Agricultural Worker Protection Standard Compliance Dates

December 14, 2015 1:56 PM
Blog Post

On November 2, 2015, the U.S. Environmental Protection Agency (EPA) published the final rule of the Agricultural Worker Protection Standard (WPS) regulation. Due to the major changes in the regulation, EPA is allowing extra time for employers, trainers, and regulators to adjust to the new requirements, as well as time for the development of updated training materials. To accomplish this, EPA added the new revisions to the end of the existing regulation. Until 2017 the existing regulations will remain in effect with no changes. EPA intends to delete the existing regulations once compliance of the revised regulations is implemented.

WPS Implementation Timeline

Date Compliance
January 2, 2016 Revised WPS final rule is effective. Compliance of existing WPS rules is required (Subparts A, B and C of 40 CFR Part 170)
January 2, 2017 Compliance is required with MOST of the revised WPS regulations (Subparts D, E, F and G of 40 CFR Part 170) 
January 2, 2018

Compliance is required with ALL of the revised WPS requirements (Subparts D, E, F and G of 40 CFR Part 170)
-Including new content on pesticide safety information display (170.311(a)(3))
-Covering new content in worker and handler training (170.401(c)(3) and  170.501(c)(3))
-Suspension of applications by handlers if anyone is in the application exclusion zone (170.505(c)(3))

A table summarizing the key provisions in EPA’s current WPS regulation and the 2015 revisions is available at:

For more information on the WPS revisions, visit:


Elizabeth Danielson Extension Program Specialist III

Betsy Danielson is an extension program specialist for Iowa State University Extension and Outreach. She is part of the Pesticide Safety Education Program (PSEP), conducts pesticide applicator training focusing on seed treatment and fumigation, and develops resource materials for e...