Wash. Admin. Code § 51-04-040
(2) Within sixty calendar days of receipt of a timely petition for reconsideration, the council shall in writing:
[Statutory Authority: RCW 19.27.035 and 19.27.074. WSR 21-01-049, § 51-04-040, filed 12/8/20, effective 1/8/21. Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 19-24-078, § 51-04-040, filed 12/2/19, effective 1/2/20. Statutory Authority: RCW 19.27.031, 19.27.074 and 19.27.035. WSR 17-03-123, § 51-04-040, filed 1/18/17, effective 2/18/17. Statutory Authority: RCW 19.27.074. WSR 16-01-042, § 51-04-040, filed 12/9/15, effective 1/9/16. Statutory Authority: RCW 19.27.035, 19.27.074 and chapters 19.27 and 34.05 RCW. WSR 07-15-043, § 51-04-040, filed 7/13/07, effective 8/13/07. Statutory Authority: RCW 19.27.190, 19.27.020, and chapters 19.27 and 34.05 RCW. WSR 05-23-104, § 51-04-040, filed 11/17/05, effective 1/1/06. Statutory Authority: RCW 19.27.035 and chapters 19.27 and 34.05 RCW. WSR 02-01-113, § 51-04-040, filed 12/18/01, effective 7/1/02. Statutory Authority: Chapters 19.27 and 34.05 RCW and 1989 c 348. WSR 90-02-108, § 51-04-040, filed 1/3/90, effective 2/3/90.]