Allowing collective bargaining over contributions for certain supplemental retirement benefits.

SB 5044 allows public employers in Washington to negotiate with employee unions over contributions for supplemental retirement benefits (such as medical plans) that are administered by or on behalf of employee organizations. This bill amends state law to explicitly permit bargaining on contribution levels for these supplemental benefits, while still keeping core retirement plans and benefits administered by the Department of Retirement Systems off-limits to negotiation. The change directly affects public employees covered under Washington's retirement systems who participate in supplemental benefit programs. The policy shift clarifies that contributions for these specific supplemental benefits - distinct from basic pension plans - are subject to collective bargaining.