July 1, 2011: Chlorpyrifos Preliminary Human Health Risk Assessment - EPA has completed and is seeking public comment on a preliminary human health risk assessment for chlorpyrifos. The comment period has been extended to October 6, 2011. Please submit comments to docket EPA-HQ-OPP-2008-0850. [Federal Register Notice, August 24, 2011] - [Federal Register Notice, July 6, 2011]
- Chlorpyrifos: Preliminary Human Health Risk Assessment for Registration Review
- Revised Chlorpyrifos Preliminary Registration Review Drinking Water Assessment
- Reader's Guide to the Preliminary Human Health Risk Assessment for Chlorpyrifos
- Visit Regulations.gov for information about other pesticide registration review chemicals.
- Docket Opening:
- Chlorpyrifos Summary Document - March 12, 2009
- Registration Review; Pesticide Dockets Opened for Review and Comment , [March 18, 2009] - comment period closed on May 18, 2009
- Case Development: Underway
- Atrazine, Chloroneb, Chlorpyrifos, Clofencet, Endosulfan, et al.; Tolerance Actions (Final Rule) [September 14, 2011]
- Atrazine, Chloroneb, Chlorpyrifos, Clofencet, Endosulfan, et al.; Proposed Tolerance Actions [May 4, 2011], comments accepted through July 5, 2011
- FIFRA Scientific Advisory Panel; Notice of Public Meeting [December 8, 2010], comments accepted through January 31, 2011.
- FIFRA Scientific Advisory Panel; Notice of Cancellation of Public Meeting - October 15, 2010
- FIFRA Scientific Advisory Panel; Notice of Rescheduled Public Meeting [September 15, 2010], comments accepted through October 26, 2010
- Chlorpyrifos Final Work Plan - September 2009
- Registration Review Decision: Pending
- 5/7/2010: Manufacturers Decline to Adopt Pesticide Use Limitations to Protect Endangered Species (PDF) (3 pp, 163k, about PDF)
- 4/29/2010: EPA Gives Pesticide Manufacturers Two Weeks to Commit to Modifications to Protect Endangered Species (PDF)
- 9/11/2009: New Limitations on Pesticide Uses Will Protect Salmon - EPA has announced plans to place additional limitations on the use of three organophosphate pesticides -- chlorpyrifos, diazinon, and malathion -- to protect endangered and threatened salmon and steelhead in California, Idaho, Oregon and Washington.