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Organophosphate Pesticide; Availability of Interim Risk Management Decision Document

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Information about this document as published in the Federal Register.

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This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.

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Environmental Protection Agency (EPA).




This notice announces the availability of the interim risk management decision document for an organophosphate pesticide, pirimiphos-methyl. This decision document has been developed as part of the public participation process that EPA and the United States Department of Agriculture (USDA) are now using for involving the public in the reassessment of pesticide tolerances under the Food Quality Protection Act (FQPA), and the reregistration of individual organophosphate pesticides under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA).


The interim risk management decision document is available in the OPP docket under docket control number OPP-34168B.

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Lorilyn Montford, Special Review and Reregistration Division (7508C), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460; telephone number: (703) 308-8170; e-mail address:

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I. General Information

A. Does this Action Apply to Me?

This action is directed to the public in general, nevertheless, a wide range of stakeholders will be interested in obtaining the interim risk management decision document for pirimiphos-methyl, including environmental, human health, and agricultural advocates; the chemical industry; pesticide users; and members of the public interested in the use of pesticides on food. Since other entities also may be interested, the Agency has not attempted to describe all the specific entities that may be affected by this action. If you have any questions regarding the applicability of this action to a particular entity, consult the person listed under FOR FURTHER INFORMATION CONTACT.

B. How Can I Get Additional Information, Including Copies of this Document and Other Related Documents?

1. Electronically. You may obtain electronic copies of this document, and certain other related documents that might be available electronically, from the EPA Internet home page at​. On the home page select “Laws and Regulations,” “Regulations and Proposed Rules,” and then look up the entry for this document under the “Federal Register—Environmental Documents.” You can also go directly to the Federal Register listings at​fedrgstr/​. In addition, copies of the pesticide interim risk management decision documents released to the public may also be accessed at​pesticides/​reregistration/​status.htm.

2. In person. The Agency has established an official record for this action under docket control numbers OPP-34168B. The official record consists of the documents specifically referenced in this action, and other information related to this action, including any information claimed as Confidential Business Information (CBI). This official record includes the documents that are physically located in the docket, as well as the documents that are referenced in those documents. The public version of the official record does not include any information claimed as CBI. The public version of the official record, which includes printed, paper versions of any electronic comments submitted during an applicable comment period is available for inspection in the Public Information and Records Integrity Branch (PIRIB), Rm. 119, Crystal Mall #2, 1921 Jefferson Davis Hwy., Arlington, VA, from 8:30 a.m. to 4 p.m., Monday through Friday, excluding legal holidays. The PIRIB telephone number is (703) 305-5805.

III. What Action is the Agency Taking?

EPA has assessed the risks of pirimiphos-methyl and reached an Interim Reregistration Eligibility Decision (IRED) for this organophosphate pesticide. Provided that risk mitigation measures are adopted, pirimiphos-methyl fits into its own risk cup; its individual aggregate risks are within acceptable levels. Pirimiphos-methyl is used primarily on stored corn, sorghum grain, and seed, in cattle ear tags and for the fogging treatment of iris bulbs. Pirimiphos-methyl residues in food alone do not pose risk concerns. With mitigation reducing worker exposure to pirimiphos-methyl by requiring closed mixing and loading systems for admixture grain and seed treatment, and requiring additional personal protective equipment for workers, risk will not be of concern. Pirimiphos-methyl ecological risks are also below the Agency's level of concern.

The interim risk management decision documents for pirimiphos-methyl were made available through the organophosphate pesticide pilot public participation process, which increases transparency and maximizes stakeholder involvement in EPA's development of risk assessments and risk management decisions. The pilot public participation process was developed as part of the EPA-USDA Tolerance Reassessment Advisory Committee (TRAC), which was established in April 1998, as a subcommittee under the auspices of EPA's National Advisory Council for Environmental Policy and Technology. A goal of the pilot public participation process is to find a more effective way for the public to participate at critical junctures in the Agency's development of organophosphate pesticide risk assessments and risk management decisions. EPA and USDA began Start Printed Page 59422implementing this pilot process in August 1998, to increase transparency and opportunities for stakeholder consultation.

EPA worked extensively with affected parties to reach the decisions presented in the interim risk management decision documents, which conclude the pilot public participation process for pirimiphos-methyl. As part of the pilot public participation process, numerous opportunities for public comment were offered as these interim risk management decision documents were being developed. The pirimiphos-methyl interim risk management decision documents therefore are issued in final, without a formal public comment period. The docket remains open, however, and any comments submitted in the future will be placed in the public docket.

The risk assessments for pirimiphos-methyl were released to the public through a notice published in the Federal Register of January 8, 1999 (64 FR 1199) (FRL-6055-9), and March 29, 2000 (65 FR 16592) (FRL-6551-5).

EPA's next step under FQPA is to complete a cumulative risk assessment and risk management decision for the organophosphate pesticides, which share a common mechanism of toxicity. The interim risk management decision documents on pirimiphos-methyl cannot be considered final until this cumulative assessment is complete.

When the cumulative risk assessment for the organophosphate pesticides has been completed, EPA will issue its final tolerance reassessment decision(s) for pirimiphos-methyl and further risk mitigation measures may be needed.

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List of Subjects

  • Environmental protection
  • Chemicals
  • Pesticides and pests
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Dated: November 16, 2001.

Lois A. Rossi,

Director, Special Review and Reregistration Division, Office of Pesticide Programs.

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[FR Doc. 01-29559 Filed 11-27-01; 8:45 am]