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Staff Publications

Overview and History of Statewide Ballot Measures in Colorado

Elections & Redistricting
State Government

This memorandum provides an overview of the statewide ballot measure process; a summary of the measures approved or rejected by Colorado voters between 1880 and 2022; and links to additional resources at the offices of the Colorado Legislative Council Staff and the Colorado Secretary of State.

Email addresses for the Colorado legislature have changed from the domain to the domain on December 1, 2022. Details
The effective date for bills enacted without a safety clause (unless otherwise specified) is August 7, 2023. Details
The 2023 Ballot Information Booklet (Blue Book) is now available. Details