82_FR_19073 82 FR 18995 - Benzobicyclon; Pesticide Tolerances

82 FR 18995 - Benzobicyclon; Pesticide Tolerances

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 82, Issue 78 (April 25, 2017)

Page Range18995-19001
FR Document2017-08357

This regulation establishes a tolerance for residues of benzobicyclon in or on rice, grain. Gowan Company, LLC requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA).

Federal Register, Volume 82 Issue 78 (Tuesday, April 25, 2017)
[Federal Register Volume 82, Number 78 (Tuesday, April 25, 2017)]
[Rules and Regulations]
[Pages 18995-19001]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-08357]


-----------------------------------------------------------------------

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180


[EPA-HQ-OPP-2015-0226; FRL-9961-02]

Benzobicyclon; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: This regulation establishes a tolerance for residues of 
benzobicyclon in or on rice, grain. Gowan Company,

[[Page 18996]]

LLC requested this tolerance under the Federal Food, Drug, and Cosmetic 
Act (FFDCA).

DATES: This regulation is effective April 25, 2017. Objections and 
requests for hearings must be received on or before June 26, 2017, 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-2015-0226, is available at http://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 http://www.epa.gov/dockets.

FOR FURTHER INFORMATION CONTACT: Michael Goodis, Registration Division 
(7505P), Office of Pesticide Programs, Environmental Protection Agency, 
1200 Pennsylvania Ave. NW., Washington, DC 20460-0001; main telephone 
number: (703) 305-7090; email address: [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 http://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-2015-0226 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 
June 26, 2017. 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-2015-0226, by one of 
the following methods:
     Federal eRulemaking Portal: http://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 http://www.epa.gov/dockets/contacts.html.
    Additional instructions on commenting or visiting the docket, along 
with more information about dockets generally, is available at http://www.epa.gov/dockets.

II. Summary of Petitioned-For Tolerance

    In the Federal Register of August 26, 2015 (80 FR 51759) (FRL-9931-
74), 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 
5F8343) by Gowan Company, LLC, P.O. Box 5569, Yuma, AZ 85366. The 
petition requested that 40 CFR part 180 be amended by establishing 
tolerances for residues of the herbicide benzobicyclon (3-[2-chloro-4-
(methylsulfonyl)benzoyl]-4-(phenylthio)bicyclo[3.2.1]oct-3-en-2-one), 
in or on rice, grain and rice, straw at 0.1 parts per million (ppm). 
That document referenced a summary of the petition prepared by Gowan 
Company, LLC, the registrant, which is available in the docket (EPA-HQ-
OPP-2015-0226), http://www.regulations.gov. There were no comments 
received in response to the notice of filing.
    Based upon review of the data supporting the petition, EPA is not 
establishing a tolerance for rice, straw as requested. The reason for 
this change is explained in Unit IV.C.

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 benzobicyclon including 
exposure resulting from the tolerances established by this action. 
EPA's assessment of exposures and risks associated with benzobicyclon 
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

[[Page 18997]]

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.
    Benzobicyclon has low mammalian toxicity with no effects seen in 
mice, dogs, and female rats following oral exposure or in rabbits 
following dermal exposure. There is no evidence of neurotoxicity or 
immunotoxicity. Parental effects in the reproduction toxicity study 
were only observed at the highest dose tested and consisted of 
increased incidence of hydropic degeneration (basophilic cells) in the 
pituitaries of male rats only, and was observed at an increased 
incidence for the F1 as compared to F0 
generation. There was no evidence of increased quantitative or 
qualitative fetal or offspring susceptibility in the developmental 
toxicity and two-generation reproduction toxicity studies in rats with 
no developmental, reproductive, or offspring effects observed. 
Benzobicyclon was categorized as having low acute toxicity via the 
oral, dermal, and inhalation routes of exposure. It produces minimal 
but reversible eye irritation, but is not a dermal irritant or dermal 
sensitizer. Benzobicyclon is classified as ``Not likely to be 
Carcinogenic to Humans'' based on the absence of treatment-related 
tumors in two adequate rodent carcinogenicity studies. There was no 
concern for mutagenicity.
    Benzobicyclon rapidly hydrolyzes to generate the anticipated 
pesticidal active degradate, the triketone metabolite B (also referred 
to as 1315P-070). For metabolite B, a limited amount of toxicological 
data is available. An in vitro enzyme activity assay that was submitted 
indicates that metabolite B is an inhibitor of 4-hydroxyphenylpyruvate 
dioxygenase (HPPD). In mammals, HPPD is a key enzyme in the catabolism 
of the amino acid tyrosine and inhibition of HPPD results in an 
increase of blood tyrosine concentrations (tyrosinemia). In laboratory 
animals, as a class, HPPD inhibitors produce ocular (opacities and 
keratitis), liver, kidney, and developmental (skeletal abnormalities) 
effects in rats. In a 90-day toxicity study in rats with metabolite B, 
ocular effects (neovascularization and opacity of the cornea) 
consistent with tyrosinemia were at a similar dose that elicited ocular 
effects for tembotrione, the most potent HPPD inhibitor currently 
registered. The study also demonstrated that metabolite B induces 
treatment-related effects at lower doses than those required to elicit 
effects for the parent, benzobicyclon. For metabolite B, the 
toxicological database does not contain any carcinogenicity studies. 
Some of the currently registered HPPD inhibitors have been shown to 
cause tumors; however, cancer risk estimates tend to be low for this 
class and the chronic risk assessment generally addresses this risk. A 
bacterial reverse-mutation assay with metabolite B to evaluate 
genotoxicity was found to be negative. Due to the incomplete database 
for metabolite B, studies from the tembotrione database were used for 
preliminary evaluation of risks from exposure to metabolite B, along 
with the appropriate database uncertainty factors to ensure the 
tembotrione database is protective for the proposed use pattern. Any 
expansion in the use of benzobicyclon would require additional data to 
further characterize the toxicological effects of metabolite B.
    Specific information on the studies received and the nature of the 
adverse effects caused by benzobicyclon and metabolite B as well as the 
no-observed-adverse-effect-level (NOAEL) and the lowest-observed-
adverse-effect-level (LOAEL) from the toxicity studies can be found at 
http://www.regulations.gov in document Benzobicyclon Human Health Risk 
Assessment for the Section 3 Registration Action on Rice and the 
Establishment of Permanent Tolerances for Residues in/on Rice at page 
36 in docket ID number EPA-HQ-OPP-2015-0226.

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 http://www.epa.gov/pesticides/factsheets/riskassess.htm.
    A summary of the toxicological endpoints for benzobicyclon and 
metabolite B used for human risk assessment is shown in Table 1 and 
Table 2 of this unit.

 Table 1--Summary of Toxicological Doses and Endpoints for Benzobicyclon for Use in Human Health Risk Assessment
----------------------------------------------------------------------------------------------------------------
                                     Point of departure and
         Exposure/scenario             uncertainty/safety    RfD, PAD, LOC for risk    Study and toxicological
                                             factors               assessment                  effects
----------------------------------------------------------------------------------------------------------------
Acute dietary (All populations)....  No appropriate toxicological effect attributable to a single dose was
                                      observed. Therefore, a dose and endpoint were not identified for this risk
                                      assessment.
                                    ----------------------------------------------------------------------------
Chronic dietary (All populations)..  NOAEL = 63.6 mg/kg/day  Chronic RfD = 0.636 mg/ Two-Generation Reproduction
                                     UFA = 10x.............   kg/day.                 Toxicity Study (rat).
                                     UFH = 10x.............  ......................  LOAEL = 1,320 mg/kg/day
                                     FQPA SF = 1x..........  cPAD = 0.636 mg/kg/day   based on increased
                                                                                      incidence of hydropic
                                                                                      degeneration (basophilic
                                                                                      cells) in the pituitary.
Incidental oral Short-term (1 to 30  NOAEL = 63.6 mg/kg/day  Residential LOC for     Two-Generation Reproduction
 days) and Intermediate-Term (1-6    UFA = 10x.............   MOE <100.               Toxicity Study (rat).
 months).                            UFH = 10x.............                          LOAEL = 1,320 mg/kg/day
                                     FQPA SF = 1x..........                           based on increased
                                                                                      incidence of hydropic
                                                                                      degeneration (basophilic
                                                                                      cells) in the pituitary.
                                    ----------------------------------------------------------------------------

[[Page 18998]]

 
Dermal Short-term (1 to 30 days)     No hazard was identified for dermal exposure based on a dermal toxicity
 and Intermediate-Term (1-6 months).  study and there was no evidence of increased quantitative susceptibility;
                                      therefore, a quantitative dermal assessment is not needed.
                                    ----------------------------------------------------------------------------
Inhalation Short-term (1 to 30       Oral NOAEL = 63.6 mg/   Residential LOC for     Two-Generation Reproduction
 days) and Intermediate Term (1-6     kg/day.                 MOE = <100.             Toxicity Study (rat).
 months).                            UFA = 10x.............                          LOAEL = 1,320 mg/kg/day
                                     UFH = 10x.............                           based on increased
                                     FQPA SF = 1x..........                           incidence of hydropic
                                                                                      degeneration (basophilic
                                                                                      cells) in the pituitary.
                                    ----------------------------------------------------------------------------
Cancer (Oral, dermal, inhalation)..  Classification: ``Not likely to be Carcinogenic to Humans: based on the
                                      absence of treatment-related tumors in two adequate rodent carcinogenicity
                                      studies.
----------------------------------------------------------------------------------------------------------------
LOAEL = lowest-observed-adverse-effect-level. LOC = level of concern. mg/kg/day = milligram/kilogram/day. MOE =
  margin of exposure. NOAEL = no-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
  (c = chronic). RfD = reference dose.


 Table 2--Summary of Toxicological Doses and Endpoints for Metabolite B for Use in Human Health Risk Assessment
----------------------------------------------------------------------------------------------------------------
                                     Point of departure and
         Exposure/scenario             uncertainty/safety    RfD, PAD, LOC for risk    Study and toxicological
                                             factors               assessment                  effects
----------------------------------------------------------------------------------------------------------------
Acute Dietary (All Populations)....  LOAEL = 0.8 mg/kg/day.  Acute RfD = 0.00027 mg/ Developmental Neurotoxicity
                                     UFA = 10x.............   kg/day.                 Study for Tembotrione.
                                     UFH = 10x.............  ......................  Offspring NOAEL was not
                                     FQPA SF = 30x \1\.....  aPAD = 0.00027 mg/kg/    established. Offspring
                                                              day.                    LOAEL = 0.8 mg/kg/day
                                                                                      based on decreased
                                                                                      acoustic startle response
                                                                                      on PND 60 (males), and
                                                                                      brain morphometric changes
                                                                                      on PND 75 (males and
                                                                                      females).
Chronic dietary (All populations)..  NOAEL = 0.04 mg/kg/day  Chronic RfD = 0.00004   Chronic/Carcinogenicity
                                     UFA = 10x.............   mg/kg/day.              Study (rat) for
                                     UFH = 10x.............  ......................   Tembotrione.
                                     FQPA SF = 10x \2\.....  cPAD = 0.00004 mg/kg/   LOAEL = 0.79 mg/kg/day
                                                              day.                    based on
                                                                                      neovascularization and
                                                                                      edema of the cornea and
                                                                                      snow flake-like corneal
                                                                                      opacity, unilateral or
                                                                                      bilateral keratitis of the
                                                                                      eye, decreased mean body
                                                                                      weight and mean bodyweight
                                                                                      gain, increased total
                                                                                      cholesterol, higher ketone
                                                                                      levels and lower pH
                                                                                      values, higher protein
                                                                                      levels, increased kidney
                                                                                      weight, kidney to body
                                                                                      weight and kidney to brain
                                                                                      weight ratios, chronic
                                                                                      nephropathy and atrophy of
                                                                                      the sciatic nerve.
----------------------------------------------------------------------------------------------------------------
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 = FQPA Safety Factor. PAD = population-adjusted dose
  (a = acute, c = chronic). RfD = reference dose. PND = Postnatal Day
\1\ The FQPA SF accounts for the database uncertainty factor and the extrapolation of a LOAEL to NOAEL.
\2\ The FQPA SF accounts for the database uncertainty factor.

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to benzobicyclon (parent), EPA considered exposure under the 
petitioned-for tolerances. For metabolite B, there is no anticipated 
exposure in food; metabolite B is only a residue of concern in drinking 
water. EPA assessed dietary exposures from benzobicyclon in food as 
follows:
    i. Acute exposure. Quantitative acute dietary exposure and risk 
assessments are performed for a food-use pesticide, if a toxicological 
study has indicated the possibility of an effect of concern occurring 
as a result of a 1-day or single exposure. No such effects were 
identified in the toxicological studies for benzobicyclon; therefore, a 
quantitative acute dietary exposure assessment is unnecessary.
    ii. Chronic exposure. In conducting the chronic dietary exposure 
assessment EPA used the food consumption data from the USDA's 2003-2008 
food consumption data from the U.S. Department of Agriculture's 
(USDA's) National Health and Nutrition Examination Survey, What We Eat 
in America, (NHANES/WWEIA). As for residue levels of parent 
benzobicyclon in food, EPA incorporated tolerance-level residues and 
100 percent crop treated (PCT) for rice. For metabolite B, there is no 
anticipated exposure in food; metabolite B is only a residue of concern 
in drinking water therefore chronic dietary exposure was considered for 
metabolite B separately.
    iii. Cancer. Based on the data summarized in Unit III.A., EPA has 
concluded that benzobicyclon does not pose a cancer risk to humans. 
Therefore, a dietary exposure assessment for the purpose of assessing 
cancer risk is unnecessary.
    iv. Anticipated residue and percent crop treated (PCT) information. 
EPA did not use anticipated residue and/or PCT information in the 
dietary assessment for parent benzobicyclon so tolerance level residues 
and 100% CT were assumed resulting in risk estimates that were less 
than the LOC to EPA. For metabolite B, there is no anticipated exposure 
in food; metabolite B is only a residue of concern in drinking water. 
Because risk estimates for metabolite B in drinking water exceeded the 
EPA's

[[Page 18999]]

LOC, a refined water exposure assessment was conducted which included a 
10% CT assumption, which is described in detail in the following 
section.
    2. Dietary exposure from drinking water. The Agency used refined 
water exposure models in the dietary exposure analysis and risk 
assessment for benzobicyclon and metabolite B in drinking water. These 
simulation models take into account data on the physical, chemical, and 
fate/transport characteristics of benzobicyclon and metabolite B. 
Further information regarding EPA drinking water models used in 
pesticide exposure assessment can be found at http://www.epa.gov/oppefed1/models/water/index.htm.
    Modeled estimates of drinking water concentrations based on the 
Pesticide in Flooded Applications Model (PFAM; v2.0) were directly 
entered into the dietary exposure model. Because no toxicological 
effect attributable to a single dose was observed for benzobicyclon, an 
acute exposure assessment was not done. Therefore, the acute dietary 
risk assessment was conducted for metabolite B only (the parent 
benzobicylon rapidly hydrolyzes to metabolite B) using the water 
concentration value of 24.8 ppb to assess the metabolite B contribution 
to drinking water. For chronic dietary risk assessment, the water 
concentration of value 0.0031 ppb was used to assess the contribution 
to drinking water for benzobicyclon and 3.0 ppb for metabolite B. Based 
on the data summarized in Unit III.A., EPA has concluded dietary cancer 
risk concerns due to long-term consumption of metabolite B residues are 
adequately addressed by the chronic exposure analysis using the cPAD. 
Therefore, a dietary exposure assessment for the purpose of assessing 
cancer risk is unnecessary.
    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). Benzobicyclon is not 
registered for any specific use patterns that would result in 
residential exposure.
    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 benzobicyclon to share a common mechanism of 
toxicity with any other substances, and benzobicyclon does not appear 
to produce a toxic metabolite produced by other substances. For the 
purposes of this tolerance action, therefore, EPA has assumed that 
benzobicyclon 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/pesticide-science-and-assessing-pesticide-risks/cumulative-assessment-risk-pesticides.

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. For benzobicyclon, there was 
no evidence of increased quantitative or qualitative fetal or offspring 
susceptibility in the developmental toxicity and two-generation 
reproduction toxicity studies in rats with no developmental, 
reproductive, or offspring effects observed. For metabolite B, there 
are no available toxicity data to evaluate offspring sensitivity; 
however, toxicological data are available from other HPPD inhibitors, 
including developmental toxicity studies in rats and rabbits, two-
generation reproduction studies in rats, and developmental 
neurotoxicity studies in rats. All of the selected endpoints for risk 
assessment were protective of developmental and offspring effects and 
tembotrione provided the most sensitive endpoint.
    3. Conclusion. For metabolite B, the database in incomplete. 
Nevertheless, sufficient data are available to confirm that metabolite 
B is an HPPD inhibitor, which supports utilization of data from 
tembotrione, the most potent HPPD inhibitor. To account for the lack of 
data, the acute dietary assessment applies a 30X FQPA SF to account for 
extrapolation of a LOAEL to NOAEL and the database uncertainty factor 
for lack of studies. This safety factor is considered sufficient given 
the LOAEL in the developmental neurotoxicity study for tembotrione is 
considered conservative given the minimal changes seen at that dose. 
The chronic dietary assessment applies a 10X FQPA SF to account for the 
database uncertainty factor for lack of studies. These safety factors 
will adequately account for any potential prenatal and postnatal 
toxicity and address any residual uncertainty concerning the toxicity 
database. The Agency's assessment of exposure to metabolite B was 
conducted for drinking water only, as there is no anticipated exposure 
in food. The modeled drinking water concentrations for metabolite B are 
based on conservative modeled estimates.
    For benzobicyclon, 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 SF. That decision is based on the following 
findings:
    i. The toxicity database for benzobicyclon is complete.
    ii. There is no indication that benzobicyclon is a neurotoxic 
chemical and there is no need for a developmental neurotoxicity study 
or additional UFs to account for neurotoxicity.
    iii. There is no evidence that benzobicyclon results in increased 
susceptibility in in utero rats or rabbits in the prenatal 
developmental studies or in young rats in the 2-generation reproduction 
study
    iv. There are no residual uncertainties identified in the exposure 
databases. The dietary food exposure assessments for parent 
benzobicyclon were performed based on 100% CT and tolerance-level 
residues. For metabolite B, there is no anticipated exposure in food; 
metabolite B is only a residue of concern in drinking water. Because 
risk estimates for metabolite B in drinking water exceeded the EPA's 
LOC, a refined water exposure assessment was conducted which includes a 
10% CT assumption. EPA made conservative (protective) assumptions in 
the ground and surface water modeling used to assess exposure to 
benzobicyclon and metabolite B in drinking water. These assessments 
will not underestimate the exposure and risks posed by benzobicyclon or 
metabolite B.

[[Page 19000]]

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. For metabolite B, the dietary exposure analyses 
included drinking water only and there are no uses that would result in 
residential exposure; therefore, an aggregate assessment was only 
necessary for the parent, benzobicyclon.
    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, 
benzobicyclon 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 
benzobicyclon from food and water will result in risks of <1% of the 
cPAD for all populations. There are no residential uses for 
benzobicyclon.
    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). A short-term 
adverse effect was identified; however, benzobicyclon is not registered 
for any use patterns that would result in short-term residential 
exposure. Short-term risk is assessed based on short-term residential 
exposure plus chronic dietary exposure. Because there is no short-term 
residential exposure and chronic dietary exposure has already been 
assessed and is appropriately protective cPAD (which is at least as 
protective as the POD used to assess short-term risk); no further 
assessment of short-term risk is necessary.
    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, 
benzobicyclon 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 
benzobicyclon.
    5. Aggregate cancer risk for U.S. population. Based on the lack of 
evidence of carcinogenicity, benzobicyclon is not expected to pose a 
cancer risk to humans. Dietary cancer risk concerns due to long-term 
consumption of metabolite B residues are adequately addressed by the 
chronic exposure analysis using the cPAD.
    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 benzobicyclon residues.

IV. Other Considerations

A. Analytical Enforcement Methodology

    Adequate enforcement methodology (a liquid chromatography-tandem 
mass spectrometry (LC-MS/MS) method is available to enforce the 
tolerance expression.

B. International Residue Limits

    In making its tolerance decisions, EPA seeks to harmonize U.S. 
tolerances with international standards whenever possible, consistent 
with U.S. food safety standards and agricultural practices. EPA 
considers the international maximum residue limits (MRLs) established 
by the Codex Alimentarius Commission (Codex), as required by FFDCA 
section 408(b)(4). The Codex Alimentarius is a joint United Nations 
Food and Agriculture Organization/World Health Organization food 
standards program, and it is recognized as an international food safety 
standards-setting organization in trade agreements to which the United 
States is a party. EPA may establish a tolerance that is different from 
a Codex MRL; however, FFDCA section 408(b)(4) requires that EPA explain 
the reasons for departing from the Codex level. The Codex has not 
established a MRL for benzobicyclon in or on the commodities associated 
with this rule.

C. Revisions to Petitioned-For Tolerances

    The petitioner requested a tolerance of 0.01 ppm for rice, straw 
and rice, grain. However, based on OCSPP 860 Guidelines, Table 1 
Feedstuffs, rice straw is not a regulated food commodity. Therefore, a 
tolerance for rice, straw is not needed.
    The registrant has proposed use only in California, and has 
provided residue data for only California. The available residue data 
for the establishment of a tolerance level for residues of 
benzobicyclon support a value of 0.01 ppm in rice, grain.

V. Conclusion

    Therefore, a tolerance associated with a regional registration in 
California is established for residues of benzobicyclon, in or on rice, 
grain at 0.01 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). 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 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

[[Page 19001]]

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 5, 2017,
Michael Goodis,
Director, Registration Division, Office of Pesticide Programs.

    Therefore, 40 CFR chapter I is amended as follows:

PART 180--[AMENDED]

0
1. The authority citation for part 180 continues to read as follows:

    Authority:  21 U.S.C. 321(q), 346a and 371.

0
2. Add Sec.  180.693 to subpart C to read as follows:


Sec.  [emsp14]180.693  Benzobicyclon; tolerances for residues.

    (a) General. [Reserved]
    (b) Section 18 emergency exemptions. [Reserved]
    (c) Tolerances with regional registrations. Tolerances with 
regional registration, as defined in Sec.  [emsp14]180.1(l), are 
established for residues of the herbicide benzobicyclon, including its 
metabolites and degradates, in or on the commodity in the table below. 
Compliance with the tolerance levels specified below is to be 
determined by measuring only benzobicyclon, 3-[2-chloro-4-
(methylsulfonyl)benzoyl]-4-(phenylthio)bicyclo-[3.2.1]oct-3-en-2-one), 
in or on the following raw agricultural commodities:

------------------------------------------------------------------------
                                                            Parts per
                       Commodity                             million
------------------------------------------------------------------------
Rice, grain............................................            0.01
------------------------------------------------------------------------

    (d) Indirect or inadvertent residues. [Reserved]

[FR Doc. 2017-08357 Filed 4-24-17; 8:45 am]
 BILLING CODE 6560-50-P



                                                                      Federal Register / Vol. 82, No. 78 / Tuesday, April 25, 2017 / Rules and Regulations                                              18995

                                                  A reasonable fee may be charged for                     and 2, and Independence Units 1 and 2.                timeframes set out in the final FIP. The
                                                  copies.                                                 Further, based on statements by Entergy               EPA intends to propose a future
                                                  FOR FURTHER INFORMATION CONTACT:
                                                                                                          regarding the limited future operations               rulemaking to extend the deadlines to
                                                  Barbara Nann, (214) 665–2157;                           of White Bluff, the EPA also determined               account for the period of the stay or to
                                                  nann.barbara@epa.gov.                                   to grant reconsideration of the SO2                   account for another alternative proposal.
                                                                                                          emission limits for Units 1 and 2 at the
                                                  SUPPLEMENTARY INFORMATION:                                                                                    List of Subjects in 40 CFR Part 52
                                                                                                          facility. We granted reconsideration of
                                                  I. Background                                           these provisions of the FIP because the                  Environmental protection, Air
                                                                                                          grounds for Petitioners’ objections arose             pollution control, Best available retrofit
                                                     On September 27, 2016 (81 FR 66332),                 after the close of the comment period                 technology, Incorporation by reference,
                                                  EPA (‘‘we’’) published a rule titled                    and are of central relevance to the                   Intergovernmental relations, Interstate
                                                  ‘‘Promulgation of Air Quality                           outcome of the final rule pursuant to                 transport of pollution, Nitrogen dioxide,
                                                  Implementation Plans; State of                          Clean Air Act section 307(d)(7)(B). The               Ozone, Particulate matter, Regional
                                                  Arkansas; Regional Haze and Interstate                  EPA did not specifically request                      haze, Reporting and recordkeeping
                                                  Visibility Transport Federal                            comment on the 18-month compliance                    requirements, Sulfur dioxides,
                                                  Implementation Plan’’ (Arkansas                         dates for NOX controls in the FIP, and                Visibility.
                                                  Regional Haze FIP or FIP) addressing                    reconsideration will allow for additional               Dated: April 17, 2017.
                                                  certain requirements of the Regional                    public comment on these issues. In
                                                  Haze Rule at 40 CFR 51.308 and the                                                                            E. Scott Pruitt,
                                                                                                          addition, new information clarified the               Administrator.
                                                  CAA regarding interference with other                   intent of Entergy’s comments regarding
                                                  states’ programs for visibility protection                                                                      Title 40, chapter I, of the Code of
                                                                                                          future operations at White Bluff and
                                                  (interstate visibility transport) triggered                                                                   Federal Regulations is amended as
                                                                                                          indicated that reconsideration of the
                                                  by the issuance of the 1997 ozone                                                                             follows:
                                                                                                          SO2 best available retrofit technology
                                                  National Ambient Air Quality Standards                  (BART) emission limits based on a                     PART 52—APPROVAL AND
                                                  (NAAQS) and the 1997 fine particulate                   shorter remaining useful life is                      PROMULGATION OF
                                                  matter (PM2.5) NAAQS.1                                  warranted. Finally, as we are                         IMPLEMENTATION PLANS
                                                     The Arkansas Department of                           reconsidering the compliance dates for
                                                  Environmental Quality (ADEQ)                            the NOX emission limits at                            ■ 1. The authority citation for part 52
                                                  submitted a petition to the EPA dated                   Independence, we are also                             continues to read as follows:
                                                  November 22, 2016, seeking                              reconsidering the compliance dates for                    Authority: 42 U.S.C. 7401 et seq.
                                                  reconsideration and an administrative                   the SO2 emission limits for
                                                  stay of specific portions of the final                  Independence Units 1 and 2 to ensure                  Subpart E—Arkansas
                                                  Arkansas Regional Haze FIP pursuant to                  that the schedule for compliance for
                                                  section 307(d)(7)(B) of the CAA and                     these emission limits is coordinated.                 ■ 2. Amend § 52.173 by adding
                                                  section 705 of the Administrative                       The EPA did not take action on the                    paragraph (e) to read as follows:
                                                  Procedure Act (APA). Similar petitions                  remaining issues in the petitions for
                                                  were submitted by Entergy Arkansas                                                                            § 52.173    Visibility protection.
                                                                                                          reconsideration of the Arkansas FIP. A
                                                  Inc., Entergy Mississippi Inc., and                     copy of this letter is included in the                *      *    *     *     *
                                                  Entergy Power LLC (collectively                         docket, Docket ID No. EPA–R06–OAR–                       (e) Paragraphs (c)(7) and (25) of this
                                                  Entergy) and the Arkansas Electric                      2015–0189.                                            section relating to the compliance dates
                                                  Cooperative Corporation (AECC),                            We will prepare a notice of proposed               for the NOX emission limits for Flint
                                                  owners of Flint Creek, White Bluff, and                 rulemaking that will provide ADEQ,                    Creek Unit 1, White Bluff Units 1 and
                                                  Independence facilities and the Energy                  Entergy, AECC, EEAA and the public an                 2, and Independence Units 1 and 2, as
                                                  Environmental Alliance of Arkansas                      opportunity to comment on the issues                  well as the compliance dates for the SO2
                                                  (EEAA). Under section 307(d)(7)(B) of                   identified above as well as any other                 emission limits for White Bluff Units 1
                                                  the CAA, the Administrator shall                        matter we believe will benefit from                   and 2 and Independence Units 1 and 2,
                                                  commence a reconsideration proceeding                   additional comment.                                   are stayed from April 25, 2017 until July
                                                  if, in the Administrator’s judgment, the                                                                      24, 2017, when the stay will
                                                                                                          II. Partial Stay of Certain Provisions of             automatically terminate.
                                                  petitioner raises an objection to a rule                the FIP
                                                  that was impracticable to raise during                                                                        [FR Doc. 2017–08253 Filed 4–24–17; 8:45 am]
                                                  the comment period or if the grounds                       The EPA hereby issues a 90 day stay                BILLING CODE 6560–50–P
                                                  for the objection arose after the                       from April 25, 2017 of the effectiveness
                                                  comment period but within the period                    of 40 CFR 52.173(c)(7) and (25) with
                                                  for judicial review. In either case, the                regards to the compliance dates for the               ENVIRONMENTAL PROTECTION
                                                  Administrator must also conclude that                   NOX emission limits for Flint Creek                   AGENCY
                                                  the objection is of central relevance to                Unit 1, White Bluff Units 1 and 2, and
                                                  the outcome of the rule. The                            Independence Units 1 and 2, and the                   40 CFR Part 180
                                                  Administrator may stay the                              compliance dates for the SO2 emission
                                                                                                          limits for White Bluff Units 1 and 2 and              [EPA–HQ–OPP–2015–0226; FRL–9961–
                                                  effectiveness of the rule for up to 90                                                                        02]
                                                  days during such reconsideration.                       Independence Units 1 and 2. We are
                                                     In a letter dated April 14, 2017, EPA                amending the Code of Federal
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                                                                          Regulations to reflect this stay. This stay           Benzobicyclon; Pesticide Tolerances
                                                  announced the convening of a
                                                  proceeding for reconsideration under                    does not apply to any other provisions                AGENCY:  Environmental Protection
                                                  section 307(d)(7)(B) of the compliance                  of the rule. If the EPA is unable to                  Agency (EPA).
                                                  dates for the NOX emission limits for                   complete final action on reconsideration              ACTION: Final rule.
                                                  Flint Creek Unit 1, White Bluff Units 1                 prior to the conclusion of this stay, we
                                                                                                          will consider granting a further stay of              SUMMARY:   This regulation establishes a
                                                    1 81FR 66332; see also 81 FR 68319 (October 4,        the rule. This stay, however, does not                tolerance for residues of benzobicyclon
                                                  2016) (correction).                                     alter or extend the ultimate compliance               in or on rice, grain. Gowan Company,


                                             VerDate Sep<11>2014   16:35 Apr 24, 2017   Jkt 241001   PO 00000   Frm 00021   Fmt 4700   Sfmt 4700   E:\FR\FM\25APR1.SGM   25APR1


                                                  18996               Federal Register / Vol. 82, No. 78 / Tuesday, April 25, 2017 / Rules and Regulations

                                                  LLC requested this tolerance under the                  the Government Printing Office’s e-CFR                pesticide petition (PP 5F8343) by
                                                  Federal Food, Drug, and Cosmetic Act                    site at http://www.ecfr.gov/cgi-bin/text-             Gowan Company, LLC, P.O. Box 5569,
                                                  (FFDCA).                                                idx?&c=ecfr&tpl=/ecfrbrowse/Title40/                  Yuma, AZ 85366. The petition
                                                  DATES:  This regulation is effective April              40tab_02.tpl.                                         requested that 40 CFR part 180 be
                                                  25, 2017. Objections and requests for                                                                         amended by establishing tolerances for
                                                                                                          C. How can I file an objection or hearing
                                                  hearings must be received on or before                                                                        residues of the herbicide benzobicyclon
                                                                                                          request?
                                                  June 26, 2017, and must be filed in                                                                           (3-[2-chloro-4-(methylsulfonyl)benzoyl]-
                                                                                                            Under FFDCA section 408(g), 21                      4-(phenylthio)bicyclo[3.2.1]oct-3-en-2-
                                                  accordance with the instructions                        U.S.C. 346a, any person may file an                   one), in or on rice, grain and rice, straw
                                                  provided in 40 CFR part 178 (see also                   objection to any aspect of this regulation            at 0.1 parts per million (ppm). That
                                                  Unit I.C. of the SUPPLEMENTARY                          and may also request a hearing on those               document referenced a summary of the
                                                  INFORMATION).
                                                                                                          objections. You must file your objection              petition prepared by Gowan Company,
                                                  ADDRESSES:    The docket for this action,               or request a hearing on this regulation               LLC, the registrant, which is available in
                                                  identified by docket identification (ID)                in accordance with the instructions                   the docket (EPA–HQ–OPP–2015–0226),
                                                  number EPA–HQ–OPP–2015–0226, is                         provided in 40 CFR part 178. To ensure                http://www.regulations.gov. There were
                                                  available at http://www.regulations.gov                 proper receipt by EPA, you must                       no comments received in response to
                                                  or at the Office of Pesticide Programs                  identify docket ID number EPA–HQ–                     the notice of filing.
                                                  Regulatory Public Docket (OPP Docket)                   OPP–2015–0226 in the subject line on                     Based upon review of the data
                                                  in the Environmental Protection Agency                  the first page of your submission. All                supporting the petition, EPA is not
                                                  Docket Center (EPA/DC), West William                    objections and requests for a hearing                 establishing a tolerance for rice, straw as
                                                  Jefferson Clinton Bldg., Rm. 3334, 1301                 must be in writing, and must be                       requested. The reason for this change is
                                                  Constitution Ave. NW., Washington, DC                   received by the Hearing Clerk on or                   explained in Unit IV.C.
                                                  20460–0001. The Public Reading Room                     before June 26, 2017. Addresses for mail              III. Aggregate Risk Assessment and
                                                  is open from 8:30 a.m. to 4:30 p.m.,                    and hand delivery of objections and                   Determination of Safety
                                                  Monday through Friday, excluding legal                  hearing requests are provided in 40 CFR
                                                  holidays. The telephone number for the                  178.25(b).                                               Section 408(b)(2)(A)(i) of FFDCA
                                                  Public Reading Room is (202) 566–1744,                    In addition to filing an objection or               allows EPA to establish a tolerance (the
                                                  and the telephone number for the OPP                    hearing request with the Hearing Clerk                legal limit for a pesticide chemical
                                                  Docket is (703) 305–5805. Please review                 as described in 40 CFR part 178, please               residue in or on a food) only if EPA
                                                  the visitor instructions and additional                 submit a copy of the filing (excluding                determines that the tolerance is ‘‘safe.’’
                                                  information about the docket available                  any Confidential Business Information                 Section 408(b)(2)(A)(ii) of FFDCA
                                                  at http://www.epa.gov/dockets.                          (CBI)) for inclusion in the public docket.            defines ‘‘safe’’ to mean that ‘‘there is a
                                                  FOR FURTHER INFORMATION CONTACT:                        Information not marked confidential                   reasonable certainty that no harm will
                                                  Michael Goodis, Registration Division                   pursuant to 40 CFR part 2 may be                      result from aggregate exposure to the
                                                  (7505P), Office of Pesticide Programs,                  disclosed publicly by EPA without prior               pesticide chemical residue, including
                                                  Environmental Protection Agency, 1200                   notice. Submit the non-CBI copy of your               all anticipated dietary exposures and all
                                                  Pennsylvania Ave. NW., Washington,                      objection or hearing request, identified              other exposures for which there is
                                                  DC 20460–0001; main telephone                           by docket ID number EPA–HQ–OPP–                       reliable information.’’ This includes
                                                  number: (703) 305–7090; email address:                  2015–0226, by one of the following                    exposure through drinking water and in
                                                  RDFRNotices@epa.gov.                                    methods:                                              residential settings, but does not include
                                                  SUPPLEMENTARY INFORMATION:
                                                                                                            • Federal eRulemaking Portal: http://               occupational exposure. Section
                                                                                                          www.regulations.gov. Follow the online                408(b)(2)(C) of FFDCA requires EPA to
                                                  I. General Information                                  instructions for submitting comments.                 give special consideration to exposure
                                                                                                          Do not submit electronically any                      of infants and children to the pesticide
                                                  A. Does this action apply to me?                                                                              chemical residue in establishing a
                                                                                                          information you consider to be CBI or
                                                     You may be potentially affected by                   other information whose disclosure is                 tolerance and to ‘‘ensure that there is a
                                                  this action if you are an agricultural                  restricted by statute.                                reasonable certainty that no harm will
                                                  producer, food manufacturer, or                           • Mail: OPP Docket, Environmental                   result to infants and children from
                                                  pesticide manufacturer. The following                   Protection Agency Docket Center (EPA/                 aggregate exposure to the pesticide
                                                  list of North American Industrial                       DC), (28221T), 1200 Pennsylvania Ave.                 chemical residue . . . .’’
                                                  Classification System (NAICS) codes is                  NW., Washington, DC 20460–0001.                          Consistent with FFDCA section
                                                  not intended to be exhaustive, but rather                 • Hand Delivery: To make special                    408(b)(2)(D), and the factors specified in
                                                  provides a guide to help readers                        arrangements for hand delivery or                     FFDCA section 408(b)(2)(D), EPA has
                                                  determine whether this document                         delivery of boxed information, please                 reviewed the available scientific data
                                                  applies to them. Potentially affected                   follow the instructions at http://                    and other relevant information in
                                                  entities may include:                                   www.epa.gov/dockets/contacts.html.                    support of this action. EPA has
                                                     • Crop production (NAICS code 111).                    Additional instructions on                          sufficient data to assess the hazards of
                                                     • Animal production (NAICS code                      commenting or visiting the docket,                    and to make a determination on
                                                  112).                                                   along with more information about                     aggregate exposure for benzobicyclon
                                                     • Food manufacturing (NAICS code                     dockets generally, is available at http://            including exposure resulting from the
                                                  311).                                                   www.epa.gov/dockets.                                  tolerances established by this action.
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                     • Pesticide manufacturing (NAICS                                                                           EPA’s assessment of exposures and risks
                                                                                                          II. Summary of Petitioned-For
                                                  code 32532).                                                                                                  associated with benzobicyclon follows.
                                                                                                          Tolerance
                                                  B. How can I get electronic access to                      In the Federal Register of August 26,              A. Toxicological Profile
                                                  other related information?                              2015 (80 FR 51759) (FRL–9931–74),                       EPA has evaluated the available
                                                    You may access a frequently updated                   EPA issued a document pursuant to                     toxicity data and considered its validity,
                                                  electronic version of EPA’s tolerance                   FFDCA section 408(d)(3), 21 U.S.C.                    completeness, and reliability as well as
                                                  regulations at 40 CFR part 180 through                  346a(d)(3), announcing the filing of a                the relationship of the results of the


                                             VerDate Sep<11>2014   16:35 Apr 24, 2017   Jkt 241001   PO 00000   Frm 00022   Fmt 4700   Sfmt 4700   E:\FR\FM\25APR1.SGM   25APR1


                                                                      Federal Register / Vol. 82, No. 78 / Tuesday, April 25, 2017 / Rules and Regulations                                              18997

                                                  studies to human risk. EPA has also                      enzyme in the catabolism of the amino                 in document Benzobicyclon Human
                                                  considered available information                         acid tyrosine and inhibition of HPPD                  Health Risk Assessment for the Section
                                                  concerning the variability of the                        results in an increase of blood tyrosine              3 Registration Action on Rice and the
                                                  sensitivities of major identifiable                      concentrations (tyrosinemia). In                      Establishment of Permanent Tolerances
                                                  subgroups of consumers, including                        laboratory animals, as a class, HPPD                  for Residues in/on Rice at page 36 in
                                                  infants and children.                                    inhibitors produce ocular (opacities and              docket ID number EPA–HQ–OPP–2015–
                                                     Benzobicyclon has low mammalian                       keratitis), liver, kidney, and                        0226.
                                                  toxicity with no effects seen in mice,                   developmental (skeletal abnormalities)
                                                                                                                                                                 B. Toxicological Points of Departure/
                                                  dogs, and female rats following oral                     effects in rats. In a 90-day toxicity study
                                                                                                                                                                 Levels of Concern
                                                  exposure or in rabbits following dermal                  in rats with metabolite B, ocular effects
                                                  exposure. There is no evidence of                        (neovascularization and opacity of the                   Once a pesticide’s toxicological
                                                  neurotoxicity or immunotoxicity.                         cornea) consistent with tyrosinemia                   profile is determined, EPA identifies
                                                  Parental effects in the reproduction                     were at a similar dose that elicited                  toxicological points of departure (POD)
                                                  toxicity study were only observed at the                 ocular effects for tembotrione, the most              and levels of concern to use in
                                                  highest dose tested and consisted of                     potent HPPD inhibitor currently                       evaluating the risk posed by human
                                                  increased incidence of hydropic                          registered. The study also demonstrated               exposure to the pesticide. For hazards
                                                  degeneration (basophilic cells) in the                   that metabolite B induces treatment-                  that have a threshold below which there
                                                  pituitaries of male rats only, and was                   related effects at lower doses than those             is no appreciable risk, the toxicological
                                                  observed at an increased incidence for                   required to elicit effects for the parent,            POD is used as the basis for derivation
                                                  the F1 as compared to F0 generation.                     benzobicyclon. For metabolite B, the                  of reference values for risk assessment.
                                                  There was no evidence of increased                       toxicological database does not contain               PODs are developed based on a careful
                                                  quantitative or qualitative fetal or                     any carcinogenicity studies. Some of the              analysis of the doses in each
                                                  offspring susceptibility in the                          currently registered HPPD inhibitors                  toxicological study to determine the
                                                  developmental toxicity and two-                          have been shown to cause tumors;                      dose at which no adverse effects are
                                                  generation reproduction toxicity studies                 however, cancer risk estimates tend to                observed (the NOAEL) and the lowest
                                                  in rats with no developmental,                           be low for this class and the chronic risk            dose at which adverse effects of concern
                                                  reproductive, or offspring effects                       assessment generally addresses this risk.             are identified (the LOAEL). Uncertainty/
                                                  observed. Benzobicyclon was                              A bacterial reverse-mutation assay with               safety factors are used in conjunction
                                                  categorized as having low acute toxicity                 metabolite B to evaluate genotoxicity                 with the POD to calculate a safe
                                                  via the oral, dermal, and inhalation                     was found to be negative. Due to the                  exposure level—generally referred to as
                                                  routes of exposure. It produces minimal                  incomplete database for metabolite B,                 a population-adjusted dose (PAD) or a
                                                  but reversible eye irritation, but is not                studies from the tembotrione database                 reference dose (RfD)—and a safe margin
                                                  a dermal irritant or dermal sensitizer.                  were used for preliminary evaluation of               of exposure (MOE). For non-threshold
                                                  Benzobicyclon is classified as ‘‘Not                     risks from exposure to metabolite B,                  risks, the Agency assumes that any
                                                  likely to be Carcinogenic to Humans’’                    along with the appropriate database                   amount of exposure will lead to some
                                                  based on the absence of treatment-                       uncertainty factors to ensure the                     degree of risk. Thus, the Agency
                                                  related tumors in two adequate rodent                    tembotrione database is protective for                estimates risk in terms of the probability
                                                  carcinogenicity studies. There was no                    the proposed use pattern. Any                         of an occurrence of the adverse effect
                                                  concern for mutagenicity.                                expansion in the use of benzobicyclon                 expected in a lifetime. For more
                                                     Benzobicyclon rapidly hydrolyzes to                   would require additional data to further              information on the general principles
                                                  generate the anticipated pesticidal                      characterize the toxicological effects of             EPA uses in risk characterization and a
                                                  active degradate, the triketone                          metabolite B.                                         complete description of the risk
                                                  metabolite B (also referred to as 1315P–                    Specific information on the studies                assessment process, see http://
                                                  070). For metabolite B, a limited amount                 received and the nature of the adverse                www.epa.gov/pesticides/factsheets/
                                                  of toxicological data is available. An in                effects caused by benzobicyclon and                   riskassess.htm.
                                                  vitro enzyme activity assay that was                     metabolite B as well as the no-observed-                 A summary of the toxicological
                                                  submitted indicates that metabolite B is                 adverse-effect-level (NOAEL) and the                  endpoints for benzobicyclon and
                                                  an inhibitor of 4-                                       lowest-observed-adverse-effect-level                  metabolite B used for human risk
                                                  hydroxyphenylpyruvate dioxygenase                        (LOAEL) from the toxicity studies can                 assessment is shown in Table 1 and
                                                  (HPPD). In mammals, HPPD is a key                        be found at http://www.regulations.gov                Table 2 of this unit.

                                                   TABLE 1—SUMMARY OF TOXICOLOGICAL DOSES AND ENDPOINTS FOR BENZOBICYCLON FOR USE IN HUMAN HEALTH RISK
                                                                                              ASSESSMENT
                                                                                          Point of departure and             RfD, PAD, LOC for
                                                        Exposure/scenario                                                                                             Study and toxicological effects
                                                                                         uncertainty/safety factors           risk assessment

                                                  Acute dietary (All popu-              No appropriate toxicological effect attributable to a single dose was observed. Therefore, a dose and endpoint
                                                    lations).                           were not identified for this risk assessment.

                                                  Chronic dietary (All popu-            NOAEL = 63.6 mg/kg/day          Chronic RfD = 0.636 mg/           Two-Generation Reproduction Toxicity Study (rat).
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                    lations).                           UFA = 10x                         kg/day.                         LOAEL = 1,320 mg/kg/day based on increased inci-
                                                                                        UFH = 10x                                                           dence of hydropic degeneration (basophilic cells) in
                                                                                        FQPA SF = 1x                    cPAD = 0.636 mg/kg/day.             the pituitary.
                                                  Incidental oral Short-term (1         NOAEL = 63.6 mg/kg/day          Residential LOC for MOE           Two-Generation Reproduction Toxicity Study (rat).
                                                    to 30 days) and Inter-              UFA = 10x                         <100.                           LOAEL = 1,320 mg/kg/day based on increased inci-
                                                    mediate-Term (1–6                   UFH = 10x                                                           dence of hydropic degeneration (basophilic cells) in
                                                    months).                            FQPA SF = 1x                                                        the pituitary.




                                             VerDate Sep<11>2014   16:35 Apr 24, 2017    Jkt 241001   PO 00000   Frm 00023   Fmt 4700   Sfmt 4700   E:\FR\FM\25APR1.SGM   25APR1


                                                  18998               Federal Register / Vol. 82, No. 78 / Tuesday, April 25, 2017 / Rules and Regulations

                                                   TABLE 1—SUMMARY OF TOXICOLOGICAL DOSES AND ENDPOINTS FOR BENZOBICYCLON FOR USE IN HUMAN HEALTH RISK
                                                                                         ASSESSMENT—Continued
                                                                                          Point of departure and             RfD, PAD, LOC for
                                                        Exposure/scenario                                                                                             Study and toxicological effects
                                                                                         uncertainty/safety factors           risk assessment

                                                  Dermal Short-term (1 to 30            No hazard was identified for dermal exposure based on a dermal toxicity study and there was no evidence of in-
                                                    days) and Intermediate-             creased quantitative susceptibility; therefore, a quantitative dermal assessment is not needed.
                                                    Term (1–6 months).

                                                  Inhalation Short-term (1 to           Oral NOAEL = 63.6 mg/kg/        Residential LOC for MOE           Two-Generation Reproduction Toxicity Study (rat).
                                                    30 days) and Intermediate             day.                            = <100.                         LOAEL = 1,320 mg/kg/day based on increased inci-
                                                    Term (1–6 months).                  UFA = 10x                                                           dence of hydropic degeneration (basophilic cells) in
                                                                                        UFH = 10x                                                           the pituitary.
                                                                                        FQPA SF = 1x

                                                  Cancer (Oral, dermal, inha-           Classification: ‘‘Not likely to be Carcinogenic to Humans: based on the absence of treatment-related tumors in two
                                                    lation).                            adequate rodent carcinogenicity studies.
                                                    LOAEL = lowest-observed-adverse-effect-level. LOC = level of concern. mg/kg/day = milligram/kilogram/day. MOE = margin of exposure.
                                                  NOAEL = no-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 (c = chronic). RfD = reference dose.

                                                    TABLE 2—SUMMARY OF TOXICOLOGICAL DOSES AND ENDPOINTS FOR METABOLITE B FOR USE IN HUMAN HEALTH RISK
                                                                                              ASSESSMENT
                                                                                          Point of departure and             RfD, PAD, LOC for
                                                        Exposure/scenario                                                                                             Study and toxicological effects
                                                                                         uncertainty/safety factors           risk assessment

                                                  Acute Dietary (All Popu-              LOAEL = 0.8 mg/kg/day ....      Acute RfD = 0.00027 mg/           Developmental Neurotoxicity Study for Tembotrione.
                                                    lations).                           UFA = 10x                         kg/day.                         Offspring NOAEL was not established. Offspring
                                                                                        UFH = 10x                                                           LOAEL = 0.8 mg/kg/day based on decreased
                                                                                        FQPA SF = 30x 1                 aPAD = 0.00027 mg/kg/               acoustic startle response on PND 60 (males), and
                                                                                                                          day.                              brain morphometric changes on PND 75 (males and
                                                                                                                                                            females).
                                                  Chronic dietary (All popu-            NOAEL = 0.04 mg/kg/day          Chronic RfD = 0.00004             Chronic/Carcinogenicity Study (rat) for Tembotrione.
                                                    lations).                           UFA = 10x                         mg/kg/day.                      LOAEL = 0.79 mg/kg/day based on neovascularization
                                                                                        UFH = 10x                                                           and edema of the cornea and snow flake-like cor-
                                                                                        FQPA SF = 10x 2                 cPAD = 0.00004 mg/kg/               neal opacity, unilateral or bilateral keratitis of the
                                                                                                                          day.                              eye, decreased mean body weight and mean body-
                                                                                                                                                            weight gain, increased total cholesterol, higher ke-
                                                                                                                                                            tone levels and lower pH values, higher protein lev-
                                                                                                                                                            els, increased kidney weight, kidney to body weight
                                                                                                                                                            and kidney to brain weight ratios, chronic
                                                                                                                                                            nephropathy and atrophy of the sciatic nerve.
                                                    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 =
                                                  FQPA Safety Factor. PAD = population-adjusted dose (a = acute, c = chronic). RfD = reference dose. PND = Postnatal Day
                                                    1 The FQPA SF accounts for the database uncertainty factor and the extrapolation of a LOAEL to NOAEL.
                                                    2 The FQPA SF accounts for the database uncertainty factor.




                                                  C. Exposure Assessment                                   quantitative acute dietary exposure                       iii. Cancer. Based on the data
                                                     1. Dietary exposure from food and                     assessment is unnecessary.                             summarized in Unit III.A., EPA has
                                                  feed uses. In evaluating dietary                            ii. Chronic exposure. In conducting                 concluded that benzobicyclon does not
                                                  exposure to benzobicyclon (parent),                      the chronic dietary exposure assessment                pose a cancer risk to humans. Therefore,
                                                  EPA considered exposure under the                        EPA used the food consumption data                     a dietary exposure assessment for the
                                                  petitioned-for tolerances. For metabolite                from the USDA’s 2003–2008 food                         purpose of assessing cancer risk is
                                                  B, there is no anticipated exposure in                   consumption data from the U.S.                         unnecessary.
                                                  food; metabolite B is only a residue of                  Department of Agriculture’s (USDA’s)                      iv. Anticipated residue and percent
                                                  concern in drinking water. EPA assessed                  National Health and Nutrition                          crop treated (PCT) information. EPA did
                                                  dietary exposures from benzobicyclon                     Examination Survey, What We Eat in                     not use anticipated residue and/or PCT
                                                  in food as follows:                                      America, (NHANES/WWEIA). As for                        information in the dietary assessment
                                                     i. Acute exposure. Quantitative acute                 residue levels of parent benzobicyclon                 for parent benzobicyclon so tolerance
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                  dietary exposure and risk assessments                    in food, EPA incorporated tolerance-                   level residues and 100% CT were
                                                  are performed for a food-use pesticide,                  level residues and 100 percent crop                    assumed resulting in risk estimates that
                                                  if a toxicological study has indicated the               treated (PCT) for rice. For metabolite B,              were less than the LOC to EPA. For
                                                  possibility of an effect of concern                      there is no anticipated exposure in food;              metabolite B, there is no anticipated
                                                  occurring as a result of a 1-day or single               metabolite B is only a residue of                      exposure in food; metabolite B is only
                                                  exposure. No such effects were                           concern in drinking water therefore                    a residue of concern in drinking water.
                                                  identified in the toxicological studies                  chronic dietary exposure was                           Because risk estimates for metabolite B
                                                  for benzobicyclon; therefore, a                          considered for metabolite B separately.                in drinking water exceeded the EPA’s


                                             VerDate Sep<11>2014   16:35 Apr 24, 2017    Jkt 241001   PO 00000   Frm 00024   Fmt 4700   Sfmt 4700   E:\FR\FM\25APR1.SGM   25APR1


                                                                      Federal Register / Vol. 82, No. 78 / Tuesday, April 25, 2017 / Rules and Regulations                                        18999

                                                  LOC, a refined water exposure                           substances that have a common                         inhibitor. To account for the lack of
                                                  assessment was conducted which                          mechanism of toxicity.’’                              data, the acute dietary assessment
                                                  included a 10% CT assumption, which                       EPA has not found benzobicyclon to                  applies a 30X FQPA SF to account for
                                                  is described in detail in the following                 share a common mechanism of toxicity                  extrapolation of a LOAEL to NOAEL
                                                  section.                                                with any other substances, and                        and the database uncertainty factor for
                                                     2. Dietary exposure from drinking                    benzobicyclon does not appear to                      lack of studies. This safety factor is
                                                  water. The Agency used refined water                    produce a toxic metabolite produced by                considered sufficient given the LOAEL
                                                  exposure models in the dietary exposure                 other substances. For the purposes of                 in the developmental neurotoxicity
                                                  analysis and risk assessment for                        this tolerance action, therefore, EPA has             study for tembotrione is considered
                                                  benzobicyclon and metabolite B in                       assumed that benzobicyclon does not                   conservative given the minimal changes
                                                  drinking water. These simulation                        have a common mechanism of toxicity                   seen at that dose. The chronic dietary
                                                  models take into account data on the                    with other substances. For information                assessment applies a 10X FQPA SF to
                                                  physical, chemical, and fate/transport                  regarding EPA’s efforts to determine                  account for the database uncertainty
                                                  characteristics of benzobicyclon and                    which chemicals have a common                         factor for lack of studies. These safety
                                                  metabolite B. Further information                       mechanism of toxicity and to evaluate                 factors will adequately account for any
                                                  regarding EPA drinking water models                     the cumulative effects of such                        potential prenatal and postnatal toxicity
                                                  used in pesticide exposure assessment                   chemicals, see EPA’s Web site at https://             and address any residual uncertainty
                                                  can be found at http://www.epa.gov/                     www.epa.gov/pesticide-science-and-                    concerning the toxicity database. The
                                                  oppefed1/models/water/index.htm.                        assessing-pesticide-risks/cumulative-                 Agency’s assessment of exposure to
                                                     Modeled estimates of drinking water                  assessment-risk-pesticides.                           metabolite B was conducted for
                                                  concentrations based on the Pesticide in                D. Safety Factor for Infants and                      drinking water only, as there is no
                                                  Flooded Applications Model (PFAM;                       Children                                              anticipated exposure in food. The
                                                  v2.0) were directly entered into the                      1. In general. Section 408(b)(2)(C) of              modeled drinking water concentrations
                                                  dietary exposure model. Because no                      FFDCA provides that EPA shall apply                   for metabolite B are based on
                                                  toxicological effect attributable to a                  an additional tenfold (10X) margin of                 conservative modeled estimates.
                                                  single dose was observed for                            safety for infants and children in the                  For benzobicyclon, EPA has
                                                  benzobicyclon, an acute exposure                        case of threshold effects to account for              determined that reliable data show the
                                                  assessment was not done. Therefore, the                 prenatal and postnatal toxicity and the               safety of infants and children would be
                                                  acute dietary risk assessment was                       completeness of the database on toxicity              adequately protected if the FQPA SF
                                                  conducted for metabolite B only (the                    and exposure unless EPA determines                    were reduced to 1x SF. That decision is
                                                  parent benzobicylon rapidly hydrolyzes                  based on reliable data that a different               based on the following findings:
                                                  to metabolite B) using the water                        margin of safety will be safe for infants
                                                  concentration value of 24.8 ppb to                                                                              i. The toxicity database for
                                                                                                          and children. This additional margin of
                                                  assess the metabolite B contribution to                                                                       benzobicyclon is complete.
                                                                                                          safety is commonly referred to as the
                                                  drinking water. For chronic dietary risk                FQPA Safety Factor (SF). In applying                    ii. There is no indication that
                                                  assessment, the water concentration of                  this provision, EPA either retains the                benzobicyclon is a neurotoxic chemical
                                                  value 0.0031 ppb was used to assess the                 default value of 10X, or uses a different             and there is no need for a
                                                  contribution to drinking water for                      additional safety factor when reliable                developmental neurotoxicity study or
                                                  benzobicyclon and 3.0 ppb for                           data available to EPA support the choice              additional UFs to account for
                                                  metabolite B. Based on the data                         of a different factor.                                neurotoxicity.
                                                  summarized in Unit III.A., EPA has                        2. Prenatal and postnatal sensitivity.                iii. There is no evidence that
                                                  concluded dietary cancer risk concerns                  For benzobicyclon, there was no                       benzobicyclon results in increased
                                                  due to long-term consumption of                         evidence of increased quantitative or                 susceptibility in in utero rats or rabbits
                                                  metabolite B residues are adequately                    qualitative fetal or offspring                        in the prenatal developmental studies or
                                                  addressed by the chronic exposure                       susceptibility in the developmental
                                                  analysis using the cPAD. Therefore, a                                                                         in young rats in the 2-generation
                                                                                                          toxicity and two-generation                           reproduction study
                                                  dietary exposure assessment for the                     reproduction toxicity studies in rats
                                                  purpose of assessing cancer risk is                     with no developmental, reproductive, or                 iv. There are no residual uncertainties
                                                  unnecessary.                                            offspring effects observed. For                       identified in the exposure databases.
                                                     3. From non-dietary exposure. The                    metabolite B, there are no available                  The dietary food exposure assessments
                                                  term ‘‘residential exposure’’ is used in                toxicity data to evaluate offspring                   for parent benzobicyclon were
                                                  this document to refer to non-                          sensitivity; however, toxicological data              performed based on 100% CT and
                                                  occupational, non-dietary exposure                      are available from other HPPD                         tolerance-level residues. For metabolite
                                                  (e.g., for lawn and garden pest control,                inhibitors, including developmental                   B, there is no anticipated exposure in
                                                  indoor pest control, termiticides, and                  toxicity studies in rats and rabbits, two-            food; metabolite B is only a residue of
                                                  flea and tick control on pets).                         generation reproduction studies in rats,              concern in drinking water. Because risk
                                                  Benzobicyclon is not registered for any                 and developmental neurotoxicity                       estimates for metabolite B in drinking
                                                  specific use patterns that would result                 studies in rats. All of the selected                  water exceeded the EPA’s LOC, a
                                                  in residential exposure.                                endpoints for risk assessment were                    refined water exposure assessment was
                                                     4. Cumulative effects from substances                protective of developmental and                       conducted which includes a 10% CT
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                  with a common mechanism of toxicity.                    offspring effects and tembotrione                     assumption. EPA made conservative
                                                  Section 408(b)(2)(D)(v) of FFDCA                        provided the most sensitive endpoint.                 (protective) assumptions in the ground
                                                  requires that, when considering whether                   3. Conclusion. For metabolite B, the                and surface water modeling used to
                                                  to establish, modify, or revoke a                       database in incomplete. Nevertheless,                 assess exposure to benzobicyclon and
                                                  tolerance, the Agency consider                          sufficient data are available to confirm              metabolite B in drinking water. These
                                                  ‘‘available information’’ concerning the                that metabolite B is an HPPD inhibitor,               assessments will not underestimate the
                                                  cumulative effects of a particular                      which supports utilization of data from               exposure and risks posed by
                                                  pesticide’s residues and ‘‘other                        tembotrione, the most potent HPPD                     benzobicyclon or metabolite B.


                                             VerDate Sep<11>2014   16:35 Apr 24, 2017   Jkt 241001   PO 00000   Frm 00025   Fmt 4700   Sfmt 4700   E:\FR\FM\25APR1.SGM   25APR1


                                                  19000               Federal Register / Vol. 82, No. 78 / Tuesday, April 25, 2017 / Rules and Regulations

                                                  E. Aggregate Risks and Determination of                 would result in intermediate-term                     C. Revisions to Petitioned-For
                                                  Safety                                                  residential exposure. Intermediate-term               Tolerances
                                                     EPA determines whether acute and                     risk is assessed based on intermediate-                  The petitioner requested a tolerance
                                                  chronic dietary pesticide exposures are                 term residential exposure plus chronic                of 0.01 ppm for rice, straw and rice,
                                                  safe by comparing aggregate exposure                    dietary exposure. Because there is no                 grain. However, based on OCSPP 860
                                                  estimates to the acute PAD (aPAD) and                   intermediate-term residential exposure                Guidelines, Table 1 Feedstuffs, rice
                                                  chronic PAD (cPAD). For linear cancer                   and chronic dietary exposure has                      straw is not a regulated food
                                                  risks, EPA calculates the lifetime                      already been assessed under the                       commodity. Therefore, a tolerance for
                                                  probability of acquiring cancer given the               appropriately protective cPAD (which is               rice, straw is not needed.
                                                  estimated aggregate exposure. Short-,                   at least as protective as the POD used to                The registrant has proposed use only
                                                  intermediate-, and chronic-term risks                   assess intermediate-term risk), no                    in California, and has provided residue
                                                  are evaluated by comparing the                          further assessment of intermediate-term               data for only California. The available
                                                  estimated aggregate food, water, and                    risk is necessary, and EPA relies on the              residue data for the establishment of a
                                                  residential exposure to the appropriate                 chronic dietary risk assessment for                   tolerance level for residues of
                                                  PODs to ensure that an adequate MOE                     evaluating intermediate-term risk for                 benzobicyclon support a value of 0.01
                                                  exists. For metabolite B, the dietary                   benzobicyclon.                                        ppm in rice, grain.
                                                  exposure analyses included drinking                        5. Aggregate cancer risk for U.S.
                                                                                                          population. Based on the lack of                      V. Conclusion
                                                  water only and there are no uses that
                                                  would result in residential exposure;                   evidence of carcinogenicity,                             Therefore, a tolerance associated with
                                                  therefore, an aggregate assessment was                  benzobicyclon is not expected to pose a               a regional registration in California is
                                                  only necessary for the parent,                          cancer risk to humans. Dietary cancer                 established for residues of
                                                  benzobicyclon.                                          risk concerns due to long-term                        benzobicyclon, in or on rice, grain at
                                                     1. Acute risk. An acute aggregate risk               consumption of metabolite B residues                  0.01 ppm.
                                                  assessment takes into account acute                     are adequately addressed by the chronic
                                                                                                          exposure analysis using the cPAD.                     VI. Statutory and Executive Order
                                                  exposure estimates from dietary
                                                                                                             6. Determination of safety. Based on               Reviews
                                                  consumption of food and drinking
                                                  water. No adverse effect resulting from                 these risk assessments, EPA concludes                    This action establishes a tolerance
                                                  a single oral exposure was identified                   that there is a reasonable certainty that             under FFDCA section 408(d) in
                                                  and no acute dietary endpoint was                       no harm will result to the general                    response to a petition submitted to the
                                                  selected. Therefore, benzobicyclon is                   population, or to infants and children                Agency. The Office of Management and
                                                  not expected to pose an acute risk.                     from aggregate exposure to                            Budget (OMB) has exempted these types
                                                     2. Chronic risk. Using the exposure                  benzobicyclon residues.                               of actions from review under Executive
                                                  assumptions described in this unit for                  IV. Other Considerations                              Order 12866, entitled ‘‘Regulatory
                                                  chronic exposure, EPA has concluded                                                                           Planning and Review’’ (58 FR 51735,
                                                  that chronic exposure to benzobicyclon                  A. Analytical Enforcement Methodology                 October 4, 1993). Because this action
                                                  from food and water will result in risks                   Adequate enforcement methodology                   has been exempted from review under
                                                  of <1% of the cPAD for all populations.                 (a liquid chromatography-tandem mass                  Executive Order 12866, this action is
                                                  There are no residential uses for                       spectrometry (LC–MS/MS) method is                     not subject to Executive Order 13211,
                                                  benzobicyclon.                                          available to enforce the tolerance                    entitled ‘‘Actions Concerning
                                                     3. Short-term risk. Short-term                       expression.                                           Regulations That Significantly Affect
                                                  aggregate exposure takes into account                                                                         Energy Supply, Distribution, or Use’’ (66
                                                  short-term residential exposure plus                    B. International Residue Limits                       FR 28355, May 22, 2001) or Executive
                                                  chronic exposure to food and water                        In making its tolerance decisions, EPA              Order 13045, entitled ‘‘Protection of
                                                  (considered to be a background                          seeks to harmonize U.S. tolerances with               Children from Environmental Health
                                                  exposure level). A short-term adverse                   international standards whenever                      Risks and Safety Risks’’ (62 FR 19885,
                                                  effect was identified; however,                         possible, consistent with U.S. food                   April 23, 1997). This action does not
                                                  benzobicyclon is not registered for any                 safety standards and agricultural                     contain any information collections
                                                  use patterns that would result in short-                practices. EPA considers the                          subject to OMB approval under the
                                                  term residential exposure. Short-term                   international maximum residue limits                  Paperwork Reduction Act (PRA) (44
                                                  risk is assessed based on short-term                    (MRLs) established by the Codex                       U.S.C. 3501 et seq.), nor does it require
                                                  residential exposure plus chronic                       Alimentarius Commission (Codex), as                   any special considerations under
                                                  dietary exposure. Because there is no                   required by FFDCA section 408(b)(4).                  Executive Order 12898, entitled
                                                  short-term residential exposure and                     The Codex Alimentarius is a joint                     ‘‘Federal Actions to Address
                                                  chronic dietary exposure has already                    United Nations Food and Agriculture                   Environmental Justice in Minority
                                                  been assessed and is appropriately                      Organization/World Health                             Populations and Low-Income
                                                  protective cPAD (which is at least as                   Organization food standards program,                  Populations’’ (59 FR 7629, February 16,
                                                  protective as the POD used to assess                    and it is recognized as an international              1994).
                                                  short-term risk); no further assessment                 food safety standards-setting                            Since tolerances and exemptions that
                                                  of short-term risk is necessary.                        organization in trade agreements to                   are established on the basis of a petition
                                                     4. Intermediate-term risk.                           which the United States is a party. EPA               under FFDCA section 408(d), such as
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                  Intermediate-term aggregate exposure                    may establish a tolerance that is                     the tolerance in this final rule, do not
                                                  takes into account intermediate-term                    different from a Codex MRL; however,                  require the issuance of a proposed rule,
                                                  residential exposure plus chronic                       FFDCA section 408(b)(4) requires that                 the requirements of the Regulatory
                                                  exposure to food and water (considered                  EPA explain the reasons for departing                 Flexibility Act (RFA) (5 U.S.C. 601 et
                                                  to be a background exposure level). An                  from the Codex level. The Codex has not               seq.), do not apply.
                                                  intermediate-term adverse effect was                    established a MRL for benzobicyclon in                   This action directly regulates growers,
                                                  identified; however, benzobicyclon is                   or on the commodities associated with                 food processors, food handlers, and food
                                                  not registered for any use patterns that                this rule.                                            retailers, not States or tribes, nor does


                                             VerDate Sep<11>2014   16:35 Apr 24, 2017   Jkt 241001   PO 00000   Frm 00026   Fmt 4700   Sfmt 4700   E:\FR\FM\25APR1.SGM   25APR1


                                                                      Federal Register / Vol. 82, No. 78 / Tuesday, April 25, 2017 / Rules and Regulations                                            19001

                                                  this action alter the relationships or                  § 180.693       Benzobicyclon; tolerances for             ADDRESSES:    The docket for this action,
                                                  distribution of power and                               residues.                                                 identified by docket identification (ID)
                                                  responsibilities established by Congress                  (a) General. [Reserved]                                 number EPA–HQ–OPP–2016–0123, is
                                                  in the preemption provisions of FFDCA                     (b) Section 18 emergency exemptions.                    available at http://www.regulations.gov
                                                  section 408(n)(4). As such, the Agency                  [Reserved]                                                or at the Office of Pesticide Programs
                                                  has determined that this action will not                  (c) Tolerances with regional                            Regulatory Public Docket (OPP Docket)
                                                  have a substantial direct effect on States              registrations. Tolerances with regional                   in the Environmental Protection Agency
                                                  or tribal governments, on the                           registration, as defined in § 180.1(l), are               Docket Center (EPA/DC), EPA West
                                                  relationship between the national                       established for residues of the herbicide                 Bldg., Rm. 3334, 1301 Constitution Ave.
                                                  government and the States or tribal                     benzobicyclon, including its metabolites                  NW., Washington, DC 20460–0001. The
                                                  governments, or on the distribution of                  and degradates, in or on the commodity                    Public Reading Room is open from 8:30
                                                  power and responsibilities among the                    in the table below. Compliance with the                   a.m. to 4:30 p.m., Monday through
                                                  various levels of government or between                 tolerance levels specified below is to be                 Friday, excluding legal holidays. The
                                                  the Federal Government and Indian                       determined by measuring only                              telephone number for the Public
                                                  tribes. Thus, the Agency has determined                 benzobicyclon, 3-[2-chloro-4-                             Reading Room is (202) 566–1744, and
                                                  that Executive Order 13132, entitled                    (methylsulfonyl)benzoyl]-4-                               the telephone number for the OPP
                                                  ‘‘Federalism’’ (64 FR 43255, August 10,                 (phenylthio)bicyclo-[3.2.1]oct-3-en-2-                    Docket is (703) 305–5805. Please review
                                                  1999) and Executive Order 13175,                        one), in or on the following raw                          the visitor instructions and additional
                                                  entitled ‘‘Consultation and Coordination                agricultural commodities:                                 information about the docket available
                                                  with Indian Tribal Governments’’ (65 FR                                                                           at http://www.epa.gov/dockets.
                                                                                                                                                       Parts per
                                                  67249, November 9, 2000) do not apply                               Commodity                                     FOR FURTHER INFORMATION CONTACT:
                                                                                                                                                        million
                                                  to this action. In addition, this action                                                                          Michael Goodis, Registration Division
                                                  does not impose any enforceable duty or                 Rice, grain ............................       0.01       (7505P), Office of Pesticide Programs,
                                                  contain any unfunded mandate as                                                                                   Environmental Protection Agency, 1200
                                                  described under Title II of the Unfunded                  (d) Indirect or inadvertent residues.                   Pennsylvania Ave. NW., Washington,
                                                  Mandates Reform Act (UMRA) (2 U.S.C.                    [Reserved]                                                DC 20460–0001; telephone number:
                                                  1501 et seq.).                                          [FR Doc. 2017–08357 Filed 4–24–17; 8:45 am]               (703) 305–7090; email address:
                                                     This action does not involve any                     BILLING CODE 6560–50–P                                    RDFRNotices@epa.gov.
                                                  technical standards that would require                                                                            SUPPLEMENTARY INFORMATION:
                                                  Agency consideration of voluntary
                                                  consensus standards pursuant to section                 ENVIRONMENTAL PROTECTION                                  I. General Information
                                                  12(d) of the National Technology                        AGENCY                                                    A. Does this action apply to me?
                                                  Transfer and Advancement Act
                                                  (NTTAA) (15 U.S.C. 272 note).                           40 CFR Part 180                                              You may be potentially affected by
                                                                                                                                                                    this action if you are an agricultural
                                                                                                          [EPA–HQ–OPP–2016–0123; FRL–9960–61]
                                                  VII. Congressional Review Act                                                                                     producer, food manufacturer, or
                                                    Pursuant to the Congressional Review                  Bacillus simplex strain BU288;                            pesticide manufacturer. The following
                                                  Act (5 U.S.C. 801 et seq.), EPA will                    Exemption From the Requirement of a                       list of North American Industrial
                                                  submit a report containing this rule and                Tolerance                                                 Classification System (NAICS) codes is
                                                  other required information to the U.S.                                                                            not intended to be exhaustive, but rather
                                                                                                          AGENCY:  Environmental Protection                         provides a guide to help readers
                                                  Senate, the U.S. House of                               Agency (EPA).
                                                  Representatives, and the Comptroller                                                                              determine whether this document
                                                                                                          ACTION: Final rule.                                       applies to them. Potentially affected
                                                  General of the United States prior to
                                                  publication of the rule in the Federal                                                                            entities may include:
                                                                                                          SUMMARY:   This regulation establishes an                    • Crop production (NAICS code 111).
                                                  Register. This action is not a ‘‘major                  exemption from the requirement of a                          • Animal production (NAICS code
                                                  rule’’ as defined by 5 U.S.C. 804(2).                   tolerance for residues of Bacillus                        112).
                                                  List of Subjects in 40 CFR Part 180                     simplex strain BU288 when used as an                         • Food manufacturing (NAICS code
                                                                                                          inert ingredient (emulsifier) in pesticide                311).
                                                    Environmental protection,                             formulations applied to growing crops                        • Pesticide manufacturing (NAICS
                                                  Administrative practice and procedure,                  and raw agricultural commodities.                         code 32532).
                                                  Agricultural commodities, Pesticides                    BASF Corporation submitted a petition
                                                  and pests, Reporting and recordkeeping                  to EPA under the Federal Food, Drug,                      B. How can I get electronic access to
                                                  requirements.                                           and Cosmetic Act (FFDCA), requesting                      other related information?
                                                    Dated: April 5, 2017,                                 establishment of an exemption from the                      You may access a frequently updated
                                                  Michael Goodis,
                                                                                                          requirement of a tolerance. This                          electronic version of 40 CFR part 180
                                                                                                          regulation eliminates the need to                         through the Government Printing
                                                  Director, Registration Division, Office of
                                                  Pesticide Programs.
                                                                                                          establish a maximum permissible level                     Office’s e-CFR site at http://
                                                                                                          for residues of Bacillus simplex strain                   www.ecfr.gov/cgi-bin/text-
                                                    Therefore, 40 CFR chapter I is                        BU288 when used in accordance with                        idx?&c=ecfr&tpl=/ecfrbrowse/Title40/
                                                  amended as follows:                                     approved conditions.                                      40tab_02.tpl.
asabaliauskas on DSK3SPTVN1PROD with RULES




                                                                                                          DATES: This regulation is effective April
                                                  PART 180—[AMENDED]                                                                                                C. How can I file an objection or hearing
                                                                                                          25, 2017. Objections and requests for
                                                                                                          hearings must be received on or before                    request?
                                                  ■ 1. The authority citation for part 180
                                                  continues to read as follows:                           June 26, 2017, and must be filed in                         Under FFDCA section 408(g), 21
                                                                                                          accordance with the instructions                          U.S.C. 346a, any person may file an
                                                      Authority: 21 U.S.C. 321(q), 346a and 371.          provided in 40 CFR part 178 (see also                     objection to any aspect of this regulation
                                                  ■ 2. Add § 180.693 to subpart C to read                 Unit I.C. of the SUPPLEMENTARY                            and may also request a hearing on those
                                                  as follows:                                             INFORMATION).                                             objections. You must file your objection


                                             VerDate Sep<11>2014   16:35 Apr 24, 2017   Jkt 241001   PO 00000   Frm 00027     Fmt 4700     Sfmt 4700   E:\FR\FM\25APR1.SGM   25APR1



Document Created: 2017-04-25 02:18:51
Document Modified: 2017-04-25 02:18:51
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis regulation is effective April 25, 2017. Objections and requests for hearings must be received on or before June 26, 2017, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).
ContactMichael Goodis, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460-0001; main telephone
FR Citation82 FR 18995 
CFR AssociatedEnvironmental Protection; Administrative Practice and Procedure; Agricultural Commodities; Pesticides and Pests and Reporting and Recordkeeping Requirements

2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR