(1) Notice of a hearing shall be mailed to all parties not less than twenty calendar days before the hearing date. The twenty-day notice provision may be waived by agreement of all parties.

(2) Contents. The notice shall contain:

(a) The names and mailing addresses of the parties and their representatives, if any;

(b) The docket number and name of the proceeding;

(c) The name, official title, mailing address, and telephone number of the presiding officer, if known;

(d) A statement of the time, place, date, and general nature of the proceeding (e.g., excise, property, etc.);

(e) A statement that the hearing is held pursuant to this chapter and chapter 82.03 RCW;

(f) A statement that, if a limited-English speaking or hearing-impaired party or witness needs an interpreter, a qualified interpreter will be appointed at no cost to the party or witness. The notice shall also state that persons with disabilities may request reasonable accommodations to allow their participation in the hearing. The notice shall include a form for a party to indicate if an interpreter is needed and identification of the primary language, or if a participant is hearing impaired; or to describe the reasonable accommodations requested.