Pesticide Safety

Washington State Department of Agriculture (WSDA)

The Pesticide Management Division of the Washington State Department of Agriculture is responsible for ensuring that pesticides are used safely and legally. To accomplish this responsibility, WSDA performs a number of activities including registering pesticide products in the state, licensing of pesticide users, consultants and dealers, investigating complaints of possible misuse of pesticides, maintaining a registry of pesticide sensitive individuals, and administering a waste pesticide collection program. These duties are performed under the authority of the Washington Pesticide Control Act (15.58 RCW), the Washington Pesticide Application Act (17.21 RCW), the General Pesticide Rules (WAC 16-228), the Worker Protection Standard (WAC 16-233) and a number of pesticide- or county-specific rules.

The Washington State Department of Agriculture, Pesticide Management Division has five offices in Washington:

WSDA Pesticide Management Division-Olympia
Natural Resources Building - 2nd floor
1111 Washington Street S.E. 
P.O. Box 42589 
Olympia, WA 98504-2589 

WSDA Pesticide Management Division-Spokane Branch 
222 North Havana, Suite 203 
Spokane, WA 99202-4776 

WSDA Pesticide Management Division-Moses Lake Branch 
821 E. Broadway, Suite 4 
Moses Lake, WA 98837 

WSDA Pesticide Management Division-Wenatchee Branch 
1505 North Miller Street, Suite 140 
Wenatchee, WA 98801-1569

WSDA Pesticide Management Division-Yakima Branch
21 North 1st Avenue, Suite 236 
Yakima, WA 98902

State pesticide laws and rules are available on the internet at or can be obtained from one of the locations above, or call toll-free, 1-877-301-4555.