On November 2, 2015, the EPA revised the WPS, making significant changes to the rule’s requirements. Most of the revised provisions became effective January 2, 2017; there are four provisions that are delayed until January 2, 2018. This four-page document will address respirator use under the revised WPS. Written by Frederick M. Fishel and published by the Agronomy Department and the Pesticide Information Office.
http://edis.ifas.ufl.edu/pi272