Chlorpyrifos

Quick Resources

Team Leader: Tom Myers (myers.tom@epa.gov), 703-308-8589
Press Contact: Dale Kemery (kemery.dale@epa.gov), 202-564-4355

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]

Docket Information

EPA-HQ-OPP-2007-1005
EPA-HQ-OPP-2008-0850
EPA-HQ-OPP-2011-0104
Visit Regulations.gov for information about other pesticide registration review chemicals.

Case Status:

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

Endangered Species

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.

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