On May 16, 2025, the Department of Pesticide Regulation (DPR) published a Notice of Proposed Regulatory Action in the California Regulatory Notice Register. This proposed action would update the list of pesticides that have the potential to pollute groundwater; remove pesticides unlikely to pollute groundwater; replace the specific numerical values for determining what pesticides have the potential to pollute groundwater with a new multivariate method; specify which pesticides have had a hearing as described in Food and Agricultural Code section 13150(b); and make aligning changes to operator identification number and pesticide use reporting requirements.
Any interested person may present comments in writing about the proposed action. Written comments must be received no later than June 30, 2025. To submit comments on this rulemaking via DPR's online comment portal, please see the Commenter Instructions below. To submit comments on this rulemaking via U.S. Mail or facsimile (FAX), please refer to the Notice of Proposed Action.
For additional information about this rulemaking, please visit DPR's website.
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