Washington Revised Code Title 28A. Common School Provisions § 28A.410.250. Washington professional educator standards board--Professional certification--Rules

(1) Grant professional certification to any teacher who attains certification from the national board for professional teaching standards; [and]

(2) Identify an expedited professional certification process for out-of-state teachers who have five years or more of successful teaching experience, including a method to determine the comparability of rigor between the Washington professional certification process and the advanced level teacher certification process of other states. A professional certificate must be issued to these experienced out-of-state teachers if the teacher holds: (a) A valid teaching certificate issued by the national board for professional teaching standards; or (b) an advanced level teacher certificate from another state that has been determined to be comparable to the Washington professional certificate.