Imazapyr; Pesticide Tolerances

Federal Register, Volume 79 Issue 68 (Wednesday, April 9, 2014)

Federal Register Volume 79, Number 68 (Wednesday, April 9, 2014)

Rules and Regulations

Pages 19485-19487

From the Federal Register Online via the Government Printing Office

FR Doc No: 2014-07694




40 CFR Part 180

EPA-HQ-OPP-2010-0957; FRL-9907-82

Imazapyr; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.


SUMMARY: This regulation establishes tolerances for residues of imazapyr in or on soybean, meal at 4.5 ppm; and soybean, seed at 4.0 ppm. BASF Corporation requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).

DATES: This regulation is effective April 9, 2014. Objections and requests for hearings must be received on or before June 9, 2014, 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-2010-0957, is available at 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

FOR FURTHER INFORMATION CONTACT: Lois Rossi, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460-0001; telephone number: (703) 305-7090; email address:


  1. General Information

    1. 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).

    2. 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

    3. 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-2010-0957 in the subject line on the first page of your submission. All objections and requests for a hearing must be in writing, and must be received by the Hearing Clerk on or before June 9, 2014. Addresses for mail and hand delivery of objections and hearing requests are provided in 40 CFR 178.25(b).

      Page 19486

      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-2010-0957, 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 20460-0001.

      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

  2. Summary of Petitioned-For Tolerance

    In the Federal Register of February 4, 2011 (76 FR 6465) (FRL-8858-

    7), 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 0E7793) by BASF Corporation, 26 Davis Drive, Research Triangle Park, NC 27709. The petition requested that 40 CFR 180.500 be amended by establishing tolerances for residues of the herbicide, imazapyr, 2-


    pyridinecarboxylic acid, in or on soybean, meal at 4.5 ppm; and soybean, seed at 4.0 ppm. That document referenced a summary of the petition prepared by BASF Corporation, the registrant, which is available in the docket, There were no comments received in response to the notice of filing.

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

    In 2003, EPA quantitatively assessed the risk of imazapyr tolerances in connection with the final rule published in the Federal Register of September 26, 2003 (68 FR 55475) (FRL-7321-4) establishing tolerances for imazapyr in or on grass, forage; grass, hay; fish; shellfish; fats of cattle, sheep, goats, and horses; kidney of cattle, sheep, goats, and horses; meat byproducts (except kidney) of cattle, sheep, goats, and horses; meat of cattle, sheep, goats, and horses; and milk. At that time, EPA determined that the aggregate risks from exposure to imazapyr were minimal. In reviewing the current tolerance petition, EPA determined that the toxicity database for imazapyr is complete and no additional studies are needed. EPA also determined that the toxicity data identified no hazard from imazapyr regardless of the route of exposure or the species tested. In the absence of evidence of neurotoxicity, immunotoxicity, genotoxicity, carcinogenicity, or other acute or chronic toxicity in conjunction with no adverse developmental or reproductive effects, the Agency concluded that a quantitative risk assessment for imazapyr was no longer needed and that EPA could determine based on a qualitative assessment of the imazapyr database that the proposed import tolerances are safe. This conclusion is supported by the findings in the last risk assessment, which were based on conservative (protective) toxicity endpoints showing only negligible aggregate exposures and risks identified from dietary, residential, and swimming and occupational routes. As indicated in this unit, EPA has determined that this prior quantitative assessment overstated risk because the current toxicology database shows no evidence of adverse effects from exposure to imazapyr. Because EPA is not quantitatively assessing the risk of imazapyr based on a reliance on the use of safety factors, EPA has not retained the additional safety factor described in FFDCA section 408(b)(2)(C) for the protection of infants and children.

    Therefore, based on EPA's qualitative assessment of the imazapyr risk and the prior quantitative risk assessment discussed in the final rule published in the Federal Register of September 26, 2003, 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 imazapyr and its metabolites or degradates.

  4. Other Considerations

    1. Analytical Enforcement Methodology

      Adequate enforcement methodology (liquid chromatography with tandem mass spectrometric detection (LC/MS/MS) is available to enforce the tolerance expression.

      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:

    2. 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.

      Page 19487

      The Codex has not established MRLs for imazapyr on soybean.

  5. Conclusion

    Therefore, tolerances are established for residues of imazapyr, 2-


    pyridinecarboxylic acid, in or on soybean, meal at 4.5 ppm; and soybean, seed at 4.0 ppm.

  6. 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 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).

  7. 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: March 27, 2014.

    Lois Rossi,

    Director, Registration Division, Office of Pesticide Programs.

    Therefore, 40 CFR chapter I is amended as follows:



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

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


    2. In Sec. 180.500, revise the introductory text of paragraph (a) and add alphabetically the following commodities to the table in paragraph (a) to read as follows:

    Sec. 180.500 Imazapyr; tolerances for residues.

    (a) General. Tolerances are established for residues of the herbicide, imazapyr, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only the residues of imazapyr 2-4,5-dihydro-4-methyl-4-(1-

    methylethyl)-5-oxo-1H-imidazol-2-yl-3-pyridinecarboxylic acid.


    Commodity Parts per million


    * * * * *

    Soybean, meal \1\.................................... 4.5

    Soybean, seed \1\.................................... 4.0

    * * * * *


    \1\ There are no U.S. registrations.

    * * * * *

    FR Doc. 2014-07694 Filed 4-8-14; 8:45 am

    BILLING CODE 6560-50-P

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