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EPA has produced a vast collection of science-related documents to support pesticide registration decisions. Below you will find a subset of documents that, generally, have been requested by the public through the Freedom of Information Act (FOIA) process. Each of these documents has been reviewed to ensure that any proprietary information is not included.

If you wish to obtain a document that is not currently posted, you may do so by filing a FOIA request.

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  • 1 - 15 of 455
-Effects Determination for Chlorpyrifos and the California red-legged frog, Delta smelt, California tiger salamander, San Francisco garter snake, California clapper rail, Salt marsh harvest mouse, Bay checkerspot butterfly, Valley elderberry longhorn beetle, San Joaquin kit fox and California freshwater shrimp
 Additional ES Files Additional ES Files (California Red-legged Frog and other California Listed Species)
-Effects Determination for Chlorpyrifos
 Additional ES Files Additional ES Files
-Attached Data Evaluation Record, Chlorpyrifos: Two-Year Dietary Exposure Studies in Beagle Dogs. Tox Review 003822 excerpt (PDF, 8 pp, 461K)John QuestToxicology Branch-
-Evaluation of Applicator Exposure and Work Environment Impact Following Treatment of a Greenhouse with Dursban 50W (PDF, 7 pp, 313K)Curt LunchickExposure Assessment Branch-
11/06/2012Evaluation of Direct Flux Measurement of Chlorpyrifos and Chlorpyrifos-Oxon Emissions Following Applications ofLorsban Advanced Insecticide to Alfalfa (MRID 48883201) (PDF, 49 pp, 2MB)Rochelle F.H. BohatyEnvironmental Risk Branch III48883201
05/20/2011Chlorpyrifos: Review of the Comparative Cholinesterase (including chlorpyrifos oxon), special acute inhalation study and immunotoxicity studies. DP Barcode: D380055. Decision No.: 436952. TXR No.: 0055409. MRID Nos.: 48139301, 48139302, 48139303, 48139304 (PDF, 68 pp, 3MB)John DohertyRisk Assessment Branch V48139301... [More]
12/22/2010Product: Chemisco Roach Control. Reg. Number: 9688-67. Purpose: Provide efficacy data to support the addition of new marketing claims. DP Barcode: D384969. MRID: 48321301 (PDF, 4 pp, 704K)Kable Bo DavisEPA/OPP48321301
12/04/2007Non Guideline Processing Study. Processed Food and Feed - Home Cooking Studies in Various Foods. MRID No. 45619801. DP Barcode D282883. (PDF, 12 pp, 429K)David SoderbergReregistration Branch 3 HED-
09/30/2005CHEMSICO ROACH CONTROL; EPA Reg. No. 9688-67. DP Barcode: D321930. Purpose: Provide efficacy data to support deficiencies noted in an Agency efficacy review dated November 16,2004. MRID: 46615401, 46649401 (PDF, 4 pp, 794K)Kable Bo DavisEPA/OPP46615401... [More]
06/20/2000Update: Exposure Assessment for Chlorpyrifos Post Construction Termiticide Use; DP Barcode D266827, Case 818975. (PDF, 16 pp, 740K)Deborah SmegalReregistration Branch 3-
06/20/2000Occupational/Residential Handler and Postapplication Residential/Non-Occupational Risk Assessment for Chlorpyrifos. MRID: 40026001, 40094001, 43013501, 44167101, 44458201, 44444801, 44729401, 44729402, 44589001, 44739301. (PDF, 84 pp, 6MB)Deborah SmegalReregistration Branch, HED-
04/20/2000Chlorpyrifos incident review update, DP Barcode 263894, Chem. No. 059101, HED Review of MRID nos. 43480001, 44039901 44186301, 44245801, 1997 Epidemiology Panel Report, and 1995 critique of EPA's review of neuropathology allegations (PDF, 32 pp, 2MB)
 Additional Files Attachments
Jerome BlondellChemistry & Exposure Branch-
04/18/2000Toxicology Chapter for Chlorpyrifos. DP Barcode D263892, Case 818975, Submission S576466, PC Code 059101 (PDF, 53 pp, 183K)Deborah SmegalRe-Registration Branch 3 HED-
04/12/2000Occupational/Residential Handler and Postapplication Residential/Non-Occupational Risk Assessment for Chlorpyrifos. MRID: 40026001, 40094001, 43013501, 44167101, 44458201, 44444801, 44729401, 44729402, 44589001, 44739301. (PDF, 35 pp, 2MB)Deborah SmegalReregistration Branch, HED-
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