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Law Resources

RCW 17.10 (Revised Code of Washington) This is the state's basic weed law.


The Washington Administrative Code (WAC) contains the rules and regulations for carrying out the state law.

WAC Chapter 16-750 includes the state Noxious Weed List, definitions and descriptions of region boundaries for Class B Weeds, and the schedule of monetary penalties.

WAC Chapter 16-752 describes the quarantine list maintained by the state Department of Agriculture.

The state law that calls for the creation and maintenance of the quarantine list is RCW 17.24.  The link to the State's Quarantine List is

State Class A list

State Class B List

State Class C List