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EPA Announces Improvements to Pesticide Application Exclusion Zone Requirements
By Lisa M. Campbell, Lisa R. Burchi, and Barbara A. Christianson
On October 30, 2020, the U.S. Environmental Protection Agency (EPA) issued a final rule on the Agricultural Worker Protection Standard (WPS) regulation that revises the requirements on the pesticide application exclusion zone (AEZ), defined as an “area surrounding the point(s) of pesticide discharge from the application equipment that must generally be free of all persons during pesticide applications.” According to EPA, the targeted changes improve the enforceability and workability of the AEZ requirements, decrease regulatory burdens for farmers, and maintain critical worker protections. EPA also states the revisions made to the AEZ are consistent with the 2018 Pesticide Registration Improvement Extension Act of 2018 (PRIA 4).
The final AEZ requirements will go into effect on December 29, 2020.
EPA initially promulgated the WPS regulation in 1992 under EPA’s Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) authorities to protect farm workers from pesticide exposures in production agriculture. According to EPA, “WPS is a uniform set of requirements for workers, handlers, and their employers that are generally applicable to all agricultural pesticides and are incorporated onto agricultural pesticide labels by reference. Its requirements complement the product-specific labeling restrictions and are intended to minimize occupational exposures generally.”
In 2015, EPA issued significant revisions to the 1992 WPS. Of particular significance, 2015 revisions included a new provision requiring agricultural employers to keep workers and all other individuals out of the AEZ during outdoor pesticide applications. The AEZ was set at 25 feet in all directions for ground pesticide applications when sprayed from a height greater than 12 inches, and 100 feet in all directions for outdoor aerial, air blast, air-propelled, fumigant, smoke, mist, and fog pesticide applications. This provision was controversial, however, with state regulators expressing concerns with enforcing the complex AEZ requirements and farm owners expressing concerns with applying and complying with pesticide regulations.
EPA states in the final rule that it clarified and simplified the AEZ requirements based in part on input from state pesticide regulatory agencies and agricultural stakeholders after the adoption of the 2015 WPS rule. Consistent with PRIA 4, EPA is implementing changes related only to the AEZ requirements in the WPS. These targeted changes include:
EPA states that many of the changes proposed in November 2019 were retained in the final rule. Changes that were made include the following:
The final rule is available at EPA-HQ-OPP-2017-0543. Additional information on the revisions to the AEZ requirements is available here.