RCW 74.42.620
RCW 74.42.620: Departmental rules.
The department shall adopt rules pursuant to chapter 34.05 RCW necessary to carry out the policies and provisions of RCW 74.42.010 through 74.42.570 . The department shall amend or repeal any rules that are in conflict with RCW 74.42.010 through 74.42.570 .