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Atrazine
Chemical Review Manager: Melanie Biscoe
(biscoe.melanie@epa.gov) 703-305-7106 
Docket Information
- Documents related to EPA's review of this pesticide can be found in the following docket EPA-HQ-OPP-2003-0367
- Risk assessment and related documents for this pesticide have been removed to Special Docket EPA-HQ-OPP-2007-0151.
- Visit Regulations.gov for information about other pesticide reregistration chemicals.
Atrazine Updates
- Initial results are available from the new programs and activities required by EPA's Atrazine Reregistration Eligibility Decision (RED)(PDF) (12 pp, 108 KB).
Decision Documents
- October 31, 2003 Revised Atrazine IRED (PDF) (16 pp, 680 KB, About PDF)
- IRED
Appendices (1.6 MB ZIP file - may be expanded with Winzip
) - IRED Q and A's
- IRED Press Announcement
- Watershed Sites for Ecological Monitoring (PDF) (1 pg, 50 KB, About PDF)
- Geographical Images for Watershed Sites for Ecological Monitoring (PDF) (4 pg, 408.6 KB, About PDF)
- Atrazine Ecological Exposure Flowing Water Chemical Monitoring Study in Vulnerable Watersheds: Study Protocol (PDF) (15 pg, 343.8 KB, About PDF)
- Atrazine Ecological Exposure Flowing Water Chemical Monitoring Study in Vulnerable Watersheds Interim Report: Watershed Selection Process (PDF) (57 pp, 5.33 MB, About PDF)
- Atrazine IRED - January 2003 ( 304 pp, 685.5 KB, About PDF)
- IRED Appendix B (PDF) (15 pp, 106 KB, About PDF)
- Memorandum of Agreement (PDF) (36 pp, 132 KB, About PDF)
- Guidance Letter for Formulators of End-Use Products Containing Atrazine (PDF) (8 pp, 95 KB, About PDF)
- January 31, 2003 Press Release: "EPA Adopts Aggressive Measures on Herbicide Atrazine - Approach Ensures Protection of Nation's most Vulnerable Drinking Water Sources"
- Atrazine IRED Questions and Answers (January 31, 2003)
- Slides from April 16, 2002 Technical Briefing Agenda (PDF) (2 pp, 63 KB, About PDF)
- Registration Review: Atrazine is tentatively scheduled to begin registration review in 2013. See Registration Review Web page.
Federal Register Notices
- Amitraz, Atrazine, Ethephon, Ferbam, Lindane, Propachlor, and Simazine; Proposed Tolerance Actions, [June 13, 2007], comments accepted through August 13, 2007
- FIFRA SAP Meeting re: Potential Effects of Atrazine on Amphibian Gonadal Development (April 4, 2007) - comment period closed on May 4, 2007
- F.R. Notice announcing open comment period - comment period closed on February 5, 2004
- F.R. Notice Vol. 67, Number 87, Pages 30379-30380 - comment period closed on July 5, 2002
- F.R. Notice Vol. 66, Number 31, Pages 10287-10289 - comment period closed on April 16, 2001
- F.R. Notice announcing open comment period - comment period closed on November 26, 2001