Sedaxane; Pesticide Tolerances, 33744-33748 [2013-13267]

Download as PDF 33744 Federal Register / Vol. 78, No. 108 / Wednesday, June 5, 2013 / Rules and Regulations specified below is to be determined by measuring only the sum of imidacloprid (1-[6-chloro-3-pyridinyl)methyl]-Nnitro-2-imidazolidinimine) and its metabolites containing the 6chloropyridinyl moiety, calculated as the stoichiometric equivalent of imidacloprid. These tolerances will Commodity expire and are revoked on the dates specified in the following table: Parts per million Sugarcane, cane ................................................................................................ Sugarcane, molasses ........................................................................................ * * * * * 6.0 50 DC 20460–0001; telephone number: (703) 308–0034; email address: garvie.heather@epa.gov. [FR Doc. 2013–13203 Filed 6–4–13; 8:45 am] BILLING CODE 6560–50–P SUPPLEMENTARY INFORMATION: ENVIRONMENTAL PROTECTION AGENCY I. General Information 40 CFR Part 180 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). A. Does this action apply to me? [EPA–HQ–OPP–2012–0704; FRL–9386–9] Sedaxane; Pesticide Tolerances Environmental Protection Agency (EPA). ACTION: Final rule. TKELLEY on DSK3SPTVN1PROD with RULES AGENCY: SUMMARY: This regulation establishes tolerances for residues of sedaxane in or on multiple commodities which are identified and discussed later in this document. Syngenta Crop Protection, LLC requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA). DATES: This regulation is effective June 5, 2013. Objections and requests for hearings must be received on or before August 5, 2013, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION). ADDRESSES: The docket for this action, identified by docket identification (ID) number EPA–HQ–OPP–2012–0704, is available at https://www.regulations.gov or at the Office of Pesticide Programs Regulatory Public Docket (OPP Docket) in the Environmental Protection Agency Docket Center (EPA/DC), EPA West Bldg., Rm. 3334, 1301 Constitution Ave. NW., Washington, DC 20460–0001. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The telephone number for the Public Reading Room is (202) 566–1744, and the telephone number for the OPP Docket is (703) 305–5805. Please review the visitor instructions and additional information about the docket available at https://www.epa.gov/dockets. FOR FURTHER INFORMATION CONTACT: Heather Garvie, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, VerDate Mar<15>2010 16:07 Jun 04, 2013 Jkt 229001 B. How can I get electronic access to other related information? You may access a frequently updated electronic version of EPA’s tolerance regulations at 40 CFR part 180 through the Government Printing Office’s e-CFR site at https://www.ecfr.gov/cgi-bin/textidx?&c=ecfr&tpl=/ecfrbrowse/Title40/ 40tab_02.tpl. C. How can I file an objection or hearing request? Under FFDCA section 408(g), 21 U.S.C. 346a, any person may file an objection to any aspect of this regulation and may also request a hearing on those objections. You must file your objection or request a hearing on this regulation in accordance with the instructions provided in 40 CFR part 178. To ensure proper receipt by EPA, you must identify docket ID number EPA–HQ– OPP–2012–0704 in the subject line on the first page of your submission. All objections and requests for a hearing must be in writing, and must be received by the Hearing Clerk on or before August 5, 2013. Addresses for mail and hand delivery of objections and hearing requests are provided in 40 CFR 178.25(b). PO 00000 Frm 00056 Fmt 4700 Sfmt 4700 Expiration/revocation date 12/31/15 12/31/15 In addition to filing an objection or hearing request with the Hearing Clerk as described in 40 CFR part 178, please submit a copy of the filing (excluding any Confidential Business Information (CBI)) for inclusion in the public docket. Information not marked confidential pursuant to 40 CFR part 2 may be disclosed publicly by EPA without prior notice. Submit the non-CBI copy of your objection or hearing request, identified by docket ID number EPA–HQ–OPP– 2012–0704, by one of the following methods: • Federal eRulemaking Portal: https:// www.regulations.gov. Follow the online instructions for submitting comments. Do not submit electronically any information you consider to be CBI or other information whose disclosure is restricted by statute. • Mail: OPP Docket, Environmental Protection Agency Docket Center (EPA/ DC), (28221T), 1200 Pennsylvania Ave. NW., Washington, DC 20460–0001. • Hand Delivery: To make special arrangements for hand delivery or delivery of boxed information, please follow the instructions at https:// www.epa.gov/dockets/contacts.htm. Additional instructions on commenting or visiting the docket, along with more information about dockets generally, is available at https://www.epa.gov/ dockets. II. Summary of Petitioned-For Tolerance In the Federal Register of September 28, 2012 (77 FR 59578) (FRL–9364–6), 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 2F8071) by Syngenta Crop Protection, Inc., Regulatory Affairs, P.O. Box 18300, Greensboro, NC 27419–8300. The petition requested that 40 CFR 180.665 be amended by establishing tolerances for residues of the fungicide sedaxane, in or on corn (grain, forage, stover), popcorn (grain, stover), and corn ears at 0.01 parts per million (ppm); sorghum (grain, forage, stover) at 0.01 ppm; pea and bean, dried, shelled, subgroup 6C (grain, forage, hay) at 0.01 ppm; and rapeseed, subgroup 20A (grain) at 0.01 ppm. That document referenced a E:\FR\FM\05JNR1.SGM 05JNR1 Federal Register / Vol. 78, No. 108 / Wednesday, June 5, 2013 / Rules and Regulations summary of the petition prepared by Syngenta Crop Protection, Inc., the registrant, which is available in the docket, https://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 has corrected commodity definitions and recommended additional tolerances. The reasons for these changes are explained in Unit IV.C. TKELLEY on DSK3SPTVN1PROD with RULES 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 sedaxane including exposure resulting from the tolerances established by this action. EPA’s assessment of exposures and risks associated with sedaxane follows. A. Toxicological Profile EPA has evaluated the available toxicity data and considered its validity, completeness, and reliability as well as the relationship of the results of the studies to human risk. EPA has also considered available information concerning the variability of the sensitivities of major identifiable subgroups of consumers, including infants and children. The toxicological effects reported in the submitted animal studies such as mitochondrial disintegration and glycogen depletion in the liver are consistent with the VerDate Mar<15>2010 16:07 Jun 04, 2013 Jkt 229001 pesticidal mode of action also being the mode of toxic action in mammals. The rat is the most sensitive species tested, and the main target tissue for sedaxane is the liver. Sedaxane also caused thyroid hypertrophy/hyperplasia. In the acute neurotoxicity (ACN) and subchronic neurotoxicity (SCN) studies, sedaxane caused decreased activity, decreased muscle tone, decreased rearing and decreased grip strength. There are indications of reproductive toxicity in rats at the high dose, but these effects did not result in reduced fertility. In the rat, no adverse effects in fetuses were seen in developmental toxicity studies at maternally toxic doses. However, in the rabbit, fetal toxicity was observed at the same doses as the dams. Offspring effects in the reproduction study occurred at the same doses causing parental effects, thus there was no quantitative increase in sensitivity in rat pups. Sedaxane is tumorigenic in the liver in the rat and mouse, and led to tumors in the thyroid and uterus in the rat and was classified as ‘‘likely to be carcinogenic to humans.’’ Sedaxane was negative in the mutagenicity studies. The 28-day dermal study did not show systemic toxicity at the limit dose of 1,000 milligrams/kilogram/day (mg/kg/day). Sedaxane has low acute toxicity by the oral, dermal, and inhalation routes. It is not a dermal sensitizer, causes no skin irritation and only slight eye irritation. Specific information on the studies received and the nature of the adverse effects caused by sedaxane as well as the no-observed-adverse-effect-level (NOAEL) and the lowest-observedadverse-effect-level (LOAEL) from the toxicity studies are discussed in the final rule published in the Federal Register of June 20, 2012 (77 FR 36919) (FRL–9345–8). 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 PO 00000 Frm 00057 Fmt 4700 Sfmt 4700 33745 exposure level—generally referred to as a population-adjusted dose (PAD) or a reference dose (RfD)—and a safe margin of exposure (MOE). For non-threshold risks, the Agency assumes that any amount of exposure will lead to some degree of risk. Thus, the Agency estimates risk in terms of the probability of an occurrence of the adverse effect expected in a lifetime. For more information on the general principles EPA uses in risk characterization and a complete description of the risk assessment process, see https:// www.epa.gov/pesticides/factsheets/ riskassess.htm. A summary of the toxicological endpoints for sedaxane used for human risk assessment is discussed in Unit III.B. of the final rule published in the Federal Register of June 20, 2012. C. Exposure Assessment 1. Dietary exposure from food and feed uses. In evaluating dietary exposure to sedaxane, EPA considered exposure under the petitioned-for tolerances as well as all existing sedaxane tolerances in 40 CFR 180.665. EPA assessed dietary exposures from sedaxane 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. Such effects were identified for sedaxane. In estimating acute dietary exposure, EPA used food consumption information from the U.S. Department of Agriculture (USDA) 1994–1996 and 1998 Nationwide Continuing Surveys of Food Intake by Individuals (CSFII). As to residue levels in food, EPA conducted a highly conservative acute dietary risk assessment which used tolerance level residues and assumed 100 percent crop treated (PCT) for all commodities. ii. Chronic exposure. In conducting the chronic dietary exposure assessment, EPA used the food consumption data from the USDA 1994– 1996 and 1998 CSFII. As to residue levels in food, EPA conducted a highly conservative chronic dietary risk assessment which used tolerance level residues and assumed 100 PCT for all commodities. iii. Cancer. EPA determines whether quantitative cancer exposure and risk assessments are appropriate for a fooduse pesticide based on the weight of the evidence from cancer studies and other relevant data. If a quantitative cancer risk assessment is appropriate, cancer risk may be quantified using a linear or nonlinear approach. If sufficient E:\FR\FM\05JNR1.SGM 05JNR1 TKELLEY on DSK3SPTVN1PROD with RULES 33746 Federal Register / Vol. 78, No. 108 / Wednesday, June 5, 2013 / Rules and Regulations information on the carcinogenic mode of action is available, a threshold or nonlinear approach is used and a cancer RfD is calculated based on an earlier non-cancer key event. If carcinogenic mode of action data are not available, or if the mode of action data determines a mutagenic mode of action, a default linear cancer slope factor approach is utilized. Based on significant tumor increases in two adequate rodent carcinogenicity studies and as noted in Unit III.A., EPA has concluded that sedaxane should be classified as ‘‘Likely To Be Carcinogenic to Humans.’’ EPA used a linear approach to quantify cancer risk because mode of action data are not available for sedaxane. EPA assessed exposure for the purpose of estimating cancer risk assuming tolerance-level residues and 100 PCT for all commodities and included modeled drinking water estimates. iv. Anticipated residue PCT information. EPA did not use anticipated residue and/or PCT information in the dietary assessment for sedaxane. One-hundred PCT was assumed for all food commodities. 2. Dietary exposure from drinking water. The Agency used screening level water exposure models in the dietary exposure analysis and risk assessment for sedaxane in drinking water. These simulation models take into account data on the physical, chemical, and fate/ transport characteristics of sedaxane. Further information regarding EPA drinking water models used in pesticide exposure assessment can be found at https://www.epa.gov/oppefed1/models/ water/index.htm. Based on the FQPA First Index Reservoir Screening Tool (FIRST) and Tier II Pesticide Root Zone Model/ Groundwater (PRZM–GW Version 1.0, 12/11/2012), the estimated drinking water concentrations (EDWCs) of sedaxane for acute exposures are estimated to be 4.1 parts per billion (ppb) for surface water and 9.9 ppb for ground water. The water exposures for the chronic dietary and cancer assessments are estimated to be 1.2 ppb for surface water and 8.4 ppb for ground water. Modeled estimates of drinking water concentrations were directly entered into the dietary exposure model. For acute dietary risk assessment, the water concentration value of 9.9 ppb was used to assess the contribution to drinking water. For chronic and cancer dietary risk assessment, the water concentration value of 8.4 ppb was used to assess the contribution to drinking water. 3. From non-dietary exposure. The term ‘‘residential exposure’’ is used in this document to refer to non- VerDate Mar<15>2010 16:07 Jun 04, 2013 Jkt 229001 occupational, non-dietary exposure (e.g., for lawn and garden pest control, indoor pest control, termiticides, and flea and tick control on pets). Sedaxane 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 sedaxane to share a common mechanism of toxicity with any other substances. For the purposes of this tolerance action, therefore, EPA has assumed that sedaxane does not have a common mechanism of toxicity with other substances. For information regarding EPA’s efforts to determine which chemicals have a common mechanism of toxicity and to evaluate the cumulative effects of such chemicals, see EPA’s Web site at https:// www.epa.gov/pesticides/cumulative. D. Safety Factor for Infants and Children 1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA shall apply an additional tenfold (10X) margin of safety for infants and children in the case of threshold effects to account for prenatal and postnatal toxicity and the completeness of the database on toxicity and exposure unless EPA determines based on reliable data that a different margin of safety will be safe for infants and children. This additional margin of safety is commonly referred to as the Food Quality Protection Act (FQPA) Safety Factor (SF). In applying this provision, EPA either retains the default value of 10X, or uses a different additional safety factor when reliable data available to EPA support the choice of a different factor. 2. Prenatal and postnatal sensitivity. There is no evidence for increased susceptibility following prenatal and/or postnatal exposures to sedaxane based on effects seen in developmental toxicity studies in rabbits or rats. There was no evidence of increased susceptibility in a 2-generation reproduction study in rats following prenatal or postnatal exposure to sedaxane. Clear NOAELs/LOAELs were established for the developmental effects seen in rats and rabbits as well as for the offspring effects seen in the 2generation reproduction study. The dose-response relationship for the PO 00000 Frm 00058 Fmt 4700 Sfmt 4700 effects of concern is well characterized. The NOAEL used for the acute dietary risk assessment (30 mg/kg/day), based on effects observed in the ACN study, is protective of the developmental and offspring effects seen in rabbits and rats (NOAELs of 100–200 mg/kg/day). In addition, there is no evidence of neuropathology or abnormalities in the development of the fetal nervous system from the available toxicity studies conducted with sedaxane. 3. Conclusion. EPA has determined that reliable data show the safety of infants and children would be adequately protected if the FQPA SF were reduced to 1x. That decision is based on the following findings: i. The toxicity database for sedaxane is complete. ii. The sedaxane toxicology database did not demonstrate evidence of neurotoxicity. Although sedaxane caused changes in endpoints such as decreased activity, decreased muscle tone, decreased rearing and decreased grip strength in the ACN study and reduced locomotor activity in the SCN study, EPA believes these effects do not support a finding that sedaxane is a neurotoxicant. The observed effects in the ACN and SCN studies were likely secondary to inhibition of mitochondrial energy production, which is the pesticidal mode of action for sedaxane. Furthermore, there was no corroborative neuro-histopathology demonstrated in any study, even at the highest doses tested (i.e., 2,000 mg/kg/ day). Therefore, based on its chemical structure, its pesticidal mode of action, and lack of evidence of neurohistopathology in any acute and repeated-dose toxicity study, sedaxane does not demonstrate potential for neurotoxicity. Since sedaxane did not demonstrate increased susceptibility to the young or specific neurotoxicity, a developmental neurotoxicity (DNT) study is not required. iii. There is no evidence that sedaxane results in increased susceptibility in in utero rats or rabbits in the prenatal developmental studies or in young rats in the 2-generation reproduction study. iv. There are no residual uncertainties identified in the exposure databases. The dietary food exposure assessments were performed based on 100 PCT and tolerance-level residues. EPA made conservative (protective) assumptions in the ground and surface water modeling used to assess exposure to sedaxane in drinking water. These assessments will not underestimate the exposure and risks posed by sedaxane. E:\FR\FM\05JNR1.SGM 05JNR1 Federal Register / Vol. 78, No. 108 / Wednesday, June 5, 2013 / Rules and Regulations TKELLEY on DSK3SPTVN1PROD with RULES 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. Sedaxane is a member of the pyrazole carboxamide fungicides. Metabolic processes involving cleavage of the linkage between the pyrazole and phenyl rings of these compounds have the potential to produce common pyrazole-metabolites. Indeed, confined rotational crops studies for sedaxane and isopyrazam demonstrate that low levels of three common metabolites form. However, due to the low levels of these compounds in rotational crops (<=0.01 ppm), and low concerns about their potential toxicity relative to parent molecules, any risks from aggregation of exposures to common metabolites across chemicals will be insignificant. 1. Acute risk. Using the exposure assumptions discussed in this unit for acute exposure, the acute dietary exposure from food and water to sedaxane will occupy <1% of the aPAD for all populations. 2. Chronic risk. Using the exposure assumptions described in this unit for chronic exposure, EPA has concluded that chronic exposure to sedaxane from food and water will utilize <1% of the cPAD for all populations. There are no residential uses for sedaxane. 3. Short- and intermediate-term risk. Short- and intermediate-term aggregate exposure takes into account short- and intermediate-term residential exposure plus chronic exposure to food and water (considered to be a background exposure level). Short- and intermediate-term adverse effects were identified; however, sedaxane is not registered for any use patterns that would result in short- or intermediateterm residential exposures. Because there is no short- or 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 short-term risk), no further assessment of short- or intermediate-term risk is necessary, and EPA relies on the chronic dietary risk VerDate Mar<15>2010 16:07 Jun 04, 2013 Jkt 229001 33747 assessment for evaluating short- and intermediate-term risk for sedaxane. 4. Aggregate cancer risk for U.S. population. The Agency has classified sedaxane as ‘‘Likely to be Carcinogenic to Humans’’ based on significant tumor increases in two adequate rodent carcinogenicity studies. Accordingly, a cancer dietary risk assessment was conducted, indicating a risk estimate of 1 × 10¥6 for the U.S. population. 5. Determination of safety. Based on these risk assessments, EPA concludes that there is a reasonable certainty that no harm will result to the general population, or to infants and children from aggregate exposure to sedaxane residues. FFDCA section 408(b)(4) requires that EPA explain the reasons for departing from the Codex level. The Codex has not established MRLs for sedaxane. IV. Other Considerations V. Conclusion Therefore, tolerances are established for residues of sedaxane, including its metabolites and degradates in or on corn, field, forage; corn, field, grain; corn, field, stover; corn, pop, grain; corn, pop, stover; corn, sweet, forage; corn, sweet, kernel plus cob with husks removed; corn, sweet, stover; pea and bean, dried shelled, except soybean, subgroup 6C; rapeseed, subgroup 20A; sorghum, grain, forage; sorghum, grain, grain; sorghum, grain, stover; and vegetable, foliage of legume, except soybean, subgroup 7A, all at a tolerance level of 0.01 ppm. A. Analytical Enforcement Methodology Adequate enforcement methodology is available to enforce the tolerance expression. A modification of the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method was developed for the determination of residues of sedaxane (as its isomers SYN508210 and SYN508211) in/on various crops. A successful independent laboratory validation (ILV) study was also conducted on the modified QuEChERS method using samples of wheat green forage and wheat straw fortified with SYN508210 and SYN508211 at 0.005 and 0.05 ppm. The analytical standard for sedaxane, with an expiration date of June 30, 2014, is currently available in the EPA National Pesticide Standards Repository. The method may be requested from: Chief, Analytical Chemistry Branch, Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD 20755–5350; telephone number: (410) 305–2905; email address: residuemethods@epa.gov. B. International Residue Limits In making its tolerance decisions, EPA seeks to harmonize U.S. tolerances with international standards whenever possible, consistent with U.S. food safety standards and agricultural practices. EPA considers the international maximum residue limits (MRLs) established by the Codex Alimentarius Commission (Codex), as required by FFDCA section 408(b)(4). The Codex Alimentarius is a joint United Nations Food and Agriculture Organization/World Health Organization food standards program, and it is recognized as an international food safety standards-setting organization in trade agreements to which the United States is a party. EPA may establish a tolerance that is different from a Codex MRL; however, PO 00000 Frm 00059 Fmt 4700 Sfmt 4700 C. Revisions to Petitioned-For Tolerances The Agency determined that the application of sedaxane to sweet corn (resulting in residues on corn, sweet, kernel plus cob with husks removed) would result in residues to the livestock feedstuffs corn, sweet, forage and corn, sweet, stover; therefore, EPA is establishing tolerances of 0.01 ppm for those commodities. EPA is also correcting commodity definitions for the tolerances. VI. Statutory and Executive Order Reviews This final rule establishes tolerances 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 final rule has been exempted from review under Executive Order 12866, this final rule 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 final rule does not contain any information collections subject to OMB approval under the Paperwork Reduction Act (PRA) (44 U.S.C. 3501 et seq.), nor does it require any special considerations under Executive Order 12898, entitled ‘‘Federal Actions To Address Environmental Justice in Minority Populations and Low-Income Populations’’ (59 FR 7629, February 16, 1994). Since tolerances and exemptions E:\FR\FM\05JNR1.SGM 05JNR1 33748 Federal Register / Vol. 78, No. 108 / Wednesday, June 5, 2013 / Rules and Regulations 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 final rule directly regulates growers, food processors, food handlers, and food retailers, not States or tribes, nor does this action alter the relationships or distribution of power and responsibilities established by Congress in the preemption provisions of 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 final rule. In addition, this final rule does not impose any enforceable duty or contain any unfunded mandate as described under Title II of the Unfunded Mandates Reform Act of 1995 (UMRA) (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 of 1995 (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). TKELLEY on DSK3SPTVN1PROD with RULES List of Subjects in 40 CFR Part 180 16:07 Jun 04, 2013 Jkt 229001 Therefore, 40 CFR chapter I is amended as follows: PART 180—[AMENDED] 1. The authority citation for part 180 continues to read as follows: ■ Authority: 21 U.S.C. 321(q), 346a and 371. 2. In § 180.665, add alphabetically the following commodities to the table in paragraph (a) to read as follows: ■ § 180.665 Sedaxane; tolerances for residues. (a) * * * Parts per million Commodity * * * * Corn, field, forage ..................... Corn, field, grain ....................... Corn, field, stover ..................... Corn, pop, grain ........................ Corn, pop, stover ...................... Corn, sweet, forage .................. Corn, sweet, kernel plus cob with husks removed .............. Corn, sweet, stover .................. * 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 * * * * Pea and bean, dried shelled, except soybean, subgroup 6C .......................................... Rapeseed, subgroup 20A ......... 0.01 0.01 * * * * Sorghum, grain, forage ............. Sorghum, grain, grain ............... Sorghum, grain, stover ............. * 0.01 0.01 0.01 * * * * Vegetable, foliage of legume, except soybean, subgroup 7A .......................................... * * * * * * * * * 0.01 * * * [FR Doc. 2013–13267 Filed 6–4–13; 8:45 am] BILLING CODE 6560–50–P ENVIRONMENTAL PROTECTION AGENCY Diisopropyl Adipate; Exemption From the Requirement of a Tolerance Environmental Protection Agency (EPA). ACTION: Final rule. AGENCY: PO 00000 Frm 00060 Fmt 4700 SUMMARY: This regulation establishes an exemption from the requirement of a tolerance for residues of diisopropyl adipate when used as an inert ingredient (solvent) in pesticide formulations applied to pre- and postharvest crops under EPA regulations at no more than 40% in formulated products intended for mosquito control. Wellmark International submitted a petition prepared by Technology Sciences Group Inc. to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting establishment of an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of diisopropyl adipate. DATES: This regulation is effective June 5, 2013. Objections and requests for hearings must be received on or before August 5, 2013, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION). ADDRESSES: The docket for this action, identified by docket identification (ID) number EPA–HQ–OPP–2012–0469, is available at https://www.regulations.gov or at the Office of Pesticide Programs Regulatory Public Docket (OPP Docket) in the Environmental Protection Agency Docket Center (EPA/DC), EPA West Bldg., Rm. 3334, 1301 Constitution Ave. NW., Washington, DC 20460–0001. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The telephone number for the Public Reading Room is (202) 566–1744, and the telephone number for the OPP Docket is (703) 305–5805. Please review the visitor instructions and additional information about the docket available at https://www.epa.gov/dockets. FOR FURTHER INFORMATION CONTACT: David Lieu, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460–0001; telephone number: 703–305–0079; email address: Lieu.David@epa.gov. SUPPLEMENTARY INFORMATION: I. General Information 40 CFR Part 180 [EPA–HQ–OPP–2012–0469; FRL–9387–8] Environmental protection, Administrative practice and procedure, Agricultural commodities, Pesticides and pests, Reporting and recordkeeping requirements. VerDate Mar<15>2010 Dated: May 29, 2013. Lois Rossi, Director, Registration Division, Office of Pesticide Programs. Sfmt 4700 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 E:\FR\FM\05JNR1.SGM 05JNR1

Agencies

[Federal Register Volume 78, Number 108 (Wednesday, June 5, 2013)]
[Rules and Regulations]
[Pages 33744-33748]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-13267]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2012-0704; FRL-9386-9]


Sedaxane; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: This regulation establishes tolerances for residues of 
sedaxane in or on multiple commodities which are identified and 
discussed later in this document. Syngenta Crop Protection, LLC 
requested these tolerances under the Federal Food, Drug, and Cosmetic 
Act (FFDCA).

DATES: This regulation is effective June 5, 2013. Objections and 
requests for hearings must be received on or before August 5, 2013, and 
must be filed in accordance with the instructions provided in 40 CFR 
part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).

ADDRESSES: The docket for this action, identified by docket 
identification (ID) number EPA-HQ-OPP-2012-0704, is available at https://www.regulations.gov or at the Office of Pesticide Programs Regulatory 
Public Docket (OPP Docket) in the Environmental Protection Agency 
Docket Center (EPA/DC), EPA West Bldg., Rm. 3334, 1301 Constitution 
Ave. NW., Washington, DC 20460-0001. The Public Reading Room is open 
from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal 
holidays. The telephone number for the Public Reading Room is (202) 
566-1744, and the telephone number for the OPP Docket is (703) 305-
5805. Please review the visitor instructions and additional information 
about the docket available at https://www.epa.gov/dockets.

FOR FURTHER INFORMATION CONTACT: Heather Garvie, Registration Division 
(7505P), Office of Pesticide Programs, Environmental Protection Agency, 
1200 Pennsylvania Ave. NW., Washington, DC 20460-0001; telephone 
number: (703) 308-0034; email address: garvie.heather@epa.gov.

SUPPLEMENTARY INFORMATION: 

I. General Information

A. Does this action apply to me?

    You may be potentially affected by this action if you are an 
agricultural producer, food manufacturer, or pesticide manufacturer. 
The following list of North American Industrial Classification System 
(NAICS) codes is not intended to be exhaustive, but rather provides a 
guide to help readers determine whether this document applies to them. 
Potentially affected entities may include:
     Crop production (NAICS code 111).
     Animal production (NAICS code 112).
     Food manufacturing (NAICS code 311).
     Pesticide manufacturing (NAICS code 32532).

B. How can I get electronic access to other related information?

    You may access a frequently updated electronic version of EPA's 
tolerance regulations at 40 CFR part 180 through the Government 
Printing Office's e-CFR site at https://www.ecfr.gov/cgi-bin/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title40/40tab_02.tpl.

C. How can I file an objection or hearing request?

    Under FFDCA section 408(g), 21 U.S.C. 346a, any person may file an 
objection to any aspect of this regulation and may also request a 
hearing on those objections. You must file your objection or request a 
hearing on this regulation in accordance with the instructions provided 
in 40 CFR part 178. To ensure proper receipt by EPA, you must identify 
docket ID number EPA-HQ-OPP-2012-0704 in the subject line on the first 
page of your submission. All objections and requests for a hearing must 
be in writing, and must be received by the Hearing Clerk on or before 
August 5, 2013. 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-2012-0704, by one of 
the following methods:
     Federal eRulemaking Portal: https://www.regulations.gov. 
Follow the online instructions for submitting comments. Do not submit 
electronically any information you consider to be CBI or other 
information whose disclosure is restricted by statute.
     Mail: OPP Docket, Environmental Protection Agency Docket 
Center (EPA/DC), (28221T), 1200 Pennsylvania Ave. NW., Washington, DC 
20460-0001.
     Hand Delivery: To make special arrangements for hand 
delivery or delivery of boxed information, please follow the 
instructions at https://www.epa.gov/dockets/contacts.htm. Additional 
instructions on commenting or visiting the docket, along with more 
information about dockets generally, is available at https://www.epa.gov/dockets.

II. Summary of Petitioned-For Tolerance

    In the Federal Register of September 28, 2012 (77 FR 59578) (FRL-
9364-6), 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 
2F8071) by Syngenta Crop Protection, Inc., Regulatory Affairs, P.O. Box 
18300, Greensboro, NC 27419-8300. The petition requested that 40 CFR 
180.665 be amended by establishing tolerances for residues of the 
fungicide sedaxane, in or on corn (grain, forage, stover), popcorn 
(grain, stover), and corn ears at 0.01 parts per million (ppm); sorghum 
(grain, forage, stover) at 0.01 ppm; pea and bean, dried, shelled, 
subgroup 6C (grain, forage, hay) at 0.01 ppm; and rapeseed, subgroup 
20A (grain) at 0.01 ppm. That document referenced a

[[Page 33745]]

summary of the petition prepared by Syngenta Crop Protection, Inc., the 
registrant, which is available in the docket, https://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 has 
corrected commodity definitions and recommended additional tolerances. 
The reasons for these changes are 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 sedaxane including exposure 
resulting from the tolerances established by this action. EPA's 
assessment of exposures and risks associated with sedaxane follows.

A. Toxicological Profile

    EPA has evaluated the available toxicity data and considered its 
validity, completeness, and reliability as well as the relationship of 
the results of the studies to human risk. EPA has also considered 
available information concerning the variability of the sensitivities 
of major identifiable subgroups of consumers, including infants and 
children. The toxicological effects reported in the submitted animal 
studies such as mitochondrial disintegration and glycogen depletion in 
the liver are consistent with the pesticidal mode of action also being 
the mode of toxic action in mammals. The rat is the most sensitive 
species tested, and the main target tissue for sedaxane is the liver. 
Sedaxane also caused thyroid hypertrophy/hyperplasia. In the acute 
neurotoxicity (ACN) and sub-chronic neurotoxicity (SCN) studies, 
sedaxane caused decreased activity, decreased muscle tone, decreased 
rearing and decreased grip strength.
    There are indications of reproductive toxicity in rats at the high 
dose, but these effects did not result in reduced fertility. In the 
rat, no adverse effects in fetuses were seen in developmental toxicity 
studies at maternally toxic doses. However, in the rabbit, fetal 
toxicity was observed at the same doses as the dams. Offspring effects 
in the reproduction study occurred at the same doses causing parental 
effects, thus there was no quantitative increase in sensitivity in rat 
pups. Sedaxane is tumorigenic in the liver in the rat and mouse, and 
led to tumors in the thyroid and uterus in the rat and was classified 
as ``likely to be carcinogenic to humans.'' Sedaxane was negative in 
the mutagenicity studies. The 28-day dermal study did not show systemic 
toxicity at the limit dose of 1,000 milligrams/kilogram/day (mg/kg/
day). Sedaxane has low acute toxicity by the oral, dermal, and 
inhalation routes. It is not a dermal sensitizer, causes no skin 
irritation and only slight eye irritation.
    Specific information on the studies received and the nature of the 
adverse effects caused by sedaxane as well as the no-observed-adverse-
effect-level (NOAEL) and the lowest-observed-adverse-effect-level 
(LOAEL) from the toxicity studies are discussed in the final rule 
published in the Federal Register of June 20, 2012 (77 FR 36919) (FRL-
9345-8).

B. Toxicological Points of Departure/Levels of Concern

    Once a pesticide's toxicological profile is determined, EPA 
identifies toxicological points of departure (POD) and levels of 
concern to use in evaluating the risk posed by human exposure to the 
pesticide. For hazards that have a threshold below which there is no 
appreciable risk, the toxicological POD is used as the basis for 
derivation of reference values for risk assessment. PODs are developed 
based on a careful analysis of the doses in each toxicological study to 
determine the dose at which no adverse effects are observed (the NOAEL) 
and the lowest dose at which adverse effects of concern are identified 
(the LOAEL). Uncertainty/safety factors are used in conjunction with 
the POD to calculate a safe exposure level--generally referred to as a 
population-adjusted dose (PAD) or a reference dose (RfD)--and a safe 
margin of exposure (MOE). For non-threshold risks, the Agency assumes 
that any amount of exposure will lead to some degree of risk. Thus, the 
Agency estimates risk in terms of the probability of an occurrence of 
the adverse effect expected in a lifetime. For more information on the 
general principles EPA uses in risk characterization and a complete 
description of the risk assessment process, see https://www.epa.gov/pesticides/factsheets/riskassess.htm.
    A summary of the toxicological endpoints for sedaxane used for 
human risk assessment is discussed in Unit III.B. of the final rule 
published in the Federal Register of June 20, 2012.

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to sedaxane, EPA considered exposure under the petitioned-for 
tolerances as well as all existing sedaxane tolerances in 40 CFR 
180.665. EPA assessed dietary exposures from sedaxane 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. Such effects were identified 
for sedaxane. In estimating acute dietary exposure, EPA used food 
consumption information from the U.S. Department of Agriculture (USDA) 
1994-1996 and 1998 Nationwide Continuing Surveys of Food Intake by 
Individuals (CSFII). As to residue levels in food, EPA conducted a 
highly conservative acute dietary risk assessment which used tolerance 
level residues and assumed 100 percent crop treated (PCT) for all 
commodities.
    ii. Chronic exposure. In conducting the chronic dietary exposure 
assessment, EPA used the food consumption data from the USDA 1994-1996 
and 1998 CSFII. As to residue levels in food, EPA conducted a highly 
conservative chronic dietary risk assessment which used tolerance level 
residues and assumed 100 PCT for all commodities.
    iii. Cancer. EPA determines whether quantitative cancer exposure 
and risk assessments are appropriate for a food-use pesticide based on 
the weight of the evidence from cancer studies and other relevant data. 
If a quantitative cancer risk assessment is appropriate, cancer risk 
may be quantified using a linear or nonlinear approach. If sufficient

[[Page 33746]]

information on the carcinogenic mode of action is available, a 
threshold or nonlinear approach is used and a cancer RfD is calculated 
based on an earlier non-cancer key event. If carcinogenic mode of 
action data are not available, or if the mode of action data determines 
a mutagenic mode of action, a default linear cancer slope factor 
approach is utilized. Based on significant tumor increases in two 
adequate rodent carcinogenicity studies and as noted in Unit III.A., 
EPA has concluded that sedaxane should be classified as ``Likely To Be 
Carcinogenic to Humans.'' EPA used a linear approach to quantify cancer 
risk because mode of action data are not available for sedaxane. EPA 
assessed exposure for the purpose of estimating cancer risk assuming 
tolerance-level residues and 100 PCT for all commodities and included 
modeled drinking water estimates.
    iv. Anticipated residue PCT information. EPA did not use 
anticipated residue and/or PCT information in the dietary assessment 
for sedaxane. One-hundred PCT was assumed for all food commodities.
    2. Dietary exposure from drinking water. The Agency used screening 
level water exposure models in the dietary exposure analysis and risk 
assessment for sedaxane in drinking water. These simulation models take 
into account data on the physical, chemical, and fate/transport 
characteristics of sedaxane. Further information regarding EPA drinking 
water models used in pesticide exposure assessment can be found at 
https://www.epa.gov/oppefed1/models/water/index.htm.
    Based on the FQPA First Index Reservoir Screening Tool (FIRST) and 
Tier II Pesticide Root Zone Model/Groundwater (PRZM-GW Version 1.0, 12/
11/2012), the estimated drinking water concentrations (EDWCs) of 
sedaxane for acute exposures are estimated to be 4.1 parts per billion 
(ppb) for surface water and 9.9 ppb for ground water. The water 
exposures for the chronic dietary and cancer assessments are estimated 
to be 1.2 ppb for surface water and 8.4 ppb for ground water.
    Modeled estimates of drinking water concentrations were directly 
entered into the dietary exposure model. For acute dietary risk 
assessment, the water concentration value of 9.9 ppb was used to assess 
the contribution to drinking water. For chronic and cancer dietary risk 
assessment, the water concentration value of 8.4 ppb was used to assess 
the contribution to drinking water.
    3. From non-dietary exposure. The term ``residential exposure'' is 
used in this document to refer to non-occupational, non-dietary 
exposure (e.g., for lawn and garden pest control, indoor pest control, 
termiticides, and flea and tick control on pets). Sedaxane 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 sedaxane 
to share a common mechanism of toxicity with any other substances. For 
the purposes of this tolerance action, therefore, EPA has assumed that 
sedaxane does not have a common mechanism of toxicity with other 
substances. For information regarding EPA's efforts to determine which 
chemicals have a common mechanism of toxicity and to evaluate the 
cumulative effects of such chemicals, see EPA's Web site at https://www.epa.gov/pesticides/cumulative.

D. Safety Factor for Infants and Children

    1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA 
shall apply an additional tenfold (10X) margin of safety for infants 
and children in the case of threshold effects to account for prenatal 
and postnatal toxicity and the completeness of the database on toxicity 
and exposure unless EPA determines based on reliable data that a 
different margin of safety will be safe for infants and children. This 
additional margin of safety is commonly referred to as the Food Quality 
Protection Act (FQPA) Safety Factor (SF). In applying this provision, 
EPA either retains the default value of 10X, or uses a different 
additional safety factor when reliable data available to EPA support 
the choice of a different factor.
    2. Prenatal and postnatal sensitivity. There is no evidence for 
increased susceptibility following prenatal and/or postnatal exposures 
to sedaxane based on effects seen in developmental toxicity studies in 
rabbits or rats. There was no evidence of increased susceptibility in a 
2-generation reproduction study in rats following prenatal or postnatal 
exposure to sedaxane. Clear NOAELs/LOAELs were established for the 
developmental effects seen in rats and rabbits as well as for the 
offspring effects seen in the 2-generation reproduction study. The 
dose-response relationship for the effects of concern is well 
characterized. The NOAEL used for the acute dietary risk assessment (30 
mg/kg/day), based on effects observed in the ACN study, is protective 
of the developmental and offspring effects seen in rabbits and rats 
(NOAELs of 100-200 mg/kg/day).
    In addition, there is no evidence of neuropathology or 
abnormalities in the development of the fetal nervous system from the 
available toxicity studies conducted with sedaxane.
    3. Conclusion. EPA has determined that reliable data show the 
safety of infants and children would be adequately protected if the 
FQPA SF were reduced to 1x. That decision is based on the following 
findings:
    i. The toxicity database for sedaxane is complete.
    ii. The sedaxane toxicology database did not demonstrate evidence 
of neurotoxicity. Although sedaxane caused changes in endpoints such as 
decreased activity, decreased muscle tone, decreased rearing and 
decreased grip strength in the ACN study and reduced locomotor activity 
in the SCN study, EPA believes these effects do not support a finding 
that sedaxane is a neurotoxicant. The observed effects in the ACN and 
SCN studies were likely secondary to inhibition of mitochondrial energy 
production, which is the pesticidal mode of action for sedaxane. 
Furthermore, there was no corroborative neuro-histopathology 
demonstrated in any study, even at the highest doses tested (i.e., 
2,000 mg/kg/day). Therefore, based on its chemical structure, its 
pesticidal mode of action, and lack of evidence of neuro-histopathology 
in any acute and repeated-dose toxicity study, sedaxane does not 
demonstrate potential for neurotoxicity. Since sedaxane did not 
demonstrate increased susceptibility to the young or specific 
neurotoxicity, a developmental neurotoxicity (DNT) study is not 
required.
    iii. There is no evidence that sedaxane results in increased 
susceptibility in in utero rats or rabbits in the prenatal 
developmental studies or in young rats in the 2-generation reproduction 
study.
    iv. There are no residual uncertainties identified in the exposure 
databases. The dietary food exposure assessments were performed based 
on 100 PCT and tolerance-level residues. EPA made conservative 
(protective) assumptions in the ground and surface water modeling used 
to assess exposure to sedaxane in drinking water. These assessments 
will not underestimate the exposure and risks posed by sedaxane.

[[Page 33747]]

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.
    Sedaxane is a member of the pyrazole carboxamide fungicides. 
Metabolic processes involving cleavage of the linkage between the 
pyrazole and phenyl rings of these compounds have the potential to 
produce common pyrazole-metabolites. Indeed, confined rotational crops 
studies for sedaxane and isopyrazam demonstrate that low levels of 
three common metabolites form. However, due to the low levels of these 
compounds in rotational crops (<=0.01 ppm), and low concerns about 
their potential toxicity relative to parent molecules, any risks from 
aggregation of exposures to common metabolites across chemicals will be 
insignificant.
    1. Acute risk. Using the exposure assumptions discussed in this 
unit for acute exposure, the acute dietary exposure from food and water 
to sedaxane will occupy <1% of the aPAD for all populations.
    2. Chronic risk. Using the exposure assumptions described in this 
unit for chronic exposure, EPA has concluded that chronic exposure to 
sedaxane from food and water will utilize <1% of the cPAD for all 
populations. There are no residential uses for sedaxane.
    3. Short- and intermediate-term risk. Short- and intermediate-term 
aggregate exposure takes into account short- and intermediate-term 
residential exposure plus chronic exposure to food and water 
(considered to be a background exposure level). Short- and 
intermediate-term adverse effects were identified; however, sedaxane is 
not registered for any use patterns that would result in short- or 
intermediate-term residential exposures. Because there is no short- or 
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 short-term risk), no 
further assessment of short- or intermediate-term risk is necessary, 
and EPA relies on the chronic dietary risk assessment for evaluating 
short- and intermediate-term risk for sedaxane.
    4. Aggregate cancer risk for U.S. population. The Agency has 
classified sedaxane as ``Likely to be Carcinogenic to Humans'' based on 
significant tumor increases in two adequate rodent carcinogenicity 
studies. Accordingly, a cancer dietary risk assessment was conducted, 
indicating a risk estimate of 1 x 10-6 for the U.S. 
population.
    5. Determination of safety. Based on these risk assessments, EPA 
concludes that there is a reasonable certainty that no harm will result 
to the general population, or to infants and children from aggregate 
exposure to sedaxane residues.

IV. Other Considerations

A. Analytical Enforcement Methodology

    Adequate enforcement methodology is available to enforce the 
tolerance expression. A modification of the Quick, Easy, Cheap, 
Effective, Rugged, and Safe (QuEChERS) method was developed for the 
determination of residues of sedaxane (as its isomers SYN508210 and 
SYN508211) in/on various crops. A successful independent laboratory 
validation (ILV) study was also conducted on the modified QuEChERS 
method using samples of wheat green forage and wheat straw fortified 
with SYN508210 and SYN508211 at 0.005 and 0.05 ppm. The analytical 
standard for sedaxane, with an expiration date of June 30, 2014, is 
currently available in the EPA National Pesticide Standards Repository. 
The method may be requested from: Chief, Analytical Chemistry Branch, 
Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD 20755-5350; 
telephone number: (410) 305-2905; email address: 
residuemethods@epa.gov.

B. International Residue Limits

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

C. Revisions to Petitioned-For Tolerances

    The Agency determined that the application of sedaxane to sweet 
corn (resulting in residues on corn, sweet, kernel plus cob with husks 
removed) would result in residues to the livestock feedstuffs corn, 
sweet, forage and corn, sweet, stover; therefore, EPA is establishing 
tolerances of 0.01 ppm for those commodities. EPA is also correcting 
commodity definitions for the tolerances.

V. Conclusion

    Therefore, tolerances are established for residues of sedaxane, 
including its metabolites and degradates in or on corn, field, forage; 
corn, field, grain; corn, field, stover; corn, pop, grain; corn, pop, 
stover; corn, sweet, forage; corn, sweet, kernel plus cob with husks 
removed; corn, sweet, stover; pea and bean, dried shelled, except 
soybean, subgroup 6C; rapeseed, subgroup 20A; sorghum, grain, forage; 
sorghum, grain, grain; sorghum, grain, stover; and vegetable, foliage 
of legume, except soybean, subgroup 7A, all at a tolerance level of 
0.01 ppm.

VI. Statutory and Executive Order Reviews

    This final rule establishes tolerances 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 final rule has 
been exempted from review under Executive Order 12866, this final rule 
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 final rule does not contain 
any information collections subject to OMB approval under the Paperwork 
Reduction Act (PRA) (44 U.S.C. 3501 et seq.), nor does it require any 
special considerations under Executive Order 12898, entitled ``Federal 
Actions To Address Environmental Justice in Minority Populations and 
Low-Income Populations'' (59 FR 7629, February 16, 1994). Since 
tolerances and exemptions

[[Page 33748]]

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 final rule directly regulates growers, food processors, food 
handlers, and food retailers, not States or tribes, nor does this 
action alter the relationships or distribution of power and 
responsibilities established by Congress in the preemption provisions 
of 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 final rule. In addition, 
this final rule does not impose any enforceable duty or contain any 
unfunded mandate as described under Title II of the Unfunded Mandates 
Reform Act of 1995 (UMRA) (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 of 1995 (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: May 29, 2013.
Lois Rossi,
Director, Registration Division, Office of Pesticide Programs.

    Therefore, 40 CFR chapter I is amended as follows:

PART 180--[AMENDED]

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

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


0
2. In Sec.  180.665, add alphabetically the following commodities to 
the table in paragraph (a) to read as follows:


Sec.  180.665  Sedaxane; tolerances for residues.

    (a) * * *

------------------------------------------------------------------------
                                                              Parts per
                         Commodity                             million
------------------------------------------------------------------------
 
                                * * * * *
Corn, field, forage........................................         0.01
Corn, field, grain.........................................         0.01
Corn, field, stover........................................         0.01
Corn, pop, grain...........................................         0.01
Corn, pop, stover..........................................         0.01
Corn, sweet, forage........................................         0.01
Corn, sweet, kernel plus cob with husks removed............         0.01
Corn, sweet, stover........................................         0.01
 
                                * * * * *
Pea and bean, dried shelled, except soybean, subgroup 6C...         0.01
Rapeseed, subgroup 20A.....................................         0.01
 
                                * * * * *
Sorghum, grain, forage.....................................         0.01
Sorghum, grain, grain......................................         0.01
Sorghum, grain, stover.....................................         0.01
 
                                * * * * *
Vegetable, foliage of legume, except soybean, subgroup 7A..         0.01
 
                                * * * * *
------------------------------------------------------------------------

* * * * *
[FR Doc. 2013-13267 Filed 6-4-13; 8:45 am]
BILLING CODE 6560-50-P
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