Oregon Revised Statutes Public Officers and Employees § 243.252

(1) The state may pay none of the cost of making health benefit plan coverage available to a retired state employee who is an eligible employee and to family members or may agree, by collective bargaining agreement or otherwise, to pay part or all of that cost.

(2) Nothing in subsection (1) of this section or other law, except ORS 243.886, prohibits a collective bargaining unit from agreeing with an employer that is a public body, as defined in ORS 174.109, to establish a retiree medical trust, voluntary employees' beneficiary association, health reimbursement arrangement or other agreement for health care expenses of employees or retirees if the provisions of the trust, association, arrangement or other agreement comply with the requirements of the Insurance Code.