Wash. Rev. Code § 36.16.100
All county and precinct offices shall be kept open for the transaction of business during such days and hours as the board of county commissioners shall by resolution prescribe.
[ 1963 c 4 s 36.16.100. Prior: 1955 ex.s. c 9 s 2; prior: 1951 c 100 s 1; 1941 c 113 s 1, part; Rem. Supp. 1941 s 9963-1, part.]