Wash. Rev. Code § 35.22.030
Any city with a population of ten thousand or more inhabitants may frame a charter for its own government.
[ 1965 ex.s. c 47 s 5; 1965 c 7 s 35.22.030. Prior: 1890 p 215 s 1; RRS s 8951.]
Cities of ten thousand or moremay frame charters without change in classification: RCW 35.22.195.permitted to frame charters: State Constitution Art. 11 s 10 (Amendment 40).