(1) An attorney or authorized representative as defined in WAC 461-08-385 may appear for a party by either of the following actions:

(a) Filing a written notice of appearance, a petition for review or another pleading containing the name of the party to be represented, and the name, address, telephone number, and email address of the representative; or

(b) Entering an appearance at the time and place of a conference or hearing on the appeal, and notifying the presiding officer conducting the same of the party to be represented and the name, address, telephone number, and email address of the representative.

(2) Copies of every written notice of appearance or pleading that identifies the representative shall be served by the representative on all other parties or their representatives of record at the time the original is filed with the board.

(3) Where a petition for review has been filed with the board by the department or attorney general, the attorney general shall, unless the department or attorney general notifies the board otherwise, be deemed to have entered an appearance for the department, and the attorney general shall be exempt from the requirement of filing and serving a written notice of appearance.

(4) After a representative appears on behalf of a party, the board shall serve all future notices, orders and correspondence upon such representative. Service upon the representative shall constitute service upon the party.

(5) After a representative appears on behalf of a party, and gives notice to all other parties to the appeal, all future pleadings and correspondence shall be served upon that representative. Service upon the representative shall constitute service upon the party.