Wash. Rev. Code § 72.06.050
The department shall cooperate with other departments of state government and its political subdivisions in the following manner:
[ 1977 ex.s. c 80 s 46; 1959 c 28 s 72.06.050. Prior: 1955 c 136 s 2. Formerly RCW 43.28.600.]
Purpose—Intent—Severability—1977 ex.s. c 80: See notes following RCW 4.16.190.