Oregon Revised Statutes Public Officers and Employees § 238.460

(1) If receipt in full by a person of a retirement allowance or other benefit under this chapter or ORS chapter 238A would prevent such person from receiving in full any other governmental pension to which the person is entitled, such person may waive for a calendar year sufficient monthly payments, or portions thereof, of retirement allowance or other benefit under this chapter or ORS chapter 238A to permit the person to receive in full the other governmental pension. The waiver shall be made in writing and filed with the Public Employees Retirement Board not less than 15 days before the first day of the month to which the waiver applies.

(2) If for any month the waiver does not apply to the full retirement allowance due under this chapter, the waiver applies first to all or the necessary portion of prior service pension, then to all or to the necessary portion of current service pension, and then to the necessary portion of annuity.

(3) The waiver may be revoked at any time, but no retirement allowance or other benefit waived for the period of time in which the waiver is in effect shall be paid. The revocation shall be made in writing and filed with the board. If a person dies during the period of time in which the waiver is in effect, the waiver is considered revoked on the date of such death.