(1) In accordance with WAC
10-08-251, if a petition for a declaratory order is set for specified proceedings under RCW
34.05.240 (5)(b), the council shall give not less than seven days' advance written notice of the proceeding to the petitioner and all persons described in RCW
34.05.240(3). The notice shall specify the time, date, place, and nature of the proceeding and shall describe how interested persons may participate.