Information on Warfarin
Find information on the registration status, continuous evaluation and mitigation measures in California to regulate this active ingredient. An active ingredient is the chemical that makes a pesticide work on a target pest.
Active Ingredient: Warfarin
Type of Pesticide: Rodenticide
California Registration: Yes
EPA Registration: Yes
Fumigant: No
California Restricted Material: Yes
Toxic Air Contaminant (TAC): No
Volatile Organic Compound (VOC): No
Potential Groundwater Contaminant: No
Reevaluation Status: No
Chemical Class: First-Generation Anticoagulant Rodenticide
DPR Chemical Code: 621
Risk Evaluation and Mitigation Documents
- Semiannual Report Summarizing the Reevaluation Status of Pesticide Products During the Period of July 1, 2025, through December 31, 2025
- September 2025 - Draft Proposed Regulations, Presentation, and Crosswalk of Current vs Proposed Restrictions – DPR Anticoagulant Rodenticide Mitigation Informal Public Workshop
- December 2024 - Enforcement Letter 24-20: Chlorophacinone and Warfarin: Restricted Material Status, Prohibitions, Allowed Uses, and Questions and Answers
- September 2024 - Bill Text, Pesticides: Anticoagulant Rodenticides