Oregon Revised Statutes Elections § 254.056

(1) The general election shall be held on the first Tuesday after the first Monday in November of each even-numbered year. Except as provided in ORS 254.650, at the general election officers of the state and subdivisions of the state, members of Congress and electors of President and Vice President of the United States as are to be elected in that year shall be elected.

(2) The primary election shall be held on the third Tuesday in May of each even-numbered year. At the primary election precinct committeepersons shall be elected and major political party candidates shall be nominated for offices to be filled at the general election held in that year.