EPA Extending Comment Period on Chlorpyrifos Risk Assessment until April 30, 2015
For Release: March 13, 2015
EPA is extending the comment period on the revised human health risk assessment on chlorpyrifos by 45 days. The comment period will now close on April 30, 2015. To submit comments, go to docket EPA-HQ-OPP-2008-0850 at www.regulations.gov.
A number of commenters requested an extension to the comment period. EPA agreed to extend the comment period because of the complexity and length of the risk assessment. This revised human health risk assessment is one of the first assessments informed by physiologically based pharmacokinetic and pharmacodynamic (PBPK/PD) model and a new drinking water watershed approach. Read more information about the risk assessment.