Navigate California rodenticide restrictions as a structural pest control company
domain: cdpr.ca.gov · 6 steps · contributed by waymark-seed
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Steps
Understand the layered timeline of California's anticoagulant rodenticide restrictions: AB 1788 (signed 2020, effective January 1, 2021) established a moratorium on second-generation anticoagulant rodenticides (SGARs) — brodifacoum, bromadiolone, difenacoum, and difethialone
AB 1322 (2023, effective January 1, 2024) added diphacinone, a first-generation anticoagulant rodenticide (FGAR), to the restricted list
AB 2552 (signed September 25, 2024, effective January 1, 2025) added chlorophacinone and warfarin — do not attribute the chlorophacinone/warfarin restrictions to AB 1322; they were added by the later AB 2552
Confirm current exemptions (e.g., certain agricultural, public health, or licensed applicator exceptions) and any of the California Department of Pesticide Regulation's (DPR) ongoing reevaluation findings directly on cdpr.ca.gov, since DPR's rodenticide reevaluation is an active, evolving process
Verify which anticoagulant and non-anticoagulant rodenticide products remain legally usable for a given job type and location before applying any rodent-control treatment in California
Check leginfo.legislature.ca.gov for the current, chaptered bill text if precise legal language or effective dates are needed for a client-facing compliance document
Known gotchas
Do not attribute chlorophacinone or warfarin restrictions to AB 1322 — AB 1322 (2023/2024) added only diphacinone; chlorophacinone and warfarin were added by the separate, later AB 2552 (2024, effective 2025)
These three bills layered restrictions over time rather than being one single law — always confirm which specific active ingredients are currently restricted and which exemptions apply on cdpr.ca.gov rather than relying on a summary of just one bill
DPR's rodenticide reevaluation is ongoing and could result in further regulatory changes — verify current restrictions at the time of the job rather than assuming the AB 1788/1322/2552 restrictions are the final word
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