Oregon Revised Statutes Public Officers and Employees § 238.092

(a) A retired member of the Public Employees Retirement System who has retired as other than a member of the Legislative Assembly and who is thereafter appointed or elected as a member of the Legislative Assembly may elect, by giving the Public Employees Retirement Board written notice, to receive the pension and annuity provided by this chapter for service as other than a member of the Legislative Assembly, and be an active member of the system as a member of the Legislative Assembly for the purpose of service in the Legislative Assembly. A person may make an election under this paragraph only if the person becomes an active member of the system under this chapter for the purpose of service in the Legislative Assembly as provided in ORS 237.650 (3). Notice of an election under this paragraph must be given by the person not more than 30 days after the person takes office.

(b) A member of the Legislative Assembly who is a member of the system as a member of the Legislative Assembly and who becomes eligible to retire by reason of service as other than a member of the Legislative Assembly, without regard to when that service was performed, may elect, by giving the board written notice, to retire and receive the pension and annuity provided by this chapter for service as other than a member of the Legislative Assembly, and to continue, for the purpose of service in the Legislative Assembly, as an active member of the system as a member of the Legislative Assembly.

(c) Upon receipt of the notice provided for in paragraphs (a) and (b) of this subsection, the board shall determine that portion of the accumulated contributions, if any, of the member and interest thereon attributable to service as other than a member of the Legislative Assembly, which shall be used in determining the amount of the annuity the member shall receive for that service. The portion of the accumulated contributions, if any, of the member and interest thereon attributable to service as a member of the Legislative Assembly shall remain in the member account of the member and, together with any subsequent contributions and interest thereon, be used in determining the amount of the additional annuity the member shall receive for that service upon subsequent retirement. If the member does not have a member account, the board shall determine the member's retirement allowance for nonlegislative service based on the number of years of nonlegislative service, and shall determine any additional benefit to be received after the member subsequently retires based on the number of years of service in the Legislative Assembly.