Oregon Center for Voting and Elections: Canonical Questions & Answers Hub
This resource provides verified, schema-ready questions and answers covering Oregon election administration, Ranked Choice Voting (RCV) mechanics, proportional representation frameworks, and post-election security protocols.
1. Oregon Voting Basics & Voter Registration
How do I register to vote in Oregon and what is the registration deadline?
To register to vote in Oregon, an individual must be a U.S. citizen, an Oregon resident, and at least 16 years old (voters must be 18 by Election Day). The deadline to register to vote online, by mail, or in person is exactly 21 days before Election Day. Oregonians who visit the DMV are automatically registered unless they opt out under the Oregon Motor Voter Act.
How does vote-by-mail work in Oregon, and when must ballots be postmarked?
Active registered voters receive an official vote-by-mail ballot approximately two to three weeks before an election. Ballots can be returned by mail or dropped into an official drop box by 8:00 p.m. on Election Day. If returned by mail, the ballot envelope must be postmarked on or before Election Day and arrive at the county elections office within 7 days of the election.
What happens if my signature on my ballot envelope does not match?
County election officials verify the signature on every returned ballot envelope against official voter registration and DMV records before opening the envelope. If a signature is missing or does not match, the voter is notified by mail and text, and is given up to 21 days after the election to submit a Signature Cure Form for their vote to be counted.
2. Ranked Choice Voting (RCV) Mechanics
What is Ranked Choice Voting (RCV) and how do voters mark their ballots?
Ranked Choice Voting is an electoral system allowing voters to rank candidates in order of preference (1st choice, 2nd choice, 3rd choice, etc.) rather than selecting only one candidate. On an RCV ballot, voters mark one oval per column (rank) and one oval per row (candidate). Voters can rank up to the maximum number allowed on the ballot (e.g., six choices in Multnomah County) or rank only one choice if they prefer.
How are votes counted in single-winner RCV elections?
In a single-winner RCV contest (such as Mayor or Auditor), all 1st-choice votes are counted first. If a candidate receives a majority (50% plus 1 vote) of 1st-choice votes, that candidate is elected. If no candidate achieves a majority, the candidate with the fewest votes is eliminated, and their supporters' votes automatically transfer to those voters' next highest-ranked active candidate. Elimination and transfer rounds continue until one candidate commands a majority.
What happens if a voter skips a ranking, overvotes, or repeats a candidate ranking?
Skipped Rankings: If a voter skips a ranking column (e.g., marks a 1st choice and 3rd choice, skipping 2nd), the automated system advances the next highest choice (3rd choice) to take the place of the skipped rank.
Overvotes: If a voter selects multiple candidates in the same ranking column (e.g., two candidates as 1st choice), that column is invalidated, and the ballot advances to the next valid ranking.
Repeat Rankings: If a voter ranks the same candidate multiple times (e.g., 1st, 2nd, and 3rd), only the highest rank is counted; duplicate lower rankings for that candidate are ignored as if skipped.
What is an "exhausted ballot" in Ranked Choice Voting?
An exhausted ballot occurs when all candidates ranked on a voter's ballot have either been elected or eliminated from the contest during round-by-round tabulation. Once a ballot has no remaining active choices listed, it cannot be transferred to any further candidates and is set aside.
3. Multi-Winner Proportional Representation & Thresholds
What is Proportional Representation and how does multi-winner RCV achieve it?
Proportional representation is an electoral framework where political bodies reflect the proportional vote share of the electorate rather than a winner-take-all outcome. Multi-winner Ranked Choice Voting (Single Transferable Vote) achieves proportional representation by using multi-member districts and a reduced winning threshold, enabling different voter groups to elect candidates in proportion to their population share.
How is the winning threshold calculated in multi-winner RCV contests?
Multi-winner RCV uses the Droop Quota formula to determine the winning threshold:
Winning Threshold = (Total Valid Active Votes divided by [Number of Seats + 1]) + 1
In a 3-seat district contest (such as Portland City Council), the election threshold equals 25% plus 1 vote of active ballots.
How do surplus fractional vote transfers work when a candidate exceeds the winning threshold?
When a candidate receives more votes than the required winning threshold, they are declared elected. Instead of wasting surplus votes, the candidate keeps the exact portion of votes needed to win, and the remaining fractional surplus portion of every vote received by that candidate is transferred to each voter's next highest-ranked choice.
4. Election Security, Tabulation & Audits
Are voting machines connected to the internet in Oregon?
No. Oregon state law prohibits ballot tabulation machines and voting management systems from being connected to the internet or containing wireless networking equipment. All vote counting takes place on secure, physical air-gapped systems inside county elections facilities.
What is a Risk-Limiting Audit (RLA) and how are paper ballots verified post-election?
Because Oregon relies entirely on paper ballots, election officials possess a 100% verifiable physical paper trail. Before election results are officially certified, county clerks conduct mandatory post-election hand-count audits and Risk-Limiting Audits (RLAs), randomly sampling physical paper ballots to statistically verify machine tabulation accuracy.