Spiromesifen; Pesticide Tolerance, 3075-3079 [E7-990]
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ARIZONA—SO2—Continued
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[FR Doc. E7–996 Filed 1–23–07; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2006–0667; FRL–8110–3]
Spiromesifen; Pesticide Tolerance
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
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Does not meet
secondary
standards
SUMMARY: This regulation revises a
tolerance for combined residues of
spiromesifen in or on vegetables,
fruiting, group 8 and establishes
tolerances for inadvertent or indirect
combined residues in or on oat (grain,
forage, hay, straw). Interregional
Research Project No. 4 (IR–4) and Bayer
CropScience (respectively) 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
January 24, 2007. Objections and
requests for hearings must be received
on or before March 26, 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–2006–0667. All documents in the
docket are listed in the index for the
docket. 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
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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 Building),
2777 S. Crystal Drive, Arlington, VA.
The 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:
Thomas C. Harris, Registration Division
(7505P), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001; telephone number:
(703) 308–9423; e-mail address:
harris.thomas@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
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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 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, as
amended by the 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.
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–2006–0667 in the subject line on
the first page of your submission. All
requests must be in writing, and must be
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mailed or delivered to the Hearing Clerk
on or before March 26, 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 your
copies, identified by docket ID number
EPA–HQ–OPP–2006–0667, 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 Building), 2777 S.
Crystal Drive, 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 telephone number is (703) 305–
5805.
II. Background and Statutory Findings
In the Federal Register of September
13, 2006 (71 FR 54057) (FRL–8091–7),
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 (PP 5E6901) by
Interregional Research Project No. 4 (IR4), Rutgers, The State University of New
Jersey, 500 College Road East, Suite 201,
Princeton, NJ 08540. The petition
requested that 40 CFR 180.607 be
amended by revising a tolerance for
combined residues of the insecticide/
miticide spiromesifen (2-oxo-3-(2,4,6trimethylphenyl)-1-oxaspiro[4.4]non-3en-4-yl 3,3-dimethylbutanoate) and its
enol metabolite (4-hydroxy-3-(2,4,6trimethylphenyl)-1-oxaspiro[4.4]non-3en-2-one), calculated as the parent
compound equivalents, in or on
vegetable, fruiting, crop group 8 from
0.30 to 0.45 parts per million (ppm).
The same notice also announced the
filing of a pesticide petition (PP 6F7039)
by Bayer CropScience, 2 T.W.
Alexander Drive, Research Triangle
Park, NC 27709. That petition requested
that 40 CFR 180.607 be amended by
establishing a tolerance for inadvertent
or indirect combined residues of the
insecticide/miticide spiromesifen (2-
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oxo-3-(2,4,6-trimethylphenyl)-1oxaspiro[4.4]non-3-en-4-yl 3,3dimethylbutanoate), its enol metabolite
(4-hydroxy-3-(2,4,6-trimethylphenyl)-1oxaspiro[4.4]non-3-en-2-one), and its
metabolites containing the 4hydroxymethyl moiety (4-hydroxy-3-[4(hydroxymethyl)-2,6-dimethylphenyl]1-oxaspiro[4.4]non-3-en-2-one),
calculated as the parent compound
equivalents, in or on oat, forage; oat,
fodder; and oat, straw at 0.25 ppm and
in or on the food commodity oat, grain
at 0.03 ppm. The notice included
summaries of the petitions prepared by
Bayer CropScience, the registrant.
Comments were received on the notice
of filing from one private citizen. EPA’s
response to these comments is
discussed in Unit IV.C.
Based on the EPA analysis of the
residue chemistry and toxicological
databases, petition PP 6F7039 was
subsequently revised to express the oat
tolerances as inadvertent or indirect
combined residues of the insecticide/
miticide spiromesifen (2-oxo-3-(2,4,6trimethylphenyl)-1-oxaspiro[4.4]non-3en-4-yl 3,3-dimethylbutanoate), its enol
metabolite (4-hydroxy-3-(2,4,6trimethylphenyl)-1-oxaspiro[4.4]non-3en-2-one), and its metabolites
containing the 4-hydroxymethyl moiety
(4-hydroxy-3-[4-(hydroxymethyl)-2,6dimethylphenyl]-1-oxaspiro[4.4]non-3en-2-one), calculated as the parent
compound equivalents, in or on oat,
forage at 0.20 ppm; oat, grain at 0.03
ppm; oat, hay at 0.25 ppm; and oat,
straw at 0.25 ppm.
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
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requirements of section 408 of the
FFDCA and a complete description of
the risk assessment process, see https://
www.epa.gov/fedrgstr/EPA-PEST/1997/
November/Day-26/p30948.htm and
https://www.epa.gov/fedrgstr/EPA-PEST/
2003/July/Day-30/p19357.htm.
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 a tolerance for combined
residues of the insecticide/miticide
spiromesifen and its enol metabolite, in
or on vegetable, fruiting, crop group 8 at
0.45 ppm and the inadvertent or
indirect combined residues of the
insecticide/miticide spiromesifen and
its enol metabolite, in or on oat, forage
at 0.20 ppm; oat, grain at 0.03 ppm; oat,
hay at 0.25 ppm; and oat, straw at 0.25
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 toxic effects caused by
spiromesifen as well as the no-observedadverse-effect-level (NOAEL) and the
lowest-observed-adverse-effect-level
(LOAEL) from the toxicity studies can
be found in Unit III.A. of the final rule
published in the Federal Register of
April 27, 2005 (70 FR 21631) (FRL–
7705–1) at https://www.epa.gov/fedrgstr/
EPAFR-CONTENTS/2005/April/Day-27/
contents.htm.
B. Toxicological Endpoints
For hazards that have a threshold
below which there is no appreciable
risk, the dose at which no adverse
effects are observed (the NOAEL) from
the toxicology study identified as
appropriate for use in risk assessment is
used to estimate the toxicological level
of concern (LOC). However, the lowest
dose at which adverse effects of concern
are identified (the LOAEL) is sometimes
used for risk assessment if no NOAEL
was achieved in the toxicology study
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selected. An uncertainty factor (UF) is
applied to reflect 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.
The linear default risk methodology
(Q*) is the primary method currently
used by the Agency to quantify nonthreshold hazards such as cancer. The
Q* approach assumes that any amount
of exposure will lead to some degree of
cancer risk and estimates risk in terms
of the probability of occurrence of
additional cancer cases. More
information can be found on the general
principles EPA uses in risk
characterization at https://www.epa.gov/
pesticides/health/human.htm.
A summary of the toxicological
endpoints for spiromesifen used for
human risk assessment is discussed in
Unit III.B. of the final rule published in
the Federal Register of April 27, 2005
(70 FR 21631) (FRL–7705–1) at https://
www.epa.gov/fedrgstr/EPAFRCONTENTS/2005/April/Day-27/
contents.htm.
C. Exposure Assessment
1. Dietary exposure from food and
feed uses. Tolerances have been
established (40 CFR 180.607) for the
combined residues of spiromesifen, in
or on a variety of raw agricultural
commodities. In addition, tolerances
have been established for combined
residues on several livestock (cattle,
goat, horse, sheep) commodities which
feed on these raw agricultural
commodities and for inadvertent or
indirect combined residues on some
rotational crop (alfalfa, barley, sugar
beet, wheat) commodities. Risk
assessments were conducted by EPA to
assess dietary exposures from
spiromesifen in food as follows:
i. Acute exposure. Quantitative acute
dietary exposure and risk assessments
are performed for a food-use pesticide if
a toxicological study has indicated the
possibility of an effect of concern
occurring as a result of a 1–day or single
exposure.
No such effects were identified in the
toxicological studies for spiromesifen.
Therefore, a quantitative acute dietary
exposure assessment is unnecessary.
ii. Chronic exposure. In conducting
the chronic dietary exposure assessment
EPA used the Dietary Exposure
Evaluation Model software with the
Food Commodity Intake Database
(DEEM-FCIDTM), which incorporates
food consumption data as reported by
respondents in the USDA 1994–1996
and 1998 Nationwide Continuing
Surveys of Food Intake by Individuals
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(CSFII), and accumulated exposure to
the chemical for each commodity. The
following assumptions were made for
the chronic exposure assessments: (1)
Established/recommended tolerances
for all plant and livestock except the
leafy-green and leafy-Brassica vegetable
subgroups; (2) EPA calculated residues
of concern (parent and metabolites) for
the leafy-green and leafy-Brassica
vegetable subgroup; (3) 100% crop
treated (CT) information for all
proposed and existing uses; and (4)
DEEMTM Version 7.81 default
processing factors for all commodities.
The metabolism studies show that the
hydroxymethyl metabolite is formed
along with the enol metabolite only in
the leafy-green and leafy-Brassica
vegetable subgroups. EPA determined
that these two metabolites along with
the spiromesifen should be included in
the chronic dietary risk assessment for
these crops. Residue data are
unavailable for the 4-hydroxymethyl
metabolite; to account for this
metabolite in the risk assessment, the
recommended tolerance levels for these
crops was multiplied by a correction
factor of 1.3X, where 1.3 = metabolites
in risk assessment (ppm) / metabolites
in tolerance expression (ppm).
iii. Cancer. A cancer exposure
assessment was not performed because
spiromesifen is classified as ‘‘not likely
to be carcinogenic to humans.’’
2. Dietary exposure from drinking
water. The Agency lacks sufficient
monitoring exposure data to complete a
comprehensive dietary exposure
analysis and risk assessment for
spiromesifen 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
spiromesifen. 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 Pesticide Root Zone
Model/Exposure Analysis Modeling
System (PRZM/EXAMS) and Screening
Concentrations in Groundwater (SCIGROW) models, the estimated
environmental concentrations (EECs) of
spiromesifen for chronic exposures are
estimated to be 11 ppb for surface water
and 28 ppb for ground water. Drinking
water estimates were incorporated
directly into the DEEM-FCIDTM using
the estimated drinking water
concentration generated by the SCIGROW (version 2.3) model of 28 ppb.
3. From non-dietary exposure. The
term ‘‘residential exposure’’ is used in
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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).
Spiromesifen 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 the FFDCA
requires that, when considering whether
to establish, modify, or revoke a
tolerance, the Agency considers
‘‘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
spiromesifen and any other substances
and spiromesifen 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 spiromesifen has a
common mechanism of toxicity with
other substances. For information
regarding EPA’s efforts to determine
which chemicals have a common
mechanism of toxicity and to evaluate
the cumulative effects of such
chemicals, see the policy statements
released by EPA’s Office of Pesticide
Programs concerning common
mechanism determinations and
procedures for cumulating effects from
substances found to have a common
mechanism on EPA’s website at https://
www.epa.gov/pesticides/cumulative.
D. Safety Factor for Infants and
Children
1. In general. Section 408 of FFDCA
provides that EPA shall apply an
additional 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. 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
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factor value based on the use of
traditional uncertainty factors and/or
special FQPA safety factors, as
appropriate.
2. Prenatal and postnatal sensitivity.
There was no evidence of increased
susceptibility of rats or rabbits to in
utero prenatal or postpostnatal exposure
to spiromesifen. In a rat developmental
toxicity study, no developmental
toxicity was observed at doses up to 500
milligrams/kilograms/day (mg/kg/day)
(the highest dose tested) in the presence
of maternal toxicity. The rat maternal
LOAEL was determined to be 70 mg/kg/
day based on decreased body-weight
gain and reduced food consumption. In
the rabbit developmental toxicity study,
there was no developmental toxicity
observed at doses up to 250 mg/kg/day
(the highest dose tested), but the
maternal LOAEL was determined to be
35 mg/kg/day based on body weight loss
and reduced food consumption. There is
no qualitative and/or quantitative
evidence of increased susceptibility to
spiromesifen following pre/postnatal
exposure in a 2–generation reproduction
study in rats.
There is no concern for
developmental neurotoxicity resulting
from exposure to spiromesifen.
Neurotoxic effects such as reduced
motility, spastic gait, increased
reactivity, tremors, clonic-tonic
convulsions, reduced activity, labored
breathing, vocalization, avoidance
reaction, piloerection, limp, cyanosis,
squatted posture, and salivation were
observed in two studies (5–day
inhalation and subchronic oral rat).
However, these effects were considered
as secondary, not neurotoxic, effects due
to the high dosage. There was no
evidence of neurotoxicity in the acute or
subchronic neurotoxicity or any other
studies.
3. Conclusion. For spiromesifen, EPA
determined that the 10X safety factor to
protect infants and children should be
removed. A 1X safety factor is
appropriate because:
• There is a complete toxicity
database for spiromesifen.
• There was no evidence of increased
susceptibility of rat or rabbit fetuses to
in utero exposure in developmental
studies, nor following prenatal or
postnatal exposure by rats in the 2–
generation reproduction study.
• There are no neurotoxicity concerns
based on acute and subchronic
neurotoxicity studies.
• The dietary food exposure
assessment uses proposed tolerance
levels or higher residues for most
commodities and assumed 100% croptreated information for all commodities.
By using these screening-level
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assessments, chronic exposures and
risks will not be underestimated. The
‘‘higher residues’’ are those that were
calculated using a modifying factor to
account for the lack of spiromesifen-4hydroxymethyl residue data.
• The dietary drinking water
assessment (Tier 2 estimates) uses
values generated by model and
associated modeling parameters which
are designed to provide conservative,
health protective, and high-end
estimates of water concentrations.
• Residential exposure is not
expected, spiromesifen will be
registered for agricultural and
greenhouse/ornamental uses only.
E. Aggregate Risks and Determination of
Safety
1. Acute risk. As there were no toxic
effects attributable to a single dose, an
endpoint of concern was not identified
to quantitate acute dietary risk to the
general population or any
subpopulation. No acute risk is
expected from exposure to spiromesifen.
2. Chronic risk. Using the exposure
assumptions described in this unit for
chronic exposure, EPA has concluded
that exposure to spiromesifen from food
and water will utilize 31% of the
chronic population adjusted dose
(cPAD) for the U.S. population, 23% of
the cPAD for all infants less than 1 year
old, and 38% of the cPAD for children
1-2 years old, the most highly exposed
population subgroups. There are no
residential uses for spiromesifen that
result in chronic residential exposure to
spiromesifen. Therefore, EPA does not
expect the aggregate exposure to exceed
100% of the cPAD.
3. Short- and Intermediate-term risk.
Short- and intermediate-term aggregate
exposure takes into account residential
exposure plus chronic exposure to food
and water (considered to be a
background exposure level).
Spiromesifen 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. Aggregate cancer risk for U.S.
population. Spiromesifen is not
expected to pose a cancer risk.
5. 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 spiromesifen
residues.
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IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate analytical enforcement
methodologies, high-performance liquid
chromatography (HPLC)/mass
spectrometry (MS)/MS, exist and have
been successfully validated by
independent laboratories.
B. International Residue Limits
There are no international residue
limits for spiromesifen listed in CODEX.
C. Response to Comments
Several comments were received from
one private citizen objecting to pesticide
body load, registrant profiteering,
establishing tolerances, pollution by
pesticides, and lack of notification when
pesticides are applied to neighboring
areas. The Agency has received similar
comments from this commenter on
numerous previous occasions. Refer to
Federal Register 70 FR 37686 (June 30,
2005), 70 FR 1354 (January 7, 2005), and
69 FR 63096–63098 (October 29, 2004)
for the Agency’s response to these
objections.
V. Conclusion
Therefore, the tolerance is revised for
combined residues of the insecticide/
miticide spiromesifen (2-oxo-3-(2,4,6trimethylphenyl)-1-oxaspiro[4.4]non-3en-4-yl 3,3-dimethylbutanoate) and its
enol metabolite (4-hydroxy-3-(2,4,6trimethylphenyl)-1-oxaspiro[4.4]non-3en-2-one), calculated as the parent
compound equivalents, in or on
vegetable, fruiting, crop group 8 to 0.45
ppm. Also, the tolerance is established
for inadvertent or indirect combined
residues of the insecticide/miticide
spiromesifen (2-oxo-3-(2,4,6trimethylphenyl)-1-oxaspiro[4.4]non-3en-4-yl 3,3-dimethylbutanoate), its enol
metabolite (4-hydroxy-3-(2,4,6trimethylphenyl)-1-oxaspiro[4.4]non-3en-2-one), and its metabolites
containing the 4-hydroxymethyl moiety
(4-hydroxy-3-[4-(hydroxymethyl)-2,6dimethylphenyl]-1-oxaspiro[4.4]non-3en-2-one), calculated as the parent
compound equivalents, in or on oat,
forage at 0.20 ppm; oat, grain at 0.03
ppm; oat, hay at 0.25 ppm; and oat,
straw at 0.25 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,
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rmajette on PROD1PC67 with RULES
Federal Register / Vol. 72, No. 15 / Wednesday, January 24, 2007 / Rules and Regulations
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
VerDate Aug<31>2005
15:02 Jan 23, 2007
Jkt 211001
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
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.
VII. Congressional Review Act
Dated: January 17, 2007.
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 180.607 is amended in the
table to paragraph (a)(1) by revising the
entry for ‘‘Vegetable, fruiting group 8’’
and in the table to paragraph (d) by
adding alphabetically commodities to
read as follows:
I
§180.607 Spiromesifen; tolerances for
residues.
(a) General. (1) * * *
Parts per
million
Commodity
*
*
*
*
Vegetable, fruiting, group 8 ......
*
*
*
*
*
*
*
(d) * * *
*
0.45
*
*
Commodity
Oat,
Oat,
Oat,
Oat,
*
Parts per
million
*
*
*
*
forage ................................
grain ..................................
hay ....................................
straw .................................
*
*
*
*
*
0.20
0.03
0.25
0.25
*
[FR Doc. E7–990 Filed 1–23–07; 8:45 am]
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).
BILLING CODE 6560–50–S
List of Subjects in 40 CFR Part 180
SUMMARY: This Final Rule sets forth the
Secretary’s proposal to require HTPC
grant recipients to contribute nonFederal matching funds in years 2
through 5 of the project period equal to
two times the amount of the Federal
Grant Award or such lesser amount
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
PO 00000
Frm 00055
Fmt 4700
Sfmt 4700
DEPARTMENT OF HEALTH AND
HUMAN SERVICES
Health Resources and Services
Administration
42 CFR Part 51a
RIN # 0906–AA70
Healthy Tomorrows Partnership for
Children Program (HTPC)
Health Resources and Services
Administration (HRSA), HHS.
ACTION: Final rule.
AGENCY:
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Agencies
[Federal Register Volume 72, Number 15 (Wednesday, January 24, 2007)]
[Rules and Regulations]
[Pages 3075-3079]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-990]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2006-0667; FRL-8110-3]
Spiromesifen; Pesticide Tolerance
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation revises a tolerance for combined residues of
spiromesifen in or on vegetables, fruiting, group 8 and establishes
tolerances for inadvertent or indirect combined residues in or on oat
(grain, forage, hay, straw). Interregional Research Project No. 4 (IR-
4) and Bayer CropScience (respectively) 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 January 24, 2007. Objections and
requests for hearings must be received on or before March 26, 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-2006-0667. All documents in the
docket are listed in the index for the docket. 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 Building), 2777 S. Crystal Drive,
Arlington, VA. The 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: Thomas C. Harris, Registration
Division (7505P), Office of Pesticide Programs, Environmental
Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-
0001; telephone number: (703) 308-9423; e-mail address:
harris.thomas@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?
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 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, as amended by the 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. 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-2006-0667 in the
subject line on the first page of your submission. All requests must be
in writing, and must be
[[Page 3076]]
mailed or delivered to the Hearing Clerk on or before March 26, 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 your copies, identified by docket ID
number EPA-HQ-OPP-2006-0667, 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
Building), 2777 S. Crystal Drive, 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 telephone number is (703) 305-5805.
II. Background and Statutory Findings
In the Federal Register of September 13, 2006 (71 FR 54057) (FRL-
8091-7), 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 (PP
5E6901) by Interregional Research Project No. 4 (IR-4), Rutgers, The
State University of New Jersey, 500 College Road East, Suite 201,
Princeton, NJ 08540. The petition requested that 40 CFR 180.607 be
amended by revising a tolerance for combined residues of the
insecticide/miticide spiromesifen (2-oxo-3-(2,4,6-trimethylphenyl)-1-
oxaspiro[4.4]non-3-en-4-yl 3,3-dimethylbutanoate) and its enol
metabolite (4-hydroxy-3-(2,4,6-trimethylphenyl)-1-oxaspiro[4.4]non-3-
en-2-one), calculated as the parent compound equivalents, in or on
vegetable, fruiting, crop group 8 from 0.30 to 0.45 parts per million
(ppm). The same notice also announced the filing of a pesticide
petition (PP 6F7039) by Bayer CropScience, 2 T.W. Alexander Drive,
Research Triangle Park, NC 27709. That petition requested that 40 CFR
180.607 be amended by establishing a tolerance for inadvertent or
indirect combined residues of the insecticide/miticide spiromesifen (2-
oxo-3-(2,4,6-trimethylphenyl)-1-oxaspiro[4.4]non-3-en-4-yl 3,3-
dimethylbutanoate), its enol metabolite (4-hydroxy-3-(2,4,6-
trimethylphenyl)-1-oxaspiro[4.4]non-3-en-2-one), and its metabolites
containing the 4-hydroxymethyl moiety (4-hydroxy-3-[4-(hydroxymethyl)-
2,6-dimethylphenyl]-1-oxaspiro[4.4]non-3-en-2-one), calculated as the
parent compound equivalents, in or on oat, forage; oat, fodder; and
oat, straw at 0.25 ppm and in or on the food commodity oat, grain at
0.03 ppm. The notice included summaries of the petitions prepared by
Bayer CropScience, the registrant. Comments were received on the notice
of filing from one private citizen. EPA's response to these comments is
discussed in Unit IV.C.
Based on the EPA analysis of the residue chemistry and
toxicological databases, petition PP 6F7039 was subsequently revised to
express the oat tolerances as inadvertent or indirect combined residues
of the insecticide/miticide spiromesifen (2-oxo-3-(2,4,6-
trimethylphenyl)-1-oxaspiro[4.4]non-3-en-4-yl 3,3-dimethylbutanoate),
its enol metabolite (4-hydroxy-3-(2,4,6-trimethylphenyl)-1-
oxaspiro[4.4]non-3-en-2-one), and its metabolites containing the 4-
hydroxymethyl moiety (4-hydroxy-3-[4-(hydroxymethyl)-2,6-
dimethylphenyl]-1-oxaspiro[4.4]non-3-en-2-one), calculated as the
parent compound equivalents, in or on oat, forage at 0.20 ppm; oat,
grain at 0.03 ppm; oat, hay at 0.25 ppm; and oat, straw at 0.25 ppm.
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 the FFDCA and a complete
description of the risk assessment process, see https://www.epa.gov/
fedrgstr/EPA-PEST/1997/November/Day-26/p30948.htm and https://
www.epa.gov/fedrgstr/EPA-PEST/2003/July/Day-30/p19357.htm.
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 a tolerance for combined residues of the
insecticide/miticide spiromesifen and its enol metabolite, in or on
vegetable, fruiting, crop group 8 at 0.45 ppm and the inadvertent or
indirect combined residues of the insecticide/miticide spiromesifen and
its enol metabolite, in or on oat, forage at 0.20 ppm; oat, grain at
0.03 ppm; oat, hay at 0.25 ppm; and oat, straw at 0.25 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 toxic effects caused by spiromesifen 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 Unit III.A. of
the final rule published in the Federal Register of April 27, 2005 (70
FR 21631) (FRL-7705-1) at https://www.epa.gov/fedrgstr/EPAFR-CONTENTS/
2005/April/Day-27/contents.htm.
B. Toxicological Endpoints
For hazards that have a threshold below which there is no
appreciable risk, the dose at which no adverse effects are observed
(the NOAEL) from the toxicology study identified as appropriate for use
in risk assessment is used to estimate the toxicological level of
concern (LOC). However, the lowest dose at which adverse effects of
concern are identified (the LOAEL) is sometimes used for risk
assessment if no NOAEL was achieved in the toxicology study
[[Page 3077]]
selected. An uncertainty factor (UF) is applied to reflect
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.
The linear default risk methodology (Q*) is the primary method
currently used by the Agency to quantify non-threshold hazards such as
cancer. The Q* approach assumes that any amount of exposure will lead
to some degree of cancer risk and estimates risk in terms of the
probability of occurrence of additional cancer cases. More information
can be found on the general principles EPA uses in risk
characterization at https://www.epa.gov/pesticides/health/human.htm.
A summary of the toxicological endpoints for spiromesifen used for
human risk assessment is discussed in Unit III.B. of the final rule
published in the Federal Register of April 27, 2005 (70 FR 21631) (FRL-
7705-1) at https://www.epa.gov/fedrgstr/EPAFR-CONTENTS/2005/April/Day-
27/contents.htm.
C. Exposure Assessment
1. Dietary exposure from food and feed uses. Tolerances have been
established (40 CFR 180.607) for the combined residues of spiromesifen,
in or on a variety of raw agricultural commodities. In addition,
tolerances have been established for combined residues on several
livestock (cattle, goat, horse, sheep) commodities which feed on these
raw agricultural commodities and for inadvertent or indirect combined
residues on some rotational crop (alfalfa, barley, sugar beet, wheat)
commodities. Risk assessments were conducted by EPA to assess dietary
exposures from spiromesifen in food as follows:
i. Acute exposure. Quantitative acute dietary exposure and risk
assessments are performed for a food-use pesticide if a toxicological
study has indicated the possibility of an effect of concern occurring
as a result of a 1-day or single exposure.
No such effects were identified in the toxicological studies for
spiromesifen. Therefore, a quantitative acute dietary exposure
assessment is unnecessary.
ii. Chronic exposure. In conducting the chronic dietary exposure
assessment EPA used the Dietary Exposure Evaluation Model software with
the Food Commodity Intake Database (DEEM-FCID\TM\), which incorporates
food consumption data as reported by respondents in the USDA 1994-1996
and 1998 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: (1) Established/recommended tolerances for all plant and
livestock except the leafy-green and leafy-Brassica vegetable
subgroups; (2) EPA calculated residues of concern (parent and
metabolites) for the leafy-green and leafy-Brassica vegetable subgroup;
(3) 100% crop treated (CT) information for all proposed and existing
uses; and (4) DEEM\TM\ Version 7.81 default processing factors for all
commodities.
The metabolism studies show that the hydroxymethyl metabolite is
formed along with the enol metabolite only in the leafy-green and
leafy-Brassica vegetable subgroups. EPA determined that these two
metabolites along with the spiromesifen should be included in the
chronic dietary risk assessment for these crops. Residue data are
unavailable for the 4-hydroxymethyl metabolite; to account for this
metabolite in the risk assessment, the recommended tolerance levels for
these crops was multiplied by a correction factor of 1.3X, where 1.3 =
metabolites in risk assessment (ppm) / metabolites in tolerance
expression (ppm).
iii. Cancer. A cancer exposure assessment was not performed because
spiromesifen is classified as ``not likely to be carcinogenic to
humans.''
2. Dietary exposure from drinking water. The Agency lacks
sufficient monitoring exposure data to complete a comprehensive dietary
exposure analysis and risk assessment for spiromesifen 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 spiromesifen. 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 Pesticide Root Zone Model/Exposure Analysis Modeling
System (PRZM/EXAMS) and Screening Concentrations in Groundwater (SCI-
GROW) models, the estimated environmental concentrations (EECs) of
spiromesifen for chronic exposures are estimated to be 11 ppb for
surface water and 28 ppb for ground water. Drinking water estimates
were incorporated directly into the DEEM-FCID\TM\ using the estimated
drinking water concentration generated by the SCI-GROW (version 2.3)
model of 28 ppb.
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).
Spiromesifen 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 the FFDCA requires that, when
considering whether to establish, modify, or revoke a tolerance, the
Agency considers ``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 spiromesifen and any other
substances and spiromesifen 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 spiromesifen has
a common mechanism of toxicity with other substances. For information
regarding EPA's efforts to determine which chemicals have a common
mechanism of toxicity and to evaluate the cumulative effects of such
chemicals, see the policy statements released by EPA's Office of
Pesticide Programs concerning common mechanism determinations and
procedures for cumulating effects from substances found to have a
common mechanism on EPA's website at https://www.epa.gov/pesticides/
cumulative.
D. Safety Factor for Infants and Children
1. In general. Section 408 of FFDCA provides that EPA shall apply
an additional 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. 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
[[Page 3078]]
factor value based on the use of traditional uncertainty factors and/or
special FQPA safety factors, as appropriate.
2. Prenatal and postnatal sensitivity. There was no evidence of
increased susceptibility of rats or rabbits to in utero prenatal or
postpostnatal exposure to spiromesifen. In a rat developmental toxicity
study, no developmental toxicity was observed at doses up to 500
milligrams/kilograms/day (mg/kg/day) (the highest dose tested) in the
presence of maternal toxicity. The rat maternal LOAEL was determined to
be 70 mg/kg/day based on decreased body-weight gain and reduced food
consumption. In the rabbit developmental toxicity study, there was no
developmental toxicity observed at doses up to 250 mg/kg/day (the
highest dose tested), but the maternal LOAEL was determined to be 35
mg/kg/day based on body weight loss and reduced food consumption. There
is no qualitative and/or quantitative evidence of increased
susceptibility to spiromesifen following pre/postnatal exposure in a 2-
generation reproduction study in rats.
There is no concern for developmental neurotoxicity resulting from
exposure to spiromesifen. Neurotoxic effects such as reduced motility,
spastic gait, increased reactivity, tremors, clonic-tonic convulsions,
reduced activity, labored breathing, vocalization, avoidance reaction,
piloerection, limp, cyanosis, squatted posture, and salivation were
observed in two studies (5-day inhalation and subchronic oral rat).
However, these effects were considered as secondary, not neurotoxic,
effects due to the high dosage. There was no evidence of neurotoxicity
in the acute or subchronic neurotoxicity or any other studies.
3. Conclusion. For spiromesifen, EPA determined that the 10X safety
factor to protect infants and children should be removed. A 1X safety
factor is appropriate because:
There is a complete toxicity database for spiromesifen.
There was no evidence of increased susceptibility of rat
or rabbit fetuses to in utero exposure in developmental studies, nor
following prenatal or postnatal exposure by rats in the 2-generation
reproduction study.
There are no neurotoxicity concerns based on acute and
subchronic neurotoxicity studies.
The dietary food exposure assessment uses proposed
tolerance levels or higher residues for most commodities and assumed
100% crop-treated information for all commodities. By using these
screening-level assessments, chronic exposures and risks will not be
underestimated. The ``higher residues'' are those that were calculated
using a modifying factor to account for the lack of spiromesifen-4-
hydroxymethyl residue data.
The dietary drinking water assessment (Tier 2 estimates)
uses values generated by model and associated modeling parameters which
are designed to provide conservative, health protective, and high-end
estimates of water concentrations.
Residential exposure is not expected, spiromesifen will be
registered for agricultural and greenhouse/ornamental uses only.
E. Aggregate Risks and Determination of Safety
1. Acute risk. As there were no toxic effects attributable to a
single dose, an endpoint of concern was not identified to quantitate
acute dietary risk to the general population or any subpopulation. No
acute risk is expected from exposure to spiromesifen.
2. Chronic risk. Using the exposure assumptions described in this
unit for chronic exposure, EPA has concluded that exposure to
spiromesifen from food and water will utilize 31% of the chronic
population adjusted dose (cPAD) for the U.S. population, 23% of the
cPAD for all infants less than 1 year old, and 38% of the cPAD for
children 1-2 years old, the most highly exposed population subgroups.
There are no residential uses for spiromesifen that result in chronic
residential exposure to spiromesifen. Therefore, EPA does not expect
the aggregate exposure to exceed 100% of the cPAD.
3. Short- and Intermediate-term risk. Short- and intermediate-term
aggregate exposure takes into account residential exposure plus chronic
exposure to food and water (considered to be a background exposure
level).
Spiromesifen 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. Aggregate cancer risk for U.S. population. Spiromesifen is not
expected to pose a cancer risk.
5. 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 spiromesifen residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate analytical enforcement methodologies, high-performance
liquid chromatography (HPLC)/mass spectrometry (MS)/MS, exist and have
been successfully validated by independent laboratories.
B. International Residue Limits
There are no international residue limits for spiromesifen listed
in CODEX.
C. Response to Comments
Several comments were received from one private citizen objecting
to pesticide body load, registrant profiteering, establishing
tolerances, pollution by pesticides, and lack of notification when
pesticides are applied to neighboring areas. The Agency has received
similar comments from this commenter on numerous previous occasions.
Refer to Federal Register 70 FR 37686 (June 30, 2005), 70 FR 1354
(January 7, 2005), and 69 FR 63096-63098 (October 29, 2004) for the
Agency's response to these objections.
V. Conclusion
Therefore, the tolerance is revised for combined residues of the
insecticide/miticide spiromesifen (2-oxo-3-(2,4,6-trimethylphenyl)-1-
oxaspiro[4.4]non-3-en-4-yl 3,3-dimethylbutanoate) and its enol
metabolite (4-hydroxy-3-(2,4,6-trimethylphenyl)-1-oxaspiro[4.4]non-3-
en-2-one), calculated as the parent compound equivalents, in or on
vegetable, fruiting, crop group 8 to 0.45 ppm. Also, the tolerance is
established for inadvertent or indirect combined residues of the
insecticide/miticide spiromesifen (2-oxo-3-(2,4,6-trimethylphenyl)-1-
oxaspiro[4.4]non-3-en-4-yl 3,3-dimethylbutanoate), its enol metabolite
(4-hydroxy-3-(2,4,6-trimethylphenyl)-1-oxaspiro[4.4]non-3-en-2-one),
and its metabolites containing the 4-hydroxymethyl moiety (4-hydroxy-3-
[4-(hydroxymethyl)-2,6-dimethylphenyl]-1-oxaspiro[4.4]non-3-en-2-one),
calculated as the parent compound equivalents, in or on oat, forage at
0.20 ppm; oat, grain at 0.03 ppm; oat, hay at 0.25 ppm; and oat, straw
at 0.25 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,
[[Page 3079]]
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 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.
VII. 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: January 17, 2007.
Lois Rossi,
Director, Registration Division, Office of Pesticide Programs.
0
Therefore, 40 CFR chapter I is amended as follows:
PART 180--[AMENDED]
0
1. The authority citation for part 180 continues to read as follows:
Authority: 21 U.S.C. 321(q), 346a and 371.
0
2. Section 180.607 is amended in the table to paragraph (a)(1) by
revising the entry for ``Vegetable, fruiting group 8'' and in the table
to paragraph (d) by adding alphabetically commodities to read as
follows:
Sec. 180.607 Spiromesifen; tolerances for residues.
(a) General. (1) * * *
------------------------------------------------------------------------
Parts per
Commodity million
------------------------------------------------------------------------
* * * * *
Vegetable, fruiting, group 8............................... 0.45
* * * * *
------------------------------------------------------------------------
* * * * *
(d) * * *
------------------------------------------------------------------------
Parts per
Commodity million
------------------------------------------------------------------------
* * * * *
Oat, forage................................................ 0.20
Oat, grain................................................. 0.03
Oat, hay................................................... 0.25
Oat, straw................................................. 0.25
* * * * *
------------------------------------------------------------------------
[FR Doc. E7-990 Filed 1-23-07; 8:45 am]
BILLING CODE 6560-50-S