(1) The remedies provided in RCW 41.50.530
are in addition to, and not in substitution for, any other remedies provided by law to enforce a dissolution order against an obligor.
(2) The remedies provided in RCW 41.50.530
shall be the exclusive remedies enforceable against the department of retirement systems or the retirement systems listed in RCW 41.50.030
to recover spousal maintenance pursuant to a dissolution, divorce, or legal separation order.
(3) RCW 41.50.530
apply to all dissolution orders incident to a decree of divorce, dissolution, or legal separation whether entered before or after July 1, 1987.