Wash. Admin. Code § 381-70-240
The board shall cause to be served all notices, orders, and other papers issued by it, personally or by first class mail, together with any other papers which it is required by law to serve. Every other paper shall be served by the party filing it with the board with proof of service, either personally or by affidavit of service by first class mail upon the parties and all counsel.
Wash. Admin. Code § 381-70-240
91-14-029, § 381-70-240, filed 6/26/91, effective 7/27/91.
Reviser's note: Under RCW 34.05.030(1)(c), as amended by section 103, chapter 288, Laws of 1988, the above section was not adopted under the Administrative Procedure Act, chapter 34.05 RCW, but was published in the Washington State Register and codified into the Washington Administrative Code exactly as shown by the agency filing with history notes added by the code reviser's office.