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.
Wash. Admin. Code § 16-230-645
Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. 07-11-041A, § 16-230-645, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. 87-09-015 (Order 1923), § 16-230-645, filed 4/6/87; 80-03-041 (Order 1680), § 16-230-645, filed 2/20/80.