美国豁免2-丙烯酸与乙酸乙酯、苯乙烯、丙烯酸-2-乙基己酯和2-丙烯酸乙酯的聚合物的残留限量要求(2-Propenoic acid, polymer With ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2- Tolerance Exemption)
核心提示：日，美国EPA发布一则最终条例，其规定：当2-丙烯酸与乙酸乙酯、苯乙烯、丙烯酸-2-乙基己酯和2-丙烯酸乙酯的聚合物用于化学农药制剂的佐剂时，豁免其残留限量要求。
【发布单位】 EPA
【发布文号】
【发布日期】
【生效日期】
【废止日期】
【替代法规】
【效　　力】
【食品伙伴网解读】 日，美国EPA发布一则最终条例，其规定：当2-丙烯酸与乙酸乙酯、苯乙烯、丙烯酸-2-乙基己酯和2-丙烯酸乙酯的聚合物用于化学农药制剂的佐剂时，豁免其残留限量要求。
　　ACTION
　　Final Rule.
　　SUMMARY
　　This regulation establishes an exemption from the requirement of a tolerance for residues of 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2- when used as an inert ingredient in a pesticide chemical formulation. BASF Corporation submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate on food or feed commodities.
　　TABLE OF CONTENTS
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　　DATES:
　　ADDRESSES:
　　FOR FURTHER INFORMATION CONTACT:
　　SUPPLEMENTARY INFORMATION:
　　I. General Information
　　A. Does this action apply to me?
　　B. How can I get electronic access to other related information?
　　C. Can I file an objection or hearing request?
　　II. Background and Statutory Findings
　　III. Risk Assessment and Statutory Findings
　　IV. Aggregate Exposures
　　V. Cumulative Effects From Substances With a Common Mechanism of Toxicity
　　VI. Additional Safety Factor for the Protection of Infants and Children
　　VII. Determination of Safety
　　VIII. Other Considerations
　　A. Existing Exemptions From a Tolerance
　　B. Analytical Enforcement Methodology
　　IX. Conclusion
　　X. Statutory and Executive Order Reviews
　　XI. Congressional Review Act
　　List of Subjects in 40 CFR Part 180
　　PART 180&[AMENDED]
　　DATES:
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　　This regulation is effective March 18, 2015. Objections and requests for hearings must be received on or before May 18, 2015, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also Unit I.C. of the SUPPLEMENTARY INFORMATION).
　　ADDRESSES:
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　　The docket for this action, identified by docket identification (ID) number EPA-HQ-OPP-, is available at
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.
Constitution Ave. NW., Washington, DC . 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 .
　　FOR FURTHER INFORMATION CONTACT:
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　　Susan Lewis, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC ; main telephone number: (703) 305-7090; email address: .
　　SUPPLEMENTARY INFORMATION:
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　　I. General Information
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　　A. Does this action apply to me?
　　You may be potentially affected by this action if you are an agricultural producer, food manufacturer, or pesticide manufacturer. The following list of North American Industrial Classification System (NAICS) codes is not intended to be exhaustive, but rather provides a guide to help readers determine whether this document applies to them. Potentially affected entities may include:
　　Crop production (NAICS code 111).
　　Animal production (NAICS code 112).
　　Food manufacturing (NAICS code 311).
　　Pesticide manufacturing (NAICS code 32532).
　　B. How can I get electronic access to other related information?
　　You may access a frequently updated electronic version of 40 CFR part 180 through the Government Publishing Office's e-CFR site at .
　　C. 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- 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 May 18, 2015. Addresses for mail and hand delivery of objections and hearing requests are provided in 40 CFR 178.25(b).
　　In addition to filing an objection or hearing request with the Hearing Clerk as described in 40 CFR part 178, please submit a copy of the filing (excluding any Confidential Business Information (CBI)) for inclusion in the public docket. Information not marked confidential pursuant to 40 CFR part 2 may be disclosed publicly by EPA without prior notice. Submit the non-CBI copy of your objection or hearing request, identified by docket ID number EPA-HQ-OPP-, by one of the following methods.
　　Federal eRulemaking Portal: . 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 .
　　Hand Delivery: To make special arrangements for hand delivery or delivery of boxed information, please follow the instructions at .
　　Additional instructions on commenting or visiting the docket, along with more information about dockets generally, is available at .
　　II. Background and Statutory Findings
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　　In the Federal Register of January 28, 2015 (80 FR 4527) (FRL-9921-55), EPA issued a document pursuant to FFDCA section 408, 21 U.S.C. 346a, announcing the receipt of a pesticide petition (PP IN-10770) filed by BASF Corporation, 100 Park Avenue, Florham Park, NJ 07932. The petition requested that 40 CFR 180.960 be amended by establishing an exemption from the requirement of a tolerance for residues of 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2- CAS Reg. No. . That document included a summary of the petition prepared by the petitioner and solicited comments on the petitioner's request. The Agency did not receive any comments.
　　Section 408(c)(2)(A)(i) of FFDCA allows EPA to establish an exemption from the requirement for a tolerance (the legal limit for a pesticide chemical residue in or on a food) only if EPA determines that the exemption is &safe.& Section 408(c)(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 use 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 an exemption from the requirement of 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 . . .& and specifies factors EPA is to consider in establishing an exemption.
　　III. Risk Assessment and Statutory Findings
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　　EPA establishes exemptions from the requirement of a tolerance only in those cases where it can be shown that the risks from aggregate exposure to pesticide chemical residues under reasonably foreseeable circumstances will pose no appreciable risks to human health. In order to determine the risks from aggregate exposure to pesticide inert ingredients, the Agency considers the toxicity of the inert in conjunction with possible exposure to residues of the inert ingredient through food, drinking water, and through other exposures that occur as a result of pesticide use in residential settings. If EPA is able to determine that a finite tolerance is not necessary to ensure that there is a reasonable certainty that no harm will result from aggregate exposure to the inert ingredient, an exemption from the requirement of a tolerance may be established.
　　Consistent with FFDCA section 408(b)(2)(D), EPA has reviewed the available scientific data and other relevant information in support of this action and considered its validity, completeness and reliability and the relationship of this information 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. In the case of certain chemical substances that are defined as polymers, the Agency has established a set of criteria to identify categories of polymers expected to present minimal or no risk. The definition of a polymer is given in 40 CFR 723.250(b) and the exclusion criteria for identifying these low-risk polymers are described in 40 CFR 723.250(d).
　　2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate conforms to the definition of a polymer given in 40 CFR 723.250(b) and meets the following criteria that are used to identify low-risk polymers.
　　1. The polymer is not a cationic polymer nor is it reasonably anticipated to become a cationic polymer in a natural aquatic environment.
　　2. The polymer does contain as an integral part of its composition the atomic elements carbon, hydrogen, and oxygen.
　　3. The polymer does not contain as an integral part of its composition, except as impurities, any element other than those listed in 40 CFR 723.250(d)(2)(ii).
　　4. The polymer is neither designed nor can it be reasonably anticipated to substantially degrade, decompose, or depolymerize.
　　5. The polymer is manufactured or imported from monomers and/or reactants that are already included on the TSCA Chemical Substance Inventory or manufactured under an applicable TSCA section 5 exemption.
　　6. The polymer is not a water absorbing polymer with a number average molecular weight (MW) greater than or equal to 10,000 Daltons.
　　Additionally, the polymer also meets as required the following exemption criteria specified in 40 CFR 723.250(e).
　　7. The polymer's number average MW of &50,000 Daltons is greater than or equal to 10,000 Daltons. The polymer contains less than 2% oligomeric material below MW 500 and less than 5% oligomeric material below MW 1,000.
　　Thus, 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate meets the criteria for a polymer to be considered low risk under 40 CFR 723.250. Based on its conformance to the criteria in this unit, no mammalian toxicity is anticipatedfrom dietary, inhalation, or dermal exposure to 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate.
　　IV. Aggregate Exposures
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　　For the purposes of assessing potential exposure under this exemption, EPA considered that 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate could be present in all raw and processed agricultural commodities and drinking water, and that non-occupational non-dietary exposure was possible. The number average MW of 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate is &50,000 Daltons. Generally, a polymer of this size would be poorly absorbed through the intact gastrointestinal tract or through intact human skin. Since 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate conform to the criteria that identify a low-risk polymer, there are no concerns for risks associated with any potential exposure scenarios that are reasonably foreseeable. The Agency has determined that a tolerance is not necessary to protect the public health.
　　V. Cumulative Effects From Substances With a Common Mechanism of Toxicity
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　　Section 408(b)(2)(D)(v) of FFDCA requires that, when considering whether to establish, modify, or revoke a tolerance, the Agency consider &available information& concerning the cumulative effects of a particular pesticide's residues and &other substances that have a common mechanism of toxicity.&
　　EPA has not found 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate to share a common mechanism of toxicity with any other substances, and 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate does not appear to produce a toxic metabolite produced by other substances. For the purposes of this tolerance action, therefore, EPA has assumed that 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate 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 .
　　VI. Additional Safety Factor for the Protection of Infants and Children
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　　Section 408(b)(2)(C) of FFDCA provides that EPA shall apply an additional tenfold 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 data base unless EPA concludes that a different margin of safety will be safe for infants and children. Due to the expected low toxicity of 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate, EPA has not used a safety factor analysis to assess the risk. For the same reasons the additional tenfold safety factor is unnecessary.
　　VII. Determination of Safety
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　　Based on the conformance to the criteria used to identify a low-risk polymer, EPA concludes that there is a reasonable certainty of no harm to the U.S. population, including infants and children, from aggregate exposure to residues of 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate.
　　VIII. Other Considerations
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　　A. Existing Exemptions From a Tolerance
　　There are no existing exemptions from a tolerance for 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate polymers.
　　B. Analytical Enforcement Methodology
　　An analytical method is not required for enforcement purposes since the Agency is establishing an exemption from the requirement of a tolerance without any numerical limitation.
　　IX. Conclusion
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　　Accordingly, EPA finds that exempting residues of 2-Propenoic acid, polymer with ethenyl acetate, ethenylbenzene, 2-ethylhexyl 2-propenoate and ethyl 2-propenoate from the requirement of a tolerance will be safe.
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分子结构式
[[2-甲基-2丙烯酸、氯甲基环氧乙烷、苯乙烯、2-丙烯酸乙酯、4,4'-(1-甲基亚乙基)二酚]的聚合物与2-(二甲胺2-Propenoic acid, 2-methl-, polymer with (chloromethyl)oxirane, ethenylbenzene, ethyl 2-propenoate a无2-丙烯酸-2-乙基己酯、乙酸乙烯酯、2-丙烯酸乙酯和2-丙烯酰胺的聚合物2-Propenoic acid,2-ethylhexyl ester, polymer with ethenyl acetate, ethyl 2-propenoate and 2-propenam无2-丙烯酸乙酯与1,1-二氯乙烯的聚合物2-Propenoic acid, ethyl ester, polymer with 1,1-dichloroethene无(C5H8O2.C2H2Cl2)x2-丙烯酸乙酯与N-(1,1-二甲基乙基)-2-丙烯酰胺和1-乙烯基-2-吡咯烷酮的聚合物;2-丙烯酸乙酯、N-(1,1-二甲基2-Propenoic acid, ethyl ester, polymer with N-(1,1-dimethylethyl)-2-propenamide and 1-ethenyl-2-pyrr无(C7H13NO.C6H9NO.C5H8O2)x2-丙烯酸乙酯与N-(丁氧基甲基)-2-丙烯酰胺和苯乙烯的聚合物2-Propenoic acid, ethyl ester, polymer with N-(butoxymethyl)-2-propenamide and ethenylbenzene无(C8H15NO2.C8H8.C5H8O2)x2-丙烯酸乙酯与苯乙烯的聚合物2-Propenoic acid, ethyl ester, polymerBenzene, ethenyl-, polymer with ethyl 2-Ethyl acrylate polymer with styrene无(C8H8.C5H8O2)x2-丙烯酸乙酯与乙烯和2,5-呋喃二酮的聚合物2-Propenoic acid, ethyl ester, polymer with ethene and 2,5-poly(ethylene-co-ethyl acrylate-co-2-Propenoic acid,ethyl ester,polymer with ethene and 2,5-furandione无(C5H8O2.C4H2O3.C2H4)x2-丙烯酸乙酯与醋酸乙烯酯的聚合物;丙烯酸乙酯、醋酸乙烯酯的聚合物2-Propenoic acid, ethyl ester, polymer Acetic acid, ethenyl ester, 2-propenoic acid,Ethenyl acetate, polymer with ethyl 2-Ethenyl acetate,polymer with ethyl 2-propenoate无(C5H8O2.C4H6O2)x2-丙烯酸与2-丙烯酸丁酯、苯乙烯和2-丙烯酸乙酯的聚合物2-Propenoic acid, polymer with butyl 2-propenoate, ethenylbenzene and ethyl 2-propenoate无(C8H8.C7H12O2.C5H8O2.C3H4O2)x2-甲基-2-丙烯酸-2-羟乙酯与苯乙烯、丙烯酸-2-乙基己酯、2-丙烯酸乙酯和2-甲基-2-丙烯酸甲酯的聚合物2-Propenoic acid, 2-methy-, 2-ethyl hexyl ester, polymer with 2-ethylhexyl 2-propenoate, ethyl 2-met无2-甲基-2-丙烯酸甲酯与1,1-二氯乙烯、丙烯酸乙酯和丙烯酸的聚合物2-Propenoic acid, 2-methyl-, methyl ester, polymer with 1,1-dichloroethene, ethyl 2-propenoate and 2;Vinylidene chloride, acrylic acid, methyl methacrylate, ethyl acrylate polymer无(C5H8O2.C5H8O2.C3H4O2.C2H2Cl2)x2-甲基-2-丙烯酸甲酯与1,3-丁二烯、二乙烯苯、乙烯苯和2-丙烯酸乙酯的聚合物2-Propenoic acid, 2-methyl-, methyl ester, polymer with 1,3-butadiene, diethenylbenzene, ethenylbenz无(C10H10.C8H8.C5H8O2.C5H8O2.C4H6)x2-甲基-2-丙烯酸甲酯与1,3-丁二烯、乙烯苯和丙烯酸乙酯的聚合物2-Propenoic acid, 2-methyl-, methyl ester, polymer with 1,3-butadiene, ethenylbenzene and ethyl 2-pr无(C8H8.C5H8O2.C5H8O2.C4H6)x2-甲基-2-丙烯酸甲酯与2-丙烯酸丁酯、苯乙烯和2-丙烯酸乙酯的聚合物;丙烯酸丁酯、丙烯酸乙酯、苯乙烯、甲基2-Propenoic acid, 2-methyl-, methyl ester, polymer with butyl 2-propenoate, ethenylbenzene and ethyl无(C8H8.C7H12O2.C5H8O2.C5H8O2)x2-甲基-2-丙烯酸与2-丙烯酸丁酯、乙烯基苯、2-丙烯酸乙酯、2-甲基-2-丙烯酸-2-羟乙酯和2-甲基-2-丙烯酸甲酯2-Propenoic acid, 2-methyl-, polymer with butyl 2-propenoate, ethenylbenzene, ethyl 2-propenoate, 2-无(C8H8.C7H12O2.C6H10O3.C5H8O2.C5H8O2.C4H6O2)x2-甲基-2-丙烯酸与2-丙烯酸丁酯、乙烯基苯、2-丙烯酸乙酯、2-甲基-2-丙烯酸甲酯和单(2-甲基-2-丙烯酸)-1,2-2-Propenoic acid, 2-methyl-, polymer with butyl 2-propenoate, ethenylbenzene, ethyl 2-propenoate, me无(C8H8.C7H12O3.C7H12O2.C5H8O2.C5H8O2.C4H6O2)x苯乙烯与甲基丙烯酸甲酯、丙烯酸乙酯和甲基丙烯酸羟乙基酯的共聚物Styrene-Lmethyl methacrylate-ethyl acrylate-hydroxyethyl methacrylate copolymer无;2-甲基-2-丙烯酸与乙烯基苯和2-丙烯酸乙酯的聚合物2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene and ethyl 2-2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene and ethyl 2-methacrylic acid/ styrene/ ethyl acrylate resin无2-甲基-2-丙烯酸与乙烯基苯、2-丙烯酸乙酯、2-甲基-2-丙烯酸-2-羟乙酯和2-甲基-2-丙烯酸甲酯的聚合物2-Propenoic acid, 2-methyl-, polymer with ethenylbenzene, ethyl 2-propenoate, 2-hydroxyethyl 2-methyl-2-propenoate and methyl 2-methyl-2-propenoate无
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