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Staff Publications

Overview and History of Statewide Ballot Measures

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 2021; and links to additional resources at the offices of the Colorado Legislative Council Staff and the Colorado Secretary of State.

Colorado legislature email addresses ending in are no longer active. Please replace with for Colorado legislature email addresses. Details

The effective date for bills enacted without a safety clause is August 7, 2024, if the General Assembly adjourns sine die on May 8, 2024, unless otherwise specified. Details