WAC 16-230-645. Evening cutoff for use restricted herbicides in eastern Washington

On and after May 1st through October 31st of each year, the application of use restricted herbicides is prohibited daily from three hours prior to sunset to sunrise the following morning: Provided, That if there is a mean sustained legal wind velocity of not less than five miles per hour the application of use restricted herbicides is allowed in Areas 3 and 4 up to one hour prior to sunset in all counties as restricted by rule except Benton, Franklin, Yakima, and Walla Walla counties.