesticide’s
concentration in water. EECs derived
from these models are used to quantify
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drinking water exposure and risk as a
percent reference dose (%RfD) or
percent adjusted dose (%PAD). Instead
drinking water levels of comparison
(DWLOCs) are calculated and used as a
point of comparison against the model
estimates of a pesticide’s concentration
in water. DWLOCs are theoretical upper
limits on a pesticide’s concentration in
drinking water in light of total aggregate
exposure to a pesticide in food, and
from residential uses. Since DWLOCs
address total aggregate exposure to
mesotrione they are further discussed in
the aggregate risk sections in Unit E.
Based on the GENEEC and SCI-GROW
models, the EECs of mesotrione for
acute exposures are estimated to be 20
parts per billion (ppb) for surface water
and 0.15 ppb for ground water. The
EECs for chronic exposures are
estimated to be 4.3 ppb for surface water
and 0.15 ppb for ground 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).
Mesotrione is not registered for use on
any sites that would result in residential
exposure.
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
mesotrione and any other substances
and mesotrione 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 mesotrione has a
common mechanism of toxicity with
other substances. For information
regarding EPA’s efforts to determine
which chemicals have a common
mechanism of toxicity and to evaluate
the cumulative effects of such
chemicals, see the policy statements
released by EPA concerning common
mechanism determinations and
procedures for cumulating effects from
substances found to have a common
mechanism on EPA’s web site at http:/
/www.epa.gov/pesticides/cumulative/.
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D. Safety Factor for Infants and
Children
1. In general. Section 408 of FFDCA
provides that EPA shall apply an
additional 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 data base on
toxicity and exposure unless EPA
determines based on reliable data that a
different margin of safety will be safe for
infants and children. Margins of safety
are incorporated into EPA risk
assessments either directly through use
of a margin of exposure (MOE) analysis
or through using uncertainty (safety)
factors in calculating a dose level that
poses no appreciable risk to humans. 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 safety factor value based on
the use of traditional uncertainty factors
and/or special FQPA safety factors, as
appropriate.
2. Prenatal and postnatal sensitivity.
There is quantitative evidence of
increased susceptibility demonstrated in
the oral prenatal developmental toxicity
studies in rats, mice, and rabbits.
Delayed ossification was seen in the
fetuses at doses below those at which
maternal toxic effects were noted.
Maternal toxic effects in the rat were
decreased body weight gain during
treatment and decreased food
consumption and in the rabbit,
abortions and gastrointestinal effects.
3. Conclusion. The FQPA safety factor
(10x) is retained in assessing the risk
posed because there is quantitative
evidence of increased susceptibility of
the young exposed to mesotrione in the
prenatal developmental toxicity studies
in mice, rats, and rabbits and in the
multi-generation reproduction study in
mice, there is qualitative evidence of
increased susceptibility of the young
exposed to mesotrione in the multigeneration reproduction study in rats;
and a developmental neurotoxicity
study is required to assess the effects of
tyrosinemia on the developing nervous
system exposed to mesotrione.
E. Aggregate Risks and Determination of
Safety
To estimate total aggregate exposure
to a pesticide from food, drinking water,
and residential uses, the Agency
calculates DWLOCs which are used as a
point of comparison against EECs.
DWLOC values are not regulatory
standards for drinking water. DWLOCs
are theoretical upper limits on a
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pesticide’s concentration in drinking
water in light of total aggregate exposure
to a pesticide in food and residential
uses. In calculating a DWLOC, the
Agency determines how much of the
acceptable exposure (i.e., the PAD) is
available for exposure through drinking
water e.g., allowable chronic water
exposure (mg/kg/day) = cPAD - (average
food + residential exposure). This
allowable exposure through drinking
water is used to calculate a DWLOC.
A DWLOC will vary depending on the
toxic endpoint, drinking water
consumption, and body weights. Default
body weights and consumption values
as used by the EPA’s Office of Water are
used to calculate DWLOCs: 2 liter (L)/
70 kg (adult male), 2L/60 kg (adult
female), and 1L/10 kg (child). Default
body weights and drinking water
consumption values vary on an
individual basis. This variation will be
taken into account in more refined
screening-level and quantitative
drinking water exposure assessments.
Different populations will have different
DWLOCs. Generally, a DWLOC is
calculated for each type of risk
assessment used: Acute, short-term,
intermediate-term, chronic, and cancer.
When EECs for surface water and
ground water are less than the
calculated DWLOCs, EPA concludes
with reasonable certainty that exposures
to the pesticide in drinking water (when
considered along with other sources of
exposure for which EPA has reliable
data) would not result in unacceptable
levels of aggregate human health risk at
this time. Because EPA considers the
aggregate risk resulting from multiple
exposure pathways associated with a
pesticide’s uses, levels of comparison in
drinking water may vary as those uses
change. If new uses are added in the
future, EPA will reassess the potential
impacts of residues of the pesticide in
drinking water as a part of the aggregate
risk assessment process.
14549
1. Acute risk. Acute doses and
endpoints were not identified for the
general U.S. population (including
infants and children) or the females 13–
50 years old population subgroup for
mesotrione; therefore, mesotrione is not
expected to pose an acute dietary risk.
2. Chronic risk. Using the exposure
assumptions described in this unit for
chronic exposure, EPA has concluded
that exposure to mesotrione from food
will utilize 3% of the cPAD for the U.S.
population, 4% of the cPAD for all
infants (> 1 year old), and 7% of the
cPAD for children 3–5 years old. There
are no residential uses for mesotrione
that result in chronic residential
exposure to mesotrione. After
calculating DWLOCs and comparing
them to the EECs for surface and ground
water, EPA does not expect the
aggregate exposure to exceed 100% of
the cPAD, as shown in following Table
1:
TABLE 1.—AGGREGATE RISK ASSESSMENT FOR CHRONIC (NON- CANCER) EXPOSURE TO MESOTRIONE
cPAD mg/
kg/day
Population Subgroup
Surface
Water EEC
(ppb)
%cPAD
(Food)
Ground
Water EEC
(ppb)
Chronic
DWLOC
(ppb)
U.S. population
0.0007
3
4.3
0.15
24
All infants (> 1 year old)
0.0 007
4
4.3
0.15
6.7
Children (3–5 years old)
0.0007
7
4.3
0.15
6.5
3. Short-term risk + intermediate-term
risk. Short-term + intermediate-term
aggregate exposure takes into account
residential exposure plus chronic
exposure to food and water (considered
to be a background exposure level).
Mesotrione is not registered for use on
any sites that would result in residential
exposure. Therefore, the aggregate risk
is the sum of the risk from food and
water, which do not exceed the
Agency’s level of concern.
4. 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, and to infants and children
from aggregate exposure to mesotrione
residues.
telephone number: (410) 305–2905; email address: residuemethods@epa.gov.
IV. Other Considerations
V. Conclusion
A. Analytical Enforcement Methodology
Therefore, the tolerances are
established for residues of mesotrione,
2-[4-(methylsulfonyl)-2-nitrobenzoyl]1,3-cyclohexanedione, in or on the
RACs sweet corn kernel plus cob with
husks removed, sweet corn forage, and
sweet corn stover at 0.01, 0.50, and 1.5
ppm; respectively.
Adequate enforcement methodology
(gas chromatography) 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;
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B. International Residue Limits
There are no CODEX, Canadian, or
Mexican tolerances/Maximum Residue
Levels for mesotrione residues. Thus,
harmonization is not an issue at this
time.
C. Conditions
Conversion of the mesotrione
registration to unconditional under
section 3(c)(5) of Federal Insecticide and
Fungicide Act (FIFRA) as amended may
be considered upon submission of
developmental neurotoxicity study in
the mouse, and an 28-day inhalation
study.
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VI. Objections and Hearing Requests
Under section 408(g) of FFDCA, as
amended by FQPA, any person may file
an objection to any aspect of this
regulation and may also request a
hearing on those objections. The EPA
procedural regulations which govern the
submission of objections and requests
for hearings appear in 40 CFR part 178.
Although the procedures in those
regulations require some modification to
reflect the amendments made to FFDCA
by FQPA, EPA will continue to use
those procedures, with appropriate
adjustments, until the necessary
modifications can be made. The new
section 408(g) of FFDCA provides
essentially the same process for persons
to ‘‘object’’ to a regulation for an
exemption from the requirement of a
tolerance issued by EPA under new
section 408(d) of FFDCA, as was
provided in the old sections 408 and
409 of FFDCA. However, the period for
filing objections is now 60–days, rather
than 30–days.
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A. What Do I Need to Do to File an
Objection or Request a Hearing?
You must file your objection or
request a hearing on this regulation in
accordance with the instructions
provided in this unit and in 40 CFR part
178. To ensure proper receipt by EPA,
you must identify docket ID number
OPP–2005–0049 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
on or before May 23, 2005.
1. Filing the request. Your objection
must specify the specific provisions in
the regulation that you object to, and the
grounds for the objections (40 CFR
178.25). If a hearing is requested, the
objections must include a statement of
the factual issues(s) on which a hearing
is requested, the requestor’s contentions
on such issues, and a summary of any
evidence relied upon by the objector (40
CFR 178.27). Information submitted in
connection with an objection or hearing
request may be claimed confidential by
marking any part or all of that
information as CBI. Information so
marked will not be disclosed except in
accordance with procedures set forth in
40 CFR part 2. A copy of the
information that does not contain CBI
must be submitted for inclusion in the
public record. Information not marked
confidential may be disclosed publicly
by EPA without prior notice.
Mail your written request to: Office of
the Hearing Clerk (1900L),
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001. You may also deliver
your request to the Office of the Hearing
Clerk in Suite 350, 1099 14th St., NW.,
Washington, DC 20005. The Office of
the Hearing Clerk is open from 8 a.m.
to 4 p.m., Monday through Friday,
excluding legal holidays. The telephone
number for the Office of the Hearing
Clerk is (202) 564–6255.
2. Copies for the Docket. In addition
to filing an objection or hearing request
with the Hearing Clerk as described in
Unit VI.A., you should also send a copy
of your request to the PIRIB for its
inclusion in the official record that is
described in ADDRESSES. Mail your
copies, identified by docket ID number
OPP–2005–0049, to: Public Information
and Records Integrity Branch,
Information Resources and Services
Division (7502C), Office of Pesticide
Programs, Environmental Protection
Agency, 1200 Pennsylvania Ave., NW.,
Washington, DC 20460–0001. In person
or by courier, bring a copy to the
location of the PIRIB described in
ADDRESSES. You may also send an
electronic copy of your request via e-
VerDate jul<14>2003
14:14 Mar 22, 2005
Jkt 205001
mail to: opp-docket@epa.gov. Please use
an ASCII file format and avoid the use
of special characters and any form of
encryption. Copies of electronic
objections and hearing requests will also
be accepted on disks in WordPerfect
6.1/8.0 or ASCII file format. Do not
include any CBI in your electronic copy.
You may also submit an electronic copy
of your request at many Federal
Depository Libraries.
B. When Will the Agency Grant a
Request for a Hearing?
A request for a hearing will be granted
if the Administrator determines that the
material submitted shows the following:
There is a genuine and substantial issue
of fact; there is a reasonable possibility
that available evidence identified by the
requestor would, if established resolve
one or more of such issues in favor of
the requestor, taking into account
uncontested claims or facts to the
contrary; and resolution of the factual
issues(s) in the manner sought by the
requestor would be adequate to justify
the action requested (40 CFR 178.32).
VII. 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 due to its lack of
significance, 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). 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., or 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). 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); or OMB review or any Agency
action under Executive Order 13045,
entitled Protection of Children from
Environmental Health Risks and Safety
Risks (62 FR 19885, April 23, 1997).
This action does not involve any
technical standards that would require
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Fmt 4700
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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). 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. In addition, the
Agency has determined that this action
will not have a substantial direct effect
on States, on the relationship between
the national government and the States,
or on the distribution of power and
responsibilities among the various
levels of government, as specified in
Executive Order 13132, entitled
Federalism (64 FR 43255, August 10,
1999). Executive Order 13132 requires
EPA to develop an accountable process
to ensure ‘‘meaningful and timely input
by State and local officials in the
development of regulatory policies that
have federalism implications.’’ ‘‘Policies
that have federalism implications’’ is
defined in the Executive Order to
include regulations that have
‘‘substantial direct effects on the States,
on the relationship between the national
government and the States, or on the
distribution of power and
responsibilities among the various
levels of government.’’ This final rule
directly regulates growers, food
processors, food handlers and food
retailers, not States. This action does not
alter the relationships or distribution of
power and responsibilities established
by Congress in the preemption
provisions of section 408(n)(4) of
FFDCA. For these same reasons, the
Agency has determined that this rule
does not have any ‘‘tribal implications’’
as described in Executive Order 13175,
entitled Consultation and Coordination
with Indian Tribal Governments (65 FR
67249, November 6, 2000). Executive
Order 13175, requires EPA to develop
an accountable process to ensure
‘‘meaningful and timely input by tribal
officials in the development of
regulatory policies that have tribal
implications.’’ ‘‘Policies that have tribal
implications’’ is defined in the
Executive Order to include regulations
that have ‘‘substantial direct effects on
one or more Indian tribes, on the
relationship between the Federal
Government and the Indian tribes, or on
the distribution of power and
responsibilities between the Federal
Government and Indian tribes.’’ This
rule will not have substantial direct
E:\FR\FM\23MRR1.SGM
23MRR1
Federal Register / Vol. 70, No. 55 / Wednesday, March 23, 2005 / Rules and Regulations
effects on tribal governments, on the
relationship between the Federal
Government and Indian tribes, or on the
distribution of power and
responsibilities between the Federal
Government and Indian tribes, as
specified in Executive Order 13175.
Thus, Executive Order 13175 does not
apply to this rule.
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).
VIII. Congressional Review Act
List of Subjects in 40 CFR Part 180
The Congressional Review Act, 5
U.S.C. 801 et seq., as added by the Small
Business Regulatory Enforcement
Fairness Act of 1996, generally provides
that before a rule may take effect, the
agency promulgating the rule must
submit a rule report, which includes a
copy of the rule, to each House of the
Congress and to the Comptroller General
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
Dated: March 14, 2005.
Lois Rossi,
Director, Registration Division, Office of
Pesticide Programs.
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 180.571 is amended by
alphabetically adding the following
commodities to the table in paragraph (a)
to read as follows:
I
§ 180.571 Mesotrione; tolerances for
residues.
(a) * * *
Commodity
Parts per million
*
*
*
*
Corn, sweet, forage .................................................................................................
Corn, sweet, kernel plus cob with husks removed .................................................
Corn, sweet, stover ..................................................................................................
*
*
*
*
*
BILLING CODE 6560–50–S
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[OPP–2005–0011; FRL–7699–3]
Thiophanate-methyl; Pesticide
Tolerances for Emergency Exemptions
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
SUMMARY: This regulation establishes
time-limited tolerances for combined
residues of thiophanate-methyl and its
metabolite methyl 2-benzimidazoyl
carbamate (MBC) in or on cotton and
cotton, gin byproducts. This action is in
response to EPA’s granting of an
emergency exemption under section 18
of the Federal Insecticide, Fungicide,
and Rodenticide Act (FIFRA)
authorizing use of the pesticide on
cotton. This regulation establishes a
maximum permissible level for residues
of thiophanate-methyl in these feed
commodities. These tolerances will
expire and are revoked on December 31,
2007.
DATES: This regulation is effective
March 23, 2005. Objections and requests
for hearings must be received on or
before May 23, 2005.
VerDate jul<14>2003
14:14 Mar 22, 2005
*
0.5
0.01
1.5
To submit a written
objection or hearing request follow the
detailed instructions as provided in
Unit VII. of the SUPPLEMENTARY
INFORMATION. EPA has established a
docket for this action under docket
identification (ID) number OPP–2005–
0011. All documents in the docket are
listed in the EDOCKET index at http:/
/www.epa.gov/edocket. Although listed
in the index, some information is not
publicly available, i.e., 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 either
electronically in EDOCKET or in hard
copy at the Public Information and
Records Integrity Branch (PIRIB), Rm.
119, Crystal Mall #2, 1801 S. Bell St.,
Arlington, VA. This docket facility is
open from 8:30 a.m. to 4 p.m., Monday
through Friday, excluding legal
holidays. The docket telephone number
is (703) 305–5805.
ADDRESSES:
[FR Doc. 05–5719 Filed 3–22–05; 8:45 am]
Jkt 205001
14551
FOR FURTHER INFORMATION CONTACT:
Barbara Madden, Registration Division
(7505C), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001; telephone number:
(703) 305–6463; e-mail address:
madden.barbara@epa.gov.
SUPPLEMENTARY INFORMATION:
PO 00000
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I. General Information
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:
• Crop production (NAICS 111)
• Animal production (NAICS 112)
• Food manufacturing (NAICS 311)
• Pesticide manufacturing (NAICS
32532)
This listing is not intended to be
exhaustive, but rather provides 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. To determine whether
you or your business may be affected by
this action, you should carefully
examine the applicability provisions
discussed above. If you have any
questions regarding the applicability of
this action to a particular entity, consult
the person listed under FOR FURTHER
INFORMATION CONTACT.
How Can I Access Electronic Copies of
this Document and Other Related
Information?
In addition to using EDOCKET (http:/
/www.epa.gov/edocket/), you may
access this Federal Register document
electronically through the EPA Internet
under the ‘‘Federal Register’’ listings at
E:\FR\FM\23MRR1.SGM
23MRR1
Agencies
[Federal Register Volume 70, Number 55 (Wednesday, March 23, 2005)]
[Rules and Regulations]
[Pages 14546-14551]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-5719]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[OPP-2005-0049; FRL-7703-1]
Mesotrione; Pesticide Tolerance
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes tolerances for residues of
mesotrione in or on sweet corn. Syngenta Crop Protection Inc. requested
these tolerances under the Federal Food, Drug, and Cosmetic Act
(FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA).
DATES: This regulation is effective March 23, 2005. Objections and
requests for hearings must be received on or before May 23, 2005.
ADDRESSES: To submit a written objection or hearing request follow the
detailed instructions as provided in Unit VI. of the SUPPLEMENTARY
INFORMATION. EPA has established a docket for this action under docket
identification (ID) number OPP-2005-0049. All documents in the docket
are listed in the EDOCKET index at https://www.epa.gov/edocket. Although
listed in the index, some information is not publicly available, i.e.,
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 either electronically
in EDOCKET or in hard copy at the Public Information and Records
Integrity Branch (PIRIB), Rm. 119, Crystal Mall 2, 1801 S.
Bell St., Arlington, VA. This docket facility is open from 8:30 a.m. to
4 p.m., Monday through Friday, excluding legal holidays. The docket
telephone number is (703) 305-5805.
FOR FURTHER INFORMATION CONTACT: Joanne Miller, Registration Division
(7505C), Office of Pesticide Programs, Environmental Protection Agency,
1200 Pennsylvania Ave., NW., Washington, DC 20460; telephone number:
(703)
[[Page 14547]]
305-6224; and e-mail address: miller.joanne@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:
Crop production (NAICS 111), e.g., agricultural workers;
greenhouse, nursery, and floriculture workers; farmers.
Animal production (NAICS 112), e.g., cattle ranchers and
farmers, dairy cattle farmers, livestock farmers.
Food manufacturing (NAICS 311), e.g., agricultural
workers; farmers; greenhouse, nursery, and floriculture workers;
ranchers; pesticide applicators.
Pesticide manufacturing (NAICS 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 provides
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 and Other
Related Information?
In addition to using EDOCKET (https://www.epa.gov/edocket/), you may
access this Federal Register document electronically through the EPA
Internet under the ``Federal Register'' listings at https://www.epa.gov/
fedrgstr/. A frequently updated electronic version of 40 CFR part 180
is available at E-CFR Beta Site Two at https://www.gpoaccess.gov/ecfr/.
To access the OPPTS Harmonized Guidelines referenced in this document,
go directly to the guidelines at https://www.epa.gpo/opptsfrs/home/
guidelin.htm/.
II. Background and Statutory Findings
In the Federal Register of August 7, 2002 (67 FR 152) (FRL-7186-5),
EPA issued a notice pursuant to section 408(d)(3) of FFDCA, 21 U.S.C.
346a(d)(3), announcing the filing of a pesticide petition (2F6443) by
Syngenta Crop Protection Inc., 410 Swing Road, PO Box 18300,
Greensboro, NC 27419-8300. The petition requested that 40 CFR 180.571
be amended by establishing tolerances for residues of the herbicide
mesotrione, 2-[4-(methylsulfonyl)-2-nitrobenzoyl]-1,3-cyclohexanedione,
in or on the raw agricultural commodities (RACs) sweet corn ears, sweet
corn forage, and sweet corn stover at 0.01, 0.50, and 2.0 parts per
million (ppm); respectively. That notice included a summary of the
petition prepared by Syngenta Crop Protection Inc., the registrant.
There were no comments received in response to the notice of filing.
The tolerances for sweet corn stover is corrected to 1.5 ppm to reflect
the submitted residue data. Sweet corn ears is corrected to sweet corn
kernel plus cob with husks removed.
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. . .
.''
EPA performs a number of analyses to determine the risks from
aggregate exposure to pesticide residues. For further discussion of the
regulatory requirements of section 408 of FFDCA and a complete
description of the risk assessment process, see the final rule on
Bifenthrin Pesticide Tolerances of November 26, 1997 (62 FR 62961)
(FRL-5754-7).
III. Aggregate Risk Assessment and Determination of Safety
Consistent with section 408(b)(2)(D) of FFDCA, 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, consistent with section
408(b)(2) of FFDCA, for tolerances for residues of mesotrione on sweet
corn kernel plus cob with husks removed, sweet corn forage, and sweet
corn stover at 0.01, 0.50, and 1.5 ppm; respectively. 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. The nature of the toxic effects caused by mesotrione as well
as the no observed adverse effect level (NOAEL) and the lowest observed
adverse effect level (LOAEL) from the toxicity studies reviewed are
discussed in the Federal Register of June 21, 2001 (66 FR 33187) (FRL-
6787-7).
B. Toxicological Endpoints
A summary of the toxicological endpoints for mesotrione used for
human risk assessment is discussed in Unit III.B. of the final rule
published in the Federal Register of June 21, 2001 (66 FR 33187) (FRL-
67877).
C. Exposure Assessment
1. Dietary exposure from food and feed uses. Tolerances have been
established (40 CFR 180.571) for the residues of mesotrione, in or on a
variety of RACs. Risk assessments were conducted by EPA to assess
dietary exposures from mesotrione in food as follows:
i. Acute exposure. Acute dietary 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 one day
or single exposure. No appropriate study available shows any acute
dietary effects of concern.
ii. Chronic exposure. In conducting this chronic dietary risk
assessment the Dietary Exposure Evaluation Model (DEEM\TM\) analysis
evaluated the individual food consumption as reported by respondents in
the United States Department of Agriculture (USDA) 1989-1992 nationwide
Continuing Surveys of Food Intake by Individuals (CSFII) and
accumulated exposure to the chemical for each commodity. The following
assumptions were made for the chronic exposure assessments: Residue
levels are at the recommended tolerances for field corn, popcorn, sweet
corn and cranberries
[[Page 14548]]
and 100% of the crops are treated with mesotrione. The %cPAD for the
general U.S. population is 3% and for the most sensitive population
subgroups, children 3-5 years old, is 7% of the cPAD.
iii. Cancer. Acceptable oral rat and mouse carcinogenicity studies
showed no evidence of carcinogenic or mutagenic potential. Therefore,
no exposure assessment is needed to access cancer risk.
2. Dietary exposure from drinking water. The Agency lacks
sufficient monitoring exposure data to complete a comprehensive dietary
exposure analysis and risk assessment for mesotrione 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 physical
characteristics of mesotrione.
The Agency uses the Generic Estimated Environmental Concentration
(GENEEC) or the Pesticide Root Zone Model/Exposure Analysis Modeling
System (PRZM/EXAMS) to estimate pesticide concentrations in surface
water and SCI-GROW, which predicts pesticide concentrations in ground
water. In general, EPA will use GENEEC (a Tier 1 model) before using
PRZM/EXAMS (a Tier 2 model) for a screening-level assessment for
surface water. The GENEEC model is a subset of the PRZM/EXAMS model
that uses a specific high-end runoff scenario for pesticides. GENEEC
incorporates a farm pond scenario, while PRZM/EXAMS incorporate an
index reservoir environment in place of the previous pond scenario. The
PRZM/EXAMS model includes a percent crop (PC) area factor as an
adjustment to account for the maximum percent crop coverage within a
watershed or drainage basin.
None of these models include consideration of the impact processing
(mixing, dilution, or treatment) of raw water for distribution as
drinking water would likely have on the removal of pesticides from the
source water. The primary use of these models by the Agency at this
stage is to provide a screen for sorting out pesticides for which it is
unlikely that drinking water concentrations would exceed human health
levels of concern.
Since the models used are considered to be screening tools in the
risk assessment process, the Agency does not use estimated
environmental concentrations (EECs), which are the model estimates of a
pesticide's concentration in water. EECs derived from these models are
used to quantify drinking water exposure and risk as a percent
reference dose (%RfD) or percent adjusted dose (%PAD). Instead drinking
water levels of comparison (DWLOCs) are calculated and used as a point
of comparison against the model estimates of a pesticide's
concentration in water. DWLOCs are theoretical upper limits on a
pesticide's concentration in drinking water in light of total aggregate
exposure to a pesticide in food, and from residential uses. Since
DWLOCs address total aggregate exposure to mesotrione they are further
discussed in the aggregate risk sections in Unit E.
Based on the GENEEC and SCI-GROW models, the EECs of mesotrione for
acute exposures are estimated to be 20 parts per billion (ppb) for
surface water and 0.15 ppb for ground water. The EECs for chronic
exposures are estimated to be 4.3 ppb for surface water and 0.15 ppb
for ground 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).
Mesotrione is not registered for use on any sites that would result
in residential exposure.
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 mesotrione and any other
substances and mesotrione 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 mesotrione has a common
mechanism of toxicity with other substances. For information regarding
EPA's efforts to determine which chemicals have a common mechanism of
toxicity and to evaluate the cumulative effects of such chemicals, see
the policy statements released by EPA concerning common mechanism
determinations and procedures for cumulating effects from substances
found to have a common mechanism on EPA's web site at https://
www.epa.gov/pesticides/cumulative/.
D. Safety Factor for Infants and Children
1. In general. Section 408 of FFDCA provides that EPA shall apply
an additional 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 data base on toxicity and exposure
unless EPA determines based on reliable data that a different margin of
safety will be safe for infants and children. Margins of safety are
incorporated into EPA risk assessments either directly through use of a
margin of exposure (MOE) analysis or through using uncertainty (safety)
factors in calculating a dose level that poses no appreciable risk to
humans. 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 safety factor value based on the use of
traditional uncertainty factors and/or special FQPA safety factors, as
appropriate.
2. Prenatal and postnatal sensitivity. There is quantitative
evidence of increased susceptibility demonstrated in the oral prenatal
developmental toxicity studies in rats, mice, and rabbits. Delayed
ossification was seen in the fetuses at doses below those at which
maternal toxic effects were noted. Maternal toxic effects in the rat
were decreased body weight gain during treatment and decreased food
consumption and in the rabbit, abortions and gastrointestinal effects.
3. Conclusion. The FQPA safety factor (10x) is retained in
assessing the risk posed because there is quantitative evidence of
increased susceptibility of the young exposed to mesotrione in the
prenatal developmental toxicity studies in mice, rats, and rabbits and
in the multi-generation reproduction study in mice, there is
qualitative evidence of increased susceptibility of the young exposed
to mesotrione in the multi-generation reproduction study in rats; and a
developmental neurotoxicity study is required to assess the effects of
tyrosinemia on the developing nervous system exposed to mesotrione.
E. Aggregate Risks and Determination of Safety
To estimate total aggregate exposure to a pesticide from food,
drinking water, and residential uses, the Agency calculates DWLOCs
which are used as a point of comparison against EECs. DWLOC values are
not regulatory standards for drinking water. DWLOCs are theoretical
upper limits on a
[[Page 14549]]
pesticide's concentration in drinking water in light of total aggregate
exposure to a pesticide in food and residential uses. In calculating a
DWLOC, the Agency determines how much of the acceptable exposure (i.e.,
the PAD) is available for exposure through drinking water e.g.,
allowable chronic water exposure (mg/kg/day) = cPAD - (average food +
residential exposure). This allowable exposure through drinking water
is used to calculate a DWLOC.
A DWLOC will vary depending on the toxic endpoint, drinking water
consumption, and body weights. Default body weights and consumption
values as used by the EPA's Office of Water are used to calculate
DWLOCs: 2 liter (L)/70 kg (adult male), 2L/60 kg (adult female), and
1L/10 kg (child). Default body weights and drinking water consumption
values vary on an individual basis. This variation will be taken into
account in more refined screening-level and quantitative drinking water
exposure assessments. Different populations will have different DWLOCs.
Generally, a DWLOC is calculated for each type of risk assessment used:
Acute, short-term, intermediate-term, chronic, and cancer.
When EECs for surface water and ground water are less than the
calculated DWLOCs, EPA concludes with reasonable certainty that
exposures to the pesticide in drinking water (when considered along
with other sources of exposure for which EPA has reliable data) would
not result in unacceptable levels of aggregate human health risk at
this time. Because EPA considers the aggregate risk resulting from
multiple exposure pathways associated with a pesticide's uses, levels
of comparison in drinking water may vary as those uses change. If new
uses are added in the future, EPA will reassess the potential impacts
of residues of the pesticide in drinking water as a part of the
aggregate risk assessment process.
1. Acute risk. Acute doses and endpoints were not identified for
the general U.S. population (including infants and children) or the
females 13-50 years old population subgroup for mesotrione; therefore,
mesotrione is not expected to pose an acute dietary risk.
2. Chronic risk. Using the exposure assumptions described in this
unit for chronic exposure, EPA has concluded that exposure to
mesotrione from food will utilize 3% of the cPAD for the U.S.
population, 4% of the cPAD for all infants (> 1 year old), and 7% of
the cPAD for children 3-5 years old. There are no residential uses for
mesotrione that result in chronic residential exposure to mesotrione.
After calculating DWLOCs and comparing them to the EECs for surface and
ground water, EPA does not expect the aggregate exposure to exceed 100%
of the cPAD, as shown in following Table 1:
Table 1.--Aggregate Risk Assessment for Chronic (Non- Cancer) Exposure to mesotrione
----------------------------------------------------------------------------------------------------------------
Surface Ground
Population Subgroup cPAD mg/kg/ %cPAD Water EEC Water EEC Chronic
day (Food) (ppb) (ppb) DWLOC (ppb)
----------------------------------------------------------------------------------------------------------------
U.S. population 0.0007 3 4.3 0.15 24
----------------------------------------------------------------------------------------------------------------
All infants (> 1 year old) 0.0 007 4 4.3 0.15 6.7
----------------------------------------------------------------------------------------------------------------
Children (3-5 years old) 0.0007 7 4.3 0.15 6.5
----------------------------------------------------------------------------------------------------------------
3. Short-term risk + intermediate-term risk. Short-term +
intermediate-term aggregate exposure takes into account residential
exposure plus chronic exposure to food and water (considered to be a
background exposure level).
Mesotrione is not registered for use on any sites that would result
in residential exposure. Therefore, the aggregate risk is the sum of
the risk from food and water, which do not exceed the Agency's level of
concern.
4. 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, and to infants and children from aggregate
exposure to mesotrione residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodology (gas chromatography) 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 no CODEX, Canadian, or Mexican tolerances/Maximum Residue
Levels for mesotrione residues. Thus, harmonization is not an issue at
this time.
C. Conditions
Conversion of the mesotrione registration to unconditional under
section 3(c)(5) of Federal Insecticide and Fungicide Act (FIFRA) as
amended may be considered upon submission of developmental
neurotoxicity study in the mouse, and an 28-day inhalation study.
V. Conclusion
Therefore, the tolerances are established for residues of
mesotrione, 2-[4-(methylsulfonyl)-2-nitrobenzoyl]-1,3-cyclohexanedione,
in or on the RACs sweet corn kernel plus cob with husks removed, sweet
corn forage, and sweet corn stover at 0.01, 0.50, and 1.5 ppm;
respectively.
VI. Objections and Hearing Requests
Under section 408(g) of FFDCA, as amended by FQPA, any person may
file an objection to any aspect of this regulation and may also request
a hearing on those objections. The EPA procedural regulations which
govern the submission of objections and requests for hearings appear in
40 CFR part 178. Although the procedures in those regulations require
some modification to reflect the amendments made to FFDCA by FQPA, EPA
will continue to use those procedures, with appropriate adjustments,
until the necessary modifications can be made. The new section 408(g)
of FFDCA provides essentially the same process for persons to
``object'' to a regulation for an exemption from the requirement of a
tolerance issued by EPA under new section 408(d) of FFDCA, as was
provided in the old sections 408 and 409 of FFDCA. However, the period
for filing objections is now 60-days, rather than 30-days.
[[Page 14550]]
A. What Do I Need to Do to File an Objection or Request a Hearing?
You must file your objection or request a hearing on this
regulation in accordance with the instructions provided in this unit
and in 40 CFR part 178. To ensure proper receipt by EPA, you must
identify docket ID number OPP-2005-0049 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 on or before May 23,
2005.
1. Filing the request. Your objection must specify the specific
provisions in the regulation that you object to, and the grounds for
the objections (40 CFR 178.25). If a hearing is requested, the
objections must include a statement of the factual issues(s) on which a
hearing is requested, the requestor's contentions on such issues, and a
summary of any evidence relied upon by the objector (40 CFR 178.27).
Information submitted in connection with an objection or hearing
request may be claimed confidential by marking any part or all of that
information as CBI. Information so marked will not be disclosed except
in accordance with procedures set forth in 40 CFR part 2. A copy of the
information that does not contain CBI must be submitted for inclusion
in the public record. Information not marked confidential may be
disclosed publicly by EPA without prior notice.
Mail your written request to: Office of the Hearing Clerk (1900L),
Environmental Protection Agency, 1200 Pennsylvania Ave., NW.,
Washington, DC 20460-0001. You may also deliver your request to the
Office of the Hearing Clerk in Suite 350, 1099 14th St., NW.,
Washington, DC 20005. The Office of the Hearing Clerk is open from 8
a.m. to 4 p.m., Monday through Friday, excluding legal holidays. The
telephone number for the Office of the Hearing Clerk is (202) 564-6255.
2. Copies for the Docket. In addition to filing an objection or
hearing request with the Hearing Clerk as described in Unit VI.A., you
should also send a copy of your request to the PIRIB for its inclusion
in the official record that is described in ADDRESSES. Mail your
copies, identified by docket ID number OPP-2005-0049, to: Public
Information and Records Integrity Branch, Information Resources and
Services Division (7502C), Office of Pesticide Programs, Environmental
Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-
0001. In person or by courier, bring a copy to the location of the
PIRIB described in ADDRESSES. You may also send an electronic copy of
your request via e-mail to: opp-docket@epa.gov. Please use an ASCII
file format and avoid the use of special characters and any form of
encryption. Copies of electronic objections and hearing requests will
also be accepted on disks in WordPerfect 6.1/8.0 or ASCII file format.
Do not include any CBI in your electronic copy. You may also submit an
electronic copy of your request at many Federal Depository Libraries.
B. When Will the Agency Grant a Request for a Hearing?
A request for a hearing will be granted if the Administrator
determines that the material submitted shows the following: There is a
genuine and substantial issue of fact; there is a reasonable
possibility that available evidence identified by the requestor would,
if established resolve one or more of such issues in favor of the
requestor, taking into account uncontested claims or facts to the
contrary; and resolution of the factual issues(s) in the manner sought
by the requestor would be adequate to justify the action requested (40
CFR 178.32).
VII. 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 due to its lack of
significance, 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). 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., or 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). 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); or OMB review or any Agency action under Executive
Order 13045, entitled Protection of Children from Environmental Health
Risks and Safety Risks (62 FR 19885, April 23, 1997). 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). 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. In addition, the Agency has determined that this
action will not have a substantial direct effect on States, on the
relationship between the national government and the States, or on the
distribution of power and responsibilities among the various levels of
government, as specified in Executive Order 13132, entitled Federalism
(64 FR 43255, August 10, 1999). Executive Order 13132 requires EPA to
develop an accountable process to ensure ``meaningful and timely input
by State and local officials in the development of regulatory policies
that have federalism implications.'' ``Policies that have federalism
implications'' is defined in the Executive Order to include regulations
that have ``substantial direct effects on the States, on the
relationship between the national government and the States, or on the
distribution of power and responsibilities among the various levels of
government.'' This final rule directly regulates growers, food
processors, food handlers and food retailers, not States. This action
does not alter the relationships or distribution of power and
responsibilities established by Congress in the preemption provisions
of section 408(n)(4) of FFDCA. For these same reasons, the Agency has
determined that this rule does not have any ``tribal implications'' as
described in Executive Order 13175, entitled Consultation and
Coordination with Indian Tribal Governments (65 FR 67249, November 6,
2000). Executive Order 13175, requires EPA to develop an accountable
process to ensure ``meaningful and timely input by tribal officials in
the development of regulatory policies that have tribal implications.''
``Policies that have tribal implications'' is defined in the Executive
Order to include regulations that have ``substantial direct effects on
one or more Indian tribes, on the relationship between the Federal
Government and the Indian tribes, or on the distribution of power and
responsibilities between the Federal Government and Indian tribes.''
This rule will not have substantial direct
[[Page 14551]]
effects on tribal governments, on the relationship between the Federal
Government and Indian tribes, or on the distribution of power and
responsibilities between the Federal Government and Indian tribes, as
specified in Executive Order 13175. Thus, Executive Order 13175 does
not apply to this rule.
VIII. Congressional Review Act
The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the
Small Business Regulatory Enforcement Fairness Act of 1996, generally
provides that before a rule may take effect, the agency promulgating
the rule must submit a rule report, which includes a copy of the rule,
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: March 14, 2005.
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. Section 180.571 is amended by alphabetically adding the following
commodities to the table in paragraph (a) to read as follows:
Sec. 180.571 Mesotrione; tolerances for residues.
(a) * * *
----------------------------------------------------------------------------------------------------------------
Commodity Parts per million
----------------------------------------------------------------------------------------------------------------
* * * * *
Corn, sweet, forage................................... 0.5
Corn, sweet, kernel plus cob with husks removed....... 0.01
Corn, sweet, stover................................... 1.5
----------------------------------------------------------------------------------------------------------------
* * * * *
[FR Doc. 05-5719 Filed 3-22-05; 8:45 am]
BILLING CODE 6560-50-S