Cyflumetofen; Pesticide Tolerances, 20037-20042 [2019-09377]
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Federal Register / Vol. 84, No. 89 / Wednesday, May 8, 2019 / Rules and Regulations
83) then north returning to the point of
origin.
(b) Effective and enforcement period.
This section is effective and will be
enforced from 9 p.m. through 11 p.m. on
May 26, 2019.
(c) Regulations. (1) In accordance with
the general regulations in § 165.23, entry
into, transiting, or anchoring within this
safety zone is prohibited unless
authorized by the Captain of the Port
Lake Michigan or a designated on-scene
representative.
(2) This safety zone is closed to all
vessel traffic, except as may be
permitted by the Captain of the Port
Lake Michigan or a designated on-scene
representative.
(3) The ‘‘on-scene representative’’ of
the Captain of the Port Lake Michigan
is any Coast Guard commissioned,
warrant or petty officer who has been
designated by the Captain of the Port
Lake Michigan to act on his or her
behalf.
(4) Vessel operators desiring to enter
or operate within the safety zone must
contact the Captain of the Port Lake
Michigan or an on-scene representative
to obtain permission to do so. The
Captain of the Port Lake Michigan or an
on-scene representative may be
contacted via VHF Channel 16. Vessel
operators given permission to enter or
operate in the safety zone must comply
with all directions given to them by the
Captain of the Port Lake Michigan or an
on-scene representative.
Dated: May 2, 2019.
Thomas J. Stuhlreyer,
Captain, U.S. Coast Guard, Captain of the
Port, Lake Michigan.
BILLING CODE 9110–04–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2017–0532; FRL–9990–60]
Cyflumetofen; Pesticide Tolerances
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This regulation establishes
tolerances for residues of the insecticide
cyflumetofen in or on tea, dried. OAT
Agrio. Ltd., Tokyo, Japan c/o Landis
International, Inc. requested these
tolerances under the Federal Food,
Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective May
8, 2019. Objections and requests for
hearings must be received on or before
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The docket for this action,
identified by docket identification (ID)
number EPA–HQ–OPP–2017–0532, 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, P.E., Director,
Registration Division (750P), 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.
ADDRESSES:
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does this action apply to me?
[FR Doc. 2019–09417 Filed 5–7–19; 8:45 am]
SUMMARY:
July 8, 2019 and must be filed in
accordance with the instructions
provided in 40 CFR part 178 (see also
Unit I.C. of the SUPPLEMENTARY
INFORMATION).
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 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.
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20037
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
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–2017–0532 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 July
8, 2019. 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–
2017–0532, 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. Summary of Petitioned-For
Tolerance
In the Federal Register of December
15, 2017 (82 FR 59604) (FRL–9970–50),
EPA issued a document pursuant to
FFDCA section 408(d)(3), 21 U.S.C.
346a(d)(3), announcing the filing of a
pesticide petition (PP 7E8609) by OAT
Agrio. Ltd., Tokyo, Japan, c/o Landis
International, Inc., 3185 Madison
Highway, P.O. Box 5126, Valdosta,
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Georgia 31603–5126. The petition
requested that 40 CFR 180.677 be
amended by establishing tolerances for
residues of the insecticide cyflumetofen,
(2-methoxyethyl a-cyano-a-[4-(1,1dimethylethyl)phenyl]-b-oxo-2(trifluoromethyl)benzenepropanoate), in
or on tea at 40 parts per million (ppm).
That document referenced a summary of
the petition prepared by OAT Agrio.
Ltd. c/o Landis International, Inc., the
registrant, which is available in the
docket, https://www.regulations.gov.
These tolerances were requested to
cover residues of cyflumetofen in or on
tea resulting from use of this pesticide
on tea outside the United States. There
is no current U.S. registration for use of
cyflumetofen on tea. Four comments
were submitted to the docket
concerning issues outside the scope of
this rulemaking.
Based upon review of the data
supporting the referenced petition, EPA
is establishing a tolerance for residues of
cyflumetofen on tea, dried.
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III. 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 FFDCA section
408(b)(2)(D), and the factors specified in
FFDCA section 408(b)(2)(D), EPA has
reviewed the available scientific data
and other relevant information in
support of this action. EPA has
sufficient data to assess the hazards of
and to make a determination on
aggregate exposure for cyflumetofen
including exposure resulting from the
tolerances established by this action.
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EPA’s assessment of exposures and risks
associated with cyflumetofen follows.
A. Toxicological Profile
EPA has evaluated the available
toxicity data and considered its validity,
completeness, and reliability as well as
the relationship of the results of the
studies to human risk. EPA has also
considered available information
concerning the variability of the
sensitivities of major identifiable
subgroups of consumers, including
infants and children.
Cyflumetofen has a low acute toxicity
via the acute oral, dermal, and
inhalation routes of exposure. It is
minimally irritating to the eyes but not
to the skin. Cyflumetofen is a skin
sensitizer. The major target organ in
rats, mice, and dogs following shortand long-term oral administration of
cyflumetofen is the adrenal glands
characterized by increased organ weight
and histopathology (vacuolation and
hypertrophy of the adrenal cortical
cells).
There is no evidence of increased
qualitative or quantitative susceptibility
in the rat 2-generation reproduction
study; however, the rat and rabbit
developmental studies indicate
susceptibility in the pups. There is
evidence of increased quantitative
susceptibility in the rabbit
developmental toxicity study, since
developmental effects at the limit dose
were observed where no maternal
toxicity was present. There is evidence
of increased qualitative susceptibility in
the rat developmental toxicity study as
developmental effects were seen at the
same dose that caused an increase in
adrenal weights and organ-to-body
weight ratio in the maternal animals.
There is no evidence of neurotoxicity
in any of the submitted studies for
cyflumetofen.
Cyflumetofen has been classified as
having ‘‘Suggestive Evidence of
Carcinogenic Potential’’ in accordance
with the EPA’s Final Guidelines for
Carcinogen Risk Assessment (March
2005). This classification is based on the
presence of a single tumor type (thyroid
c-cell) in one sex (male) and one species
(rat), and the lack of concern for
mutagenicity. When there is suggestive
evidence of carcinogenicity, the Agency
does not attempt a dose-response
assessment as the nature of the data
generally would not support one.
Therefore, the Agency has determined
that quantification of risk using a nonlinear approach (i.e., the chronic
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reference dose) will adequately protect
for all chronic toxicity, including
carcinogenicity, likely to result from
exposure to cyflumetofen.
More detailed information on the
studies received and the nature of the
adverse effects caused by cyflumetofen
as well as the NOAEL and the LOAEL
from the toxicological studies can be
found in the document entitled,
‘‘Cyflumetofen. Human Health Risk
Assessment to Support New Uses on
Imported Tea,’’ dated March 4, 2019, by
going to https://www.regulations.gov.
The referenced document is available in
the docket established by this action,
which is described under ADDRESSES.
Locate and click on the hyperlink for
docket ID number EPA–HQ–OPP–2017–
0532. Double-click on the document to
view the referenced information.
B. 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://
www.epa.gov/pesticides/factsheets/
riskassess.htm.
A summary of the toxicological
endpoints for cyflumetofen used for
human risk assessment is shown in the
Table of this unit.
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20039
TABLE —SUMMARY OF TOXICOLOGICAL DOSES AND ENDPOINTS FOR CYFLUMETOFEN FOR USE IN HUMAN HEALTH RISK
ASSESSMENT
Exposure/scenario
Point of departure and
uncertainty/safety
factors
RfD, PAD, LOC for risk
assessment
Study and toxicological effects
Acute Dietary (All Populations) ..........
An acute RfD has not been established for either the general U.S. population or for females 13–49 years of age since there
were no appropriate studies that demonstrated evidence of toxicity attributable to a single dose for these populations.
Chronic dietary (All Populations) .......
NOAEL = 16.5 mg/kg/
day.
UFA = 10x
UFH = 10x
FQPA SF = 1x
Chronic RfD = 0.17 mg/
kg/day.
cPAD = 0.17 mg/kg/day
Three co-critical studies:
90-Day Feeding Study in Rats. LOAEL = 1,000 ppm (54.5/62.8 mg/kg/
day in males/females) based on hematology and organ weight
changes in the liver, adrenal, kidney and ovaries; and histopathology
effects in the adrenals and the ovaries. NOAEL = 300 ppm (16.5/19
mg/kg/day in males/females).
Chronic Toxicity/Carcinogenicity Study in Rats. LOAEL = 1,500 ppm
(49.5/61.9 mg/kg/day in males/females) based on increased adrenal
weights and histopathology. NOAEL = 500 ppm (16.5/20.3 mg/kg/day
in males/females).
Two-Generation Reproduction Study in Rats. Parental: LOAEL = 500
ppm (30.6/46.6 mg/kg/day in males/females) based on increased
organ weight and histopathology in adrenals. NOAEL = 150 ppm (9.2/
13.8 mg/kg/day in males/females).
Adult and Incidental Oral (Short- and
Intermediate-Term).
NOAEL = 16.5 mg/kg/
day.
UFA = 10x
UFH = 10x
FQPA SF = 1x
LOC for MOE = <100 ...
Same as chronic dietary endpoint.
Dermal (ShortTerm).
No dermal hazard was identified. No appropriate endpoint was selected for risk assessment.
and
Intermediate-
Inhalation (Short- and IntermediateTerm).
NOAEL = 16.5 mg/kg/
day.
UFA = 10x
UFH = 10x
FQPA SF = 1x
Cancer (Oral, Dermal, and Inhalation)
Classification: ‘‘Suggestive Evidence of Carcinogenic Potential.’’
Occupational and Residential LOC for MOE
= <100.
Same as chronic dietary endpoint.
Point of Departure (POD) = A data point or an estimated point that is derived from observed dose-response data and used to mark the beginning of extrapolation to
determine risk associated with lower environmentally relevant human exposures. NOAEL = no observed adverse effect level. LOAEL = lowest observed adverse effect level. UF = uncertainty factor. UFA = extrapolation from animal to human (interspecies). UFH = potential variation in sensitivity among members of the human
population (intraspecies). FQPA SF = Food Quality Protection Act Safety Factor. PAD = population adjusted dose (a = acute, c = chronic). RfD = reference dose.
MOE = margin of exposure. LOC = level of concern. N/A = not applicable.
More detailed information on the
toxicological endpoints for cyflumetofen
can be found in the document entitled,
‘‘Cyflumetofen. Human Health Risk
Assessment to Support New Uses on
Imported Tea,’’ dated March 4, 2019, by
going to https://www.regulations.gov.
The referenced document is available in
the docket established by this action,
which is described under ADDRESSES.
Locate and click on the hyperlink for
docket ID number EPA–HQ–OPP–2017–
0532. Double-click on the document to
view the referenced information.
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C. Exposure Assessment
1. Dietary exposure from food and
feed uses. In evaluating dietary
exposure to cyflumetofen, EPA
considered exposure under the
petitioned-for tolerances as well as all
existing cyflumetofen tolerances in 40
CFR 180.677. EPA assessed dietary
exposures from cyflumetofen in food as
follows:
i. Acute exposure. No acute dietary
exposure and risk analysis was
performed since there were no
appropriate studies identified in the
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toxicology database that demonstrated
evidence of toxicity attributable to a
single dose.
ii. Chronic exposure. An unrefined
chronic dietary analysis was conducted
that was based on tolerance-level
residues, 100% crop treated (%CT)
assumptions, and empirical processing
estimates when available or DEEMTM
processing factors. Using assumptions
considered to be highly protective, the
estimated dietary risks ranged from <1%
of the cPAD for the general U.S.
population to 2.4% of the cPAD for the
highest exposed population subgroup of
children 1–2 years old. The Agency’s
LOC is <100% cPAD.
iii. Cancer. As explained in unit III.A.,
quantification of risk using a non-linear
approach (i.e., a cPAD) will adequately
account for all chronic toxicity,
including carcinogenicity, that could
result from exposure to cyflumetofen.
iv. Anticipated residue and percent
crop treated (PCT) information. EPA did
not use anticipated residue information
in the dietary assessment for
cyflumetofen. Tolerance-level residues
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and/or 100% CT were assumed for all
food commodities.
More detailed information on the
acute and chronic dietary (food only)
exposure and risk assessment for
cyflumetofen can be found in the
document entitled, ‘‘Cyflumetofen.
Human Health Risk Assessment to
Support New Uses on Imported Tea,’’
dated March 4, 2019, by going to https://
www.regulations.gov. The referenced
document is available in the docket
established by this action, which is
described under ADDRESSES. Locate and
click on the hyperlink for docket ID
number EPA–HQ–OPP–2017–0532.
Double-click on the document to view
the referenced information.
2. Dietary exposure from drinking
water. The Agency used screening level
water exposure models in the dietary
exposure analysis and risk assessment
for cyflumetofen in drinking water.
These simulation models take into
account data on the physical, chemical,
and fate/transport characteristics of
cyflumetofen. Further information
regarding EPA drinking water models
used in pesticide exposure assessment
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can be found at https://www.epa.gov/
oppefed1/models/water/index.htm.
The estimated drinking water
concentrations (EDWCs) previously
used in the dietary risk assessment were
incorporated directly into this dietary
assessment. The Pesticide Root Zone
Model/Exposure Analysis Modeling
System (PRZM/EXAMS) simulations of
a NY grapes scenario produced the
highest surface-water EDWCs (0.33 ppb
for chronic dietary exposure) and an
updated EDWC was not required for this
assessment since the proposed use on
imported tea will not impact the
previously provided estimates.
Modeled estimates of drinking water
concentrations were directly entered
into the dietary exposure model. For
chronic dietary risk assessment, the
water concentration of value 0.33 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). The
registered uses of cyflumetofen on
ornamentals may result in adult
residential handler and post-application
exposure. This exposure is expected to
be only short-term in duration (i.e., 1 to
30 days) as intermediate- or long-term
exposures are not likely based on the
intermittent nature of applications by
homeowners. Since no dermal hazard
was identified for cyflumetofen in the
toxicological database, only inhalation
exposure assessments were conducted.
The resulting inhalation margins of
exposure (MOEs) for all scenarios are
not of concern since they are above the
level of concern (LOC) of 100 (MOEs
≥100). Based on the registered use
pattern, exposure to children in
residential settings is not anticipated.
Further information regarding EPA
standard assumptions and generic
inputs for residential exposures may be
found at https://www.epa.gov/pesticides/
trac/science/trac6a05.pdf.
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 cyflumetofen to
share a common mechanism of toxicity
with any other substances, and
cyflumetofen does not appear to
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produce a toxic metabolite produced by
other substances. For the purposes of
this tolerance action, therefore, EPA has
assumed that cyflumetofen 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 website at https://
www.epa.gov/pesticides/cumulative.
D. 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 when reliable
data available to EPA support the choice
of a different factor.
2. Prenatal and postnatal sensitivity.
There is no evidence of increased
qualitative or quantitative susceptibility
in the rat 2-generation reproduction
study; however, the rat and rabbit
developmental studies indicate
susceptibility in the pups. There is
evidence of increased quantitative
susceptibility in the rabbit
developmental toxicity study, since
developmental effects (changes in
ossicification, paw flexion, and
decreased fetal body weights) at the
limit dose were observed where no
maternal toxicity was present. There is
evidence of increased qualitative
susceptibility in the rat developmental
toxicity study as developmental effects
(increased incidence of incompletely
ossified sternal centra) were seen at the
same dose that caused an increase in
adrenal weights and organ-to-body
weight ratio in the maternal animals.
Notwithstanding, the degree of concern
for these effects in infants and children
is low because the rat and rabbit
developmental effects have clearly
defined NOAEL/LOAELs and the dose
selected for chronic risk assessment is
protective of these effects. Therefore, the
PODs based on adrenal effects in rat are
health protective of all life stages.
3. Conclusion. EPA has determined
that reliable data show the safety of
infants and children would be
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adequately protected if the FQPA SF
were reduced to 1X. That decision is
based on the following findings:
i. The toxicity database for
cyflumetofen is complete and adequate
to characterize potential pre- and/or
post-natal risk for infants and children.
ii. There are acute and subchronic
neurotoxicity studies available. There is
no indication that cyflumetofen is a
neurotoxic chemical in any of the
submitted studies for cyflumetofen, and
there is no need for a developmental
neurotoxicity study or additional UFs to
account for neurotoxicity.
iii. While there is evidence of
increased susceptibility in the rabbit
and rat developmental studies, these
studies have clearly defined NOAEL/
LOAELs based on the explanation in
Unit III.D.2. above.
iv. There are no residual uncertainties
identified in the exposure database.
Since the dietary and residential
exposure estimates were based on
conservative assumptions, EPA is
confident that this assessment does not
underestimate dietary (food and water)
or residential exposure.
E. 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
dietary risk assessment takes into
account acute exposure estimates from
dietary consumption of food and
drinking water. No acute dietary
exposure and risk analysis was
performed since there were no
appropriate studies identified in the
toxicology database that demonstrated
evidence of toxicity attributable to a
single dose.
2. Chronic risk. Using the exposure
assumptions described in the unit for
chronic exposure, EPA has concluded
that chronic exposure to cyflumetofen
from food and water will utilize 2.4% of
the cPAD for children 1–2 years old, the
population group receiving the greatest
exposure. Based on the explanation in
Unit III.C.3., regarding residential use
patterns, chronic residential exposure to
residues of cyflumetofen is not
expected.
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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). Cyflumetofen is
currently registered for use on
ornamentals that result in residential
handler exposure. Residential handler
exposure is expected to be short-term in
duration as intermediate- or long-term
exposures are not likely because of the
intermittent nature of applications by
homeowners, and the Agency has
determined that it is appropriate to
aggregate chronic exposure through food
and water with short-term residential
exposures to cyflumetofen.
Since no dermal hazard was
identified for cyflumetofen in the
toxicological database, only inhalation
exposure assessments were conducted
for residential handlers. The most
conservative residential exposure
scenario was chosen for the adult
population which reflects inhalation
exposure from mixing/loading/applying
the liquid cyflumetofen formulation
with a backpack sprayer. For
background dietary exposure, the adult
sub-population with the highest
exposure (adults 50–99) was chosen
since this is protective for all other adult
sub-populations. There are no
residential exposures expected for
children; therefore, a short-term
aggregate risk assessment for children is
equal to the chronic food and drinking
water exposure and risk estimates and is
not of concern. Using the exposure
assumptions described in this unit for
short-term exposures, EPA has
concluded the combined short-term
food, water, and residential exposures
result in aggregate MOEs above the LOC
of 100 for all scenarios assessed and are
not of concern.
4. Intermediate-term risk.
Intermediate-term aggregate exposure
takes into account intermediate-term
residential exposure plus chronic
exposure to food and water (considered
to be a background exposure level). An
intermediate-term adverse effect was
identified; however, cyflumetofen is not
registered for any use patterns that
would result in intermediate-term
residential exposure. Intermediate-term
risk is assessed based on intermediateterm 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
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chronic dietary risk assessment for
evaluating intermediate-term risk for
cyflumetofen.
5. Aggregate cancer risk for U.S.
population. As discussed in Unit III.A.,
EPA concluded that the nonlinear
approach for assessing potential cancer
risk from exposure to cyflumetofen is
appropriate. As noted in this Unit, the
chronic risk aggregate exposure to
cyflumetofen is below the Agency’s
level of concern; therefore, the Agency
concludes that there is not a cancer risk
of concern from exposure to
cyflumetofen.
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 cyflumetofen
residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
An adequate enforcement
methodology is available to enforce the
HED-recommended tolerances for
cyflumetofen in plant commodities. The
high-performance liquid
chromatography with tandem mass
spectrometry (HPLC–MS/MS) method
has been adequately validated, has
undergone a successful ILV
(independent laboratory validation), is
considered adequately radio-validated
and has been reviewed by the Agency
for appropriateness as an enforcement
method. The method limit of detection
(LOD) for residues of cyflumetofen in
tea is 0.01 ppm. Cyflumetofen has also
been subjected to analysis by the Food
and Drug Administration (FDA) multiresidue method (MRM) protocols.
Cyflumetofen is not adequately
recovered through any of the FDA
multi-residue protocols.
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
PO 00000
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Fmt 4700
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20041
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.
Codex has not established maximum
residue limits (MRLs) for residues of
cyflumetofen in tea commodities;
therefore, there are no harmonization
issues.
C. Revisions to Petitioned-For
Tolerances
To conform with to the Agency’s
preferred commodity vocabulary, EPA is
establishing the tolerance for tea on
‘‘tea, dried’’, which will cover residues
on all tea commodities.
V. Conclusion
Therefore, a tolerance is established
for residues of the insecticide
cyflumetofen, (2-methoxyethyl a-cyanoa-[4-(1,1-dimethylethyl)phenyl]-b-oxo2-(trifluoromethyl)benzenepropanoate),
in or on tea at 40 ppm.
VI. Statutory and Executive Order
Reviews
This action establishes a tolerance
under FFDCA section 408(d) 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 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), nor is considered a
regulatory action under Executive Order
13771, entitled ‘‘Reducing Regulations
and Controlling Regulatory Costs’’ (82
FR 9339, February 3, 2017). 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
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20042
Federal Register / Vol. 84, No. 89 / Wednesday, May 8, 2019 / Rules and Regulations
khammond on DSKBBV9HB2PROD with RULES
Populations’’ (59 FR 7629, February 16,
1994).
Since tolerances and exemptions that
are established on the basis of a petition
under FFDCA section 408(d), 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 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
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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).
VII. 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).
Dated: April 26, 2019.
Donna Davis,
Acting 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 § 180.677, add alphabetically the
commodity ‘‘tea, dried’’ to the table in
paragraph (a) to read as follows:
■
§ 180.677 Cyflumetofen; tolerances for
residues.
(a) * * *
*
*
*
*
Tea, dried 1 .................................
*
List of Subjects in 40 CFR Part 180
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
PO 00000
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Fmt 4700
Sfmt 9990
Parts per
million
Commodity
*
*
*
*
40
*
1 There are no U.S. registrations for this
commodity as of May 8, 2019.
*
*
*
*
*
[FR Doc. 2019–09377 Filed 5–7–19; 8:45 am]
BILLING CODE 6560–50–P
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Agencies
[Federal Register Volume 84, Number 89 (Wednesday, May 8, 2019)]
[Rules and Regulations]
[Pages 20037-20042]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-09377]
=======================================================================
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2017-0532; FRL-9990-60]
Cyflumetofen; Pesticide Tolerances
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes tolerances for residues of the
insecticide cyflumetofen in or on tea, dried. OAT Agrio. Ltd., Tokyo,
Japan c/o Landis International, Inc. requested these tolerances under
the Federal Food, Drug, and Cosmetic Act (FFDCA).
DATES: This regulation is effective May 8, 2019. Objections and
requests for hearings must be received on or before July 8, 2019 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-2017-0532, 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, P.E., Director,
Registration Division (750P), Office of Pesticide Programs,
Environmental Protection Agency, 1200 Pennsylvania Ave. NW, Washington,
DC 20460-0001; main telephone number: (703) 305-7090; email address:
[email protected].
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:
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 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/text-idx?&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
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-2017-0532 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
July 8, 2019. 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-2017-0532, 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. Summary of Petitioned-For Tolerance
In the Federal Register of December 15, 2017 (82 FR 59604) (FRL-
9970-50), EPA issued a document pursuant to FFDCA section 408(d)(3), 21
U.S.C. 346a(d)(3), announcing the filing of a pesticide petition (PP
7E8609) by OAT Agrio. Ltd., Tokyo, Japan, c/o Landis International,
Inc., 3185 Madison Highway, P.O. Box 5126, Valdosta,
[[Page 20038]]
Georgia 31603-5126. The petition requested that 40 CFR 180.677 be
amended by establishing tolerances for residues of the insecticide
cyflumetofen, (2-methoxyethyl [alpha]-cyano-[alpha]-[4-(1,1-
dimethylethyl)phenyl]-[beta]-oxo-2-(trifluoromethyl)benzenepropanoate),
in or on tea at 40 parts per million (ppm). That document referenced a
summary of the petition prepared by OAT Agrio. Ltd. c/o Landis
International, Inc., the registrant, which is available in the docket,
https://www.regulations.gov. These tolerances were requested to cover
residues of cyflumetofen in or on tea resulting from use of this
pesticide on tea outside the United States. There is no current U.S.
registration for use of cyflumetofen on tea. Four comments were
submitted to the docket concerning issues outside the scope of this
rulemaking.
Based upon review of the data supporting the referenced petition,
EPA is establishing a tolerance for residues of cyflumetofen on tea,
dried.
III. 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 FFDCA section 408(b)(2)(D), and the factors
specified in FFDCA section 408(b)(2)(D), EPA has reviewed the available
scientific data and other relevant information in support of this
action. EPA has sufficient data to assess the hazards of and to make a
determination on aggregate exposure for cyflumetofen including exposure
resulting from the tolerances established by this action. EPA's
assessment of exposures and risks associated with cyflumetofen follows.
A. Toxicological Profile
EPA has evaluated the available toxicity data and considered its
validity, completeness, and reliability as well as the relationship of
the results of the studies to human risk. EPA has also considered
available information concerning the variability of the sensitivities
of major identifiable subgroups of consumers, including infants and
children.
Cyflumetofen has a low acute toxicity via the acute oral, dermal,
and inhalation routes of exposure. It is minimally irritating to the
eyes but not to the skin. Cyflumetofen is a skin sensitizer. The major
target organ in rats, mice, and dogs following short- and long-term
oral administration of cyflumetofen is the adrenal glands characterized
by increased organ weight and histopathology (vacuolation and
hypertrophy of the adrenal cortical cells).
There is no evidence of increased qualitative or quantitative
susceptibility in the rat 2-generation reproduction study; however, the
rat and rabbit developmental studies indicate susceptibility in the
pups. There is evidence of increased quantitative susceptibility in the
rabbit developmental toxicity study, since developmental effects at the
limit dose were observed where no maternal toxicity was present. There
is evidence of increased qualitative susceptibility in the rat
developmental toxicity study as developmental effects were seen at the
same dose that caused an increase in adrenal weights and organ-to-body
weight ratio in the maternal animals.
There is no evidence of neurotoxicity in any of the submitted
studies for cyflumetofen.
Cyflumetofen has been classified as having ``Suggestive Evidence of
Carcinogenic Potential'' in accordance with the EPA's Final Guidelines
for Carcinogen Risk Assessment (March 2005). This classification is
based on the presence of a single tumor type (thyroid c-cell) in one
sex (male) and one species (rat), and the lack of concern for
mutagenicity. When there is suggestive evidence of carcinogenicity, the
Agency does not attempt a dose-response assessment as the nature of the
data generally would not support one. Therefore, the Agency has
determined that quantification of risk using a non-linear approach
(i.e., the chronic reference dose) will adequately protect for all
chronic toxicity, including carcinogenicity, likely to result from
exposure to cyflumetofen.
More detailed information on the studies received and the nature of
the adverse effects caused by cyflumetofen as well as the NOAEL and the
LOAEL from the toxicological studies can be found in the document
entitled, ``Cyflumetofen. Human Health Risk Assessment to Support New
Uses on Imported Tea,'' dated March 4, 2019, by going to https://www.regulations.gov. The referenced document is available in the docket
established by this action, which is described under ADDRESSES. Locate
and click on the hyperlink for docket ID number EPA-HQ-OPP-2017-0532.
Double-click on the document to view the referenced information.
B. 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://www.epa.gov/pesticides/factsheets/riskassess.htm.
A summary of the toxicological endpoints for cyflumetofen used for
human risk assessment is shown in the Table of this unit.
[[Page 20039]]
Table --Summary of Toxicological Doses and Endpoints for Cyflumetofen for Use in Human Health Risk Assessment
----------------------------------------------------------------------------------------------------------------
Point of departure
Exposure/scenario and uncertainty/ RfD, PAD, LOC for Study and toxicological effects
safety factors risk assessment
----------------------------------------------------------------------------------------------------------------
Acute Dietary (All Populations).. An acute RfD has not been established for either the general U.S. population
or for females 13-49 years of age since there were no appropriate studies
that demonstrated evidence of toxicity attributable to a single dose for
these populations.
----------------------------------------------------------------------------------------------------------------
Chronic dietary (All Populations) NOAEL = 16.5 mg/kg/ Chronic RfD = 0.17 Three co-critical studies:
day. mg/kg/day. 90-Day Feeding Study in Rats.
UFA = 10x........... cPAD = 0.17 mg/kg/ LOAEL = 1,000 ppm (54.5/62.8 mg/
UFH = 10x........... day. kg/day in males/females) based on
FQPA SF = 1x........ hematology and organ weight
changes in the liver, adrenal,
kidney and ovaries; and
histopathology effects in the
adrenals and the ovaries. NOAEL =
300 ppm (16.5/19 mg/kg/day in
males/females).
Chronic Toxicity/Carcinogenicity
Study in Rats. LOAEL = 1,500 ppm
(49.5/61.9 mg/kg/day in males/
females) based on increased
adrenal weights and
histopathology. NOAEL = 500 ppm
(16.5/20.3 mg/kg/day in males/
females).
Two-Generation Reproduction Study
in Rats. Parental: LOAEL = 500
ppm (30.6/46.6 mg/kg/day in males/
females) based on increased organ
weight and histopathology in
adrenals. NOAEL = 150 ppm (9.2/
13.8 mg/kg/day in males/females).
----------------------------------------------------------------------------------------------------------------
Adult and Incidental Oral (Short- NOAEL = 16.5 mg/kg/ LOC for MOE = <100. Same as chronic dietary endpoint.
and Intermediate-Term). day.
UFA = 10x...........
UFH = 10x...........
FQPA SF = 1x........
----------------------------------------------------------------------------------------------------------------
Dermal (Short- and Intermediate- No dermal hazard was identified. No appropriate endpoint was selected for
Term). risk assessment.
----------------------------------------------------------------------------------------------------------------
Inhalation (Short- and NOAEL = 16.5 mg/kg/ Occupational and Same as chronic dietary endpoint.
Intermediate-Term). day. Residential LOC
UFA = 10x........... for MOE = <100.
UFH = 10x...........
FQPA SF = 1x........
----------------------------------------------------------------------------------------------------------------
Cancer (Oral, Dermal, and Classification: ``Suggestive Evidence of Carcinogenic Potential.''
Inhalation).
----------------------------------------------------------------------------------------------------------------
Point of Departure (POD) = A data point or an estimated point that is derived from observed dose-response data
and used to mark the beginning of extrapolation to determine risk associated with lower environmentally
relevant human exposures. NOAEL = no observed adverse effect level. LOAEL = lowest observed adverse effect
level. UF = uncertainty factor. UFA = extrapolation from animal to human (interspecies). UFH = potential
variation in sensitivity among members of the human population (intraspecies). FQPA SF = Food Quality
Protection Act Safety Factor. PAD = population adjusted dose (a = acute, c = chronic). RfD = reference dose.
MOE = margin of exposure. LOC = level of concern. N/A = not applicable.
More detailed information on the toxicological endpoints for
cyflumetofen can be found in the document entitled, ``Cyflumetofen.
Human Health Risk Assessment to Support New Uses on Imported Tea,''
dated March 4, 2019, by going to https://www.regulations.gov. The
referenced document is available in the docket established by this
action, which is described under ADDRESSES. Locate and click on the
hyperlink for docket ID number EPA-HQ-OPP-2017-0532. Double-click on
the document to view the referenced information.
C. Exposure Assessment
1. Dietary exposure from food and feed uses. In evaluating dietary
exposure to cyflumetofen, EPA considered exposure under the petitioned-
for tolerances as well as all existing cyflumetofen tolerances in 40
CFR 180.677. EPA assessed dietary exposures from cyflumetofen in food
as follows:
i. Acute exposure. No acute dietary exposure and risk analysis was
performed since there were no appropriate studies identified in the
toxicology database that demonstrated evidence of toxicity attributable
to a single dose.
ii. Chronic exposure. An unrefined chronic dietary analysis was
conducted that was based on tolerance-level residues, 100% crop treated
(%CT) assumptions, and empirical processing estimates when available or
DEEM\TM\ processing factors. Using assumptions considered to be highly
protective, the estimated dietary risks ranged from <1% of the cPAD for
the general U.S. population to 2.4% of the cPAD for the highest exposed
population subgroup of children 1-2 years old. The Agency's LOC is
<100% cPAD.
iii. Cancer. As explained in unit III.A., quantification of risk
using a non-linear approach (i.e., a cPAD) will adequately account for
all chronic toxicity, including carcinogenicity, that could result from
exposure to cyflumetofen.
iv. Anticipated residue and percent crop treated (PCT) information.
EPA did not use anticipated residue information in the dietary
assessment for cyflumetofen. Tolerance-level residues and/or 100% CT
were assumed for all food commodities.
More detailed information on the acute and chronic dietary (food
only) exposure and risk assessment for cyflumetofen can be found in the
document entitled, ``Cyflumetofen. Human Health Risk Assessment to
Support New Uses on Imported Tea,'' dated March 4, 2019, by going to
https://www.regulations.gov. The referenced document is available in the
docket established by this action, which is described under ADDRESSES.
Locate and click on the hyperlink for docket ID number EPA-HQ-OPP-2017-
0532. Double-click on the document to view the referenced information.
2. Dietary exposure from drinking water. The Agency used screening
level water exposure models in the dietary exposure analysis and risk
assessment for cyflumetofen in drinking water. These simulation models
take into account data on the physical, chemical, and fate/transport
characteristics of cyflumetofen. Further information regarding EPA
drinking water models used in pesticide exposure assessment
[[Page 20040]]
can be found at https://www.epa.gov/oppefed1/models/water/index.htm.
The estimated drinking water concentrations (EDWCs) previously used
in the dietary risk assessment were incorporated directly into this
dietary assessment. The Pesticide Root Zone Model/Exposure Analysis
Modeling System (PRZM/EXAMS) simulations of a NY grapes scenario
produced the highest surface-water EDWCs (0.33 ppb for chronic dietary
exposure) and an updated EDWC was not required for this assessment
since the proposed use on imported tea will not impact the previously
provided estimates.
Modeled estimates of drinking water concentrations were directly
entered into the dietary exposure model. For chronic dietary risk
assessment, the water concentration of value 0.33 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). The registered uses
of cyflumetofen on ornamentals may result in adult residential handler
and post-application exposure. This exposure is expected to be only
short-term in duration (i.e., 1 to 30 days) as intermediate- or long-
term exposures are not likely based on the intermittent nature of
applications by homeowners. Since no dermal hazard was identified for
cyflumetofen in the toxicological database, only inhalation exposure
assessments were conducted. The resulting inhalation margins of
exposure (MOEs) for all scenarios are not of concern since they are
above the level of concern (LOC) of 100 (MOEs >=100). Based on the
registered use pattern, exposure to children in residential settings is
not anticipated. Further information regarding EPA standard assumptions
and generic inputs for residential exposures may be found at https://www.epa.gov/pesticides/trac/science/trac6a05.pdf.
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 cyflumetofen to share a common mechanism of
toxicity with any other substances, and cyflumetofen does not appear to
produce a toxic metabolite produced by other substances. For the
purposes of this tolerance action, therefore, EPA has assumed that
cyflumetofen 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 website at https://www.epa.gov/pesticides/cumulative.
D. 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 when reliable data available to EPA support the choice of
a different factor.
2. Prenatal and postnatal sensitivity. There is no evidence of
increased qualitative or quantitative susceptibility in the rat 2-
generation reproduction study; however, the rat and rabbit
developmental studies indicate susceptibility in the pups. There is
evidence of increased quantitative susceptibility in the rabbit
developmental toxicity study, since developmental effects (changes in
ossicification, paw flexion, and decreased fetal body weights) at the
limit dose were observed where no maternal toxicity was present. There
is evidence of increased qualitative susceptibility in the rat
developmental toxicity study as developmental effects (increased
incidence of incompletely ossified sternal centra) were seen at the
same dose that caused an increase in adrenal weights and organ-to-body
weight ratio in the maternal animals. Notwithstanding, the degree of
concern for these effects in infants and children is low because the
rat and rabbit developmental effects have clearly defined NOAEL/LOAELs
and the dose selected for chronic risk assessment is protective of
these effects. Therefore, the PODs based on adrenal effects in rat are
health protective of all life stages.
3. Conclusion. EPA has determined that reliable data show the
safety of infants and children would be adequately protected if the
FQPA SF were reduced to 1X. That decision is based on the following
findings:
i. The toxicity database for cyflumetofen is complete and adequate
to characterize potential pre- and/or post-natal risk for infants and
children.
ii. There are acute and subchronic neurotoxicity studies available.
There is no indication that cyflumetofen is a neurotoxic chemical in
any of the submitted studies for cyflumetofen, and there is no need for
a developmental neurotoxicity study or additional UFs to account for
neurotoxicity.
iii. While there is evidence of increased susceptibility in the
rabbit and rat developmental studies, these studies have clearly
defined NOAEL/LOAELs based on the explanation in Unit III.D.2. above.
iv. There are no residual uncertainties identified in the exposure
database. Since the dietary and residential exposure estimates were
based on conservative assumptions, EPA is confident that this
assessment does not underestimate dietary (food and water) or
residential exposure.
E. 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 dietary risk assessment takes
into account acute exposure estimates from dietary consumption of food
and drinking water. No acute dietary exposure and risk analysis was
performed since there were no appropriate studies identified in the
toxicology database that demonstrated evidence of toxicity attributable
to a single dose.
2. Chronic risk. Using the exposure assumptions described in the
unit for chronic exposure, EPA has concluded that chronic exposure to
cyflumetofen from food and water will utilize 2.4% of the cPAD for
children 1-2 years old, the population group receiving the greatest
exposure. Based on the explanation in Unit III.C.3., regarding
residential use patterns, chronic residential exposure to residues of
cyflumetofen is not expected.
[[Page 20041]]
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). Cyflumetofen
is currently registered for use on ornamentals that result in
residential handler exposure. Residential handler exposure is expected
to be short-term in duration as intermediate- or long-term exposures
are not likely because of the intermittent nature of applications by
homeowners, and the Agency has determined that it is appropriate to
aggregate chronic exposure through food and water with short-term
residential exposures to cyflumetofen.
Since no dermal hazard was identified for cyflumetofen in the
toxicological database, only inhalation exposure assessments were
conducted for residential handlers. The most conservative residential
exposure scenario was chosen for the adult population which reflects
inhalation exposure from mixing/loading/applying the liquid
cyflumetofen formulation with a backpack sprayer. For background
dietary exposure, the adult sub-population with the highest exposure
(adults 50-99) was chosen since this is protective for all other adult
sub-populations. There are no residential exposures expected for
children; therefore, a short-term aggregate risk assessment for
children is equal to the chronic food and drinking water exposure and
risk estimates and is not of concern. Using the exposure assumptions
described in this unit for short-term exposures, EPA has concluded the
combined short-term food, water, and residential exposures result in
aggregate MOEs above the LOC of 100 for all scenarios assessed and are
not of concern.
4. Intermediate-term risk. Intermediate-term aggregate exposure
takes into account intermediate-term residential exposure plus chronic
exposure to food and water (considered to be a background exposure
level). An intermediate-term adverse effect was identified; however,
cyflumetofen 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
cyflumetofen.
5. Aggregate cancer risk for U.S. population. As discussed in Unit
III.A., EPA concluded that the nonlinear approach for assessing
potential cancer risk from exposure to cyflumetofen is appropriate. As
noted in this Unit, the chronic risk aggregate exposure to cyflumetofen
is below the Agency's level of concern; therefore, the Agency concludes
that there is not a cancer risk of concern from exposure to
cyflumetofen.
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 cyflumetofen residues.
IV. Other Considerations
A. Analytical Enforcement Methodology
An adequate enforcement methodology is available to enforce the
HED-recommended tolerances for cyflumetofen in plant commodities. The
high-performance liquid chromatography with tandem mass spectrometry
(HPLC-MS/MS) method has been adequately validated, has undergone a
successful ILV (independent laboratory validation), is considered
adequately radio-validated and has been reviewed by the Agency for
appropriateness as an enforcement method. The method limit of detection
(LOD) for residues of cyflumetofen in tea is 0.01 ppm. Cyflumetofen has
also been subjected to analysis by the Food and Drug Administration
(FDA) multi-residue method (MRM) protocols. Cyflumetofen is not
adequately recovered through any of the FDA multi-residue protocols.
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:
[email protected].
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.
Codex has not established maximum residue limits (MRLs) for
residues of cyflumetofen in tea commodities; therefore, there are no
harmonization issues.
C. Revisions to Petitioned-For Tolerances
To conform with to the Agency's preferred commodity vocabulary, EPA
is establishing the tolerance for tea on ``tea, dried'', which will
cover residues on all tea commodities.
V. Conclusion
Therefore, a tolerance is established for residues of the
insecticide cyflumetofen, (2-methoxyethyl [alpha]-cyano-[alpha]-[4-
(1,1-dimethylethyl)phenyl]-[beta]-oxo-2-
(trifluoromethyl)benzenepropanoate), in or on tea at 40 ppm.
VI. Statutory and Executive Order Reviews
This action establishes a tolerance under FFDCA section 408(d) 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 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), nor is considered a regulatory
action under Executive Order 13771, entitled ``Reducing Regulations and
Controlling Regulatory Costs'' (82 FR 9339, February 3, 2017). 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 20042]]
Populations'' (59 FR 7629, February 16, 1994).
Since tolerances and exemptions that are established on the basis
of a petition under FFDCA section 408(d), 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 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).
VII. 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: April 26, 2019.
Donna Davis,
Acting 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. 180.677, add alphabetically the commodity ``tea, dried'' to
the table in paragraph (a) to read as follows:
Sec. 180.677 Cyflumetofen; tolerances for residues.
(a) * * *
------------------------------------------------------------------------
Parts per
Commodity million
------------------------------------------------------------------------
* * * * *
Tea, dried \1\.............................................. 40
* * * * *
------------------------------------------------------------------------
\1\ There are no U.S. registrations for this commodity as of May 8,
2019.
* * * * *
[FR Doc. 2019-09377 Filed 5-7-19; 8:45 am]
BILLING CODE 6560-50-P