Wash. Rev. Code § 29A.04.630
(1) The secretary of state and the board created in RCW 29A.04.510 shall jointly adopt rules, in the manner specified for the adoption of rules under the Administrative Procedure Act, chapter 34.05 RCW, governing:
[ 2003 c 111 s 163; 1992 c 163 s 4. Formerly RCW 29.60.020.]