n-Butyl benzoate; Exemptions From the Requirement of a Tolerance, 32029-32034 [2015-13818]
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[FR Doc. 2015–13680 Filed 6–4–15; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
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:
Susan Lewis, 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:
[EPA–HQ–OPP–2014–0265; FRL–9927–65]
I. General Information
n-Butyl benzoate; Exemptions From
the Requirement of a Tolerance
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).
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This regulation establishes
exemptions from the requirement of a
tolerance for residues of n-butyl
benzoate (CAS Reg. No. 136–60–7)
when used as an inert ingredient
(solvent) in pesticide formulations
applied to growing crops, raw
agricultural commodities after harvest,
and animals and when used as an inert
ingredient in antimicrobial formulations
in food-contact surface sanitizer
products at a maximum level in the enduse concentration of 15,000 parts per
million (ppm). Exponent, Inc., on behalf
Huntsman Corp., submitted a petition to
EPA under the Federal Food, Drug, and
Cosmetic Act (FFDCA), requesting
establishment of an exemption from the
requirement of a tolerance. This
regulation eliminates the need to
establish a maximum permissible level
for residues of n-butyl benzoate.
DATES: This regulation is effective June
5, 2015. Objections and requests for
hearings must be received on or before
August 4, 2015, and must be filed in
accordance with the instructions
provided in 40 CFR part 178 (see also
Unit I.C. of the SUPPLEMENTARY
INFORMATION).
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SUMMARY:
The docket for this action,
identified by docket identification (ID)
number EPA–HQ–OPP–2014–0265, is
available at https://www.regulations.gov
or at the Office of Pesticide Programs
Regulatory Public Docket (OPP Docket)
ADDRESSES:
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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 Publishing
Office’s e-CFR site at https://
www.ecfr.gov/cgi-bin/textidx?&c=ecfr&tpl=/ecfrbrowse/Title40/
40tab_02.tpl. To access the OCSPP test
guidelines referenced in this document
electronically, please go to https://
www.epa.gov/ocspp and select ‘‘Test
Methods and Guidelines.’’
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
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32029
provided in 40 CFR part 178. To ensure
proper receipt by EPA, you must
identify docket ID number EPA–HQ–
OPP–2014–0265 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 August 4, 2015. 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–
2014–0265, 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. Petition for Exemption
In the Federal Register of October 24,
2014 (Vol. 79 FR 63594) (FRL–9916–03),
EPA issued a document pursuant to
FFDCA section 408, 21 U.S.C. 346a,
announcing the filing of a pesticide
petition (PP IN–10682) by Exponent,
Inc., 1150 Connecticut Ave. NW., Suite
1100, Washington, DC 20035 on behalf
Huntsman Corp., 8600 Gosling Road,
The Woodlands, TX 77381. The petition
requested that 40 CFR 180.910, 180.930,
and 180.940 be amended by establishing
an exemption from the requirement of a
tolerance for residues of n-butyl
benzoate (CAS Reg. No. 136–60–7)
when used as an inert ingredient
(solvent) in pesticide formulations
applied to growing crops, raw
agricultural commodities after harvest,
and animals and when used as an inert
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ingredient in antimicrobial formulations
in food-contact surface sanitizer
products. That document referenced a
summary of the petition prepared by
Exponent, Inc., on behalf Huntsman
Corp., the petitioner, which is available
in the docket, https://
www.regulations.gov. No tolerancerelated comments were received on the
notice of filing.
Based on a review of the data
submitted in support of this petition,
EPA has modified the exemption
requested by limiting the amount of nbutyl benzoate allowed in food contact
sanitizing solutions to a maximum
15,000 ppm (1.5%). This limitation is
based on the Agency’s risk assessment
which can be found at https://
www.regulations.gov in document ‘‘nButyl Benzoate; Human Health Risk
Assessment and Ecological Effects
Assessment to Support Proposed
Exemption from the Requirement of a
Tolerance When Used as an Inert
Ingredient in Pesticide Formulations,’’
in docket ID number EPA–HQ–OPP–
2014–0265.
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III. Inert Ingredient Definition
Inert ingredients are all ingredients
that are not active ingredients as defined
in 40 CFR 153.125 and include, but are
not limited to, the following types of
ingredients (except when they have a
pesticidal efficacy of their own):
Solvents such as alcohols and
hydrocarbons; surfactants such as
polyoxyethylene polymers and fatty
acids; carriers such as clay and
diatomaceous earth; thickeners such as
carrageenan and modified cellulose;
wetting, spreading, and dispersing
agents; propellants in aerosol
dispensers; microencapsulating agents;
and emulsifiers. The term ‘‘inert’’ is not
intended to imply nontoxicity; the
ingredient may or may not be
chemically active. Generally, EPA has
exempted inert ingredients from the
requirement of a tolerance based on the
low toxicity of the individual inert
ingredients.
IV. Aggregate Risk Assessment and
Determination of Safety
Section 408(c)(2)(A)(i) of FFDCA
allows EPA to establish an exemption
from the requirement for 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
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reliable information.’’ This includes
exposure through drinking water and in
residential settings, but does not include
occupational exposure. Section
408(b)(2)(C) of FFDCA requires EPA to
give special consideration to exposure
of infants and children to the pesticide
chemical residue in establishing a
tolerance and to ‘‘ensure that there is a
reasonable certainty that no harm will
result to infants and children from
aggregate exposure to the pesticide
chemical residue. . . .’’
EPA establishes exemptions from the
requirement of a tolerance only in those
cases where it can be clearly
demonstrated that the risks from
aggregate exposure to pesticide
chemical residues under reasonably
foreseeable circumstances will pose no
appreciable risks to human health. In
order to determine the risks from
aggregate exposure to pesticide inert
ingredients, the Agency considers the
toxicity of the inert in conjunction with
possible exposure to residues of the
inert ingredient through food, drinking
water, and through other exposures that
occur as a result of pesticide use in
residential settings. If EPA is able to
determine that a finite tolerance is not
necessary to ensure that there is a
reasonable certainty that no harm will
result from aggregate exposure to the
inert ingredient, an exemption from the
requirement of a tolerance may be
established.
Consistent with FFDCA section
408(c)(2)(A), and the factors specified in
FFDCA section 408(c)(2)(B), 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 n-butyl benzoate
including exposure resulting from the
exemption established by this action.
EPA’s assessment of exposures and risks
associated with n-butyl benzoate
follows.
A. Toxicological Profile
EPA has evaluated the available
toxicity data and considered their
validity, completeness, and reliability as
well as the relationship of the results of
the studies to human risk. EPA has also
considered available information
concerning the variability of the
sensitivities of major identifiable
subgroups of consumers, including
infants and children. Specific
information on the studies received and
the nature of the adverse effects caused
by n-butyl benzoate as well as the noobserved-adverse-effect-level (NOAEL)
and the lowest-observed-adverse-effect-
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level (LOAEL) from the toxicity studies
are discussed in this unit.
In acute oral, dermal, and inhalation
toxicity studies in rats, n-butyl benzoate
was found to be slightly toxic to
nontoxic. In primary eye and dermal
irritation studies in rabbits, n-butyl
benzoate was found to be minimally
irritating. In a dermal sensitization
study in guinea pigs, n-butyl benzoate
was not a dermal sensitizer.
In a combined repeated dose toxicity
study with the reproduction/
developmental toxicity screening test, nbutyl benzoate was administered daily
to rats by gavage at doses of 0 (vehicle
control), 250, 500 and 1,000 mg/kg bw/
day. The NOAEL for parental toxicity
was 1,000 mg/kg/day; the highest dose
tested. The LOAEL for parental toxicity
was not observed in this study. The
NOAEL for embryo-fetal toxicity was
500 mg/kg bw/day based on increased
pup mortality on post-natal day zero
observed at the LOAEL of 1,000 mg/kg/
day.
No positive mutagenic response was
observed for n-butyl benzoate in a
reverse bacterial mutation assay.
No chronic toxicity data for n-butyl
benzoate are available.
There are no cancer studies available
for n-butyl benzoate. n-Butyl benzoate is
metabolized by esterase mediated
hydrolysis resulting in the formation of
two major polar metabolites, n-butyl
alcohol and benzoic acid. Each
metabolite enters other degradation
pathways to be rapidly metabolized
and/or excreted. Based on predicted
rapid metabolism and excretion, the
lack of specific target organ toxicity in
the OCSPP Harmonized Test Guideline
870.3650 study, the results of
genotoxicity testing being negative, and
a Quantitative Structure Activity
Relationship (QSAR) expert model,
DEREK Nexus, that indicates no
structural alerts for carcinogenicity, nbutyl benzote is not expected to be
carcinogenic.
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
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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.
1. Acute dietary (all populations).
There were no adverse effects observed
attributable to a single dose for the
general population (including infants
and children) or females 13–49 years of
age.
2. Chronic dietary (all populations).
The chronic population adjusted dose
(cPAD) of 5 mg/kg/day is established
based on the NOAEL of 500 mg/kg/day
from a combined repeated dose toxicity
study with the reproduction/
developmental toxicity screening test in
rats. The adverse effects seen in this
study were increased pup mortality
observed at the LOAEL of 1,000 mg/kg/
day. The Food Quality Protection Act
(FQPA) safety factor/database
uncertainty factor of 1X and 10X intraand interspecies uncertainty factors are
utilized for dietary risk assessment.
3. Dermal, short- and intermediateterm. The level of concern (LOC) for
short- and intermediate-term dermal
exposure is a margin of exposure (MOE)
of 100 and the assessment is based on
the NOAEL (500 mg/kg/day) from the
combined repeated dose toxicity study
with the reproduction/developmental
toxicity screening test in rats.
4. Inhalation, short- and intermediate
term. The LOC for short- and
intermediate-term inhalation exposure
is a MOE of 100 and the assessment is
based on the NOAEL (500 mg/kg/day)
from the combined repeated dose
toxicity study with the reproduction/
developmental toxicity screening test in
rats.
5. Quantification of cancer risk is not
appropriate since there are no concerns
for cancer based on data that n-butyl
benzoate is metabolized by esterase
mediated hydrolysis resulting in the
formation of two major polar
metabolites, n-butyl alcohol and benzoic
acid, neither substance being a concern
for cancer. In addition, there is a lack of
specific target organ toxicity in the
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OCSPP Harmonized Test Guideline
870.3650 study, the results of
genotoxicity testing for n-butyl benzoate
are negative, and QSAR expert model,
DEREK Nexus, indicates that there are
no structural alerts for carcinogenicity.
As such, n-butyl benzote is not expected
to be carcinogenic.
C. Exposure Assessment
1. Dietary exposure from food and
feed uses. In evaluating dietary
exposure to n-butyl benzoate, EPA
considered exposure under the
proposed exemption from the
requirement of a tolerance. EPA
assessed dietary exposures from n-butyl
benzoate in food as follows:
The Agency assessed the dietary
exposures to n-butyl benzoate as an
inert ingredient for use in pesticide
formulations applied to growing crops,
raw agricultural commodities, and
livestock as well as an inert ingredient
for use in food-contact surface sanitizing
solutions. In the case of dietary
exposures to n-butyl benzoate as an
inert ingredient used in pesticide
formulations applied to growing crops,
raw agricultural commodities, and
livestock, a chronic dietary exposure
assessment was conducted using the
Dietary Exposure Evaluation Model/
Food Commodity Intake Database
(DEEM–FCID)TM, Version 3.16. EPA
used food consumption information
from the U.S. Department of
Agriculture’s National Health and
Nutrition Examination Survey, What We
Eat in America, (NHANES/WWEIA).
This dietary survey was conducted from
2003 to 2008. As to residue levels in
food, no residue data were submitted for
n-butyl benzoate. In the absence of
specific residue data, EPA has
developed an approach that uses
surrogate information to derive upper
bound exposure estimates for the
subject inert ingredient. Upper bound
exposure estimates are based on the
highest tolerance for a given commodity
from a list of high-use insecticides,
herbicides, and fungicides. A complete
description of the general approach
taken to assess inert ingredient risks in
the absence of residue data is contained
in the memorandum entitled ‘‘Alkyl
Amines Polyalkoxylates (Cluster 4):
Acute and Chronic Aggregate (Food and
Drinking Water) Dietary Exposure and
Risk Assessments for the Inerts.’’
(D361707, S. Piper, 2/25/09) and can be
found at https://www.regulations.gov in
docket ID number EPA–HQ–OPP–2008–
0738.
In the case of the proposed use of nbutyl benzoate as an inert ingredient in
food-contact sanitizing pesticide
products, EPA has utilized a
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32031
conservative, health-protective method
of estimating dietary intake that is based
upon conservative assumptions related
to the amount of residues that can be
transferred to foods as a result of the
proposed use. This same methodology
has been utilized by FDA in estimating
dietary exposures to antimicrobial
pesticides used in food-handling
settings. A complete description of the
approach used to assess dietary
exposures resulting from food contact
sanitizing solution uses of n-butyl
benzoate can be found at https://
www.regulations.gov in document ‘‘nButyl Benzoate; Human Health Risk
Assessment and Ecological Effects
Assessment to Support Proposed
Exemption from the Requirement of a
Tolerance When Used as an Inert
Ingredient in Pesticide Formulations,’’
pp. 13–15 in docket ID number EPA–
HQ–OPP–2014–0265.
The exposures from food and food
contact sanitizing are then added
together for the final dietary exposure
assessment.
2. Dietary exposure from drinking
water. For the purpose of the screening
level dietary risk assessment to support
this request for an exemption from the
requirement of a tolerance for n-butyl
benzoate, a conservative drinking water
concentration value of 100 ppb based on
screening level modeling was used to
assess the contribution to drinking
water for the chronic dietary risk
assessments for parent compound.
These values were directly entered into
the dietary exposure model.
3. From non-dietary exposure. The
term ‘‘residential exposure’’ is used in
this document to refer to nonoccupational, non-dietary exposure
(e.g., textiles (clothing and diapers),
carpets, swimming pools, and hard
surface disinfection on walls, floors,
tables).
There are no current or proposed
residential uses for n-butyl benzoate,
however it is possible that n-butyl
benzoate may be used as an inert
ingredient in pesticide products that
may have uses resulting in potential
residential exposures. A complete
description of the approach used to
assess possible residential exposures
from n-butyl benzoate can be found at
https://www.regulations.gov in document
‘‘n-Butyl Benzoate; Human Health Risk
Assessment and Ecological Effects
Assessment to Support Proposed
Exemption from the Requirement of a
Tolerance When Used as an Inert
Ingredient in Pesticide Formulations,’’
pp. 16 in docket ID number EPA–HQ–
OPP–2014–0265.
4. Cumulative effects from substances
with a common mechanism of toxicity.
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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 n-butyl benzoate
to share a common mechanism of
toxicity with any other substances, and
n-butyl benzoate does not appear to
produce a toxic metabolite produced by
other substances. For the purposes of
this tolerance action, therefore, EPA has
assumed that n-butyl benzoate 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://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
FQPA Safety Factor (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 an evidence of increased
susceptibility of infants and children in
the OECD 422 study in rats. In this
study, the NOAEL for parental toxicity
was 1,000 mg/kg/day; the highest dose
tested while the NOAEL for embryofetal toxicity was 500 mg/kg/day based
on increased pup mortality on postnatal day zero seen at the LOAEL of
1,000 mg/kg/day. However, the concern
for this susceptibility is low because
there is clear NOAEL established in the
study protecting the offspring, and
regulatory doses were selected to be
protective of these effects. No other
residual uncertainties were identified
with respect to susceptibility. The
endpoints and doses selected for the
dietary risk assessment of n-butyl
benzoate are protective of adverse
effects in both offspring and adults.
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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 n-butyl
benzoate contains acute toxicity,
subchronic toxicity, reproductive
toxicity, developmental toxicity, and
genotoxicity data. No immunotoxicity or
neurotoxicity study is available;
however, there was no evidence of any
triggers for immunotoxicity or
neurotoxicity in the database. Therefore,
there is no need for immunotoxicity or
neurotoxicity study at this time and no
need for additional uncertainty factor
for the lack of those studies.
ii. Although there is evidence that nbutyl benzoate results in increased
susceptibility in the combined repeated
dose toxicity study with the
reproduction/developmental toxicity
screening test in rats, that study
identified a clear NOAEL for offspring
effects, which the Agency is using as the
endpoint for its assessment. Therefore,
the concern for these effects is low and
there is no need for an additional
uncertainty factor.
iii. There are no residual uncertainties
identified in the exposure databases.
The dietary food exposure assessments
were performed based on 100% CT and
tolerance-level residues, as well as
conservative assumptions for foodcontact surface sanitizers. EPA made
conservative (protective) assumptions in
the ground and surface water modeling
used to assess exposure to n-butyl
benzoate in drinking water. These
assessments will not underestimate the
exposure and risks posed by n-butyl
benzoate.
E. Aggregate Risks and Determination of
Safety
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, n-butyl benzoate is
not expected to pose an acute risk.
2. Chronic risk. Using the exposure
assumptions described in this unit for
chronic exposure, EPA has concluded
that chronic exposure to n-butyl
benzoate from food and water will
utilize 21.0% of the cPAD for the U.S.
population and 94.1% of the cPAD for
children 1–2 years old, the population
group receiving the greatest exposure.
3. Short- and intermediate-term risk.
Short- and intermediate-term aggregate
exposure takes into account short- and
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intermediate-term residential exposure
plus chronic exposure to food and water
(considered to be a background
exposure level). While n-butyl benzoate
is not currently used as an inert
ingredient in pesticide products that are
registered for uses that could result in
short- or intermediate-term residential
exposure, it is possible that n-butyl
benzoate could be used in such
products and the Agency has
determined that it is appropriate to
aggregate chronic exposure through food
and water with potential short- and
intermediate-term residential exposures
to n-butyl benzoate.
Using the exposure assumptions
described in this unit for short-and
intermediate-term exposures, EPA has
concluded the combined food, water,
and residential exposures result in
aggregate short- and intermediate-term
MOEs of 320 for adults and 100 for
children (1–2 years old). EPA’s level of
concern for n-butyl benzoate is a MOE
of 100 or below; however these MOEs
are not of concern based on the highly
conservative assumptions made
regarding residential and dietary
exposures to n-butyl benzoate as
described in Unit IV. Section C.
4. Aggregate cancer risk for U.S.
population. Based on data that n-butyl
benzoate is metabolized by esterase
mediated hydrolysis resulting in the
formation of two major polar
metabolites, n-butyl alcohol and benzoic
acid. Each metabolite enters other
degradation pathways to be rapidly
metabolized and/or excreted, n-butyl
benzoate is not expected to pose a
cancer risk to humans.
5. Determination of safety. Based on
these risk assessments, EPA concludes
that there is a reasonable certainty that
no harm will result to the general
population, or to infants and children
from aggregate exposure to n-butyl
benzoate residues.
V. Other Considerations
A. Analytical Enforcement Methodology
An analytical method for enforcement
purposes is not required for n-butyl
benzoate in pesticide formulations that
include uses on crops for pre- and postharvest, and on animals, since the
Agency is establishing an exemption
from the requirement of a tolerance
without any numerical limitation.
An analytical method is also not
required for enforcement purposes for nbutyl benzoate on food-contact surfaces
in antimicrobial applications since the
Agency is not establishing a numerical
tolerance for residues of n-butyl
benzoate in or on any food
commodities. EPA is establishing a
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limitation on the amount of n-butyl
benzoate that may be used in foodcontact surface antimicrobial
applications. That limitation will be
enforced through the pesticide
registration process under the Federal
Insecticide, Fungicide, and Rodenticide
Act (‘‘FIFRA’’), 7 U.S.C. 136 et seq. EPA
will not register any food-contact
surface antimicrobial applications for
sale or distribution that contains greater
than 15,000 ppm (1.5%) of n-butyl
benzoate by weight.
VI. Conclusions
Therefore, exemptions from the
requirement of a tolerance are
established under 40 CFR 180.910,
180.930, and 180.940(a) for n-butyl
benzoate (CAS Reg. No. 136–60–7)
when used as an inert ingredient
(solvent) in pesticide formulations
applied to growing crops, raw
agricultural commodities after harvest,
and animals, and when used as an inert
ingredient in antimicrobial formulations
in food-contact surface sanitizer
products at a maximum level in the enduse concentration of 15,000 parts per
million (ppm).
mstockstill on DSK4VPTVN1PROD with RULES
VII. Statutory and Executive Order
Reviews
This action establishes exemptions
from the requirement of 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). 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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18:17 Jun 04, 2015
Jkt 235001
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 exemptions 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,
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Fmt 4700
Sfmt 4700
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
Dated: May 29, 2015.
Daniel J. Rosenblatt,
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 § 180.910, add alphabetically the
inert ingredient to the table to read as
follows:
■
§ 180.910 Inert ingredients used pre- and
post-harvest; exemptions from the
requirement of a tolerance.
*
*
*
*
*
Inert ingredients
Limits
Uses
*
*
*
*
*
n-Butyl benzoate
.............. Solvent.
(CAS Reg. No.136–
60–7).
*
*
*
*
*
3. In § 180.930, add alphabetically the
inert ingredient to the table to read as
follows:
■
§ 180.930 Inert ingredients applied to
animals; exemptions from the requirement
of a tolerance.
*
*
*
*
*
Inert ingredients
Limits
Uses
*
*
*
*
*
n-Butyl benzoate
.............. Solvent.
(CAS RN 136–60–
7).
*
*
*
*
*
4. In § 180.940(a) add alphabetically
the inert ingredient to the table to read
as follows:
■
§ 180.940 Tolerance exemptions for active
and inert ingredients for use in
antimicrobial formulations (Food-contact
surface sanitizing solutions).
*
*
*
(a) * * *
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*
32034
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Pesticide chemical
CAS Reg. No.
*
*
n-Butyl benzoate .................
*
*
*
*
*
*
*
*
When ready for use, the end-use concentration is not to exceed 15,000 ppm.
*
*
136–60–7
*
*
Limits
*
*
*
number: (703) 305–7090; email address:
RDFRNotices@epa.gov.
SUPPLEMENTARY INFORMATION:
*
[FR Doc. 2015–13818 Filed 6–4–15; 8:45 am]
BILLING CODE 6560–50–P
I. General Information
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 180
[EPA–HQ–OPP–2012–0207; FRL–9927–66]
Aluminum Sulfate; Exemption From
the Requirement of a Tolerance
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This regulation establishes an
exemption from the requirement of a
tolerance for residues of aluminum
sulfate (CAS Reg. No. 10043–01–3)
under 40 CFR 180.940(a). This
regulation eliminates the need to
establish a maximum permissible level
for residues of aluminum sulfate.
DATES: This regulation is effective June
5, 2015. Objections and requests for
hearings must be received on or before
August 4, 2015, 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–2012–0207, 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:
Susan Lewis, Registration Division
(7505P), Office of Pesticide Programs,
Environmental Protection Agency, 1200
Pennsylvania Ave. NW., Washington,
DC 20460–0001; main telephone
mstockstill on DSK4VPTVN1PROD with RULES
SUMMARY:
VerDate Sep<11>2014
18:17 Jun 04, 2015
Jkt 235001
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 Publishing
Office’s e-CFR site at https://
www.ecfr.gov/cgi-bin/textidx?&c=ecfr&tpl=/ecfrbrowse/Title40/
40tab_02.tpl. To access the OCSPP test
guidelines referenced in this document
electronically, please go to https://
www.epa.gov/ocspp and select ‘‘Test
Methods and Guidelines.’’
C. How can I file an objection or hearing
request?
Under the Federal Food, Drug, and
Cosmetic Act (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–2012–0207 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 August 4, 2015. Addresses for
mail and hand delivery of objections
and hearing requests are provided in 40
CFR 178.25(b).
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Frm 00064
Fmt 4700
Sfmt 4700
*
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–
2012–0207, 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
In the Federal Register of May 2,
2012, (77 FR 25954) (FRL–9346–1), EPA
issued a document pursuant to FFDCA
section 408(d)(3), 21 U.S.C. 346a(d)(3),
announcing the filing of a pesticide
tolerance petition (PP 1E7933) by
Exponent Inc., 1150 Connecticut Ave.
NW., Suite 1100, Washington, DC
20036, on behalf of Ecolab, Inc., 370 N.
Wabasha Street, St. Paul, MN 55102.
The petition requested that 40 CFR part
180.940(a) be amended by establishing
an exemption from the requirement of a
tolerance for residues of aluminum
sulfate for use as an inert ingredient in
antimicrobial pesticide formulations
applied to food-contact surfaces in
public eating places, dairy-processing
equipment, and food-processing
equipment and utensils at a maximum
end use concentration not to exceed 50
parts per million (ppm). That document
referenced a summary of the petition
prepared by the petitioner Exponent,
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Agencies
[Federal Register Volume 80, Number 108 (Friday, June 5, 2015)]
[Rules and Regulations]
[Pages 32029-32034]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-13818]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[EPA-HQ-OPP-2014-0265; FRL-9927-65]
n-Butyl benzoate; Exemptions From the Requirement of a Tolerance
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This regulation establishes exemptions from the requirement of
a tolerance for residues of n-butyl benzoate (CAS Reg. No. 136-60-7)
when used as an inert ingredient (solvent) in pesticide formulations
applied to growing crops, raw agricultural commodities after harvest,
and animals and when used as an inert ingredient in antimicrobial
formulations in food-contact surface sanitizer products at a maximum
level in the end-use concentration of 15,000 parts per million (ppm).
Exponent, Inc., on behalf Huntsman Corp., submitted a petition to EPA
under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting
establishment of an exemption from the requirement of a tolerance. This
regulation eliminates the need to establish a maximum permissible level
for residues of n-butyl benzoate.
DATES: This regulation is effective June 5, 2015. Objections and
requests for hearings must be received on or before August 4, 2015, 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-2014-0265, 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: Susan Lewis, 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:
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 Publishing Office's e-CFR site at
https://www.ecfr.gov/cgi-bin/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl. To access the OCSPP test guidelines referenced in this
document electronically, please go to https://www.epa.gov/ocspp and
select ``Test Methods and Guidelines.''
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-2014-0265 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
August 4, 2015. 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-2014-0265, 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. Petition for Exemption
In the Federal Register of October 24, 2014 (Vol. 79 FR 63594)
(FRL-9916-03), EPA issued a document pursuant to FFDCA section 408, 21
U.S.C. 346a, announcing the filing of a pesticide petition (PP IN-
10682) by Exponent, Inc., 1150 Connecticut Ave. NW., Suite 1100,
Washington, DC 20035 on behalf Huntsman Corp., 8600 Gosling Road, The
Woodlands, TX 77381. The petition requested that 40 CFR 180.910,
180.930, and 180.940 be amended by establishing an exemption from the
requirement of a tolerance for residues of n-butyl benzoate (CAS Reg.
No. 136-60-7) when used as an inert ingredient (solvent) in pesticide
formulations applied to growing crops, raw agricultural commodities
after harvest, and animals and when used as an inert
[[Page 32030]]
ingredient in antimicrobial formulations in food-contact surface
sanitizer products. That document referenced a summary of the petition
prepared by Exponent, Inc., on behalf Huntsman Corp., the petitioner,
which is available in the docket, https://www.regulations.gov. No
tolerance-related comments were received on the notice of filing.
Based on a review of the data submitted in support of this
petition, EPA has modified the exemption requested by limiting the
amount of n-butyl benzoate allowed in food contact sanitizing solutions
to a maximum 15,000 ppm (1.5%). This limitation is based on the
Agency's risk assessment which can be found at https://www.regulations.gov in document ``n-Butyl Benzoate; Human Health Risk
Assessment and Ecological Effects Assessment to Support Proposed
Exemption from the Requirement of a Tolerance When Used as an Inert
Ingredient in Pesticide Formulations,'' in docket ID number EPA-HQ-OPP-
2014-0265.
III. Inert Ingredient Definition
Inert ingredients are all ingredients that are not active
ingredients as defined in 40 CFR 153.125 and include, but are not
limited to, the following types of ingredients (except when they have a
pesticidal efficacy of their own): Solvents such as alcohols and
hydrocarbons; surfactants such as polyoxyethylene polymers and fatty
acids; carriers such as clay and diatomaceous earth; thickeners such as
carrageenan and modified cellulose; wetting, spreading, and dispersing
agents; propellants in aerosol dispensers; microencapsulating agents;
and emulsifiers. The term ``inert'' is not intended to imply
nontoxicity; the ingredient may or may not be chemically active.
Generally, EPA has exempted inert ingredients from the requirement of a
tolerance based on the low toxicity of the individual inert
ingredients.
IV. Aggregate Risk Assessment and Determination of Safety
Section 408(c)(2)(A)(i) of FFDCA allows EPA to establish an
exemption from the requirement for a tolerance (the legal limit for a
pesticide chemical residue in or on a food) only if EPA determines that
the tolerance is ``safe.'' Section 408(b)(2)(A)(ii) of FFDCA defines
``safe'' to mean that ``there is a reasonable certainty that no harm
will result from aggregate exposure to the pesticide chemical residue,
including all anticipated dietary exposures and all other exposures for
which there is reliable information.'' This includes exposure through
drinking water and in residential settings, but does not include
occupational exposure. Section 408(b)(2)(C) of FFDCA requires EPA to
give special consideration to exposure of infants and children to the
pesticide chemical residue in establishing a tolerance and to ``ensure
that there is a reasonable certainty that no harm will result to
infants and children from aggregate exposure to the pesticide chemical
residue. . . .''
EPA establishes exemptions from the requirement of a tolerance only
in those cases where it can be clearly demonstrated that the risks from
aggregate exposure to pesticide chemical residues under reasonably
foreseeable circumstances will pose no appreciable risks to human
health. In order to determine the risks from aggregate exposure to
pesticide inert ingredients, the Agency considers the toxicity of the
inert in conjunction with possible exposure to residues of the inert
ingredient through food, drinking water, and through other exposures
that occur as a result of pesticide use in residential settings. If EPA
is able to determine that a finite tolerance is not necessary to ensure
that there is a reasonable certainty that no harm will result from
aggregate exposure to the inert ingredient, an exemption from the
requirement of a tolerance may be established.
Consistent with FFDCA section 408(c)(2)(A), and the factors
specified in FFDCA section 408(c)(2)(B), 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 n-butyl benzoate including
exposure resulting from the exemption established by this action. EPA's
assessment of exposures and risks associated with n-butyl benzoate
follows.
A. Toxicological Profile
EPA has evaluated the available toxicity data and considered their
validity, completeness, and reliability as well as the relationship of
the results of the studies to human risk. EPA has also considered
available information concerning the variability of the sensitivities
of major identifiable subgroups of consumers, including infants and
children. Specific information on the studies received and the nature
of the adverse effects caused by n-butyl benzoate as well as the no-
observed-adverse-effect-level (NOAEL) and the lowest-observed-adverse-
effect-level (LOAEL) from the toxicity studies are discussed in this
unit.
In acute oral, dermal, and inhalation toxicity studies in rats, n-
butyl benzoate was found to be slightly toxic to nontoxic. In primary
eye and dermal irritation studies in rabbits, n-butyl benzoate was
found to be minimally irritating. In a dermal sensitization study in
guinea pigs, n-butyl benzoate was not a dermal sensitizer.
In a combined repeated dose toxicity study with the reproduction/
developmental toxicity screening test, n-butyl benzoate was
administered daily to rats by gavage at doses of 0 (vehicle control),
250, 500 and 1,000 mg/kg bw/day. The NOAEL for parental toxicity was
1,000 mg/kg/day; the highest dose tested. The LOAEL for parental
toxicity was not observed in this study. The NOAEL for embryo-fetal
toxicity was 500 mg/kg bw/day based on increased pup mortality on post-
natal day zero observed at the LOAEL of 1,000 mg/kg/day.
No positive mutagenic response was observed for n-butyl benzoate in
a reverse bacterial mutation assay.
No chronic toxicity data for n-butyl benzoate are available.
There are no cancer studies available for n-butyl benzoate. n-Butyl
benzoate is metabolized by esterase mediated hydrolysis resulting in
the formation of two major polar metabolites, n-butyl alcohol and
benzoic acid. Each metabolite enters other degradation pathways to be
rapidly metabolized and/or excreted. Based on predicted rapid
metabolism and excretion, the lack of specific target organ toxicity in
the OCSPP Harmonized Test Guideline 870.3650 study, the results of
genotoxicity testing being negative, and a Quantitative Structure
Activity Relationship (QSAR) expert model, DEREK Nexus, that indicates
no structural alerts for carcinogenicity, n-butyl benzote is not
expected to be carcinogenic.
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
[[Page 32031]]
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.
1. Acute dietary (all populations). There were no adverse effects
observed attributable to a single dose for the general population
(including infants and children) or females 13-49 years of age.
2. Chronic dietary (all populations). The chronic population
adjusted dose (cPAD) of 5 mg/kg/day is established based on the NOAEL
of 500 mg/kg/day from a combined repeated dose toxicity study with the
reproduction/developmental toxicity screening test in rats. The adverse
effects seen in this study were increased pup mortality observed at the
LOAEL of 1,000 mg/kg/day. The Food Quality Protection Act (FQPA) safety
factor/database uncertainty factor of 1X and 10X intra- and
interspecies uncertainty factors are utilized for dietary risk
assessment.
3. Dermal, short- and intermediate-term. The level of concern (LOC)
for short- and intermediate-term dermal exposure is a margin of
exposure (MOE) of 100 and the assessment is based on the NOAEL (500 mg/
kg/day) from the combined repeated dose toxicity study with the
reproduction/developmental toxicity screening test in rats.
4. Inhalation, short- and intermediate term. The LOC for short- and
intermediate-term inhalation exposure is a MOE of 100 and the
assessment is based on the NOAEL (500 mg/kg/day) from the combined
repeated dose toxicity study with the reproduction/developmental
toxicity screening test in rats.
5. Quantification of cancer risk is not appropriate since there are
no concerns for cancer based on data that n-butyl benzoate is
metabolized by esterase mediated hydrolysis resulting in the formation
of two major polar metabolites, n-butyl alcohol and benzoic acid,
neither substance being a concern for cancer. In addition, there is a
lack of specific target organ toxicity in the OCSPP Harmonized Test
Guideline 870.3650 study, the results of genotoxicity testing for n-
butyl benzoate are negative, and QSAR expert model, DEREK Nexus,
indicates that there are no structural alerts for carcinogenicity. As
such, n-butyl benzote is not expected to be carcinogenic.
C. Exposure Assessment
1. Dietary exposure from food and feed uses. In evaluating dietary
exposure to n-butyl benzoate, EPA considered exposure under the
proposed exemption from the requirement of a tolerance. EPA assessed
dietary exposures from n-butyl benzoate in food as follows:
The Agency assessed the dietary exposures to n-butyl benzoate as an
inert ingredient for use in pesticide formulations applied to growing
crops, raw agricultural commodities, and livestock as well as an inert
ingredient for use in food-contact surface sanitizing solutions. In the
case of dietary exposures to n-butyl benzoate as an inert ingredient
used in pesticide formulations applied to growing crops, raw
agricultural commodities, and livestock, a chronic dietary exposure
assessment was conducted using the Dietary Exposure Evaluation Model/
Food Commodity Intake Database (DEEM-FCID)TM, Version 3.16. EPA used
food consumption information from the U.S. Department of Agriculture's
National Health and Nutrition Examination Survey, What We Eat in
America, (NHANES/WWEIA). This dietary survey was conducted from 2003 to
2008. As to residue levels in food, no residue data were submitted for
n-butyl benzoate. In the absence of specific residue data, EPA has
developed an approach that uses surrogate information to derive upper
bound exposure estimates for the subject inert ingredient. Upper bound
exposure estimates are based on the highest tolerance for a given
commodity from a list of high-use insecticides, herbicides, and
fungicides. A complete description of the general approach taken to
assess inert ingredient risks in the absence of residue data is
contained in the memorandum entitled ``Alkyl Amines Polyalkoxylates
(Cluster 4): Acute and Chronic Aggregate (Food and Drinking Water)
Dietary Exposure and Risk Assessments for the Inerts.'' (D361707, S.
Piper, 2/25/09) and can be found at https://www.regulations.gov in
docket ID number EPA-HQ-OPP-2008-0738.
In the case of the proposed use of n-butyl benzoate as an inert
ingredient in food-contact sanitizing pesticide products, EPA has
utilized a conservative, health-protective method of estimating dietary
intake that is based upon conservative assumptions related to the
amount of residues that can be transferred to foods as a result of the
proposed use. This same methodology has been utilized by FDA in
estimating dietary exposures to antimicrobial pesticides used in food-
handling settings. A complete description of the approach used to
assess dietary exposures resulting from food contact sanitizing
solution uses of n-butyl benzoate can be found at https://www.regulations.gov in document ``n-Butyl Benzoate; Human Health Risk
Assessment and Ecological Effects Assessment to Support Proposed
Exemption from the Requirement of a Tolerance When Used as an Inert
Ingredient in Pesticide Formulations,'' pp. 13-15 in docket ID number
EPA-HQ-OPP-2014-0265.
The exposures from food and food contact sanitizing are then added
together for the final dietary exposure assessment.
2. Dietary exposure from drinking water. For the purpose of the
screening level dietary risk assessment to support this request for an
exemption from the requirement of a tolerance for n-butyl benzoate, a
conservative drinking water concentration value of 100 ppb based on
screening level modeling was used to assess the contribution to
drinking water for the chronic dietary risk assessments for parent
compound. These values were directly entered into the dietary exposure
model.
3. From non-dietary exposure. The term ``residential exposure'' is
used in this document to refer to non-occupational, non-dietary
exposure (e.g., textiles (clothing and diapers), carpets, swimming
pools, and hard surface disinfection on walls, floors, tables).
There are no current or proposed residential uses for n-butyl
benzoate, however it is possible that n-butyl benzoate may be used as
an inert ingredient in pesticide products that may have uses resulting
in potential residential exposures. A complete description of the
approach used to assess possible residential exposures from n-butyl
benzoate can be found at https://www.regulations.gov in document ``n-
Butyl Benzoate; Human Health Risk Assessment and Ecological Effects
Assessment to Support Proposed Exemption from the Requirement of a
Tolerance When Used as an Inert Ingredient in Pesticide Formulations,''
pp. 16 in docket ID number EPA-HQ-OPP-2014-0265.
4. Cumulative effects from substances with a common mechanism of
toxicity.
[[Page 32032]]
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 n-butyl benzoate to share a common mechanism of
toxicity with any other substances, and n-butyl benzoate does not
appear to produce a toxic metabolite produced by other substances. For
the purposes of this tolerance action, therefore, EPA has assumed that
n-butyl benzoate 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://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 FQPA Safety
Factor (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 an evidence of
increased susceptibility of infants and children in the OECD 422 study
in rats. In this study, the NOAEL for parental toxicity was 1,000 mg/
kg/day; the highest dose tested while the NOAEL for embryo-fetal
toxicity was 500 mg/kg/day based on increased pup mortality on post-
natal day zero seen at the LOAEL of 1,000 mg/kg/day. However, the
concern for this susceptibility is low because there is clear NOAEL
established in the study protecting the offspring, and regulatory doses
were selected to be protective of these effects. No other residual
uncertainties were identified with respect to susceptibility. The
endpoints and doses selected for the dietary risk assessment of n-butyl
benzoate are protective of adverse effects in both offspring and
adults.
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 n-butyl benzoate contains acute
toxicity, subchronic toxicity, reproductive toxicity, developmental
toxicity, and genotoxicity data. No immunotoxicity or neurotoxicity
study is available; however, there was no evidence of any triggers for
immunotoxicity or neurotoxicity in the database. Therefore, there is no
need for immunotoxicity or neurotoxicity study at this time and no need
for additional uncertainty factor for the lack of those studies.
ii. Although there is evidence that n-butyl benzoate results in
increased susceptibility in the combined repeated dose toxicity study
with the reproduction/developmental toxicity screening test in rats,
that study identified a clear NOAEL for offspring effects, which the
Agency is using as the endpoint for its assessment. Therefore, the
concern for these effects is low and there is no need for an additional
uncertainty factor.
iii. There are no residual uncertainties identified in the exposure
databases. The dietary food exposure assessments were performed based
on 100% CT and tolerance-level residues, as well as conservative
assumptions for food-contact surface sanitizers. EPA made conservative
(protective) assumptions in the ground and surface water modeling used
to assess exposure to n-butyl benzoate in drinking water. These
assessments will not underestimate the exposure and risks posed by n-
butyl benzoate.
E. Aggregate Risks and Determination of Safety
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,
n-butyl benzoate is not expected to pose an acute risk.
2. Chronic risk. Using the exposure assumptions described in this
unit for chronic exposure, EPA has concluded that chronic exposure to
n-butyl benzoate from food and water will utilize 21.0% of the cPAD for
the U.S. population and 94.1% of the cPAD for children 1-2 years old,
the population group receiving the greatest exposure.
3. Short- and intermediate-term risk. Short- and intermediate-term
aggregate exposure takes into account short- and intermediate-term
residential exposure plus chronic exposure to food and water
(considered to be a background exposure level). While n-butyl benzoate
is not currently used as an inert ingredient in pesticide products that
are registered for uses that could result in short- or intermediate-
term residential exposure, it is possible that n-butyl benzoate could
be used in such products and the Agency has determined that it is
appropriate to aggregate chronic exposure through food and water with
potential short- and intermediate-term residential exposures to n-butyl
benzoate.
Using the exposure assumptions described in this unit for short-and
intermediate-term exposures, EPA has concluded the combined food,
water, and residential exposures result in aggregate short- and
intermediate-term MOEs of 320 for adults and 100 for children (1-2
years old). EPA's level of concern for n-butyl benzoate is a MOE of 100
or below; however these MOEs are not of concern based on the highly
conservative assumptions made regarding residential and dietary
exposures to n-butyl benzoate as described in Unit IV. Section C.
4. Aggregate cancer risk for U.S. population. Based on data that n-
butyl benzoate is metabolized by esterase mediated hydrolysis resulting
in the formation of two major polar metabolites, n-butyl alcohol and
benzoic acid. Each metabolite enters other degradation pathways to be
rapidly metabolized and/or excreted, n-butyl benzoate is not expected
to pose a cancer risk to humans.
5. Determination of safety. Based on these risk assessments, EPA
concludes that there is a reasonable certainty that no harm will result
to the general population, or to infants and children from aggregate
exposure to n-butyl benzoate residues.
V. Other Considerations
A. Analytical Enforcement Methodology
An analytical method for enforcement purposes is not required for
n-butyl benzoate in pesticide formulations that include uses on crops
for pre- and post-harvest, and on animals, since the Agency is
establishing an exemption from the requirement of a tolerance without
any numerical limitation.
An analytical method is also not required for enforcement purposes
for n-butyl benzoate on food-contact surfaces in antimicrobial
applications since the Agency is not establishing a numerical tolerance
for residues of n-butyl benzoate in or on any food commodities. EPA is
establishing a
[[Page 32033]]
limitation on the amount of n-butyl benzoate that may be used in food-
contact surface antimicrobial applications. That limitation will be
enforced through the pesticide registration process under the Federal
Insecticide, Fungicide, and Rodenticide Act (``FIFRA''), 7 U.S.C. 136
et seq. EPA will not register any food-contact surface antimicrobial
applications for sale or distribution that contains greater than 15,000
ppm (1.5%) of n-butyl benzoate by weight.
VI. Conclusions
Therefore, exemptions from the requirement of a tolerance are
established under 40 CFR 180.910, 180.930, and 180.940(a) for n-butyl
benzoate (CAS Reg. No. 136-60-7) when used as an inert ingredient
(solvent) in pesticide formulations applied to growing crops, raw
agricultural commodities after harvest, and animals, and when used as
an inert ingredient in antimicrobial formulations in food-contact
surface sanitizer products at a maximum level in the end-use
concentration of 15,000 parts per million (ppm).
VII. Statutory and Executive Order Reviews
This action establishes exemptions from the requirement of 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). 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
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 exemptions 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: May 29, 2015.
Daniel J. Rosenblatt,
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. 180.910, add alphabetically the inert ingredient to the
table to read as follows:
Sec. 180.910 Inert ingredients used pre- and post-harvest; exemptions
from the requirement of a tolerance.
* * * * *
------------------------------------------------------------------------
Inert ingredients Limits Uses
------------------------------------------------------------------------
* * * * *
n-Butyl benzoate (CAS Reg. No.136-60- ........ Solvent.
7).
* * * * *
------------------------------------------------------------------------
0
3. In Sec. 180.930, add alphabetically the inert ingredient to the
table to read as follows:
Sec. 180.930 Inert ingredients applied to animals; exemptions from
the requirement of a tolerance.
* * * * *
------------------------------------------------------------------------
Inert ingredients Limits Uses
------------------------------------------------------------------------
* * * * *
n-Butyl benzoate (CAS RN 136-60-7).... ........ Solvent.
* * * * *
------------------------------------------------------------------------
0
4. In Sec. 180.940(a) add alphabetically the inert ingredient to the
table to read as follows:
Sec. 180.940 Tolerance exemptions for active and inert ingredients
for use in antimicrobial formulations (Food-contact surface sanitizing
solutions).
* * * * *
(a) * * *
[[Page 32034]]
----------------------------------------------------------------------------------------------------------------
Pesticide chemical CAS Reg. No. Limits
----------------------------------------------------------------------------------------------------------------
* * * * * * *
n-Butyl benzoate.................................... 136-60-7 When ready for use, the end-use
concentration is not to exceed 15,000
ppm.
* * * * * * *
----------------------------------------------------------------------------------------------------------------
* * * * *
[FR Doc. 2015-13818 Filed 6-4-15; 8:45 am]
BILLING CODE 6560-50-P