Wash. Rev. Code § 35.34.090
(1) In every city or town, a budget message prepared by or under the direction of the city's or town's chief administrative officer shall be submitted as a part of the preliminary budget to the city's or town's legislative body at least sixty days before the beginning of the city's or town's next fiscal biennium and shall contain the following:
[ 1985 c 175 s 12.]