Colorado

✓ Initiative Process Available

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Citizen Initiative

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Referendum

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Constitutional Amend.

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Statute Initiative

Initiative Rules & Requirements

Signature Requirement: 124,238 signatures required (5% of votes for SOS in 2022).
Filing Deadline: August 3, 2026.
Filing Office: https://www.sos.state.co.us/pubs/elections/Initiatives/InitiativesHome.html
Filing Fee: $0
Review Process: Public hearings before the Title Board; potential appeals to the State Supreme Court.
Subject Restrictions: Strict single-subject rule; verified by the Title Board.
Distribution Rules: 2% of registered voters in each of the 35 state senate districts.
Circulator Rules: Must be a U.S. citizen and 18+; residency requirements for paid circulators.
Ballot Title Process: A Title Board (SOS, AG, and Legislative Council) sets the title.

Last verified: 3/29/2026

Signature Requirement: 124,238 signatures required (5% of votes for SOS in 2022).
Filing Deadline: August 3, 2026.
Filing Office

Signature Requirement: 124,238 signatures required (5% of votes for SOS in 2022).
Filing Deadline: August 3, 2026.
Filing Office: https://www.sos.state.co.us/pubs/elections/Initiatives/InitiativesHome.html
Filing Fee: $0
Review Process: Public hearings before the Title Board; potential appeals to the State Supreme Court.
Subject Restrictions: Strict single-subject rule; verified by the Title Board.
Distribution Rules: 2% of registered voters in each of the 35 state senate districts.
Circulator Rules: Must be a U.S. citizen and 18+; residency requirements for paid circulators.
Ballot Title Process: A Title Board (SOS, AG, and Legislative Council) sets the title.

Last verified: 3/29/2026