Linuron; Pesticide Tolerances, 4196-4200 [2024-01109]

Download as PDF 4196 Federal Register / Vol. 89, No. 15 / Tuesday, January 23, 2024 / Rules and Regulations DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration 21 CFR Part 73 [Docket No. FDA–2020–C–2131] Listing of Color Additives Exempt From Certification; Jagua (GenipinGlycine) Blue; Confirmation of Effective Date AGENCY: Food and Drug Administration, HHS. Final rule; confirmation of effective date. ACTION: The Food and Drug Administration (FDA or we) is confirming the effective date of December 4, 2023, for the final rule that appeared in the Federal Register of November 3, 2023, and that amended the color additive regulations to provide for the safe use of jagua (genipinglycine) blue as a color additive in various food categories at levels consistent with good manufacturing practice. DATES: The effective date of December 4, 2023, for the final rule published in the Federal Register of November 3, 2023 (88 FR 75490) is confirmed. ADDRESSES: For access to the docket to read background documents or comments received, go to https:// www.regulations.gov and insert the docket number found in brackets in the heading of this final rule into the ‘‘Search’’ box and follow the prompts, and/or go to the Dockets Management Staff, 5630 Fishers Lane, Rm. 1061, Rockville, MD 20852. FOR FURTHER INFORMATION CONTACT: Shayla West-Barnette, Office of Food Additive Safety (HFS–255), Center for Food Safety and Applied Nutrition, Food and Drug Administration, 5001 Campus Dr., College Park, MD 20740, 240–402–1262. SUPPLEMENTARY INFORMATION: In the Federal Register of November 3, 2023 (88 FR 75490), we amended the color additive regulations to add § 73.225 (21 CFR 73.225), ‘‘Jagua (genipin-glycine) blue,’’ to provide for the safe use of jagua (genipin-glycine) blue as a color additive at levels consistent with good manufacturing practice in flavored milk; dairy drinks and substitutes; dairy and dairy alternative yogurt; ice cream, frozen dairy and dairy alternative desserts, puddings, gelatins, ices, sorbets; ready-to-eat multicolored cereals; flavored potato chips, tortilla, corn, and other chips; candy and chewing gum; non-alcoholic fruit based/ khammond on DSKJM1Z7X2PROD with RULES SUMMARY: VerDate Sep<11>2014 16:06 Jan 22, 2024 Jkt 262001 flavored drinks, nutritional beverages and smoothies; flavored cream cheesebased spreads; and icings, frostings, jams, syrups, and fruit toppings and fillings. We gave interested persons until December 4, 2023, to file objections or requests for a hearing. We received no objections or requests for a hearing on the final rule. Therefore, we find that the effective date of the final rule that published in the Federal Register of November 3, 2023, should be confirmed. List of Subjects in 21 CFR Part 73 Color additives, Cosmetics, Drugs, Foods, Medical devices. ■ Therefore, under the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 321, 341, 342, 343, 348, 351, 352, 355, 361, 362, 371, 379e) and under authority delegated to the Commissioner of Food and Drugs, we are giving notice that no objections or requests for a hearing were filed in response to the November 3, 2023, final rule. Accordingly, the amendments issued thereby became effective December 4, 2023. Dated: January 17, 2024. Lauren K. Roth, Associate Commissioner for Policy. [FR Doc. 2024–01106 Filed 1–22–24; 8:45 am] BILLING CODE 4164–01–P ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 180 [EPA–HQ–OPP–2022–0134; FRL–11402–01– OCSPP] Linuron; Pesticide Tolerances Environmental Protection Agency (EPA). ACTION: Final rule. AGENCY: This regulation establishes tolerances for residues of linuron in or on alfalfa, forage and alfalfa, hay. Tessenderlo Kerley, Inc. requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA). DATES: This regulation is effective January 23, 2024. Objections and requests for hearings must be received on or before March 25, 2024, 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–2022–0134, is available at https://www.regulations.gov or at the Office of Pesticide Programs Regulatory Public Docket (OPP Docket) SUMMARY: PO 00000 Frm 00032 Fmt 4700 Sfmt 4700 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 and OPP Docket is (202) 566–1744. Please review the visitor instructions and additional information about the docket available at https://www.epa.gov/dockets. FOR FURTHER INFORMATION CONTACT: Charles Smith, Director, Registration Division (7505T), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460–0001; main telephone number: (202) 566–1030; email address: RDFRNotices@epa.gov. SUPPLEMENTARY INFORMATION: I. General Information A. Does this action apply to me? You may be potentially affected by this action if you are an agricultural producer, food manufacturer, or pesticide manufacturer. The following list of North American Industrial Classification System (NAICS) codes is not intended to be exhaustive, but rather provides a guide to help readers determine whether this document applies to them. Potentially affected entities may include: • Crop production (NAICS code 111). • Animal production (NAICS code 112). • Food manufacturing (NAICS code 311). • Pesticide manufacturing (NAICS code 32532). B. How can I get electronic access to other related information? You may access a frequently updated electronic version of EPA’s tolerance regulations at 40 CFR part 180 through the Federal Register Office’s e-CFR site at https://www.ecfr.gov/current/title-40. 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–2022–0134 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 March E:\FR\FM\23JAR1.SGM 23JAR1 Federal Register / Vol. 89, No. 15 / Tuesday, January 23, 2024 / Rules and Regulations khammond on DSKJM1Z7X2PROD with RULES 25, 2024. 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– 2022–0134, 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. 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 March 22, 2022 (87 FR 16133) (FRL–9410–11– OCSPP), 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 1F8972) by Tessenderlo Kerley, Inc., 2910 N 44th Street, Suite 100, Phoenix, AZ 85018. The petition requested that 40 CFR 180.184 be amended by establishing tolerances for residues of the herbicide linuron, in or on alfalfa, forage and alfalfa, hay at 1.0 and 3.0 parts per million (ppm), respectively. That document referenced a summary of the petition prepared by Tessenderlo Kerley, Inc., the registrant, which is available in the docket, https:// www.regulations.gov. Comments were received on the notice of filing. EPA’s response to these comments is discussed in Unit IV.C. III. Aggregate Risk Assessment and Determination of Safety Section 408(b)(2)(A)(i) of FDCA allows EPA to establish a tolerance (the VerDate Sep<11>2014 16:06 Jan 22, 2024 Jkt 262001 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 linuron including exposure resulting from the tolerances established by this action. EPA’s assessment of exposures and risks associated with linuron 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 database for linuron is robust and the data requirements are satisfied. With repeated oral dosing in test animals, linuron produces three primary effects: (1) changes in the hematopoietic system in dogs, rats, and mice; (2) changes in the male reproductive system in developing rats; and (3) decreases in T3 and T4 levels detected in Endocrine Disruptor Screening Program (EDSP) Tier 1 screening assays in rats. Specific information on the studies received and the nature of the adverse effects caused by linuron 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 https://www.regulations.gov in document Linuron. Human Health Risk Assessment for a New Use on Alfalfa hereinafter ‘‘Linuron Human PO 00000 Frm 00033 Fmt 4700 Sfmt 4700 4197 Health Risk Assessment’’ in docket ID number EPA–HQ–OPP–2022–0134. 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 linuron used for human risk assessment is shown in the Linuron Human Health Risk Assessment on pages 16–17. C. Exposure Assessment 1. Dietary exposure from food and feed uses. In evaluating dietary exposure to linuron, EPA considered exposure under the petitioned-for tolerances as well as all existing linuron tolerances in 40 CFR 180.184. EPA assessed dietary exposures from linuron 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 linuron. In estimating acute dietary exposure, EPA used food consumption information from the United States Department of Agriculture (USDA) National Health and Nutrition Examination Survey, What We Eat in America, (NHANES/WWEIA). As to residue levels in food, EPA assumed E:\FR\FM\23JAR1.SGM 23JAR1 khammond on DSKJM1Z7X2PROD with RULES 4198 Federal Register / Vol. 89, No. 15 / Tuesday, January 23, 2024 / Rules and Regulations tolerance-level residues, 100% crop treated (PCT) and incorporated empirical processing factors and default processing factors. ii. Chronic exposure. In conducting the chronic dietary exposure assessment EPA used the food consumption data from the USDA NHANES/WWEIA. As to residue levels in food, EPA assumed tolerance-level residues, average PCT, and incorporated empirical processing factors and default processing factors. The chronic dietary analysis incorporated average PCT data for asparagus (15%), carrots (85%), celery (20%), corn (≤1.0%), cotton (≤1.0%), dry beans/peas (≤1.0%), potatoes (10%), grain sorghum (≤1.0%), soybeans (≤1.0%), and wheat (≤1.0%). iii. Cancer. Based on the data summarized in Unit III.A., EPA has concluded that linuron 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. Section 408(b)(2)(F) of FFDCA states that the Agency may use data on the actual percent of food treated for assessing chronic dietary risk only if: • Condition a: The data used are reliable and provide a valid basis to show what percentage of the food derived from such crop is likely to contain the pesticide residue. • Condition b: The exposure estimate does not underestimate exposure for any significant subpopulation group. • Condition c: Data are available on pesticide use and food consumption in a particular area, the exposure estimate does not understate exposure for the population in such area. In addition, the Agency must provide for periodic evaluation of any estimates used. To provide for the periodic evaluation of the estimate of PCT as required by FFDCA section 408(b)(2)(F), EPA may require registrants to submit data on PCT. In most cases, EPA uses available data from United States Department of Agriculture/National Agricultural Statistics Service (USDA/NASS), proprietary market surveys, and the National Pesticide Use Database for the chemical/crop combination for the most recent 6–7 years. EPA uses an average PCT for chronic dietary risk analysis. The average PCT figure for each existing use is derived by combining available public and private market survey data for that use, averaging across all observations, and rounding to the nearest 5%, except for those situations in which the average PCT is less than one. In those cases, 1% is used as the VerDate Sep<11>2014 16:06 Jan 22, 2024 Jkt 262001 average PCT and 2.5% is used as the maximum PCT. EPA uses a maximum PCT for acute dietary risk analysis. The maximum PCT figure is the highest observed maximum value reported within the recent 6 years of available public and private market survey data for the existing use and rounded up to the nearest multiple of 5%. The Agency believes that the three conditions discussed in Unit III.C.1.iv. have been met. With respect to Condition a, PCT estimates are derived from Federal and private market survey data, which are reliable and have a valid basis. The Agency is reasonably certain that the percentage of the food treated is not likely to be an underestimation. As to Conditions b and c, regional consumption information and consumption information for significant subpopulations is taken into account through EPA’s computer-based model for evaluating the exposure of significant subpopulations including several regional groups. Use of this consumption information in EPA’s risk assessment process ensures that EPA’s exposure estimate does not understate exposure for any significant subpopulation group and allows the Agency to be reasonably certain that no regional population is exposed to residue levels higher than those estimated by the Agency. Other than the data available through national food consumption surveys, EPA does not have available reliable information on the regional consumption of food to which linuron may be applied in a particular area. 2. Dietary exposure from drinking water. The Agency used screening level water exposure models in the dietary exposure analysis and risk assessment for linuron in drinking water. These simulation models take into account data on the physical, chemical, and fate/ transport characteristics of linuron. 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 Pesticide Water Calculator (PWC), a graphical user interface that runs the Pesticide Root Zone Model (PRZM, v 5, November 15, 2006), PRZM–GW, and the Variable Volume Water Body Model (VVWM, 3/ 6/2014), the estimated drinking water concentrations (EDWCs) of linuron for acute exposures are estimated to be 65 parts per billion (ppb) for surface water and 40 ppb for ground water, and those for chronic exposures for non-cancer assessments are estimated to be 47 ppb for surface water and 37 ppb for ground water. PO 00000 Frm 00034 Fmt 4700 Sfmt 4700 Modeled estimates of drinking water concentrations were directly entered into the dietary exposure model. For acute dietary risk assessment, the water concentration value of 65 ppb was used to assess the contribution to drinking water. For chronic dietary risk assessment, the water concentration of value 47 ppb was used to assess the contribution to drinking water. 3. From non-dietary exposure. The term ‘‘residential exposure’’ is used in this document to refer to nonoccupational, non-dietary exposure (e.g., for lawn and garden pest control, indoor pest control, termiticides, and flea and tick control on pets). Linuron 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 linuron to share a common mechanism of toxicity with any other substances, and linuron does not appear to produce a toxic metabolite produced by other substances. For the purposes of this tolerance action, therefore, EPA has assumed that linuron does not have a common mechanism of toxicity with other substances. For information regarding EPA’s efforts to determine which chemicals have a common mechanism of toxicity and to evaluate the cumulative effects of such chemicals, see EPA’s website at https:// www.epa.gov/pesticides/cumulative. D. Safety Factor for Infants and Children 1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA shall apply an additional tenfold (10X) margin of safety for infants and children in the case of threshold effects to account for prenatal and postnatal toxicity and the completeness of the database on toxicity and exposure unless EPA determines based on reliable data that a different margin of safety will be safe for infants and children. This additional margin of safety is commonly referred to as the Food Quality Protection Act (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. E:\FR\FM\23JAR1.SGM 23JAR1 khammond on DSKJM1Z7X2PROD with RULES Federal Register / Vol. 89, No. 15 / Tuesday, January 23, 2024 / Rules and Regulations 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 linuron is considered adequate. The requirement for the comparative thyroid assay that was required as part of the EDSP to evaluate the potential for increased sensitivity in the young was waived. As a result, the FQPA SF of 10X for linuron has been removed for all exposure routes and durations. ii. Although findings were observed in the acute neurotoxicity study, the concern for neurotoxicity is low since: (1) a clear NOAEL was established and is 5-fold lower than the dose causing potential neurotoxic effects; (2) the selected endpoints for risk assessment are protective of the observed neurotoxicity; (3) no corroborative neuropathology was associated at the LOAEL or higher dose in the acute neurotoxicity study; and (4) there were no other neurotoxic-like effects observed in the linuron database indicating the nervous system is not the most sensitive for linuron. iii. There is evidence of quantitative susceptibility in the two-generation reproduction toxicity study in rats and developmental effects, but not susceptibility, in the rat and rabbit developmental studies; however, concern is low since there are clear NOAELs established for the developmental and offspring effects and the selected endpoints are protective of these effects. iv. There are no residual uncertainties identified in the exposure databases. The acute dietary (food) exposure assessment utilized conservative upperbound inputs including assuming 100% of the registered crops treated, and tolerance-level residues for all commodities. The chronic dietary exposure assessment was partially refined, used tolerance-level residues for all commodities and average PCT estimates when available. The drinking water assessment utilized water concentration values generated by models and associated modeling parameters which are designed to produce conservative, health protective, high-end estimates of water concentrations which are not likely to be exceeded. The dietary (food and drinking water) exposure assessment does not underestimate the potential exposure for infants, children, or women of childbearing age. No residential uses are proposed or registered for linuron at this time, so no VerDate Sep<11>2014 16:06 Jan 22, 2024 Jkt 262001 residential exposure assessment was conducted. E. Aggregate Risks and Determination of Safety EPA determines whether acute and chronic dietary pesticide exposures are safe by comparing aggregate exposure estimates to the acute PAD (aPAD) and chronic PAD (cPAD). For linear cancer risks, EPA calculates the lifetime probability of acquiring cancer given the estimated aggregate exposure. Short-, intermediate-, and chronic-term risks are evaluated by comparing the estimated aggregate food, water, and residential exposure to the appropriate PODs to ensure that an adequate MOE exists. 1. Acute risk. Using the exposure assumptions discussed in this unit for acute exposure, the acute dietary exposure from food and water to linuron will occupy 9.5% of the aPAD for infants, the population group receiving the greatest exposure. 2. Chronic risk. Using the exposure assumptions described in this unit for chronic exposure, EPA has concluded that chronic exposure to linuron from food and water will utilize 84% of the cPAD for children 1–2 years old the population group receiving the greatest exposure. There are no residential uses for linuron. 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, linuron 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 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-term risk is necessary, and EPA relies on the chronic dietary risk assessment for evaluating short-term risk for linuron. 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, linuron is not registered for any use patterns that would result in intermediate-term residential exposure. Intermediate-term risk is assessed based on intermediate- PO 00000 Frm 00035 Fmt 4700 Sfmt 4700 4199 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 linuron. 5. Aggregate cancer risk for U.S. population. Linuron is considered a Group C carcinogen requiring no quantification of human cancer risk. 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 linuron residues. IV. Other Considerations A. Analytical Enforcement Methodology Adequate enforcement methods are available for the determination of linuron residues of concern in/on plant and livestock tissues. The current enforcement methods determine linuron and all metabolites hydrolyzable to 3,4dichloroaniline (3,4-DCA). 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 a MRL for linuron. E:\FR\FM\23JAR1.SGM 23JAR1 4200 Federal Register / Vol. 89, No. 15 / Tuesday, January 23, 2024 / Rules and Regulations C. Response to Comments EPA received one comment to the notice of filing from March 22, 2022, which opposed the use of linuron on any food. The commenter expressed a general opposition to the use of ‘‘toxic chemicals’’ on food. The Agency understands the commenter’s concerns and recognizes that some individuals believe that certain pesticide chemicals should not be permitted in our food. However, the existing legal framework provided by section 408 of the FFDCA states that tolerances may be set when the pesticide meets the safety standard imposed by that statute. The Agency is required by section 408 of the FFDCA to estimate the risk of the potential exposure to these residues. EPA has concluded, based on data submitted in support of the petition and other reliable data, that there is a reasonable certainty that no harm will result from aggregate human exposure to linuron residues from use on alfalfa. Testing requirements for pesticide tolerances have been specified by rulemaking after allowing for notice and comment by the public and peer review by appropriate scientific bodies. See 40 CFR part 158 for further information. V. Conclusion Therefore, tolerances are established for residues of linuron in or on alfalfa, forage and alfalfa, hay at 1 and 3 ppm. khammond on DSKJM1Z7X2PROD with RULES VI. Statutory and Executive Order Reviews This action 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 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 VerDate Sep<11>2014 16:06 Jan 22, 2024 Jkt 262001 Populations’’ (59 FR 7629, February 16, 1994). Since tolerances and exemptions that are established on the basis of a petition under FFDCA section 408(d), such as the tolerance in this final rule, do not require the issuance of a proposed rule, the requirements of the Regulatory Flexibility Act (RFA) (5 U.S.C. 601 et seq.), do not apply. This action directly regulates growers, food processors, food handlers, and food retailers, not States or tribes, nor does this action alter the relationships or distribution of power and responsibilities established by Congress in the preemption provisions of FFDCA section 408(n)(4). As such, the Agency has determined that this action will not have a substantial direct effect on States or tribal governments, on the relationship between the national government and the States or tribal governments, or on the distribution of power and responsibilities among the various levels of government or between the Federal Government and Indian tribes. Thus, the Agency has determined that Executive Order 13132, entitled ‘‘Federalism’’ (64 FR 43255, August 10, 1999), and Executive Order 13175, entitled ‘‘Consultation and Coordination with Indian Tribal Governments’’ (65 FR 67249, November 9, 2000), do not apply to this action. In addition, this action does not impose any enforceable duty or contain any unfunded mandate as described under Title II of the Unfunded Mandates Reform Act (UMRA) (2 U.S.C. 1501 et seq.). This action does not involve any technical standards that would require Agency consideration of voluntary consensus standards pursuant to section 12(d) of the National Technology Transfer and Advancement Act (NTTAA) (15 U.S.C. 272 note). Dated: November 7, 2023. Charles Smith, Director, Registration Division, Office of Pesticide Programs. VII. Congressional Review Act General Services Acquisition Regulation (GSAR); Standardizing Federal Supply Schedule Clause and Provision Prescriptions; Correction 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. PO 00000 Frm 00036 Fmt 4700 Sfmt 4700 Therefore, for the reasons stated in the preamble, EPA is amending 40 CFR chapter I as follows: PART 180—TOLERANCES AND EXEMPTIONS FOR PESTICIDE CHEMICAL RESIDUES IN FOOD 1. The authority citation for part 180 continues to read as follows: ■ Authority: 21 U.S.C. 321(q), 346a and 371. 2. In § 180.184, amend the table in paragraph (a) by: ■ a. Adding a heading for the table; and ■ b. Adding in alphabetical order the entries ‘‘Alfalfa, forage’’ and ‘‘Alfalfa, hay’’. The additions read as follows: ■ § 180.184 Linuron; tolerances for residues. (a) * * * TABLE 1 TO PARAGRAPH (a) Parts per million Commodity Alfalfa, forage ............................. Alfalfa, hay .................................. * * * * * * * * 1 3 * * [FR Doc. 2024–01109 Filed 1–22–24; 8:45 am] BILLING CODE 6560–50–P GENERAL SERVICES ADMINISTRATION 48 CFR Part 538 [GSAR Case 2022–G514; Docket No. 2023– 0009; Sequence No. 1] RIN 3090–AK58 Office of Acquisition Policy, General Services Administration (GSA). ACTION: Final rule; correction. AGENCY: On January 12, 2024, GSA published a final rule amending the General Services Administration Acquisition Regulation (GSAR) to clarify when GSAR clauses apply to Federal Supply Schedule contracts. Some text inadvertently appeared in a section revision. This correction removes that text. DATES: This correction is effective February 12, 2024. SUMMARY: E:\FR\FM\23JAR1.SGM 23JAR1

Agencies

[Federal Register Volume 89, Number 15 (Tuesday, January 23, 2024)]
[Rules and Regulations]
[Pages 4196-4200]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-01109]


=======================================================================
-----------------------------------------------------------------------

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[EPA-HQ-OPP-2022-0134; FRL-11402-01-OCSPP]


Linuron; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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

SUMMARY: This regulation establishes tolerances for residues of linuron 
in or on alfalfa, forage and alfalfa, hay. Tessenderlo Kerley, Inc. 
requested these tolerances under the Federal Food, Drug, and Cosmetic 
Act (FFDCA).

DATES: This regulation is effective January 23, 2024. Objections and 
requests for hearings must be received on or before March 25, 2024, 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-2022-0134, is available at 
https://www.regulations.gov or at the Office of Pesticide Programs 
Regulatory Public Docket (OPP Docket) in the Environmental Protection 
Agency Docket Center (EPA/DC), West William Jefferson Clinton Bldg., 
Rm. 3334, 1301 Constitution Ave. NW, Washington, DC 20460-0001. The 
Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through 
Friday, excluding legal holidays. The telephone number for the Public 
Reading Room and OPP Docket is (202) 566-1744. Please review the 
visitor instructions and additional information about the docket 
available at https://www.epa.gov/dockets.

FOR FURTHER INFORMATION CONTACT: Charles Smith, Director, Registration 
Division (7505T), Office of Pesticide Programs, Environmental 
Protection Agency, 1200 Pennsylvania Ave. NW, Washington, DC 20460-
0001; main telephone number: (202) 566-1030; 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 Federal Register 
Office's e-CFR site at https://www.ecfr.gov/current/title-40.

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-2022-0134 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 
March

[[Page 4197]]

25, 2024. 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-2022-0134, 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.
    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 March 22, 2022 (87 FR 16133) (FRL-9410-
11-OCSPP), 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 
1F8972) by Tessenderlo Kerley, Inc., 2910 N 44th Street, Suite 100, 
Phoenix, AZ 85018. The petition requested that 40 CFR 180.184 be 
amended by establishing tolerances for residues of the herbicide 
linuron, in or on alfalfa, forage and alfalfa, hay at 1.0 and 3.0 parts 
per million (ppm), respectively. That document referenced a summary of 
the petition prepared by Tessenderlo Kerley, Inc., the registrant, 
which is available in the docket, https://www.regulations.gov. Comments 
were received on the notice of filing. EPA's response to these comments 
is discussed in Unit IV.C.

III. Aggregate Risk Assessment and Determination of Safety

    Section 408(b)(2)(A)(i) of FDCA 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 linuron including exposure 
resulting from the tolerances established by this action. EPA's 
assessment of exposures and risks associated with linuron 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 database for linuron is robust and the data 
requirements are satisfied. With repeated oral dosing in test animals, 
linuron produces three primary effects: (1) changes in the 
hematopoietic system in dogs, rats, and mice; (2) changes in the male 
reproductive system in developing rats; and (3) decreases in 
T3 and T4 levels detected in Endocrine Disruptor 
Screening Program (EDSP) Tier 1 screening assays in rats. Specific 
information on the studies received and the nature of the adverse 
effects caused by linuron 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 https://www.regulations.gov in 
document Linuron. Human Health Risk Assessment for a New Use on Alfalfa 
hereinafter ``Linuron Human Health Risk Assessment'' in docket ID 
number EPA-HQ-OPP-2022-0134.

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 linuron used for human risk assessment is shown in the 
Linuron Human Health Risk Assessment on pages 16-17.

C. Exposure Assessment

    1. Dietary exposure from food and feed uses. In evaluating dietary 
exposure to linuron, EPA considered exposure under the petitioned-for 
tolerances as well as all existing linuron tolerances in 40 CFR 
180.184. EPA assessed dietary exposures from linuron 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 linuron. In estimating acute dietary exposure, EPA used food 
consumption information from the United States Department of 
Agriculture (USDA) National Health and Nutrition Examination Survey, 
What We Eat in America, (NHANES/WWEIA). As to residue levels in food, 
EPA assumed

[[Page 4198]]

tolerance-level residues, 100% crop treated (PCT) and incorporated 
empirical processing factors and default processing factors.
    ii. Chronic exposure. In conducting the chronic dietary exposure 
assessment EPA used the food consumption data from the USDA NHANES/
WWEIA. As to residue levels in food, EPA assumed tolerance-level 
residues, average PCT, and incorporated empirical processing factors 
and default processing factors. The chronic dietary analysis 
incorporated average PCT data for asparagus (15%), carrots (85%), 
celery (20%), corn (<=1.0%), cotton (<=1.0%), dry beans/peas (<=1.0%), 
potatoes (10%), grain sorghum (<=1.0%), soybeans (<=1.0%), and wheat 
(<=1.0%).
    iii. Cancer. Based on the data summarized in Unit III.A., EPA has 
concluded that linuron 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. 
Section 408(b)(2)(F) of FFDCA states that the Agency may use data on 
the actual percent of food treated for assessing chronic dietary risk 
only if:
     Condition a: The data used are reliable and provide a 
valid basis to show what percentage of the food derived from such crop 
is likely to contain the pesticide residue.
     Condition b: The exposure estimate does not underestimate 
exposure for any significant subpopulation group.
     Condition c: Data are available on pesticide use and food 
consumption in a particular area, the exposure estimate does not 
understate exposure for the population in such area.
    In addition, the Agency must provide for periodic evaluation of any 
estimates used. To provide for the periodic evaluation of the estimate 
of PCT as required by FFDCA section 408(b)(2)(F), EPA may require 
registrants to submit data on PCT.
    In most cases, EPA uses available data from United States 
Department of Agriculture/National Agricultural Statistics Service 
(USDA/NASS), proprietary market surveys, and the National Pesticide Use 
Database for the chemical/crop combination for the most recent 6-7 
years. EPA uses an average PCT for chronic dietary risk analysis. The 
average PCT figure for each existing use is derived by combining 
available public and private market survey data for that use, averaging 
across all observations, and rounding to the nearest 5%, except for 
those situations in which the average PCT is less than one. In those 
cases, 1% is used as the average PCT and 2.5% is used as the maximum 
PCT. EPA uses a maximum PCT for acute dietary risk analysis. The 
maximum PCT figure is the highest observed maximum value reported 
within the recent 6 years of available public and private market survey 
data for the existing use and rounded up to the nearest multiple of 5%.
    The Agency believes that the three conditions discussed in Unit 
III.C.1.iv. have been met. With respect to Condition a, PCT estimates 
are derived from Federal and private market survey data, which are 
reliable and have a valid basis. The Agency is reasonably certain that 
the percentage of the food treated is not likely to be an 
underestimation. As to Conditions b and c, regional consumption 
information and consumption information for significant subpopulations 
is taken into account through EPA's computer-based model for evaluating 
the exposure of significant subpopulations including several regional 
groups. Use of this consumption information in EPA's risk assessment 
process ensures that EPA's exposure estimate does not understate 
exposure for any significant subpopulation group and allows the Agency 
to be reasonably certain that no regional population is exposed to 
residue levels higher than those estimated by the Agency. Other than 
the data available through national food consumption surveys, EPA does 
not have available reliable information on the regional consumption of 
food to which linuron may be applied in a particular area.
    2. Dietary exposure from drinking water. The Agency used screening 
level water exposure models in the dietary exposure analysis and risk 
assessment for linuron in drinking water. These simulation models take 
into account data on the physical, chemical, and fate/transport 
characteristics of linuron. 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 Pesticide Water Calculator (PWC), a graphical user 
interface that runs the Pesticide Root Zone Model (PRZM, v 5, November 
15, 2006), PRZM-GW, and the Variable Volume Water Body Model (VVWM, 3/
6/2014), the estimated drinking water concentrations (EDWCs) of linuron 
for acute exposures are estimated to be 65 parts per billion (ppb) for 
surface water and 40 ppb for ground water, and those for chronic 
exposures for non-cancer assessments are estimated to be 47 ppb for 
surface water and 37 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 65 ppb was used to assess 
the contribution to drinking water. For chronic dietary risk 
assessment, the water concentration of value 47 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).
    Linuron 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 linuron 
to share a common mechanism of toxicity with any other substances, and 
linuron does not appear to produce a toxic metabolite produced by other 
substances. For the purposes of this tolerance action, therefore, EPA 
has assumed that linuron does not have a common mechanism of toxicity 
with other substances. For information regarding EPA's efforts to 
determine which chemicals have a common mechanism of toxicity and to 
evaluate the cumulative effects of such chemicals, see EPA's website at 
https://www.epa.gov/pesticides/cumulative.

D. Safety Factor for Infants and Children

    1. In general. Section 408(b)(2)(C) of FFDCA provides that EPA 
shall apply an additional tenfold (10X) margin of safety for infants 
and children in the case of threshold effects to account for prenatal 
and postnatal toxicity and the completeness of the database on toxicity 
and exposure unless EPA determines based on reliable data that a 
different margin of safety will be safe for infants and children. This 
additional margin of safety is commonly referred to as the Food Quality 
Protection Act (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.

[[Page 4199]]

    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 linuron is considered adequate. The 
requirement for the comparative thyroid assay that was required as part 
of the EDSP to evaluate the potential for increased sensitivity in the 
young was waived. As a result, the FQPA SF of 10X for linuron has been 
removed for all exposure routes and durations.
    ii. Although findings were observed in the acute neurotoxicity 
study, the concern for neurotoxicity is low since: (1) a clear NOAEL 
was established and is 5-fold lower than the dose causing potential 
neurotoxic effects; (2) the selected endpoints for risk assessment are 
protective of the observed neurotoxicity; (3) no corroborative 
neuropathology was associated at the LOAEL or higher dose in the acute 
neurotoxicity study; and (4) there were no other neurotoxic-like 
effects observed in the linuron database indicating the nervous system 
is not the most sensitive for linuron.
    iii. There is evidence of quantitative susceptibility in the two-
generation reproduction toxicity study in rats and developmental 
effects, but not susceptibility, in the rat and rabbit developmental 
studies; however, concern is low since there are clear NOAELs 
established for the developmental and offspring effects and the 
selected endpoints are protective of these effects.
    iv. There are no residual uncertainties identified in the exposure 
databases. The acute dietary (food) exposure assessment utilized 
conservative upper-bound inputs including assuming 100% of the 
registered crops treated, and tolerance-level residues for all 
commodities. The chronic dietary exposure assessment was partially 
refined, used tolerance-level residues for all commodities and average 
PCT estimates when available. The drinking water assessment utilized 
water concentration values generated by models and associated modeling 
parameters which are designed to produce conservative, health 
protective, high-end estimates of water concentrations which are not 
likely to be exceeded. The dietary (food and drinking water) exposure 
assessment does not underestimate the potential exposure for infants, 
children, or women of childbearing age. No residential uses are 
proposed or registered for linuron at this time, so no residential 
exposure assessment was conducted.

E. Aggregate Risks and Determination of Safety

    EPA determines whether acute and chronic dietary pesticide 
exposures are safe by comparing aggregate exposure estimates to the 
acute PAD (aPAD) and chronic PAD (cPAD). For linear cancer risks, EPA 
calculates the lifetime probability of acquiring cancer given the 
estimated aggregate exposure. Short-, intermediate-, and chronic-term 
risks are evaluated by comparing the estimated aggregate food, water, 
and residential exposure to the appropriate PODs to ensure that an 
adequate MOE exists.
    1. Acute risk. Using the exposure assumptions discussed in this 
unit for acute exposure, the acute dietary exposure from food and water 
to linuron will occupy 9.5% of the aPAD for infants, the population 
group receiving the greatest exposure.
    2. Chronic risk. Using the exposure assumptions described in this 
unit for chronic exposure, EPA has concluded that chronic exposure to 
linuron from food and water will utilize 84% of the cPAD for children 
1-2 years old the population group receiving the greatest exposure. 
There are no residential uses for linuron.
    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, linuron 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 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-term risk is necessary, and EPA relies on the 
chronic dietary risk assessment for evaluating short-term risk for 
linuron.
    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, 
linuron 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 
linuron.
    5. Aggregate cancer risk for U.S. population. Linuron is considered 
a Group C carcinogen requiring no quantification of human cancer risk.
    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 linuron residues.

IV. Other Considerations

A. Analytical Enforcement Methodology

    Adequate enforcement methods are available for the determination of 
linuron residues of concern in/on plant and livestock tissues. The 
current enforcement methods determine linuron and all metabolites 
hydrolyzable to 3,4-dichloroaniline (3,4-DCA). The method may be 
requested from: Chief, Analytical Chemistry Branch, Environmental 
Science Center, 701 Mapes Rd., Ft. Meade, MD 20755-5350; telephone 
number: (410) 305-2905; email address: [email protected].

B. International Residue Limits

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

[[Page 4200]]

C. Response to Comments

    EPA received one comment to the notice of filing from March 22, 
2022, which opposed the use of linuron on any food. The commenter 
expressed a general opposition to the use of ``toxic chemicals'' on 
food. The Agency understands the commenter's concerns and recognizes 
that some individuals believe that certain pesticide chemicals should 
not be permitted in our food. However, the existing legal framework 
provided by section 408 of the FFDCA states that tolerances may be set 
when the pesticide meets the safety standard imposed by that statute. 
The Agency is required by section 408 of the FFDCA to estimate the risk 
of the potential exposure to these residues. EPA has concluded, based 
on data submitted in support of the petition and other reliable data, 
that there is a reasonable certainty that no harm will result from 
aggregate human exposure to linuron residues from use on alfalfa. 
Testing requirements for pesticide tolerances have been specified by 
rulemaking after allowing for notice and comment by the public and peer 
review by appropriate scientific bodies. See 40 CFR part 158 for 
further information.

V. Conclusion

    Therefore, tolerances are established for residues of linuron in or 
on alfalfa, forage and alfalfa, hay at 1 and 3 ppm.

VI. Statutory and Executive Order Reviews

    This action 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 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 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: November 7, 2023.
Charles Smith,
Director, Registration Division, Office of Pesticide Programs.

    Therefore, for the reasons stated in the preamble, EPA is amending 
40 CFR chapter I as follows:

PART 180--TOLERANCES AND EXEMPTIONS FOR PESTICIDE CHEMICAL RESIDUES 
IN FOOD

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.  180.184, amend the table in paragraph (a) by:
0
a. Adding a heading for the table; and
0
b. Adding in alphabetical order the entries ``Alfalfa, forage'' and 
``Alfalfa, hay''.
    The additions read as follows:


Sec.  180.184  Linuron; tolerances for residues.

    (a) * * *

                        Table 1 to Paragraph (a)
------------------------------------------------------------------------
                                                               Parts per
                          Commodity                             million
------------------------------------------------------------------------
Alfalfa, forage.............................................           1
Alfalfa, hay................................................           3
 
                                * * * * *
------------------------------------------------------------------------

* * * * *
[FR Doc. 2024-01109 Filed 1-22-24; 8:45 am]
BILLING CODE 6560-50-P


This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.