(1) If a petitioner has legal representation at the administrative hearing, the department shall be provided with the legal representative's name, address, and telephone number. The department may require the legal representative to file a written notice of appearance or to provide documentation that an absent petitioner has authorized the legal representative to appear on the party's behalf. The legal representative shall file a notice of withdrawal upon withdrawal of representation.

(2) When a legal representative has appeared in a matter, documents related to the hearing, including final orders, will only be served on the legal representative. Documents may be provided to a petitioner's legal representative via electronic distribution only, with the legal representative's agreement.

(3) For the purposes of this section, a "legal representative" means an attorney or supervised legal intern that is authorized to practice law in the state of Washington.