Wash. Rev. Code § 41.40.749
(1) Active members of the Washington state patrol retirement system who have previously established service credit in the public employees' retirement system plan 2 while employed in the state patrol as either (a) a commercial vehicle enforcement officer who then became a commissioned officer on or before July 16, 2000, or (b) a communications officer who then became a commissioned officer, have the following options:
(2)
(a) Any commissioned officer choosing to transfer under this section shall have transferred from the retirement system to the Washington state patrol retirement system:
(b) For the applicable period of service, the employee shall pay:
[ 2012 c 72 s 1.]