Cymoxanil; Pesticide Tolerance, 37641-37646 [E7-13419]
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Federal Register / Vol. 72, No. 132 / Wednesday, July 11, 2007 / Rules and Regulations
List of Subjects in 40 CFR Part 180
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
Dated: July 2, 2007.
Donald R. Stubbs,
Acting 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. In § 180.564, paragraph (a) is
revised and paragraph (b) is removed
and reserved to read as follows:
I
§ 180.564 Indoxacarb; tolerances for
residues.
(a) General. Tolerances are
established for the combined residues of
the insecticide indoxacarb, (S)-methyl 7chloro-2,5-dihydro-2[[(methoxycarbonyl)[4(trifluoromethoxy)phenyl]
amino]carbonyl]indeno[1,2e][1,3,4][oxadiazine-4a(3H)-carboxylate,
and its R-enantiomer, (R)-methyl 7chloro-2,5-dihydro-2[[(methoxycarbonyl)[4(trifluoromethoxy)phenyl]
amino]carbonyl]indeno[1,2e][1,3,4][oxadiazine-4a(3H)-carboxylate,
in or on the following raw agricultural
commodities:
Commodity
Parts per million
Milk, fat ...........................
Okra ................................
Pea, southern, seed .......
Peanut ............................
Peanut, hay ....................
Pear ................................
Pear, oriental ..................
Peppermint, tops ............
Sheep, fat .......................
Sheep, meat ...................
Sheep, meat byproducts
Soybean, aspirated grain
fractions .......................
Soybean, hulls ................
Soybean, seed ................
Spearmint, tops ..............
Turnip, greens ................
Vegetable, Brassica,
leafy, group 5 ..............
Vegetable, cucurbit,
group 9 ........................
Vegetable, fruiting, group
8 ..................................
Vegetable, leafy, except
Brassica, group 4 ........
Vegetable, tuberous and
corm, subgroup 1-C ....
4.0
0.50
0.10
0.01
40
0.20
0.20
11
1.5
0.05
0.03
45
4.0
0.80
11
12
12
0.60
0.50
14
0.01
(b) Section 18 emergency exemptions.
[Reserved]
*
*
*
*
*
[FR Doc. E7–13339 Filed 7–10–07; 8:45 am]
BILLING CODE 6560–50–S
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2006–0331; FRL–8130–5]
Cymoxanil; Pesticide Tolerance
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Commodity
Parts per million
Apple, wet pomace .........
Alfalfa, forage .................
Alfalfa, hay ......................
Cattle, fat ........................
Cattle, meat ....................
Cattle, meat byproducts
Corn, sweet, forage ........
Corn, sweet, kernel plus
cob with husk removed
Corn, sweet, stover ........
Cotton, gin byproducts ...
Cotton, undelinted seed
Cranberry ........................
Fruit, pome, except pear,
group 11 ......................
Fruit, stone, group 12 .....
Goat, fat ..........................
Goat, meat ......................
Goat, meat byproducts ...
Grape ..............................
Grape, raisin ...................
Hog, fat ...........................
Hog, meat .......................
Hog, meat byproducts ....
Horse, fat ........................
Horse, meat ....................
Horse, meat byproducts
Milk .................................
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3.0
10
50
1.5
0.05
0.03
10
0.02
15
15
2.0
0.90
1.0
0.90
1.5
0.05
0.03
2.0
5.0
1.5
0.05
0.03
1.5
0.05
0.03
0.15
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Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
SUMMARY: This regulation establishes
tolerances for residues of cymoxanil in
or on grape, hop, and caneberry. The
Interregional Research Project (IR-4)
requested these tolerances under the
Federal Food, Drug, and Cosmetic Act
(FFDCA).
DATES: This regulation is effective July
11, 2007. Objections and requests for
hearings must be received on or before
September 10, 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–2006–0331. To access the
electronic docket, go to https://
www.regulations.gov, select ‘‘Advanced
Search,’’ then ‘‘Docket Search.’’ Insert
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37641
the docket ID number where indicated
and select the ‘‘Submit’’ button. Follow
the instructions on the regulations.gov
web site to view the docket index or
access available documents. All
documents in the docket are listed in
the docket index available in
regulations.gov. Although listed in the
index, some information is not publicly
available, e.g., Confidential Business
Information (CBI) or other information
whose disclosure is restricted by statute.
Certain other material, such as
copyrighted material, is not placed on
the Internet and will be publicly
available only in hard copy form.
Publicly available docket materials are
available in the electronic docket at
https://www.regulations.gov, or, if only
available in hard copy, at the OPP
Regulatory Public Docket in Rm. S-4400,
One Potomac Yard (South 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
Facility telephone number is (703) 305–
5805.
FOR FURTHER INFORMATION CONTACT:
Shaja R. Brothers, Registration Division
(7505P), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave., NW., Washington,
DC 20460–0001; telephone number:
(703) 308–3194; e-mail address:
brothers.shaja@epa.gov.
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does this Action Apply to Me?
You may be potentially affected by
this action if you are an agricultural
producer, food manufacturer, or
pesticide manufacturer. Potentially
affected entities may include, but are
not limited to those engaged in the
following activities:
• Crop production (NAICS code 111),
e.g., agricultural workers; greenhouse,
nursery, and floriculture workers;
farmers.
• Animal production (NAICS code
112), e.g., cattle ranchers and farmers,
dairy cattle farmers, livestock farmers.
• Food manufacturing (NAICS code
311), e.g., agricultural workers; farmers;
greenhouse, nursery, and floriculture
workers; ranchers; pesticide applicators.
• Pesticide manufacturing (NAICS
code 32532), e.g., agricultural workers;
commercial applicators; farmers;
greenhouse, nursery, and floriculture
workers; residential users.
This listing is not intended to be
exhaustive, but rather to provide a guide
for readers regarding entities likely to be
affected by this action. Other types of
entities not listed in this unit could also
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be affected. The North American
Industrial Classification System
(NAICS) codes have been provided to
assist you and others in determining
whether this action might apply to
certain entities. If you have any
questions regarding the applicability of
this action to a particular entity, consult
the person listed under FOR FURTHER
INFORMATION CONTACT.
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B. How Can I Access Electronic Copies
of this Document?
In addition to accessing an electronic
copy of this Federal Register document
through the electronic docket at https://
www.regulations.gov, you may access
this Federal Register document
electronically through the EPA Internet
under the ‘‘Federal Register’’ listings at
https://www.epa.gov/fedrgstr. You may
also access a frequently updated
electronic version of EPA’s tolerance
regulations at 40 CFR part 180 through
the Government Printing Office’s pilot
e-CFR site at https://www.gpoaccess.gov/
ecfr.
C. Can I File an Objection or Hearing
Request?
Under section 408(g) of the FFDCA,
any person may file an objection to any
aspect of this regulation and may also
request a hearing on those objections.
You must file your objection or request
a hearing on this regulation in
accordance with the instructions
provided in 40 CFR part 178. To ensure
proper receipt by EPA, you must
identify docket ID number EPA–HQ–
OPP–2006–0331 in the subject line on
the first page of your submission. All
requests must be in writing, and must be
mailed or delivered to the Hearing Clerk
as required by 40 CFR part 178 on or
before September 10, 2007.
In addition to filing an objection or
hearing request with the Hearing Clerk
as described in 40 CFR part 178, please
submit a copy of the filing that does not
contain any CBI for inclusion in the
public docket that is described in
ADDRESSES. Information not marked
confidential pursuant to 40 CFR part 2
may be disclosed publicly by EPA
without prior notice. Submit this copy,
identified by docket ID number EPA–
HQ–OPP–2006–0331, 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
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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 Facility telephone number is
(703) 305–5805.
II. Petition for Tolerance
In the Federal Register of May 10,
2006, (71 FR 27247) (FRL–8067–5), and
November 15, 2006, (71 FR 66522)
(FRL–8101–8) EPA issued notices
pursuant to section 408(d)(3) of the
FFDCA, 21 U.S.C. 346a(d)(3),
announcing the filing of pesticide
petitions PP 5E7000 (grape and hop),
and PP 6E7100 (caneberry) by the IR-4,
500 College Road East, Suite 201 W,
Princeton, NJ 08540. The petitions
requested that 40 CFR 180.503(a) be
amended by establishing tolerances for
residues of the fungicide cymoxanil, in
or on grape (east of the Rocky
Mountains) at 1.0 parts per million
(ppm); hop, dried cones at 5.0 ppm; and
caneberry at 4.0 ppm. These notices
referenced a summary of the petitions
prepared by Dupont, the registrant,
which is available to the public in the
docket, https://www.regulations.gov.
Comments were received from a private
citizen on the notice of filing for grape;
and hop, dried cones. EPA’s response to
comment is discussed in Unit IV.C.
III. Aggregate Risk Assessment and
Determination of Safety
Section 408(b)(2)(A)(i) of the 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 the FFDCA
defines ‘‘safe’’ to mean that ‘‘there is a
reasonable certainty that no harm will
result from aggregate exposure to the
pesticide chemical residue, including
all anticipated dietary exposures and all
other exposures for which there is
reliable information.’’ This includes
exposure through drinking water and in
residential settings, but does not include
occupational exposure. Section
408(b)(2)(C) of the FFDCA requires EPA
to give special consideration to
exposure of infants and children to the
pesticide chemical residue in
establishing a tolerance and to ‘‘ensure
that there is a reasonable certainty that
no harm will result to infants and
children from aggregate exposure to the
pesticide chemical residue....’’ These
provisions were added to the FFDCA by
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the Food Quality Protection Act (FQPA)
of 1996.
Consistent with section 408(b)(2)(D)
of the FFDCA, and the factors specified
in section 408(b)(2)(D), EPA has
reviewed the available scientific data
and other relevant information in
support of this action. EPA has
sufficient data to assess the hazards of
and to make a determination on
aggregate exposure for the petitioned-for
tolerance for residues of cymoxanil on
grape at 0.10 ppm; hop, dried cone at
7.0 ppm; and caneberry at 4.0 ppm.
EPA’s assessment of exposures and risks
associated with establishing these
tolerances follow.
A. Toxicological Profile
EPA has evaluated the available
toxicity data and considered its validity,
completeness, and reliability as well as
the relationship of the results of the
studies to human risk. EPA has also
considered available information
concerning the variability of the
sensitivities of major identifiable
subgroups of consumers, including
infants and children. Specific
information on the studies received and
the nature of the adverse effects caused
by cymoxanil as well as the noobserved-adverse-effect-level (NOAEL)
and the lowest-observed-adverse-effectlevel (LOAEL) from the toxicity studies
can be found at https://
www.regulations.gov. The referenced
document is available in the docket
established by this action, which is
described under ADDRESSES, and is
identified as EPA–HQ–OPP–2006–0331
in that docket. Please refer to the
Human Health Risk Assessment for
Cymoxanil for New section 3 Uses in/
on Grapes (East of the Rocky
Mountains); Hop, dried cones; and
Caneberry Subgroup 13A on pages 16–
19.
B. Toxicological Endpoints
For hazards that have a threshold
below which there is no appreciable
risk, the toxicological level of concern
(LOC) is derived from the highest dose
at which no adverse effects are observed
(the NOAEL) in the toxicology study
identified as appropriate for use in risk
assessment. However, if a NOAEL
cannot be determined, the lowest dose
at which adverse effects of concern are
identified (the LOAEL) is sometimes
used for risk assessment. Uncertainty/
safety factors (UF) are used in
conjunction with the LOC to take into
account uncertainties inherent in the
extrapolation from laboratory animal
data to humans and in the variations in
sensitivity among members of the
human population as well as other
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unknowns. Safety is assessed for acute
and chronic risks by comparing
aggregate exposure to the pesticide to
the acute population adjusted dose
(‘‘aPAD’’) and chronic population
adjusted dose (‘‘cPAD’’). The aPAD and
cPAD are calculated by dividing the
LOC by all applicable uncertainty/safety
factors. Short-term, intermediate, and
long-term risks are evaluated by
comparing aggregate exposure to the
LOC to ensure that the margin of
exposure (‘‘MOE’’) called for by the
product of all applicable uncertainty/
safety factors is not exceeded.
For non-threshold risks, the Agency
assumes that any amount of exposure
will lead to some degree of risk and
estimates risk in terms of the probability
of occurrence of additional adverse
cases. Generally, cancer risks are
considered non-threshold. For more
information on the general principles
EPA uses in risk characterization and a
complete description of the risk
assessment process, see https://
www.epa.gov/fedrgstr/EPA-PEST/1997/
November/Day–26/p30948.htm.
A summary of the toxicological
endpoints for cymoxanil used for
human risk assessment can be found at
www.regulations.gov in the Human
Health Risk Assessment for Cymoxanil
for New section 3 Uses in/on Grapes
(East of the Rocky Mountains); Hop,
dried cone; and Caneberry Subgroup
13A, pages 19–20 in Docket ID EPA–
HQ–OPP–2006–0331.
C. Exposure Assessment
1. Dietary exposure from food and
feed uses. In evaluating dietary
exposure to cymoxanil, EPA considered
exposure under the petitioned-for
tolerances as well as all existing
cymoxanil tolerances in (40 CFR
180.503(a)). EPA assessed dietary
exposures from cymoxanil 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. An acute dietary exposure
assessment was performed for females
13–49 years old only, since an acute
endpoint of concern was not identified
for the general U.S. population. In
estimating acute dietary exposure, EPA
used food consumption information
from the United States Department of
Agriculture (USDA) 1994–1996, and
1998 Nationwide Continuing Surveys of
Food Intake by Individuals (CSFII). As
to residue levels in food, EPA assumed
that cymoxanil residues were present in
all registered and proposed food
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commodities at tolerance levels, and
100 percent crop treated (PCT) for all
commodities. Dietary Exposure
Evaluation Model (DEEM) version 7.81
default processing factors were used for
all registered and proposed
commodities except for grape juice and
raisin.
ii. Chronic exposure. In conducting
the chronic dietary exposure assessment
EPA used the food consumption data
from the USDA 1994–1996 and 1998
Nationwide CSFII. As to residue levels
in food, EPA used tolerance level
residues for all commodities except
lettuce, hops and grapes. Average
residues from field trials were used for
lettuce, hops and grapes. DEEM default
processing factors were used for all
commodities except grapes. Processing
factors for grape juice (1.4x) and raisins
(1x) were derived from grape processing
data. Exposure estimates were further
refined using screening-level PCT (%
CT) data for several registered
commodities. For all other commodities,
including the proposed new uses, 100
%CT was assumed.
iii. Cancer. EPA has classified
cymoxanil as a ‘‘not likely’’ human
carcinogen. Therefore, a cancer dietary
exposure analysis was not performed.
iv. Anticipated residue and PCT
information. Section 408(b)(2)(E) of the
FFDCA authorizes EPA to use available
data and information on the anticipated
residue levels of pesticide residues in
food and the actual levels of pesticide
residues that have been measured in
food. If EPA relies on such information,
EPA must pursuant to section 408(f)(1)
require that data be provided 5 years
after the tolerance is established,
modified, or left in effect, demonstrating
that the levels in food are not above the
levels anticipated. For the present
action, EPA will issue such data call-ins
as are required by section 408(b)(2)(E) of
the FFDCA and authorized under
section 408(f)(1) of the FFDCA. Data
will be required to be submitted no later
than 5 years from the date of issuance
of this tolerance.
Section 408(b)(2)(F) of the FFDCA
states that the Agency may use data on
the actual percent of food treated for
assessing chronic dietary risk only if:
a. The data used are reliable and
provide a valid basis to show what
percentage of the food derived from
such crop is likely to contain such
pesticide residue;
b. The exposure estimate does not
underestimate exposure for any
significant subpopulation group; and
c. Data are available on pesticide use
and food consumption in a particular
area, the exposure estimate does not
understate exposure for the population
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in such area. In addition, the Agency
must provide for periodic evaluation of
any estimates used. To provide for the
periodic evaluation of the estimate of
PCT as required by section 408(b)(2)(F)
of the FFDCA, EPA may require
registrants to submit data on PCT.
The Agency used PCT information as
follows: Cucumber, head lettuce,
pepper, potato, and tomato at 10%;
pumpkin, squash, and watermelon at
1%.
EPA uses an average PCT for chronic
dietary risk analysis. The average PCT
figure for each existing use is derived by
combining available federal, state, and
private market survey data for that use,
averaging by year, averaging across all
years, and rounding up to the nearest
multiple of five percent except for those
situations in which the average PCT is
less than one. In those cases <1% is
used as the average and <2.5% is used
as the maximum. EPA uses a maximum
PCT for acute dietary risk analysis. The
maximum PCT figure is the single
maximum value reported overall from
available federal, state, and private
market survey data on the existing use,
across all years, and rounded up to the
nearest multiple of five percent. In most
cases, EPA uses available data from
USDA/National Agricultural Statistics
Service (USDA/NASS), Proprietary
Market Surveys, and the National Center
for Food and Agriculture Policy
(NCFAP) for the most recent six years.
The Agency believes that the three
conditions have been met. With respect
to Condition 1, PCT estimates are
derived from Federal and private market
survey data, which are reliable and have
a valid basis. The Agency is reasonably
certain that the percentage of the food
treated is not likely to be an
underestimation. As to Conditions 2 and
3, regional consumption information
and consumption information for
significant subpopulations is taken into
account through EPA’s computer-based
model for evaluating the exposure of
significant subpopulations including
several regional groups. Use of this
consumption information in EPA’s risk
assessment process ensures that EPA’s
exposure estimate does not understate
exposure for any significant
subpopulation group and allows the
Agency to be reasonably certain that no
regional population is exposed to
residue levels higher than those
estimated by the Agency. Other than the
data available through national food
consumption surveys, EPA does not
have available information on the
regional consumption of food to which
cymoxanil may be applied in a
particular area.
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2. Dietary exposure from drinking
water. The Agency lacks sufficient
monitoring data to complete a
comprehensive dietary exposure
analysis and risk assessment for
cymoxanil in drinking water. Because
the Agency does not have
comprehensive monitoring data,
drinking water concentration estimates
are made by reliance on simulation or
modeling taking into account data on
the environmental fate characteristics of
cymoxanil. 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.
The Agency calculated screening level
surface and ground water estimates for
cymoxanil using FQPA Index Reservoir
Screening Tool (FIRST (version 1.0)),
and SCI-GROW (Screening
Concentration In GROund Water)
models, respectively. The proposed
application rates for use on grape and
hop are higher than the rates evaluated
previously. Estimated drinking water
concentrations were estimated based on
the newly proposed application rate for
grape (0.25 lbs per acre, 10 times),
which was the highest application rate
reported for the new proposed uses.
Based on the FIRST and SCI-GROW
models, the estimated environmental
concentrations (EECs) of cymoxanil for
acute and chronic exposures are 0.019
parts per billion (ppb), and 0.0001 ppb,
respectively for surface water. The EECs
for groundwater (acute and chronic) are
estimated to be 0.000003 ppb.
Modeled estimates of drinking water
concentrations were directly entered
into the dietary exposure model. For
acute dietary risk assessment, the water
concentration value of 0.019 ppb was
used to access the contribution to
drinking water. For chronic dietary risk
assessment, the water concentration of
value 0.0001 ppb was used to access the
contribution to drinking water.
3. From non-dietary exposure. The
term ‘‘residential exposure’’ is used in
this document to refer to nonoccupational, non-dietary exposure
(e.g., for lawn and garden pest control,
indoor pest control, termiticides, and
flea and tick control on pets).
Cymoxanil 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 consider
‘‘available information’’ concerning the
cumulative effects of a particular
pesticide’s residues and ‘‘other
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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
cymoxanil and any other substances and
cymoxanil 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 cymoxanil has a common
mechanism of toxicity with other
substances. For information regarding
EPA’s efforts to determine which
chemicals have a common mechanism
of toxicity and to evaluate the
cumulative effects of such chemicals,
see EPA’s website at https://
www.epa.gov/pesticides/cumulative.
D. Safety Factor for Infants and
Children
1. In general. Section 408 of the
FFDCA provides that EPA shall apply
an additional (‘‘10X’’) tenfold margin of
safety for infants and children in the
case of threshold effects to account for
prenatal and postnatal toxicity and the
completeness of the database on toxicity
and exposure unless EPA determines
based on reliable data that a different
margin of safety will be safe for infants
and children. This additional margin of
safety is commonly referred to as the
FQPA safety factor. In applying this
provision, EPA either retains the default
value of 10X when reliable data do not
support the choice of a different factor,
or, if reliable data are available, EPA
uses a different additional FQPA safety
factor value based on the use of
traditional uncertainty/safety factors
and/or special FQPA safety factors, as
appropriate.
2. Prenatal and postnatal sensitivity.
There is an indication of increased
susceptibility (qualitative and
quantitative) of rats and rabbits to in
utero exposure to cymoxanil. In the rat
developmental toxicity study, decreased
fetal body weights and skeletal
malformations were observed at 25 mg/
kg/day LOAEL, which is below the
maternal toxicity of 75 mg/kg/day
LOAEL. In the rabbit developmental
study increased skeletal malformations
were observed at 8 mg/kg/day LOAEL,
also below the maternal NOAEL of 32
mg/kg/day. In the 2–generation
reproduction study there was an
indication of increased qualitative
susceptibility in the offspring, since
there was decreased pup viability at a
dose that produced less severe effects in
maternal animals.
3. Conclusion. EPA has determined
that reliable data show that it would be
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safe for the infants and children FQPA
safety factor to be reduced to 1X for
acute dietary exposures. The EPA
believes that this will be protective of
infants and children based on the
following findings:
i. The toxicity database for cymoxanil
is complete for dietary risk assessment.
ii. Although there is qualitative
evidence of increased susceptibility in
the prenatal developmental studies in
rats and rabbits, the risk assessment
team did not identify any residual
uncertainties after establishing toxicity
endpoints and traditional uncertainty
factors to be used in the risk assessment
of cymoxanil. The degree of concern for
pre-and/or postnatal toxicity is low.
iii. There are no residual uncertainties
identified in the exposure databases.
The acute dietary food exposure
assessment was performed based on 100
PCT, tolerance-level residues, and
DEEM default processing factors for all
registered and proposed commodities.
Conservative ground and surface water
modeling estimates were also used and
incorporated directly in the DEEM
analysis. The Agency has determined
with reasonably certainty that the
identified assessment will not
underestimate the exposure and risks
posed by cymoxanil. However, the 10X
FQPA safety factor was retained for
chronic dietary exposure because a
LOAEL was used to extrapolate a
NOAEL for the chronic toxicity study in
the dog.
E. Aggregate Risks and Determination of
Safety
Safety is assessed for acute and
chronic risks by comparing aggregate
exposure to the pesticide to the acute
population adjusted dose (‘‘aPAD’’) and
chronic population adjusted dose
(‘‘cPAD’’). The aPAD and cPAD are
calculated by dividing the LOC by all
applicable uncertainty/safety factors.
For linear cancer risks, EPA calculates
the probability of additional cancer
cases given aggregate exposure. Shortterm, intermediate, and long-term risks
are evaluated by comparing aggregate
exposure to the LOC to ensure that the
margin of exposure (‘‘MOE’’) called for
by the product of all applicable
uncertainty/safety factors is not
exceeded.
1. Acute risk. Using the exposure
assumptions discussed in this unit for
acute exposure, the acute dietary
exposure from food and water to
cymoxanil will occupy 72% of the
aPAD for the population group (females
13–49 years old).
2. Chronic risk. Using the exposure
assumptions described in this unit for
chronic exposure, EPA has concluded
E:\FR\FM\11JYR1.SGM
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Federal Register / Vol. 72, No. 132 / Wednesday, July 11, 2007 / Rules and Regulations
that exposure to cymoxanil from food
and water will utilize 51% of the cPAD
for children 1–2 years old, the
subpopulation group with greatest
exposure. There are no residential uses
for cymoxanil that result in chronic
residential exposure to cymoxanil.
3. Short and intermediate-term risks.
Short and Intermediate-term aggregate
exposures takes into account residential
exposure plus chronic exposure to food
and water (considered to be a
background exposure level). Cymoxanil
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. EPA has classified
cymoxanil as a ‘‘not likely’’ human
carcinogen. Therefore, cymoxanil 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, or to infants and children
from aggregate exposure to cymoxanil
residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodologies
(high performance liquid
chromatography with ultra violet
detection (HPLC/UV) and (HPLC/MS)
using (mass spectroscopy) on grape,
caneberry, and hop, respectively) are
available to enforce the tolerance
expression. The methods 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 for CODEX maximum
residue levels established for cymoxanil
on grape; hop, dried cone; and
caneberry.
rfrederick on PROD1PC67 with RULES
C. Response to Comments
Comments were submitted by a
private citizen who opposed the
establishment of cymoxanil tolerances
for the following reasons:
1. The availability of numerous
products previously registered for the
same purpose in which the new
cymoxanil tolerances are intended, and
2. Cymoxanil is toxic to aquatic
plants, bees, and birds, and therefore
has potential harmful effects on the
environment. These comments are
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considered irrelevant because the safety
standard for approving tolerances under
section 408 of the FFDCA focuses on
potential harms to human health and
does not permit consideration of effects
on the environment or the availability of
other registered products.
V. Conclusion
The proposed hop, dried cone
tolerance was revised from 5.0 to 7.0
ppm based on submitted field trial
residues. For grape, the proposed
tolerance of 1.0 was lowered to 0.10
ppm. The residue field trials indicate
0.10 ppm as the appropriate regional
tolerance for grape. Therefore,
tolerances are established for residues of
cymoxanil, 2-cyano-N[(ethylamino)carbonyl]-2(methoxyimino) acetamide in or on
grape (east of the Rocky Mountains) at
0.10 ppm; hop, dried cone at 7.0 ppm;
and caneberry at 4.0 ppm.
VI. Statutory and Executive Order
Reviews
This final rule establishes a tolerance
under section 408(d) of the FFDCA in
response to a petition submitted to the
Agency. The Office of Management and
Budget (OMB) has exempted these types
of actions from review under Executive
Order 12866, entitled Regulatory
Planning and Review (58 FR 51735,
October 4, 1993). Because this rule has
been exempted from review under
Executive Order 12866, this rule is not
subject to Executive Order 13211,
Actions Concerning Regulations That
Significantly Affect Energy Supply,
Distribution, or Use (66 FR 28355, May
22, 2001) or Executive Order 13045,
entitled Protection of Children from
Environmental Health Risks and Safety
Risks (62 FR 19885, April 23, 1997).
This final rule does not contain any
information collections subject to OMB
approval under the Paperwork
Reduction Act (PRA), 44 U.S.C. 3501 et
seq., nor does it require any special
considerations under Executive Order
12898, entitled Federal Actions to
Address Environmental Justice in
Minority Populations and Low-Income
Populations (59 FR 7629, February 16,
1994).
Since tolerances and exemptions that
are established on the basis of a petition
under section 408(d) of the FFDCA,
such as the tolerance in this final rule,
do not require the issuance of a
proposed rule, the requirements of the
Regulatory Flexibility Act (RFA) (5
U.S.C. 601 et seq.) do not apply.
This final rule directly regulates
growers, food processors, food handlers
and food retailers, not States or tribes,
nor does this action alter the
PO 00000
Frm 00017
Fmt 4700
Sfmt 4700
37645
relationships or distribution of power
and responsibilities established by
Congress in the preemption provisions
of section 408(n)(4) of the FFDCA. As
such, the Agency has determined that
this action will not have a substantial
direct effect on States or tribal
governments, on the relationship
between the national government and
the States or tribal governments, or on
the distribution of power and
responsibilities among the various
levels of government or between the
Federal Government and Indian tribes.
Thus, the Agency has determined that
Executive Order 13132, entitled
Federalism (64 FR 43255, August 10,
1999) and Executive Order 13175,
entitled Consultation and Coordination
with Indian Tribal Governments (65 FR
67249, November 6, 2000) do not apply
to this rule. In addition, This rule does
not impose any enforceable duty or
contain any unfunded mandate as
described under Title II of the Unfunded
Mandates Reform Act of 1995 (UMRA)
(Public Law 104–4).
This action does not involve any
technical standards that would require
Agency consideration of voluntary
consensus standards pursuant to section
12(d) of the National Technology
Transfer and Advancement Act of 1995
(NTTAA), Public Law 104–113, section
12(d) (15 U.S.C. 272 note).
VII. Congressional Review Act
The Congressional Review Act, 5
U.S.C. 801 et seq., generally provides
that before a rule may take effect, the
agency promulgating the rule must
submit a rule report to each House of
the Congress and to the Comptroller
General of the United States. EPA will
submit a report containing this rule and
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: July 3, 2007.
Daniel J. Rosenblatt,
Acting Director, Registration Division, Office
of Pesticide Programs.
Therefore, 40 CFR chapter I is
amended as follows:
I
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37646
Federal Register / Vol. 72, No. 132 / Wednesday, July 11, 2007 / Rules and Regulations
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 180.503 is amended by
revising the table in paragraph (a); and
by adding text to paragraph (c) to read
as follows:
I
§ 180.503 Cymoxanil, tolerance for
residues.
(a)
*
*
*
Commodity
Parts per million
EPA has established a
docket for this action under docket
identification (ID) number EPA–HQ–
OPP–2006–0483. To access the
electronic docket, go to https://
www.regulations.gov, select ‘‘Advanced
0.05 Search,’’ then ‘‘Docket Search.’’ Insert
the docket ID number where indicated
0.2
and select the ‘‘Submit’’ button. Follow
1
the instructions on the regulations.gov
There is no U.S. registration for lychee.
web site to view the docket index or
*
*
*
*
*
access available documents. All
(c) Tolerances with a regional
documents in the docket are listed in
registration. Tolerances with a regional
the docket index available in
registration as defined in § 180.1(n) are
regulations.gov. Although listed in the
established for the residues of the
index, some information is not publicly
fungicide cymoxanil, 2-cyano -Navailable, e.g., Confidential Business
[(ethylamino)carbonyl]-2(methoxyimino) acetamide) in or on the Information (CBI) or other information
whose disclosure is restricted by statute.
raw agricultural commodities:
Certain other material, such as
copyrighted material, is not placed on
Commodity
Parts per million
the Internet and will be publicly
Grape ..............................
0.10 available only in hard copy form.
Publicly available docket materials are
*
*
*
*
*
available in the electronic docket at
https://www.regulations.gov, or, if only
[FR Doc. E7–13419 Filed 7–10–07; 8:45 am]
available in hard copy, at the OPP
BILLING CODE 6560–50–S
Regulatory Public Docket in Rm. S-4400,
One Potomac Yard (South Bldg.), 2777
ENVIRONMENTAL PROTECTION
S. Crystal Dr., Arlington, VA. The
AGENCY
Docket Facility is open from 8:30 a.m.
to 4 p.m., Monday through Friday,
40 CFR Part 180
excluding legal holidays. The Docket
Facility telephone number is (703) 305–
[EPA–HQ–OPP–2006–0483; FRL–8131–6]
5805.
Chlorpropham, Linuron, Pebulate,
FOR FURTHER INFORMATION CONTACT: Jane
Asulam, and Thiophanate–methyl;
Smith, Special Review and
Tolerance Actions
Reregistration Division (7508P), Office
of Pesticide Programs, Environmental
AGENCY: Environmental Protection
Protection Agency, 1200 Pennsylvania
Agency (EPA).
Ave., NW., Washington, DC 20460–
ACTION: Final rule.
0001; telephone number: (703) 308–
SUMMARY: EPA is revoking certain
0048; e-mail address: smith.janetolerances for the herbicides linuron
scott@epa.gov.
and pebulate and the fungicide
SUPPLEMENTARY INFORMATION:
thiophanate–methyl. Also, EPA is
modifying certain tolerances for the
I. General Information
herbicides chlorpropham, linuron,
A. Does this Action Apply to Me?
asulam and the fungicide thiophanate–
methyl. In addition, EPA is establishing
You may be potentially affected by
new tolerances for the herbicides
this action if you are an agricultural
chlorpropham, linuron, asulam and the
producer, food manufacturer, or
fungicide thiophanate–methyl. The
pesticide manufacturer. Potentially
Caneberry .......................
Hop, dried cones ............
Lettuce, head ..................
Lychee1 ...........................
Potato .............................
Vegetable, cucurbit,
group 9 ........................
Vegetable, fruiting, group
8 ..................................
rfrederick on PROD1PC67 with RULES
regulatory actions in this document are
part of the Agency’s reregistration
program under the Federal Food, Drug,
and Cosmetic Act (FFDCA) section
408(q), as amended by the Food Quality
Protection Act (FQPA) of 1996.
DATES: This regulation is effective July
11, 2007. Objections and requests for
hearings must be received on or before
September 10, 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).
VerDate Aug<31>2005
14:57 Jul 10, 2007
4.0
7.0
4.0
1.0
0.05
Jkt 211001
ADDRESSES:
PO 00000
Frm 00018
Fmt 4700
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affected entities may include, but are
not limited to:
• Crop production (NAICS code 111),
e.g., agricultural workers; greenhouse,
nursery, and floriculture workers;
farmers.
• Animal production (NAICS code
112), e.g., cattle ranchers and farmers,
dairy cattle farmers, livestock farmers.
• Food manufacturing (NAICS code
311), e.g., agricultural workers; farmers;
greenhouse, nursery, and floriculture
workers; ranchers; pesticide applicators.
• Pesticide manufacturing (NAICS
code 32532), e.g., agricultural workers;
commercial applicators; farmers;
greenhouse, nursery, and floriculture
workers; residential users.
This listing is not intended to be
exhaustive, but rather 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–2006–0483 in the subject line on
the first page of your submission. All
requests must be in writing, and must be
E:\FR\FM\11JYR1.SGM
11JYR1
Agencies
[Federal Register Volume 72, Number 132 (Wednesday, July 11, 2007)]
[Rules and Regulations]
[Pages 37641-37646]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-13419]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2006-0331; FRL-8130-5]
Cymoxanil; Pesticide Tolerance
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes tolerances for residues of
cymoxanil in or on grape, hop, and caneberry. The Interregional
Research Project (IR-4) requested these tolerances under the Federal
Food, Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective July 11, 2007. Objections and
requests for hearings must be received on or before September 10, 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-2006-0331. To access the
electronic docket, go to https://www.regulations.gov, select ``Advanced
Search,'' then ``Docket Search.'' Insert the docket ID number where
indicated and select the ``Submit'' button. Follow the instructions on
the regulations.gov web site to view the docket index or access
available documents. All documents in the docket are listed in the
docket index available in regulations.gov. Although listed in the
index, some information is not publicly available, e.g., Confidential
Business Information (CBI) or other information whose disclosure is
restricted by statute. Certain other material, such as copyrighted
material, is not placed on the Internet and will be publicly available
only in hard copy form. Publicly available docket materials are
available in the electronic docket at https://www.regulations.gov, or,
if only available in hard copy, at the OPP Regulatory Public Docket in
Rm. S-4400, One Potomac Yard (South 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 Facility
telephone number is (703) 305-5805.
FOR FURTHER INFORMATION CONTACT: Shaja R. Brothers, Registration
Division (7505P), Office of Pesticide Programs, Environmental
Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-
0001; telephone number: (703) 308-3194; e-mail address:
brothers.shaja@epa.gov.
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does this Action Apply to Me?
You may be potentially affected by this action if you are an
agricultural producer, food manufacturer, or pesticide manufacturer.
Potentially affected entities may include, but are not limited to those
engaged in the following activities:
Crop production (NAICS code 111), e.g., agricultural
workers; greenhouse, nursery, and floriculture workers; farmers.
Animal production (NAICS code 112), e.g., cattle ranchers
and farmers, dairy cattle farmers, livestock farmers.
Food manufacturing (NAICS code 311), e.g., agricultural
workers; farmers; greenhouse, nursery, and floriculture workers;
ranchers; pesticide applicators.
Pesticide manufacturing (NAICS code 32532), e.g.,
agricultural workers; commercial applicators; farmers; greenhouse,
nursery, and floriculture workers; residential users.
This listing is not intended to be exhaustive, but rather to
provide a guide for readers regarding entities likely to be affected by
this action. Other types of entities not listed in this unit could also
[[Page 37642]]
be affected. The North American Industrial Classification System
(NAICS) codes have been provided to assist you and others in
determining whether this action might apply to certain entities. If you
have any questions regarding the applicability of this action to a
particular entity, consult the person listed under FOR FURTHER
INFORMATION CONTACT.
B. How Can I Access Electronic Copies of this Document?
In addition to accessing an electronic copy of this Federal
Register document through the electronic docket at https://
www.regulations.gov, you may access this Federal Register document
electronically through the EPA Internet under the ``Federal Register''
listings at https://www.epa.gov/fedrgstr. You may also access a
frequently updated electronic version of EPA's tolerance regulations at
40 CFR part 180 through the Government Printing Office's pilot e-CFR
site at https://www.gpoaccess.gov/ecfr.
C. Can I File an Objection or Hearing Request?
Under section 408(g) of the FFDCA, any person may file an objection
to any aspect of this regulation and may also request a hearing on
those objections. You must file your objection or request a hearing on
this regulation in accordance with the instructions provided in 40 CFR
part 178. To ensure proper receipt by EPA, you must identify docket ID
number EPA-HQ-OPP-2006-0331 in the subject line on the first page of
your submission. All requests must be in writing, and must be mailed or
delivered to the Hearing Clerk as required by 40 CFR part 178 on or
before September 10, 2007.
In addition to filing an objection or hearing request with the
Hearing Clerk as described in 40 CFR part 178, please submit a copy of
the filing that does not contain any CBI for inclusion in the public
docket that is described in ADDRESSES. Information not marked
confidential pursuant to 40 CFR part 2 may be disclosed publicly by EPA
without prior notice. Submit this copy, identified by docket ID number
EPA-HQ-OPP-2006-0331, 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 Facility telephone number is (703) 305-5805.
II. Petition for Tolerance
In the Federal Register of May 10, 2006, (71 FR 27247) (FRL-8067-
5), and November 15, 2006, (71 FR 66522) (FRL-8101-8) EPA issued
notices pursuant to section 408(d)(3) of the FFDCA, 21 U.S.C.
346a(d)(3), announcing the filing of pesticide petitions PP 5E7000
(grape and hop), and PP 6E7100 (caneberry) by the IR-4, 500 College
Road East, Suite 201 W, Princeton, NJ 08540. The petitions requested
that 40 CFR 180.503(a) be amended by establishing tolerances for
residues of the fungicide cymoxanil, in or on grape (east of the Rocky
Mountains) at 1.0 parts per million (ppm); hop, dried cones at 5.0 ppm;
and caneberry at 4.0 ppm. These notices referenced a summary of the
petitions prepared by Dupont, the registrant, which is available to the
public in the docket, https://www.regulations.gov. Comments were
received from a private citizen on the notice of filing for grape; and
hop, dried cones. EPA's response to comment is discussed in Unit IV.C.
III. Aggregate Risk Assessment and Determination of Safety
Section 408(b)(2)(A)(i) of the 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 the FFDCA defines ``safe'' to mean that ``there is
a reasonable certainty that no harm will result from aggregate exposure
to the pesticide chemical residue, including all anticipated dietary
exposures and all other exposures for which there is reliable
information.'' This includes exposure through drinking water and in
residential settings, but does not include occupational exposure.
Section 408(b)(2)(C) of the FFDCA requires EPA to give special
consideration to exposure of infants and children to the pesticide
chemical residue in establishing a tolerance and to ``ensure that there
is a reasonable certainty that no harm will result to infants and
children from aggregate exposure to the pesticide chemical
residue....'' These provisions were added to the FFDCA by the Food
Quality Protection Act (FQPA) of 1996.
Consistent with section 408(b)(2)(D) of the FFDCA, and the factors
specified in section 408(b)(2)(D), EPA has reviewed the available
scientific data and other relevant information in support of this
action. EPA has sufficient data to assess the hazards of and to make a
determination on aggregate exposure for the petitioned-for tolerance
for residues of cymoxanil on grape at 0.10 ppm; hop, dried cone at 7.0
ppm; and caneberry at 4.0 ppm. EPA's assessment of exposures and risks
associated with establishing these tolerances follow.
A. Toxicological Profile
EPA has evaluated the available toxicity data and considered its
validity, completeness, and reliability as well as the relationship of
the results of the studies to human risk. EPA has also considered
available information concerning the variability of the sensitivities
of major identifiable subgroups of consumers, including infants and
children. Specific information on the studies received and the nature
of the adverse effects caused by cymoxanil 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 at https://
www.regulations.gov. The referenced document is available in the docket
established by this action, which is described under ADDRESSES, and is
identified as EPA-HQ-OPP-2006-0331 in that docket. Please refer to the
Human Health Risk Assessment for Cymoxanil for New section 3 Uses in/on
Grapes (East of the Rocky Mountains); Hop, dried cones; and Caneberry
Subgroup 13A on pages 16-19.
B. Toxicological Endpoints
For hazards that have a threshold below which there is no
appreciable risk, the toxicological level of concern (LOC) is derived
from the highest dose at which no adverse effects are observed (the
NOAEL) in the toxicology study identified as appropriate for use in
risk assessment. However, if a NOAEL cannot be determined, the lowest
dose at which adverse effects of concern are identified (the LOAEL) is
sometimes used for risk assessment. Uncertainty/safety factors (UF) are
used in conjunction with the LOC to take into account uncertainties
inherent in the extrapolation from laboratory animal data to humans and
in the variations in sensitivity among members of the human population
as well as other
[[Page 37643]]
unknowns. Safety is assessed for acute and chronic risks by comparing
aggregate exposure to the pesticide to the acute population adjusted
dose (``aPAD'') and chronic population adjusted dose (``cPAD''). The
aPAD and cPAD are calculated by dividing the LOC by all applicable
uncertainty/safety factors. Short-term, intermediate, and long-term
risks are evaluated by comparing aggregate exposure to the LOC to
ensure that the margin of exposure (``MOE'') called for by the product
of all applicable uncertainty/safety factors is not exceeded.
For non-threshold risks, the Agency assumes that any amount of
exposure will lead to some degree of risk and estimates risk in terms
of the probability of occurrence of additional adverse cases.
Generally, cancer risks are considered non-threshold. For more
information on the general principles EPA uses in risk characterization
and a complete description of the risk assessment process, see https://
www.epa.gov/fedrgstr/EPA-PEST/1997/November/Day-26/p30948.htm.
A summary of the toxicological endpoints for cymoxanil used for
human risk assessment can be found at www.regulations.gov in the Human
Health Risk Assessment for Cymoxanil for New section 3 Uses in/on
Grapes (East of the Rocky Mountains); Hop, dried cone; and Caneberry
Subgroup 13A, pages 19-20 in Docket ID EPA-HQ-OPP-2006-0331.
C. Exposure Assessment
1. Dietary exposure from food and feed uses. In evaluating dietary
exposure to cymoxanil, EPA considered exposure under the petitioned-for
tolerances as well as all existing cymoxanil tolerances in (40 CFR
180.503(a)). EPA assessed dietary exposures from cymoxanil 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. An acute dietary exposure
assessment was performed for females 13-49 years old only, since an
acute endpoint of concern was not identified for the general U.S.
population. In estimating acute dietary exposure, EPA used food
consumption information from the United States Department of
Agriculture (USDA) 1994-1996, and 1998 Nationwide Continuing Surveys of
Food Intake by Individuals (CSFII). As to residue levels in food, EPA
assumed that cymoxanil residues were present in all registered and
proposed food commodities at tolerance levels, and 100 percent crop
treated (PCT) for all commodities. Dietary Exposure Evaluation Model
(DEEM) version 7.81 default processing factors were used for all
registered and proposed commodities except for grape juice and raisin.
ii. Chronic exposure. In conducting the chronic dietary exposure
assessment EPA used the food consumption data from the USDA 1994-1996
and 1998 Nationwide CSFII. As to residue levels in food, EPA used
tolerance level residues for all commodities except lettuce, hops and
grapes. Average residues from field trials were used for lettuce, hops
and grapes. DEEM default processing factors were used for all
commodities except grapes. Processing factors for grape juice (1.4x)
and raisins (1x) were derived from grape processing data. Exposure
estimates were further refined using screening-level PCT (% CT) data
for several registered commodities. For all other commodities,
including the proposed new uses, 100 %CT was assumed.
iii. Cancer. EPA has classified cymoxanil as a ``not likely'' human
carcinogen. Therefore, a cancer dietary exposure analysis was not
performed.
iv. Anticipated residue and PCT information. Section 408(b)(2)(E)
of the FFDCA authorizes EPA to use available data and information on
the anticipated residue levels of pesticide residues in food and the
actual levels of pesticide residues that have been measured in food. If
EPA relies on such information, EPA must pursuant to section 408(f)(1)
require that data be provided 5 years after the tolerance is
established, modified, or left in effect, demonstrating that the levels
in food are not above the levels anticipated. For the present action,
EPA will issue such data call-ins as are required by section
408(b)(2)(E) of the FFDCA and authorized under section 408(f)(1) of the
FFDCA. Data will be required to be submitted no later than 5 years from
the date of issuance of this tolerance.
Section 408(b)(2)(F) of the FFDCA states that the Agency may use
data on the actual percent of food treated for assessing chronic
dietary risk only if:
a. The data used are reliable and provide a valid basis to show
what percentage of the food derived from such crop is likely to contain
such pesticide residue;
b. The exposure estimate does not underestimate exposure for any
significant subpopulation group; and
c. Data are available on pesticide use and food consumption in a
particular area, the exposure estimate does not understate exposure for
the population in such area. In addition, the Agency must provide for
periodic evaluation of any estimates used. To provide for the periodic
evaluation of the estimate of PCT as required by section 408(b)(2)(F)
of the FFDCA, EPA may require registrants to submit data on PCT.
The Agency used PCT information as follows: Cucumber, head lettuce,
pepper, potato, and tomato at 10%; pumpkin, squash, and watermelon at
1%.
EPA uses an average PCT for chronic dietary risk analysis. The
average PCT figure for each existing use is derived by combining
available federal, state, and private market survey data for that use,
averaging by year, averaging across all years, and rounding up to the
nearest multiple of five percent except for those situations in which
the average PCT is less than one. In those cases <1% is used as the
average and <2.5% is used as the maximum. EPA uses a maximum PCT for
acute dietary risk analysis. The maximum PCT figure is the single
maximum value reported overall from available federal, state, and
private market survey data on the existing use, across all years, and
rounded up to the nearest multiple of five percent. In most cases, EPA
uses available data from USDA/National Agricultural Statistics Service
(USDA/NASS), Proprietary Market Surveys, and the National Center for
Food and Agriculture Policy (NCFAP) for the most recent six years.
The Agency believes that the three conditions have been met. With
respect to Condition 1, PCT estimates are derived from Federal and
private market survey data, which are reliable and have a valid basis.
The Agency is reasonably certain that the percentage of the food
treated is not likely to be an underestimation. As to Conditions 2 and
3, regional consumption information and consumption information for
significant subpopulations is taken into account through EPA's
computer-based model for evaluating the exposure of significant
subpopulations including several regional groups. Use of this
consumption information in EPA's risk assessment process ensures that
EPA's exposure estimate does not understate exposure for any
significant subpopulation group and allows the Agency to be reasonably
certain that no regional population is exposed to residue levels higher
than those estimated by the Agency. Other than the data available
through national food consumption surveys, EPA does not have available
information on the regional consumption of food to which cymoxanil may
be applied in a particular area.
[[Page 37644]]
2. Dietary exposure from drinking water. The Agency lacks
sufficient monitoring data to complete a comprehensive dietary exposure
analysis and risk assessment for cymoxanil in drinking water. Because
the Agency does not have comprehensive monitoring data, drinking water
concentration estimates are made by reliance on simulation or modeling
taking into account data on the environmental fate characteristics of
cymoxanil. 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.
The Agency calculated screening level surface and ground water
estimates for cymoxanil using FQPA Index Reservoir Screening Tool
(FIRST (version 1.0)), and SCI-GROW (Screening Concentration In GROund
Water) models, respectively. The proposed application rates for use on
grape and hop are higher than the rates evaluated previously. Estimated
drinking water concentrations were estimated based on the newly
proposed application rate for grape (0.25 lbs per acre, 10 times),
which was the highest application rate reported for the new proposed
uses.
Based on the FIRST and SCI-GROW models, the estimated environmental
concentrations (EECs) of cymoxanil for acute and chronic exposures are
0.019 parts per billion (ppb), and 0.0001 ppb, respectively for surface
water. The EECs for groundwater (acute and chronic) are estimated to be
0.000003 ppb.
Modeled estimates of drinking water concentrations were directly
entered into the dietary exposure model. For acute dietary risk
assessment, the water concentration value of 0.019 ppb was used to
access the contribution to drinking water. For chronic dietary risk
assessment, the water concentration of value 0.0001 ppb was used to
access the contribution to drinking water.
3. From non-dietary exposure. The term ``residential exposure'' is
used in this document to refer to non-occupational, non-dietary
exposure (e.g., for lawn and garden pest control, indoor pest control,
termiticides, and flea and tick control on pets). Cymoxanil 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 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 cymoxanil and any other
substances and cymoxanil 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 cymoxanil has a common
mechanism of toxicity with other substances. For information regarding
EPA's efforts to determine which chemicals have a common mechanism of
toxicity and to evaluate the cumulative effects of such chemicals, see
EPA's website at https://www.epa.gov/pesticides/cumulative.
D. Safety Factor for Infants and Children
1. In general. Section 408 of the FFDCA provides that EPA shall
apply an additional (``10X'') tenfold margin of safety for infants and
children in the case of threshold effects to account for prenatal and
postnatal toxicity and the completeness of the database on toxicity and
exposure unless EPA determines based on reliable data that a different
margin of safety will be safe for infants and children. This additional
margin of safety is commonly referred to as the FQPA safety factor. In
applying this provision, EPA either retains the default value of 10X
when reliable data do not support the choice of a different factor, or,
if reliable data are available, EPA uses a different additional FQPA
safety factor value based on the use of traditional uncertainty/safety
factors and/or special FQPA safety factors, as appropriate.
2. Prenatal and postnatal sensitivity. There is an indication of
increased susceptibility (qualitative and quantitative) of rats and
rabbits to in utero exposure to cymoxanil. In the rat developmental
toxicity study, decreased fetal body weights and skeletal malformations
were observed at 25 mg/kg/day LOAEL, which is below the maternal
toxicity of 75 mg/kg/day LOAEL. In the rabbit developmental study
increased skeletal malformations were observed at 8 mg/kg/day LOAEL,
also below the maternal NOAEL of 32 mg/kg/day. In the 2-generation
reproduction study there was an indication of increased qualitative
susceptibility in the offspring, since there was decreased pup
viability at a dose that produced less severe effects in maternal
animals.
3. Conclusion. EPA has determined that reliable data show that it
would be safe for the infants and children FQPA safety factor to be
reduced to 1X for acute dietary exposures. The EPA believes that this
will be protective of infants and children based on the following
findings:
i. The toxicity database for cymoxanil is complete for dietary risk
assessment.
ii. Although there is qualitative evidence of increased
susceptibility in the prenatal developmental studies in rats and
rabbits, the risk assessment team did not identify any residual
uncertainties after establishing toxicity endpoints and traditional
uncertainty factors to be used in the risk assessment of cymoxanil. The
degree of concern for pre-and/or postnatal toxicity is low.
iii. There are no residual uncertainties identified in the exposure
databases. The acute dietary food exposure assessment was performed
based on 100 PCT, tolerance-level residues, and DEEM default processing
factors for all registered and proposed commodities. Conservative
ground and surface water modeling estimates were also used and
incorporated directly in the DEEM analysis. The Agency has determined
with reasonably certainty that the identified assessment will not
underestimate the exposure and risks posed by cymoxanil. However, the
10X FQPA safety factor was retained for chronic dietary exposure
because a LOAEL was used to extrapolate a NOAEL for the chronic
toxicity study in the dog.
E. Aggregate Risks and Determination of Safety
Safety is assessed for acute and chronic risks by comparing
aggregate exposure to the pesticide to the acute population adjusted
dose (``aPAD'') and chronic population adjusted dose (``cPAD''). The
aPAD and cPAD are calculated by dividing the LOC by all applicable
uncertainty/safety factors. For linear cancer risks, EPA calculates the
probability of additional cancer cases given aggregate exposure. Short-
term, intermediate, and long-term risks are evaluated by comparing
aggregate exposure to the LOC to ensure that the margin of exposure
(``MOE'') called for by the product of all applicable uncertainty/
safety factors is not exceeded.
1. Acute risk. Using the exposure assumptions discussed in this
unit for acute exposure, the acute dietary exposure from food and water
to cymoxanil will occupy 72% of the aPAD for the population group
(females 13-49 years old).
2. Chronic risk. Using the exposure assumptions described in this
unit for chronic exposure, EPA has concluded
[[Page 37645]]
that exposure to cymoxanil from food and water will utilize 51% of the
cPAD for children 1-2 years old, the subpopulation group with greatest
exposure. There are no residential uses for cymoxanil that result in
chronic residential exposure to cymoxanil.
3. Short and intermediate-term risks. Short and Intermediate-term
aggregate exposures takes into account residential exposure plus
chronic exposure to food and water (considered to be a background
exposure level). Cymoxanil 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. EPA has classified
cymoxanil as a ``not likely'' human carcinogen. Therefore, cymoxanil 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, or to infants and children from aggregate
exposure to cymoxanil residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
Adequate enforcement methodologies (high performance liquid
chromatography with ultra violet detection (HPLC/UV) and (HPLC/MS)
using (mass spectroscopy) on grape, caneberry, and hop, respectively)
are available to enforce the tolerance expression. The methods 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 for CODEX maximum residue levels established for
cymoxanil on grape; hop, dried cone; and caneberry.
C. Response to Comments
Comments were submitted by a private citizen who opposed the
establishment of cymoxanil tolerances for the following reasons:
1. The availability of numerous products previously registered for
the same purpose in which the new cymoxanil tolerances are intended,
and
2. Cymoxanil is toxic to aquatic plants, bees, and birds, and
therefore has potential harmful effects on the environment. These
comments are considered irrelevant because the safety standard for
approving tolerances under section 408 of the FFDCA focuses on
potential harms to human health and does not permit consideration of
effects on the environment or the availability of other registered
products.
V. Conclusion
The proposed hop, dried cone tolerance was revised from 5.0 to 7.0
ppm based on submitted field trial residues. For grape, the proposed
tolerance of 1.0 was lowered to 0.10 ppm. The residue field trials
indicate 0.10 ppm as the appropriate regional tolerance for grape.
Therefore, tolerances are established for residues of cymoxanil, 2-
cyano-N-[(ethylamino)carbonyl]-2-(methoxyimino) acetamide in or on
grape (east of the Rocky Mountains) at 0.10 ppm; hop, dried cone at 7.0
ppm; and caneberry at 4.0 ppm.
VI. Statutory and Executive Order Reviews
This final rule establishes a tolerance under section 408(d) of the
FFDCA in response to a petition submitted to the Agency. The Office of
Management and Budget (OMB) has exempted these types of actions from
review under Executive Order 12866, entitled Regulatory Planning and
Review (58 FR 51735, October 4, 1993). Because this rule has been
exempted from review under Executive Order 12866, this rule is not
subject to Executive Order 13211, Actions Concerning Regulations That
Significantly Affect Energy Supply, Distribution, or Use (66 FR 28355,
May 22, 2001) or Executive Order 13045, entitled Protection of Children
from Environmental Health Risks and Safety Risks (62 FR 19885, April
23, 1997). This final rule does not contain any information collections
subject to OMB approval under the Paperwork Reduction Act (PRA), 44
U.S.C. 3501 et seq., nor does it require any special considerations
under Executive Order 12898, entitled Federal Actions to Address
Environmental Justice in Minority Populations and Low-Income
Populations (59 FR 7629, February 16, 1994).
Since tolerances and exemptions that are established on the basis
of a petition under section 408(d) of the FFDCA, such as the tolerance
in this final rule, do not require the issuance of a proposed rule, the
requirements of the Regulatory Flexibility Act (RFA) (5 U.S.C. 601 et
seq.) do not apply.
This final rule directly regulates growers, food processors, food
handlers and food retailers, not States or tribes, nor does this action
alter the relationships or distribution of power and responsibilities
established by Congress in the preemption provisions of section
408(n)(4) of the FFDCA. As such, the Agency has determined that this
action will not have a substantial direct effect on States or tribal
governments, on the relationship between the national government and
the States or tribal governments, or on the distribution of power and
responsibilities among the various levels of government or between the
Federal Government and Indian tribes. Thus, the Agency has determined
that Executive Order 13132, entitled Federalism (64 FR 43255, August
10, 1999) and Executive Order 13175, entitled Consultation and
Coordination with Indian Tribal Governments (65 FR 67249, November 6,
2000) do not apply to this rule. In addition, This rule does not impose
any enforceable duty or contain any unfunded mandate as described under
Title II of the Unfunded Mandates Reform Act of 1995 (UMRA) (Public Law
104-4).
This action does not involve any technical standards that would
require Agency consideration of voluntary consensus standards pursuant
to section 12(d) of the National Technology Transfer and Advancement
Act of 1995 (NTTAA), Public Law 104-113, section 12(d) (15 U.S.C. 272
note).
VII. Congressional Review Act
The Congressional Review Act, 5 U.S.C. 801 et seq., generally
provides that before a rule may take effect, the agency promulgating
the rule must submit a rule report to each House of the Congress and to
the Comptroller General of the United States. EPA will submit a report
containing this rule and 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: July 3, 2007.
Daniel J. Rosenblatt,
Acting Director, Registration Division, Office of Pesticide Programs.
0
Therefore, 40 CFR chapter I is amended as follows:
[[Page 37646]]
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 180.503 is amended by revising the table in paragraph (a);
and by adding text to paragraph (c) to read as follows:
Sec. 180.503 Cymoxanil, tolerance for residues.
(a) * * *
------------------------------------------------------------------------
Commodity Parts per million
------------------------------------------------------------------------
Caneberry............................................ 4.0
Hop, dried cones..................................... 7.0
Lettuce, head........................................ 4.0
Lychee\1\............................................ 1.0
Potato............................................... 0.05
Vegetable, cucurbit, group 9......................... 0.05
Vegetable, fruiting, group 8......................... 0.2
------------------------------------------------------------------------
\1\ There is no U.S. registration for lychee.
* * * * *
(c) Tolerances with a regional registration. Tolerances with a
regional registration as defined in Sec. 180.1(n) are established for
the residues of the fungicide cymoxanil, 2-cyano -N-
[(ethylamino)carbonyl]-2-(methoxyimino) acetamide) in or on the raw
agricultural commodities:
------------------------------------------------------------------------
Commodity Parts per million
------------------------------------------------------------------------
Grape................................................ 0.10
------------------------------------------------------------------------
* * * * *
[FR Doc. E7-13419 Filed 7-10-07; 8:45 am]
BILLING CODE 6560-50-S