Washington Revised Code Title 9. Crimes and Punishments § 9.41.305. Open carry of weapons prohibited on state capitol grounds and municipal buildings

(a) The west state capitol campus grounds; any buildings on the state capitol grounds; any state legislative office; or any location of a public state legislative hearing or meeting during the hearing or meeting; or

(b) City, town, county, or other municipality buildings used in connection with meetings of the governing body of the city, town, county, or other municipality, or any location of a public meeting or hearing of the governing body of a city, town, county, or other municipality during the hearing or meeting.

(a) “Buildings on the state capitol grounds” means the following buildings located on the state capitol grounds, commonly known as Legislative, Temple of Justice, John L. O'Brien, John A. Cherberg, Irving R. Newhouse, Joel M. Pritchard, Helen Sommers, Insurance, Governor's Mansion, Visitor Information Center, Carlyon House, Ayer House, General Administration, 1500 Jefferson, James M. Dolliver, Old Capitol, Capitol Court, State Archives, Natural Resources, Office Building #2, Highway-License, Transportation, Employment Security, Child Care Center, Union Avenue, Washington Street, Professional Arts, State Farm, and Powerhouse Buildings.

(b) “Governing body” has the same meaning as in RCW 42.30.020.

(c) “West state capitol campus grounds” means areas of the campus south of Powerhouse Rd. SW, south of Union Avenue SW as extended westward to Powerhouse Rd. SW, west of Capitol Way, north of 15th Avenue SW between Capitol Way S. and Water Street SW, west of Water Street between 15th Avenue SW and 16th Avenue SW, north of 16th Avenue SW between Water Street SW and the east banks of Capitol Lake, and east of the banks of Capitol Lake.

(4)(a) A person violating this section is guilty of a misdemeanor.

(b) Second and subsequent violations of this section are a gross misdemeanor.