Wash. Admin. Code § 173-408-060
(2) Each owner or operator of an active MSW landfill having fewer than 450,000 tons of waste in place must submit an annual waste in place report to the department and local authority in accordance with WAC 173-408-170 (3) and (4) until either:
[Statutory Authority: Chapter 70A.540 RCW. WSR 24-11-052 (Order 22-15), § 173-408-060, filed 5/13/24, effective 6/13/24.]