EPA must retroactively validate all pesticide approvals using stricter toxicity standards.
H.R. 10145 — SOUND Pesticide Research Act · Filed by Nancy Mace (R-SC) · Introduced Aug 24, 2026 · Referred to committee
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What it does
This bill requires the EPA to base pesticide safety decisions on multigenerational reproductive toxicity studies spanning at least 4 generations of test animals, and to review all existing pesticide tolerances within 180 days to ensure they meet this new standard. The EPA must report to Congress within 2 years on which pesticide approvals were changed as a result.
Why we flagged it
The bill's operative mechanism is a data standard — requiring 4-generation reproductive toxicity studies before EPA can approve or maintain pesticide tolerances. This is a precautionary regulatory tightening, not a deregulation or industry carve-out.
What the text implies
- The 180-day review window is aggressive; EPA may lack capacity to re-evaluate hundreds of existing tolerances, potentially triggering automatic revocations or litigation over missed deadlines.
- Existing pesticides approved under older, less stringent standards may be retroactively invalidated if they lack 4-generation reproductive data, disrupting agricultural supply chains and potentially raising food prices.
The full analysis lists 4 implications of this text.
Who stands to gain
pesticide manufacturers with existing 4-generation reproductive toxicity data; contract research organizations conducting toxicology studies; organic and alternative-pest-control product manufacturers