2015 ORS § 292.160¹
Repayment of amounts advanced
(1) The amounts advanced by the State Treasurer under ORS 292.150 (Advances upon mileage allowances of members of legislature and upon salaries of legislative employees and other state employees) shall be repaid to the State Treasurer through warrants issued by the Oregon Department of Administrative Services in payment of properly approved vouchers.
(2) The State Treasurer, as assignee of the parties to whom such advances have been made, is authorized to:
(a) Verify the vouchers.
(b) Indorse, as assignee, the warrants drawn in favor of the parties to whom the advances have been made, or to such parties and to the State Treasurer as assignee jointly.
(c) Reimburse, from the proceeds of the warrants, the funds or accounts from which the advances have been made.