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Methyl Iodide Registration
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On March 21, 2012, DPR cancelled all products containing methyl iodide at the request of the registrant.
Final registration decision and related information
- DPR Announces Decision to Register
Methyl Iodide with Most Stringent Restrictions in the Nation - news
release (12/01/2010)
- About DPR’s Decision to Register Methyl Iodide (PDF, 198 kb) - fact sheet
- Frequently asked questions (PDF, 22 kb)
- Comparing DPR’s proposed restrictions with those in other states (PDF, 28 kb)
- Detailed comparison of federal product label, California label, and related laws and regulations (PDF, 122 kb)
- The Permit Process for Restricted Pesticides (PDF, 122 kb) - fact sheet
- Statement (PDF, 43 kb) by Mary-Ann Warmerdam, Director, Department of Pesticide Regulation, before the Assembly Committees on Environmental Safety & Toxic Materials and Health, February 22, 2011
- Notice of Final Decision to
Register Pesticide Products Containing Methyl
Iodide and Written Evaluation (12/1/2010)
- Methyl Iodide Mitigation Evaluation and Options (PDF, 125 kb) - April 29, 2010 memorandum from staff to Environmental Monitoring Branch Chief John Sanders
- Duration of Tarping for Methyl Iodide Applications (PDF, 246 kb) - April 29, 2010 memorandum from staff to Environmental Monitoring Branch Chief John Sanders
- Memorandum (PDF, 302 kb) (December 1, 2010) from DPR Director Mary-Ann Warmerdam to the Central Coast Regional Water Quality Control Board, responding to June 2010 comment letter
- Final Methyl Iodide Evaluation Document (PDF, 468 kb) - November 24, 2010, memorandum from Assistant Director Marylou Verder-Carlos to Ann Prichard, Registration Branch Chief
- Regulations designating methyl iodide as a restricted material, listing it as a toxic air contaminant and use restrictions as a volatile organic compound
Proposed decision and related information
- DPR Announces Proposed Decision to Register Methyl Iodide, Using Nation’s Most Stringent Restrictions - news release (April 30, 2010)
- DPR Director Testifies that the Department’s Proposed
Registration Decision on Methyl Iodide is More Health Protective than U.S. EPA’s Decision (Media
advisory, June 17, 2010)
- Statement (PDF, 43 kb) by Mary-Ann Warmerdam,
Director, Department of Pesticide Regulation, before the Senate Committee on Food and Agriculture, June 17,
2010 (includes methyl iodide timeline and risk management decision framework)
- Statement (PDF, 43 kb) by Mary-Ann Warmerdam,
Director, Department of Pesticide Regulation, before the Senate Committee on Food and Agriculture, June 17,
2010 (includes methyl iodide timeline and risk management decision framework)
- Notice of Proposed Decisions to
Register Pesticide Products Containing Methyl Iodide and Public Report
(PDF, 340 kb) (April 30, 2010)
- Notice extending public comment (PDF, 394 kb) (May 19, 2010)
Risk assessment process and related information
- Notice regarding initiation of risk assessment (PDF, 119 kb) (August 2004)
- Risk characterization process, including draft and final risk characterization documents, external peer review workshop and report, and public comments.
- Methyl Iodide Risk
Assessment Will Undergo External Review - news release (July 2009)
- "Why DPR Opted for an External Peer Review of Methyl Iodide" (PDF, 106 kb) August 2009 Director’s op-ed