Isofetamid; Pesticide Tolerances for Emergency Exemptions, 70970-70974 [2016-24932]
Download as PDF
70970
Federal Register / Vol. 81, No. 199 / Friday, October 14, 2016 / Rules and Regulations
SUPPLEMENTARY INFORMATION:
ENVIRONMENTAL PROTECTION
AGENCY
I. General Information
40 CFR Part 180
[EPA–HQ–OPP–2016–0429; FRL–9952–59]
Isofetamid; Pesticide Tolerances for
Emergency Exemptions
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This regulation establishes
time-limited tolerances for residues of
the fungicide isofetamid, N-[1,1dimethyl-2-[2-methyl-4-(1methylethoxy)phenyl]-2-oxoethyl]-3methyl-2-thiophenecarboxamide, in or
on caneberry subgroup 13–07A and
bushberry subgroup 13–07B. This action
is in response to EPA’s granting of an
emergency exemption, under the
Federal Insecticide, Fungicide, and
Rodenticide Act (FIFRA) authorizing
use of the pesticide on caneberry
subgroup 13–07A and bushberry
subgroup 13–07B. This regulation
establishes maximum permissible levels
for residues of isofetamid in or on these
commodities. The time-limited
tolerances expire on December 31, 2019.
DATES: This regulation is effective
October 14, 2016. Objections and
requests for hearings must be received
on or before December 13, 2016, 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: The docket for this action,
identified by docket identification (ID)
number EPA–HQ–OPP–2016–0429, is
available at https://www.regulations.gov
or at the Office of Pesticide Programs
Regulatory Public Docket (OPP Docket)
in the Environmental Protection Agency
Docket Center (EPA/DC), West William
Jefferson Clinton Bldg., Rm. 3334, 1301
Constitution Ave. NW., Washington, DC
20460–0001. The Public Reading Room
is open from 8:30 a.m. to 4:30 p.m.,
Monday through Friday, excluding legal
holidays. The telephone number for the
Public Reading Room is (202) 566–1744,
and the telephone number for the OPP
Docket is (703) 305–5805. Please review
the visitor instructions and additional
information about the docket available
at https://www.epa.gov/dockets.
FOR FURTHER INFORMATION CONTACT:
Michael L. Goodis, Registration Division
(7505P), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave. NW., Washington,
DC 20460–0001; main telephone
number: (703) 305–7090; email address:
RDFRNotices@epa.gov.
ehiers on DSK5VPTVN1PROD with RULES
SUMMARY:
VerDate Sep<11>2014
17:18 Oct 13, 2016
Jkt 241001
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. The following
list of North American Industrial
Classification System (NAICS) codes is
not intended to be exhaustive, but rather
provides a guide to help readers
determine whether this document
applies to them. Potentially affected
entities may include:
• Crop production (NAICS code 111).
• Animal production (NAICS code
112).
• Food manufacturing (NAICS code
311).
• Pesticide manufacturing (NAICS
code 32532).
B. How can I get electronic access to
other related information?
You may access a frequently updated
electronic version of 40 CFR part 180
through the Government Printing
Office’s e-CFR site at https://
www.ecfr.gov/cgi-bin/textidx?&c=ecfr&tpl=/ecfrbrowse/Title40/
40tab_02.tpl.
C. How can I file an objection or hearing
request?
Under section 408(g) of the Federal
Food, Drug, and Cosmetic Act (FFDCA),
21 U.S.C. 346a, 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–2016–0429 in the subject line on
the first page of your submission. All
objections and requests for a hearing
must be in writing, and must be
received by the Hearing Clerk on or
before December 13, 2016. Addresses for
mail and hand delivery of objections
and hearing requests are provided in 40
CFR 178.25(b).
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 (excluding
any Confidential Business Information
(CBI)) for inclusion in the public docket.
Information not marked confidential
pursuant to 40 CFR part 2 may be
disclosed publicly by EPA without prior
notice. Submit the non-CBI copy of your
objection or hearing request, identified
by docket ID number EPA–HQ–OPP–
2016–0429, by one of the following
methods:
PO 00000
Frm 00048
Fmt 4700
Sfmt 4700
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the online
instructions for submitting comments.
Do not submit electronically any
information you consider to be CBI or
other information whose disclosure is
restricted by statute.
• Mail: OPP Docket, Environmental
Protection Agency Docket Center (EPA/
DC), (28221T), 1200 Pennsylvania Ave.
NW., Washington, DC 20460–0001.
• Hand Delivery: To make special
arrangements for hand delivery or
delivery of boxed information, please
follow the instructions at https://
www.epa.gov/dockets/contacts.html.
Additional instructions on commenting
or visiting the docket, along with more
information about dockets generally, is
available at https://www.epa.gov/
dockets.
II. Background and Statutory Findings
EPA, on its own initiative, in
accordance with FFDCA sections 408(e)
and 408(l)(6) of, 21 U.S.C. 346a(e) and
346a(1)(6), is establishing time-limited
tolerances for the fungicide, isofetamid,
N-[1,1-dimethyl-2-[2-methyl-4-(1methylethoxy)phenyl]-2-oxoethyl]-3methyl-2-thiophenecarboxamide, in or
on caneberry subgroup 13–07A at 4.0
parts per million (ppm) and bushberry
subgroup 13–07B at 5.0 ppm. These
time-limited tolerances expire on
December 31, 2019.
Section 408(l)(6) of FFDCA requires
EPA to establish a time-limited
tolerance or exemption from the
requirement for a tolerance for pesticide
chemical residues in food that will
result from the use of a pesticide under
an emergency exemption granted by
EPA under FIFRA section 18. Such
tolerances can be established without
providing notice or period for public
comment. EPA does not intend for its
actions on FIFRA section 18 related
time-limited tolerances to set binding
precedents for the application of FFDCA
section 408 and the safety standard to
other tolerances and exemptions.
Section 408(e) of FFDCA allows EPA to
establish a tolerance or an exemption
from the requirement of a tolerance on
its own initiative, i.e., without having
received any petition from an outside
party.
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
E:\FR\FM\14OCR1.SGM
14OCR1
Federal Register / Vol. 81, No. 199 / Friday, October 14, 2016 / Rules and Regulations
ehiers on DSK5VPTVN1PROD with RULES
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 . . . .’’
Section 18 of FIFRA authorizes EPA
to exempt any Federal or State agency
from any provision of FIFRA, if EPA
determines that ‘‘emergency conditions
exist which require such exemption.’’
EPA has established regulations
governing such emergency exemptions
in 40 CFR part 166.
III. Emergency Exemption for
Isofetamid on Caneberry Subgroup 13–
07A and Bushberry Subgroup 13–07B
and FFDCA Tolerances
The Washington State Department of
Agriculture (WSDA) requested an
emergency exemption for the use of
isofetamid on blackberries, blueberries,
and raspberries to control gray mold
caused by Botrytis cinerea. Botrytis
cinerea has a very wide host range
which causes gray mold that becomes
visible on developed fruit just prior to
harvest. According to WSDA, Botrytis
cinerea developed fungicide resistance
and coupled with the unseasonably
warm weather in Washington State,
created conditions favorable for gray
mold outbreaks resulting in crop
damage and yield loss. After having
reviewed the submission, EPA
determined that an emergency condition
exists for Washington, and that the
criteria for approval of an emergency
exemption are met. EPA has authorized
a specific exemption under FIFRA
section 18 for the use of isofetamid on
blueberry, blackberry, and raspberry for
control of gray mold (Botrytis cinerea) in
Washington.
As part of its evaluation of the
emergency exemption application, EPA
assessed the potential risks presented by
residues of isofetamid in or on
caneberry subgroup 13–07A and
bushberry subgroup 13–07B. In doing
so, EPA considered the safety standard
in FFDCA section 408(b)(2), and EPA
decided that the necessary tolerance
under FFDCA section 408(l)(6) would be
consistent with the safety standard and
VerDate Sep<11>2014
13:00 Oct 13, 2016
Jkt 241001
with FIFRA section 18. Consistent with
the need to move quickly on the
emergency exemption in order to
address an urgent non-routine situation
and to ensure that the resulting food is
safe and lawful, EPA is issuing this
tolerance without notice and
opportunity for public comment as
provided in FFDCA section 408(l)(6).
Although these time-limited tolerances
expire on December 31, 2019, under
FFDCA section 408(l)(5), residues of the
pesticide not in excess of the amounts
specified in the tolerance remaining in
or on caneberry subgroup 13–07A and
bushberry subgroup 13–07B after that
date will not be unlawful, provided the
pesticide was applied in a manner that
was lawful under FIFRA, and the
residues do not exceed a level that was
authorized by these time-limited
tolerances at the time of that
application. EPA will take action to
revoke these time-limited tolerances
earlier if any experience with, scientific
data on, or other relevant information
on this pesticide indicate that the
residues are not safe.
Because these time-limited tolerances
are being approved under emergency
conditions, EPA has not made any
decisions about whether isofetamid
meets FIFRA’s registration requirements
for use on caneberry subgroup 13–07A
and bushberry subgroup 13–07B or
whether permanent tolerances for this
use would be appropriate. Under these
circumstances, EPA does not believe
that this time-limited tolerance decision
serves as a basis for registration of
isofetamid by a State for special local
needs under FIFRA section 24(c). Nor
does this tolerance by itself serve as the
authority for persons in any State other
than Washington to use this pesticide
on the applicable crops under FIFRA
section 18 absent the issuance of an
emergency exemption applicable within
that State. For additional information
regarding the emergency exemption for
isofetamid, contact the Agency’s
Registration Division at the address
provided under FOR FURTHER
INFORMATION CONTACT.
IV. Aggregate Risk Assessment and
Determination of Safety
Section 408(b)(2)(A)(i) of FFDCA
allows EPA to establish a tolerance (the
legal limit for a pesticide chemical
residue in or on a food) only if EPA
determines that the tolerance is ‘‘safe.’’
Section 408(b)(2)(A)(ii) of FFDCA
defines ‘‘safe’’ to mean that ‘‘there is a
reasonable certainty that no harm will
result from aggregate exposure to the
pesticide chemical residue, including
all anticipated dietary exposures and all
other exposures for which there is
PO 00000
Frm 00049
Fmt 4700
Sfmt 4700
70971
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 . . . .’’
Consistent with the factors specified
in FFDCA section 408(b)(2)(D), EPA has
reviewed the available scientific data
and other relevant information in
support of this action. EPA has
sufficient data to assess the hazards of
and to make a determination on
aggregate exposure expected as a result
of this emergency exemption request
and the time-limited tolerances for
isofetamid, N-[1,1-dimethyl-2-[2methyl-4-(1-methylethoxy)phenyl]-2oxoethyl]-3-methyl-2thiophenecarboxamide, on caneberry
subgroup 13–07A at 4.0 ppm and
bushberry subgroup 13–07B at 5.0 ppm.
EPA’s assessment of exposures and risks
associated with establishing timelimited tolerances follows.
A. Toxicological Points of Departure/
Levels of Concern
Once a pesticide’s toxicological
profile is determined, EPA identifies
toxicological points of departure (POD)
and levels of concern to use in
evaluating the risk posed by human
exposure to the pesticide. For hazards
that have a threshold below which there
is no appreciable risk, the toxicological
POD is used as the basis for derivation
of reference values for risk assessment.
PODs are developed based on a careful
analysis of the doses in each
toxicological study to determine the
dose at which no adverse effects are
observed (the NOAEL) and the lowest
dose at which adverse effects of concern
are identified (the LOAEL). Uncertainty/
safety factors are used in conjunction
with the POD to calculate a safe
exposure level—generally referred to as
a population-adjusted dose (PAD) or a
reference dose (RfD)—and a safe margin
of exposure (MOE). For non-threshold
risks, the Agency assumes that any
amount of exposure will lead to some
degree of risk. Thus, the Agency
estimates risk in terms of the probability
of an occurrence of the adverse effect
expected in a lifetime. For more
information on the general principles
EPA uses in risk characterization and a
complete description of the risk
assessment process, see https://
www2.epa.gov/pesticide-science-and-
E:\FR\FM\14OCR1.SGM
14OCR1
70972
Federal Register / Vol. 81, No. 199 / Friday, October 14, 2016 / Rules and Regulations
ehiers on DSK5VPTVN1PROD with RULES
assessing-pesticide-risks/assessinghuman-health-risk-pesticides.
A summary of the toxicological
endpoints for isofetamid used for
human risk assessment is discussed in
Unit III.B of the final rule published in
the Federal Register of July 30, 2015 (80
FR 45438) (FRL–9923–86).
B. Exposure Assessment
1. Dietary exposure from food and
feed uses. In evaluating dietary
exposure to isofetamid, EPA considered
exposure under the time-limited
tolerances established by this action as
well as all existing isofetamid tolerances
in 40 CFR 180.681. EPA assessed dietary
exposures from isofetamid in food as
follows:
i. Acute exposure. No acute effects
were identified in the toxicological
studies for isofetamid; therefore, a
quantitative acute dietary exposure
assessment is unnecessary.
ii. Chronic exposure. In conducting
the chronic dietary exposure assessment
EPA used the DEEM–FCID, Version 3.16
software with 2003–2008 food
consumption data from the USDA’s
National Health and Nutrition
Examination Survey, What We Eat in
America (NHANES/WWEIA). As to
residue levels in food, EPA evaluated
the combined residues of parent
isofetamid and its metabolite GPTC (N[l,l-dimethyl-2-(4-b-Dglucopyranosyloxy-2-methylphenyl)-2oxoethyl]-3-methyl-2thiophenecarboxamide). EPA’s chronic
dietary exposure assessment is based on
mean residue levels found in field trials
for each of the crops on which
isofetamid is used, using empirical and
default processing factors as available,
and assuming 100 percent crop treated
(PCT).
iii. Cancer. Based on the data
summarized in Unit IV.A., EPA has
concluded that isofetamid does not pose
a cancer risk to humans. Therefore, a
dietary exposure assessment for the
purpose of assessing cancer risk is
unnecessary.
iv. Anticipated residue and percent
crop treated (PCT) information. EPA did
not use crop-specific PCT information
in the dietary assessment for isofetamid.
EPA assumed that for each food
commodity on which isofetamid is
used, 100% of the commodity has
combined residues of parent isofetamid
and GPTC equal to the mean field trial
residues.
2. Dietary exposure from drinking
water. The Agency used screening level
water exposure models in the dietary
exposure analysis and risk assessment
for isofetamid in drinking water. These
simulation models take into account
VerDate Sep<11>2014
13:00 Oct 13, 2016
Jkt 241001
data on the physical, chemical, and fate/
transport characteristics of isofetamid.
Further information regarding EPA
drinking water models used in pesticide
exposure assessment can be found at
https://www2.epa.gov/pesticide-scienceand-assessing-pesticide-risks/aboutwater-exposure-models-used-pesticide.
Based on the Pesticide Flooded
Application Model (PFAM) and the
Pesticide Root Zone Model Ground
Water (PRZM GW), the estimated
drinking water concentrations (EDWCs)
of isofetamid for chronic exposures for
non-cancer assessments are estimated to
be 110 ppb for surface water and 43 ppb
for ground water.
Modeled estimates of drinking water
concentrations were directly entered
into the dietary exposure model. For
chronic dietary risk assessment, the
water concentration of value 110 parts
per billion (ppb) was used to assess 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).
Isofetamid is currently registered for
the following uses that could result in
residential exposures: Turfgrass
including golf courses, residential
lawns, and recreational turfgrass. Since
there may be residential use sites,
residential handler exposure and risk
estimates were calculated for all
possible residential exposure scenarios.
Given that there is no dermal toxicity
concern in regard to isofetamid, the
residential handler assessment only
includes the inhalation route of
exposure. Residential handler exposure
is expected to be short-term in duration
as a maximum of eight applications are
allowed per year. Thus, intermediateterm exposures are not likely because of
the intermittent nature of applications
by homeowners. Unit exposure values
and estimates for area treated or amount
handled were taken from the Agency’s
2012 Standard Operating Procedures for
Residential Pesticide Exposure
Assessment (Section 3: Lawns/Turf).
The algorithms used to estimate
exposure and dose for residential
handlers can be found in the 2012
Residential SOPs (Section 3: Lawns/
Turf). For all residential exposure
scenarios, isofetamid risk estimates are
not of concern. Short-term inhalation
MOEs range from 850,000 to 18,000,000.
Further information regarding EPA
standard assumptions and generic
inputs for residential exposures may be
found at: https://www2.epa.gov/
pesticide-science-and-assessing-
PO 00000
Frm 00050
Fmt 4700
Sfmt 4700
pesticide-risks/standard-operatingprocedures-residential-pesticide.
4. Cumulative effects from substances
with a common mechanism of toxicity.
Section 408(b)(2)(D)(v) of FFDCA
requires that, when considering whether
to establish, modify, or revoke a
tolerance, the Agency consider
‘‘available information’’ concerning the
cumulative effects of a particular
pesticide’s residues and’’ other
substances that have a common
mechanism of toxicity.’’
EPA has not found isofetamid to share
a common mechanism of toxicity with
any other substances, and isofetamid
does not appear to produce a toxic
metabolite produced by other
substances. For the purposes of this
tolerance action, therefore, EPA has
assumed that isofetamid does not have
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 Web site at https://
www2.epa.gov/pesticide-science-andassessing-pesticide-risks/cumulativeassessment-risk-pesticides.
C. Safety Factor for Infants and Children
1. In general. Section 408(b)(2)(C) of
FFDCA provides that EPA shall apply
an additional tenfold (10X) 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
Food Quality Protection Act Safety
Factor (FQPA SF). In applying this
provision, EPA either retains the default
value of 10X, or uses a different
additional Safety Factor (SF) when
reliable data available to EPA support
the choice of a different factor.
2. Prenatal and postnatal sensitivity.
There is no evidence of developmental
toxicity or reproductive susceptibility
associated with isofetamid, and there
are no residual uncertainties concerning
pre- or post-natal toxicity or exposure.
3. Conclusion. EPA has determined
that reliable data show that the safety of
infants and children would be
adequately protected if the FQPA SF
were reduced to 1X for isofetamid. That
decision is based on the following
findings:
i. The toxicity database for isofetamid
is complete.
ii. There is no indication that
isofetamid is a neurotoxic chemical and
E:\FR\FM\14OCR1.SGM
14OCR1
Federal Register / Vol. 81, No. 199 / Friday, October 14, 2016 / Rules and Regulations
ehiers on DSK5VPTVN1PROD with RULES
there is no need for a developmental
neurotoxicity study or additional
Uncertainty Factors (UF) to account for
neurotoxicity.
iii. There is no evidence that
isofetamid results in increased
susceptibility in in utero rats or rabbits
in the prenatal developmental studies or
in young rats in the 2-generation
reproduction study.
iv. There are no residual uncertainties
identified in the exposure databases.
The dietary food exposure assessments
were performed based on 100 PCT and
average (mean) level field trial residues.
EPA made conservative (protective)
assumptions in the ground and surface
water modeling used to assess exposure
to isofetamid in drinking water. EPA
used similarly conservative assumptions
to assess postapplication exposure of
children as well as incidental oral
exposure of toddlers. These assessments
will not underestimate the exposure and
risks posed by isofetamid.
D. Aggregate Risks and Determination of
Safety
EPA determines whether acute and
chronic dietary pesticide exposures are
safe by comparing aggregate exposure
estimates to the acute PAD (aPAD) and
chronic PAD (cPAD). For linear cancer
risks, EPA calculates the lifetime
probability of acquiring cancer given the
estimated aggregate exposure. Short-,
intermediate-, and chronic-term risks
are evaluated by comparing the
estimated aggregate food, water, and
residential exposure to the appropriate
PODs to ensure that an adequate MOE
exists.
1. Acute risk. An acute aggregate risk
assessment takes into account acute
exposure estimates from dietary
consumption of food and drinking
water. No adverse effect resulting from
a single oral exposure was identified
and no acute dietary endpoint was
selected. Therefore, isofetamid is not
expected to pose an acute dietary risk.
2. Chronic risk. Using the exposure
assumptions described in this unit for
chronic exposure, EPA has concluded
that chronic exposure to isofetamid
from food and water will utilize <1% of
the cPAD for children 1–2 years old, the
population group receiving the greatest
exposure. Based on the explanation in
the unit regarding residential use
patterns, chronic residential exposure to
residues of isofetamid is not expected.
3. Short-term risk. Short-term
aggregate exposure takes into account
short-term residential exposure plus
chronic exposure to food and water
(considered to be a background
exposure level). Isofetamid is currently
registered for uses that could result in
VerDate Sep<11>2014
13:00 Oct 13, 2016
Jkt 241001
short-term residential exposure, and the
Agency has determined that it is
appropriate to aggregate chronic
exposure through food and water with
short-term residential exposures to
isofetamid.
Using the exposure assumptions
described in this unit for short-term
exposures, EPA has concluded the
combined short-term food, water, and
residential isofetamid exposures result
in aggregate MOEs of 24,000 and 3,900
for adults and children (1–2 years old),
respectively. Because EPA’s level of
concern for isofetamid is a MOE of 100
or below, these MOEs are not of
concern.
4. Intermediate-term risk.
Intermediate-term aggregate exposure
takes into account intermediate-term
non-dietary, non-occupational exposure
plus chronic exposure to food and water
(considered to be a background
exposure level). An intermediate-term
adverse effect was identified; however,
isofetamid is not registered for any use
patterns that would result in
intermediate-term residential exposure.
Intermediate-term risk is assessed based
on intermediate-term residential
exposure plus chronic dietary exposure.
Because there is no intermediate-term
residential exposure and chronic dietary
exposure has already been assessed
under the appropriately protective
cPAD (which is at least as protective as
the POD used to assess intermediateterm risk), no further assessment of
intermediate-term risk is necessary, and
EPA relies on the chronic dietary risk
assessment for evaluating intermediateterm risk for isofetamid.
5. Aggregate cancer risk for U.S.
population. Based on the lack of
evidence of carcinogenicity in two
adequate rodent carcinogenicity studies,
isofetamid is not expected to pose a
cancer risk to humans.
6. Determination of safety. Based on
these risk assessments, EPA concludes
that there is a reasonable certainty that
no harm will result to the general
population, or to infants and children,
from aggregate exposure to isofetamid
residues.
V. Other Considerations
A. Analytical Enforcement Methodology
An adequate enforcement
methodology (liquid chromatography
with tandem mass spectrometry (LC–
MS/MS)) is available to enforce the
tolerance expression.
The method may be requested from:
Chief, Analytical Chemistry Branch,
Environmental Science Center, 701
Mapes Rd., Ft. Meade, MD 20755–5350;
telephone number: (410) 305–2905;
PO 00000
Frm 00051
Fmt 4700
Sfmt 4700
70973
email address: residuemethods@
epa.gov.
B. International Residue Limits
In making its tolerance decisions, EPA
seeks to harmonize U.S. tolerances with
international standards whenever
possible, consistent with U.S. food
safety standards and agricultural
practices. EPA considers the
international maximum residue limits
(MRLs) established by the Codex
Alimentarius Commission (Codex), as
required by FFDCA section 408(b)(4).
The Codex Alimentarius is a joint
United Nations Food and Agriculture
Organization/World Health
Organization food standards program,
and it is recognized as an international
food safety standards-setting
organization in trade agreements to
which the United States is a party. EPA
may establish a tolerance that is
different from a Codex MRL; however,
FFDCA section 408(b)(4) requires that
EPA explain the reasons for departing
from the Codex level.
The Codex has not established any
MRLs for isofetamid.
VI. Conclusion
Therefore, time-limited tolerances are
established for residues of isofetamid,
isofetamid, in or on caneberry subgroup
13–07A and bushberry subgroup 13–
07B at 4.0 and 5.0 ppm. These
tolerances expire on December 31, 2019.
VII. Statutory and Executive Order
Reviews
This action establishes tolerances
under FFDCA sections 408(e) and
408(l)(6). 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 action
has been exempted from review under
Executive Order 12866, this action is
not subject to Executive Order 13211,
entitled ‘‘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 action 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
E:\FR\FM\14OCR1.SGM
14OCR1
70974
Federal Register / Vol. 81, No. 199 / Friday, October 14, 2016 / Rules and Regulations
Populations’’ (59 FR 7629, February 16,
1994).
Since tolerances and exemptions that
are established in accordance with
FFDCA sections 408(e) and 408(l)(6),
such as the tolerances 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 action 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 FFDCA
section 408(n)(4). 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 9, 2000) do not apply
to this action. In addition, this action
does not impose any enforceable duty or
contain any unfunded mandate as
described under Title II of the Unfunded
Mandates Reform Act (UMRA) (2 U.S.C.
1501 et seq.).
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
(NTTAA) (15 U.S.C. 272 note).
VIII. Congressional Review Act
ehiers on DSK5VPTVN1PROD with RULES
Pursuant to the Congressional Review
Act (5 U.S.C. 801 et seq.), 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 the rule in the Federal
Register. This action 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.
VerDate Sep<11>2014
13:00 Oct 13, 2016
Jkt 241001
Dated: September 30, 2016.
Michael Goodis,
Director, Registration Division, Office of
Pesticide Programs.
Therefore, 40 CFR chapter I is
amended as follows:
PART 180—[AMENDED]
1. The authority citation for part 180
continues to read as follows:
■
Authority: 21 U.S.C. 321(q), 346a and 371.
2. In § 180.681, revise paragraph (b) to
read as follows:
■
§ 180.681
residues.
Isofetamid; tolerances for
*
*
*
*
*
(b) Section 18 emergency exemptions.
Time-limited tolerances specified in the
following table are established for
residues of the fungicide, isofetamid (N[1,1-dimethyl-2-[2-methyl-4-(1methylethoxy)phenyl]-2-oxoethyl]-3methyl-2-thiophenecarboxamide) in or
on the specified agricultural
commodities, resulting from use of the
pesticide pursuant to FIFRA section 18
emergency exemptions. The tolerances
expire on the date specified in the table.
Parts per
million
Commodity
Caneberry subgroup 13–07A
Bushberry subgroup 13–07B
Expiration
date
instructions provided in 40 CFR part
178 (see also Unit I.C. of the
SUPPLEMENTARY INFORMATION).
ADDRESSES: The docket for this action,
identified by docket identification (ID)
number HQ–EPA–OPP–2015–0390, is
available at https://www.regulations.gov
or at the Office of Pesticide Programs
Regulatory Public Docket (OPP Docket)
in the Environmental Protection Agency
Docket Center (EPA/DC), West William
Jefferson Clinton Bldg., Rm. 3334, 1301
Constitution Ave. NW., Washington, DC
20460–0001. The Public Reading Room
is open from 8:30 a.m. to 4:30 p.m.,
Monday through Friday, excluding legal
holidays. The telephone number for the
Public Reading Room is (202) 566–1744,
and the telephone number for the OPP
Docket is (703) 305–5805. Please review
the visitor instructions and additional
information about the docket available
at https://www.epa.gov/dockets.
FOR FURTHER INFORMATION CONTACT:
Michael Goodis, Registration Division
(7505P), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave. NW., Washington,
DC 20460–0001; main telephone
number: (703) 305–7090; email address:
RDFRNotices@epa.gov.
SUPPLEMENTARY INFORMATION:
I. General Information
4.0
12/31/2019
A. Does this action apply to me?
You may be potentially affected by
5.0
12/31/2019
this action if you are an agricultural
*
*
*
*
*
producer, food manufacturer, or
[FR Doc. 2016–24932 Filed 10–13–16; 8:45 am]
pesticide manufacturer. The following
BILLING CODE 6560–50–P
list of North American Industrial
Classification System (NAICS) codes is
not intended to be exhaustive, but rather
ENVIRONMENTAL PROTECTION
provides a guide to help readers
AGENCY
determine whether this document
applies to them. Potentially affected
40 CFR Part 180
entities may include:
• Crop production (NAICS code 111).
[EPA–HQ–OPP–2015–0390; FRL–9951–92]
• Animal production (NAICS code
Pyridaben; Pesticide Tolerances
112).
• Food manufacturing (NAICS code
AGENCY: Environmental Protection
311).
Agency (EPA).
• Pesticide manufacturing (NAICS
ACTION: Final rule.
code 32532).
This regulation establishes
tolerances for residues of the insecticide
pyridaben in or on multiple
commodities which are identified and
discussed later in this document.
Interregional Research Project Number 4
(IR–4) requested these tolerances under
the Federal Food, Drug, and Cosmetic
Act (FFDCA).
DATES: This regulation is effective
October 14, 2016. Objections and
requests for hearings must be received
on or before December 13, 2016, and
must be filed in accordance with the
SUMMARY:
PO 00000
Frm 00052
Fmt 4700
Sfmt 4700
B. How can I get electronic access to
other related information?
You may access a frequently updated
electronic version of EPA’s tolerance
regulations at 40 CFR part 180 through
the Government Printing Office’s e-CFR
site at https://www.ecfr.gov/cgi-bin/textidx?&c=ecfr&tpl=/ecfrbrowse/Title40/
40tab_02.tpl.
C. How can I file an objection or hearing
request?
Under FFDCA section 408(g), 21
U.S.C. 346a, any person may file an
E:\FR\FM\14OCR1.SGM
14OCR1
Agencies
[Federal Register Volume 81, Number 199 (Friday, October 14, 2016)]
[Rules and Regulations]
[Pages 70970-70974]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-24932]
[[Page 70970]]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2016-0429; FRL-9952-59]
Isofetamid; Pesticide Tolerances for Emergency Exemptions
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes time-limited tolerances for
residues of the fungicide isofetamid, N-[1,1-dimethyl-2-[2-methyl-4-(1-
methylethoxy)phenyl]-2-oxoethyl]-3-methyl-2-thiophenecarboxamide, in or
on caneberry subgroup 13-07A and bushberry subgroup 13-07B. This action
is in response to EPA's granting of an emergency exemption, under the
Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) authorizing
use of the pesticide on caneberry subgroup 13-07A and bushberry
subgroup 13-07B. This regulation establishes maximum permissible levels
for residues of isofetamid in or on these commodities. The time-limited
tolerances expire on December 31, 2019.
DATES: This regulation is effective October 14, 2016. Objections and
requests for hearings must be received on or before December 13, 2016,
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: The docket for this action, identified by docket
identification (ID) number EPA-HQ-OPP-2016-0429, is available at https://www.regulations.gov or at the Office of Pesticide Programs Regulatory
Public Docket (OPP Docket) in the Environmental Protection Agency
Docket Center (EPA/DC), West William Jefferson Clinton Bldg., Rm. 3334,
1301 Constitution Ave. NW., Washington, DC 20460-0001. The Public
Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through
Friday, excluding legal holidays. The telephone number for the Public
Reading Room is (202) 566-1744, and the telephone number for the OPP
Docket is (703) 305-5805. Please review the visitor instructions and
additional information about the docket available at https://www.epa.gov/dockets.
FOR FURTHER INFORMATION CONTACT: Michael L. Goodis, Registration
Division (7505P), Office of Pesticide Programs, Environmental
Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460-
0001; main telephone number: (703) 305-7090; email address:
RDFRNotices@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.
The following list of North American Industrial Classification System
(NAICS) codes is not intended to be exhaustive, but rather provides a
guide to help readers determine whether this document applies to them.
Potentially affected entities may include:
[emsp14]Crop production (NAICS code 111).
[emsp14]Animal production (NAICS code 112).
[emsp14]Food manufacturing (NAICS code 311).
[emsp14]Pesticide manufacturing (NAICS code 32532).
B. How can I get electronic access to other related information?
You may access a frequently updated electronic version of 40 CFR
part 180 through the Government Printing Office's e-CFR site at https://www.ecfr.gov/cgi-bin/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl.
C. How can I file an objection or hearing request?
Under section 408(g) of the Federal Food, Drug, and Cosmetic Act
(FFDCA), 21 U.S.C. 346a, 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-
2016-0429 in the subject line on the first page of your submission. All
objections and requests for a hearing must be in writing, and must be
received by the Hearing Clerk on or before December 13, 2016. Addresses
for mail and hand delivery of objections and hearing requests are
provided in 40 CFR 178.25(b).
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 (excluding any Confidential Business Information (CBI)) for
inclusion in the public docket. Information not marked confidential
pursuant to 40 CFR part 2 may be disclosed publicly by EPA without
prior notice. Submit the non-CBI copy of your objection or hearing
request, identified by docket ID number EPA-HQ-OPP-2016-0429, by one of
the following methods:
Federal eRulemaking Portal: https://www.regulations.gov.
Follow the online instructions for submitting comments. Do not submit
electronically any information you consider to be CBI or other
information whose disclosure is restricted by statute.
Mail: OPP Docket, Environmental Protection Agency Docket
Center (EPA/DC), (28221T), 1200 Pennsylvania Ave. NW., Washington, DC
20460-0001.
Hand Delivery: To make special arrangements for hand
delivery or delivery of boxed information, please follow the
instructions at https://www.epa.gov/dockets/contacts.html.
Additional instructions on commenting or visiting the docket, along
with more information about dockets generally, is available at https://www.epa.gov/dockets.
II. Background and Statutory Findings
EPA, on its own initiative, in accordance with FFDCA sections
408(e) and 408(l)(6) of, 21 U.S.C. 346a(e) and 346a(1)(6), is
establishing time-limited tolerances for the fungicide, isofetamid, N-
[1,1-dimethyl-2-[2-methyl-4-(1-methylethoxy)phenyl]-2-oxoethyl]-3-
methyl-2-thiophenecarboxamide, in or on caneberry subgroup 13-07A at
4.0 parts per million (ppm) and bushberry subgroup 13-07B at 5.0 ppm.
These time-limited tolerances expire on December 31, 2019.
Section 408(l)(6) of FFDCA requires EPA to establish a time-limited
tolerance or exemption from the requirement for a tolerance for
pesticide chemical residues in food that will result from the use of a
pesticide under an emergency exemption granted by EPA under FIFRA
section 18. Such tolerances can be established without providing notice
or period for public comment. EPA does not intend for its actions on
FIFRA section 18 related time-limited tolerances to set binding
precedents for the application of FFDCA section 408 and the safety
standard to other tolerances and exemptions. Section 408(e) of FFDCA
allows EPA to establish a tolerance or an exemption from the
requirement of a tolerance on its own initiative, i.e., without having
received any petition from an outside party.
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
[[Page 70971]]
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 . . . .''
Section 18 of FIFRA authorizes EPA to exempt any Federal or State
agency from any provision of FIFRA, if EPA determines that ``emergency
conditions exist which require such exemption.'' EPA has established
regulations governing such emergency exemptions in 40 CFR part 166.
III. Emergency Exemption for Isofetamid on Caneberry Subgroup 13-07A
and Bushberry Subgroup 13-07B and FFDCA Tolerances
The Washington State Department of Agriculture (WSDA) requested an
emergency exemption for the use of isofetamid on blackberries,
blueberries, and raspberries to control gray mold caused by Botrytis
cinerea. Botrytis cinerea has a very wide host range which causes gray
mold that becomes visible on developed fruit just prior to harvest.
According to WSDA, Botrytis cinerea developed fungicide resistance and
coupled with the unseasonably warm weather in Washington State, created
conditions favorable for gray mold outbreaks resulting in crop damage
and yield loss. After having reviewed the submission, EPA determined
that an emergency condition exists for Washington, and that the
criteria for approval of an emergency exemption are met. EPA has
authorized a specific exemption under FIFRA section 18 for the use of
isofetamid on blueberry, blackberry, and raspberry for control of gray
mold (Botrytis cinerea) in Washington.
As part of its evaluation of the emergency exemption application,
EPA assessed the potential risks presented by residues of isofetamid in
or on caneberry subgroup 13-07A and bushberry subgroup 13-07B. In doing
so, EPA considered the safety standard in FFDCA section 408(b)(2), and
EPA decided that the necessary tolerance under FFDCA section 408(l)(6)
would be consistent with the safety standard and with FIFRA section 18.
Consistent with the need to move quickly on the emergency exemption in
order to address an urgent non-routine situation and to ensure that the
resulting food is safe and lawful, EPA is issuing this tolerance
without notice and opportunity for public comment as provided in FFDCA
section 408(l)(6). Although these time-limited tolerances expire on
December 31, 2019, under FFDCA section 408(l)(5), residues of the
pesticide not in excess of the amounts specified in the tolerance
remaining in or on caneberry subgroup 13-07A and bushberry subgroup 13-
07B after that date will not be unlawful, provided the pesticide was
applied in a manner that was lawful under FIFRA, and the residues do
not exceed a level that was authorized by these time-limited tolerances
at the time of that application. EPA will take action to revoke these
time-limited tolerances earlier if any experience with, scientific data
on, or other relevant information on this pesticide indicate that the
residues are not safe.
Because these time-limited tolerances are being approved under
emergency conditions, EPA has not made any decisions about whether
isofetamid meets FIFRA's registration requirements for use on caneberry
subgroup 13-07A and bushberry subgroup 13-07B or whether permanent
tolerances for this use would be appropriate. Under these
circumstances, EPA does not believe that this time-limited tolerance
decision serves as a basis for registration of isofetamid by a State
for special local needs under FIFRA section 24(c). Nor does this
tolerance by itself serve as the authority for persons in any State
other than Washington to use this pesticide on the applicable crops
under FIFRA section 18 absent the issuance of an emergency exemption
applicable within that State. For additional information regarding the
emergency exemption for isofetamid, contact the Agency's Registration
Division at the address provided under FOR FURTHER INFORMATION CONTACT.
IV. Aggregate Risk Assessment and Determination of Safety
Section 408(b)(2)(A)(i) of FFDCA allows EPA to establish a
tolerance (the legal limit for a pesticide chemical residue in or on a
food) only if EPA determines that the tolerance is ``safe.'' Section
408(b)(2)(A)(ii) of FFDCA defines ``safe'' to mean that ``there is a
reasonable certainty that no harm will result from aggregate exposure
to the pesticide chemical residue, including all anticipated dietary
exposures and all other exposures for which there is reliable
information.'' This includes exposure through drinking water and in
residential settings, but does not include occupational exposure.
Section 408(b)(2)(C) of FFDCA requires EPA to give special
consideration to exposure of infants and children to the pesticide
chemical residue in establishing a tolerance and to ``ensure that there
is a reasonable certainty that no harm will result to infants and
children from aggregate exposure to the pesticide chemical residue . .
. .''
Consistent with the factors specified in FFDCA section
408(b)(2)(D), EPA has reviewed the available scientific data and other
relevant information in support of this action. EPA has sufficient data
to assess the hazards of and to make a determination on aggregate
exposure expected as a result of this emergency exemption request and
the time-limited tolerances for isofetamid, N-[1,1-dimethyl-2-[2-
methyl-4-(1-methylethoxy)phenyl]-2-oxoethyl]-3-methyl-2-
thiophenecarboxamide, on caneberry subgroup 13-07A at 4.0 ppm and
bushberry subgroup 13-07B at 5.0 ppm. EPA's assessment of exposures and
risks associated with establishing time-limited tolerances follows.
A. Toxicological Points of Departure/Levels of Concern
Once a pesticide's toxicological profile is determined, EPA
identifies toxicological points of departure (POD) and levels of
concern to use in evaluating the risk posed by human exposure to the
pesticide. For hazards that have a threshold below which there is no
appreciable risk, the toxicological POD is used as the basis for
derivation of reference values for risk assessment. PODs are developed
based on a careful analysis of the doses in each toxicological study to
determine the dose at which no adverse effects are observed (the NOAEL)
and the lowest dose at which adverse effects of concern are identified
(the LOAEL). Uncertainty/safety factors are used in conjunction with
the POD to calculate a safe exposure level--generally referred to as a
population-adjusted dose (PAD) or a reference dose (RfD)--and a safe
margin of exposure (MOE). For non-threshold risks, the Agency assumes
that any amount of exposure will lead to some degree of risk. Thus, the
Agency estimates risk in terms of the probability of an occurrence of
the adverse effect expected in a lifetime. For more information on the
general principles EPA uses in risk characterization and a complete
description of the risk assessment process, see https://www2.epa.gov/
pesticide-science-and-
[[Page 70972]]
assessing-pesticide-risks/assessing-human-health-risk-pesticides.
A summary of the toxicological endpoints for isofetamid used for
human risk assessment is discussed in Unit III.B of the final rule
published in the Federal Register of July 30, 2015 (80 FR 45438) (FRL-
9923-86).
B. Exposure Assessment
1. Dietary exposure from food and feed uses. In evaluating dietary
exposure to isofetamid, EPA considered exposure under the time-limited
tolerances established by this action as well as all existing
isofetamid tolerances in 40 CFR 180.681. EPA assessed dietary exposures
from isofetamid in food as follows:
i. Acute exposure. No acute effects were identified in the
toxicological studies for isofetamid; therefore, a quantitative acute
dietary exposure assessment is unnecessary.
ii. Chronic exposure. In conducting the chronic dietary exposure
assessment EPA used the DEEM-FCID, Version 3.16 software with 2003-2008
food consumption data from the USDA's National Health and Nutrition
Examination Survey, What We Eat in America (NHANES/WWEIA). As to
residue levels in food, EPA evaluated the combined residues of parent
isofetamid and its metabolite GPTC (N-[l,l-dimethyl-2-(4-[beta]-D-
glucopyranosyloxy-2-methylphenyl)-2-oxoethyl]-3-methyl-2-
thiophenecarboxamide). EPA's chronic dietary exposure assessment is
based on mean residue levels found in field trials for each of the
crops on which isofetamid is used, using empirical and default
processing factors as available, and assuming 100 percent crop treated
(PCT).
iii. Cancer. Based on the data summarized in Unit IV.A., EPA has
concluded that isofetamid does not pose a cancer risk to humans.
Therefore, a dietary exposure assessment for the purpose of assessing
cancer risk is unnecessary.
iv. Anticipated residue and percent crop treated (PCT) information.
EPA did not use crop-specific PCT information in the dietary assessment
for isofetamid. EPA assumed that for each food commodity on which
isofetamid is used, 100% of the commodity has combined residues of
parent isofetamid and GPTC equal to the mean field trial residues.
2. Dietary exposure from drinking water. The Agency used screening
level water exposure models in the dietary exposure analysis and risk
assessment for isofetamid in drinking water. These simulation models
take into account data on the physical, chemical, and fate/transport
characteristics of isofetamid. Further information regarding EPA
drinking water models used in pesticide exposure assessment can be
found at https://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/about-water-exposure-models-used-pesticide.
Based on the Pesticide Flooded Application Model (PFAM) and the
Pesticide Root Zone Model Ground Water (PRZM GW), the estimated
drinking water concentrations (EDWCs) of isofetamid for chronic
exposures for non-cancer assessments are estimated to be 110 ppb for
surface water and 43 ppb for ground water.
Modeled estimates of drinking water concentrations were directly
entered into the dietary exposure model. For chronic dietary risk
assessment, the water concentration of value 110 parts per billion
(ppb) was used to assess 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).
Isofetamid is currently registered for the following uses that
could result in residential exposures: Turfgrass including golf
courses, residential lawns, and recreational turfgrass. Since there may
be residential use sites, residential handler exposure and risk
estimates were calculated for all possible residential exposure
scenarios. Given that there is no dermal toxicity concern in regard to
isofetamid, the residential handler assessment only includes the
inhalation route of exposure. Residential handler exposure is expected
to be short-term in duration as a maximum of eight applications are
allowed per year. Thus, intermediate-term exposures are not likely
because of the intermittent nature of applications by homeowners. Unit
exposure values and estimates for area treated or amount handled were
taken from the Agency's 2012 Standard Operating Procedures for
Residential Pesticide Exposure Assessment (Section 3: Lawns/Turf). The
algorithms used to estimate exposure and dose for residential handlers
can be found in the 2012 Residential SOPs (Section 3: Lawns/Turf). For
all residential exposure scenarios, isofetamid risk estimates are not
of concern. Short-term inhalation MOEs range from 850,000 to
18,000,000.
Further information regarding EPA standard assumptions and generic
inputs for residential exposures may be found at: https://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/standard-operating-procedures-residential-pesticide.
4. Cumulative effects from substances with a common mechanism of
toxicity. Section 408(b)(2)(D)(v) of FFDCA requires that, when
considering whether to establish, modify, or revoke a tolerance, the
Agency consider ``available information'' concerning the cumulative
effects of a particular pesticide's residues and'' other substances
that have a common mechanism of toxicity.''
EPA has not found isofetamid to share a common mechanism of
toxicity with any other substances, and isofetamid does not appear to
produce a toxic metabolite produced by other substances. For the
purposes of this tolerance action, therefore, EPA has assumed that
isofetamid does not have 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 Web site at https://www2.epa.gov/pesticide-science-and-assessing-pesticide-risks/cumulative-assessment-risk-pesticides.
C. Safety Factor for Infants and Children
1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA
shall apply an additional tenfold (10X) 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 Food Quality
Protection Act Safety Factor (FQPA SF). In applying this provision, EPA
either retains the default value of 10X, or uses a different additional
Safety Factor (SF) when reliable data available to EPA support the
choice of a different factor.
2. Prenatal and postnatal sensitivity. There is no evidence of
developmental toxicity or reproductive susceptibility associated with
isofetamid, and there are no residual uncertainties concerning pre- or
post-natal toxicity or exposure.
3. Conclusion. EPA has determined that reliable data show that the
safety of infants and children would be adequately protected if the
FQPA SF were reduced to 1X for isofetamid. That decision is based on
the following findings:
i. The toxicity database for isofetamid is complete.
ii. There is no indication that isofetamid is a neurotoxic chemical
and
[[Page 70973]]
there is no need for a developmental neurotoxicity study or additional
Uncertainty Factors (UF) to account for neurotoxicity.
iii. There is no evidence that isofetamid results in increased
susceptibility in in utero rats or rabbits in the prenatal
developmental studies or in young rats in the 2-generation reproduction
study.
iv. There are no residual uncertainties identified in the exposure
databases. The dietary food exposure assessments were performed based
on 100 PCT and average (mean) level field trial residues. EPA made
conservative (protective) assumptions in the ground and surface water
modeling used to assess exposure to isofetamid in drinking water. EPA
used similarly conservative assumptions to assess postapplication
exposure of children as well as incidental oral exposure of toddlers.
These assessments will not underestimate the exposure and risks posed
by isofetamid.
D. Aggregate Risks and Determination of Safety
EPA determines whether acute and chronic dietary pesticide
exposures are safe by comparing aggregate exposure estimates to the
acute PAD (aPAD) and chronic PAD (cPAD). For linear cancer risks, EPA
calculates the lifetime probability of acquiring cancer given the
estimated aggregate exposure. Short-, intermediate-, and chronic-term
risks are evaluated by comparing the estimated aggregate food, water,
and residential exposure to the appropriate PODs to ensure that an
adequate MOE exists.
1. Acute risk. An acute aggregate risk assessment takes into
account acute exposure estimates from dietary consumption of food and
drinking water. No adverse effect resulting from a single oral exposure
was identified and no acute dietary endpoint was selected. Therefore,
isofetamid is not expected to pose an acute dietary risk.
2. Chronic risk. Using the exposure assumptions described in this
unit for chronic exposure, EPA has concluded that chronic exposure to
isofetamid from food and water will utilize <1% of the cPAD for
children 1-2 years old, the population group receiving the greatest
exposure. Based on the explanation in the unit regarding residential
use patterns, chronic residential exposure to residues of isofetamid is
not expected.
3. Short-term risk. Short-term aggregate exposure takes into
account short-term residential exposure plus chronic exposure to food
and water (considered to be a background exposure level). Isofetamid is
currently registered for uses that could result in short-term
residential exposure, and the Agency has determined that it is
appropriate to aggregate chronic exposure through food and water with
short-term residential exposures to isofetamid.
Using the exposure assumptions described in this unit for short-
term exposures, EPA has concluded the combined short-term food, water,
and residential isofetamid exposures result in aggregate MOEs of 24,000
and 3,900 for adults and children (1-2 years old), respectively.
Because EPA's level of concern for isofetamid is a MOE of 100 or below,
these MOEs are not of concern.
4. Intermediate-term risk. Intermediate-term aggregate exposure
takes into account intermediate-term non-dietary, non-occupational
exposure plus chronic exposure to food and water (considered to be a
background exposure level). An intermediate-term adverse effect was
identified; however, isofetamid is not registered for any use patterns
that would result in intermediate-term residential exposure.
Intermediate-term risk is assessed based on intermediate-term
residential exposure plus chronic dietary exposure. Because there is no
intermediate-term residential exposure and chronic dietary exposure has
already been assessed under the appropriately protective cPAD (which is
at least as protective as the POD used to assess intermediate-term
risk), no further assessment of intermediate-term risk is necessary,
and EPA relies on the chronic dietary risk assessment for evaluating
intermediate-term risk for isofetamid.
5. Aggregate cancer risk for U.S. population. Based on the lack of
evidence of carcinogenicity in two adequate rodent carcinogenicity
studies, isofetamid is not expected to pose a cancer risk to humans.
6. Determination of safety. Based on these risk assessments, EPA
concludes that there is a reasonable certainty that no harm will result
to the general population, or to infants and children, from aggregate
exposure to isofetamid residues.
V. Other Considerations
A. Analytical Enforcement Methodology
An adequate enforcement methodology (liquid chromatography with
tandem mass spectrometry (LC-MS/MS)) is available to enforce the
tolerance expression.
The method may be requested from: Chief, Analytical Chemistry
Branch, Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD
20755-5350; telephone number: (410) 305-2905; email address:
residuemethods@epa.gov.
B. International Residue Limits
In making its tolerance decisions, EPA seeks to harmonize U.S.
tolerances with international standards whenever possible, consistent
with U.S. food safety standards and agricultural practices. EPA
considers the international maximum residue limits (MRLs) established
by the Codex Alimentarius Commission (Codex), as required by FFDCA
section 408(b)(4). The Codex Alimentarius is a joint United Nations
Food and Agriculture Organization/World Health Organization food
standards program, and it is recognized as an international food safety
standards-setting organization in trade agreements to which the United
States is a party. EPA may establish a tolerance that is different from
a Codex MRL; however, FFDCA section 408(b)(4) requires that EPA explain
the reasons for departing from the Codex level.
The Codex has not established any MRLs for isofetamid.
VI. Conclusion
Therefore, time-limited tolerances are established for residues of
isofetamid, isofetamid, in or on caneberry subgroup 13-07A and
bushberry subgroup 13-07B at 4.0 and 5.0 ppm. These tolerances expire
on December 31, 2019.
VII. Statutory and Executive Order Reviews
This action establishes tolerances under FFDCA sections 408(e) and
408(l)(6). 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 action has been exempted from review under Executive Order
12866, this action is not subject to Executive Order 13211, entitled
``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
action 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
[[Page 70974]]
Populations'' (59 FR 7629, February 16, 1994).
Since tolerances and exemptions that are established in accordance
with FFDCA sections 408(e) and 408(l)(6), such as the tolerances 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 action 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 FFDCA section 408(n)(4). 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 9, 2000) do not apply to this action. In addition, this
action does not impose any enforceable duty or contain any unfunded
mandate as described under Title II of the Unfunded Mandates Reform Act
(UMRA) (2 U.S.C. 1501 et seq.).
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 (NTTAA) (15 U.S.C. 272 note).
VIII. Congressional Review Act
Pursuant to the Congressional Review Act (5 U.S.C. 801 et seq.),
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
the rule in the Federal Register. This action is not a ``major rule''
as defined by 5 U.S.C. 804(2).
List of Subjects in 40 CFR Part 180
Environmental protection, Administrative practice and procedure,
Agricultural commodities, Pesticides and pests, Reporting and
recordkeeping requirements.
Dated: September 30, 2016.
Michael Goodis,
Director, Registration Division, Office of Pesticide Programs.
Therefore, 40 CFR chapter I is amended as follows:
PART 180--[AMENDED]
0
1. The authority citation for part 180 continues to read as follows:
Authority: 21 U.S.C. 321(q), 346a and 371.
0
2. In Sec. 180.681, revise paragraph (b) to read as follows:
Sec. [emsp14]180.681 Isofetamid; tolerances for residues.
* * * * *
(b) Section 18 emergency exemptions. Time-limited tolerances
specified in the following table are established for residues of the
fungicide, isofetamid (N-[1,1-dimethyl-2-[2-methyl-4-(1-
methylethoxy)phenyl]-2-oxoethyl]-3-methyl-2-thiophenecarboxamide) in or
on the specified agricultural commodities, resulting from use of the
pesticide pursuant to FIFRA section 18 emergency exemptions. The
tolerances expire on the date specified in the table.
------------------------------------------------------------------------
Parts per Expiration
Commodity million date
------------------------------------------------------------------------
Caneberry subgroup 13-07A..................... 4.0 12/31/2019
Bushberry subgroup 13-07B..................... 5.0 12/31/2019
------------------------------------------------------------------------
* * * * *
[FR Doc. 2016-24932 Filed 10-13-16; 8:45 am]
BILLING CODE 6560-50-P