Wash. Admin. Code § 388-03-116
(2) Each translated document must bear the affidavit of the translator, sworn to before a notary public, certifying that the:
[Statutory Authority: RCW 74.04.025, 74.08.090, Title VI of the Civil Rights Act of 1964, and 45 C.F.R. Section 80.3 (b)(2). WSR 15-07-008, § 388-03-116, filed 3/6/15, effective 4/6/15. Statutory Authority: RCW 2.43.010, 74.04.025, and 74.08.090. WSR 00-06-014, § 388-03-116, filed 2/22/00, effective 3/24/00.]