(1) Any document submitted to the hearings and interviews unit must include the petitioner's case number assigned by the unit, if a case number has been assigned.

(2) A petitioner may submit documents for consideration via any one of the following methods:

(a) U.S. mail addressed to: Department of Licensing, Hearings and Interviews Unit, P.O. Box 9030, Olympia, WA 98507-9030.

(b) Facsimile transmission to the assigned hearings examiner.

(c) An internet portal made available by the department.

(d) Email to the hearings examiner, but only with the hearings examiner's preapproval.