The Revised Code of Washington, contained in six loose-leaf volumes, is not the law but is only prima facie evidence of the law. The law itself, is found only in the session laws. Since the adoption of the Revised Code of Washington as a prima facie code the supreme court has made it abundantly clear by repeated decisions that the session laws control RCW.
Harry E. Foster,
State Bar Journal,
Report of the Advisory Committee on the Code,
28 Wash. L. Rev. & St. B.J.
Available at: https://digitalcommons.law.uw.edu/wlr/vol28/iss4/8