(1) Except in brief adjudicative proceedings, initial orders in all adjudicative proceedings before the department will become final without further action by the department unless, within twenty days of the date of service of the initial order, a petition for review is filed with the person named and the address stated in the initial order for such petition of review.

(2) The provisions of WAC 10-08-211 apply to petitions for review of initial orders.

(3) WAC 468-10-530 governs review of orders in brief adjudicative proceedings.