2013 ORS § 260.550¹
Use of term incumbent

(1) No person shall describe a candidate as the incumbent in the office to which the candidate seeks nomination or election in any material, statement or publication supporting the election of the candidate, with knowledge or with reckless disregard that the description is a false statement of material fact.

(2) For purposes of this section, a candidate shall be considered an incumbent if the candidate:

(a) Was elected to the identical office in the most recent election to fill that office and is serving and has served continuously in that office from the beginning of the term to which the candidate was elected; or

(b) Was appointed to the identical office after the most recent election to fill that office and is serving and has served continuously in that office from the date of appointment.

(3) If district boundaries have changed since the previous election or the appointment, a candidate shall be considered an incumbent if the candidate:

(a) Was elected to an office of the same name as the office to which the candidate seeks nomination or election at the most recent election to fill that office and is serving and has served continuously in that office from the beginning of the term to which the candidate was elected; or

(b) Was appointed to an office of the same name as the office to which the candidate seeks nomination or election after the most recent election to fill that office and is serving and has served continuously in that office from the date of appointment.

(4) This section does not apply to any words or statements required by law to be included in any statement produced by a filing officer or listed on a ballot. [1993 c.383 §3]