OR SB1509

Presidential electors must sign a pledge to vote for the winning candidates, and any elector who casts a ballot not in accordance with that pledge automatically vacates the office

The Secretary of State examines each elector's ballot and declares invalid any unmarked ballot or one not matching the signed pledge; remaining electors fill vacancies by plurality voice vote

Electors must be registered voters in Oregon, affiliated with the selecting party (or unaffiliated if filling a vacancy), and must take an oath of office administered by the Secretary of State

If a winning presidential or vice presidential candidate dies or withdraws after election day but before the electoral college meeting, electors vote for the replacement selected by that candidate's political party

Certificate of ascertainment must include security features and statements about vacancy procedures; electors receive mileage expenses only if their ballot is determined valid

Effective date: July 1, 2026