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Pesticide Registration

Reduced Risk and Organophosphate Alternative Decisions for Conventional Pesticides

Updated June 2018

Reduced risk pesticides are described in the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA section 3(c)(10)), which establishes an expedited review for applications for registration and amendments to registrations for pesticides that "may reasonably be expected to accomplish one or more of the following:

  • Reduce the risks of pesticides to human health.
  • Reduce the risks of pesticides to nontarget organisms.
  • Reduce the potential for contamination of groundwater, surface water or other valued environmental resources.
  • Broaden the adoption of integrated pest management strategies, or make such strategies more available or more effective."

Pesticide Registration Notice 97-3, Guidelines for Expedited Review of Conventional Pesticides under the Reduced-Risk Initiative and for Biological Pesticides, describes the review process and lists characteristics of acceptable and unacceptable submissions for the reduced-risk initiative.

OP alternative status is described in PR Notice 98-7, Changes to Registration Priority System Involving OP Alternatives and Reduced-Risk Candidates. OP alternative status was not considered by the Reduced Risk Program for conventional pesticides until FY 1999.

Information about the Table Contents

Pesticide Type

  • F= fungicide,
  • H= herbicide,
  • I= insecticide,
  • PGR= plant growth regulator,
  • Re= repellent,
  • Ro= rodenticide

Reduced Risk/OP alternative:

  • RR=reduced risk,
  • OP Alt.=organophosphate alternative

New active ingredient reduced risk/OP alternative actions are  indicated by italics in the "Chemical" column.

*In some instances in the table, the date listed might actually refer to the Federal Register tolerance publication date.

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