Wash. Admin. Code § 415-112-290
(1) As a Plan 1 member, you may establish service credit for teaching out-of-state, which includes teaching out of the country, only if:
(2) To establish such service credit, you must submit the following to the department within the time limits set in RCW 41.32.310:
[Statutory Authority: RCW 41.50.050(5), 41.32.065, and 41.32.300. WSR 10-14-112, § 415-112-290, filed 7/7/10, effective 8/7/10. Statutory Authority: RCW 41.50.050(5) and 41.32.300. WSR 05-12-042, § 415-112-290, filed 5/25/05, effective 6/25/05. Statutory Authority: RCW 41.50.050. WSR 99-14-008, § 415-112-290, filed 6/24/99, effective 7/25/99. Statutory Authority: RCW 41.50.050(6) and 41.50.090. WSR 78-03-023 (Order IV), § 415-112-290, filed 2/15/78. Formerly WAC 462-20-055.]