Wash. Rev. Code § 72.68.050
Whenever a prisoner who is serving a sentence imposed by a court of this state is transferred from a state correctional institution for convicted felons under RCW 72.68.040 through 72.68.070, the superintendent shall send to the clerk of the court pursuant to whose order or judgment the prisoner was committed to a state correctional institution for convicted felons a notice of transfer, disclosing the name of the prisoner transferred and giving the name and location of the institution to which the prisoner was transferred. The superintendent shall keep a copy of all notices of transfer on file as a public record open to inspection; and the clerk of the court shall file with the judgment roll in the appropriate case a copy of each notice of transfer which he or she receives from the superintendent.
RCW 72.68.050