Oregon Redistricting Process

Congressional and Legislative

Congressional and legislative maps are enacted by the State Legislature. The Governor can veto the plans.

The Legislature can override a veto with a two-thirds vote. No party currently has a veto-proof majority in either chamber.


The Supreme Court reviews maps passed by the legislature and determines by September 1 of the year of reapportionment their legality. If the Supreme Court determines that the reapportionment does not comply with the Constitution, the task of redistricting is assigned to the Secretary of State. The Secretary conducts a hearing on the reapportionment at which the public may submit evidence, views and argument. The Secretary submits the corrected reapportionment to the Supreme Court on or before November 1 of the same year.

Challenges to congressional and legislative maps are litigated in the State Supreme Court.

Source: Or. Const. art. IV, § 6.

Ballot Measure Process

Kinds of Ballot Measures
Direct initiatives and all referendums are permitted to amend statutes. Direct initiatives are permitted to amend the state constitution. Legislatively initiated ballot measures may amend both statutes and the constitution.

Single-Subject Rule
There is a single-subject rule.

Initiative Subject Restrictions
There are no initiative subject restrictions.

Signature Requirements
1000 preliminary signatures are required.
The signature requirement for constitutional amendments is 8% of all votes cast for all candidates for governor in the previous general election, 6% for statutory amendments, and 4% for referendums. 1,867,000 people voted for a candidate for governor in the 2018 General Election in Oregon, so 149,360 signatures are required for constitutional amendments, 112,020 signatures are required for statutory amendments, and 74,680 signatures are required for referendums.

Submission Deadlines
Initiative petitions must be submitted no less than four months prior to the election in which the petition is to appear on the ballot (July 8, 2022). Referendums must be submitted within 90 days after the end of the session at which the act is passed.

Circulation Period
There is no limit on circulation. It must naturally be less than two years because biannual votes are held.

Ballot Title and Summary
The ballot title and summary are drafted by the Attorney General. After receiving public comments, the final version is also written by the Attorney General. Expedited reviews for titles and summaries are permitted.

Other Requirements
A fiscal impact statement is required. Measures that include a proposition to amend voting requirements need a supermajority to be passed. The supermajority required is the percentage of votes proposed in the measure. The Legislature can amend or repeal a statutory initiative through a majority vote. The Legislature can amend or repeal an amendment through a majority vote in both chambers of the Legislature. Initiatives are permitted on general election ballots, but not on primary or special election ballots or odd-year ballots.

Source: Or. Const. art. II, §23; art. IV, §1. Or. Rev. Stat. § 250 (2020). Oregon State Initiative and Referendum Manual

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