Colorado, USA, regional Obligatory referendum [LOR] - Amendments to constitution

General Typology

Obligatory referendum [LOR]
Colorado, USA
Political level
Local Name:
Amendments to constitution
Normative Level:
Legally Binding:
Legally Defined:

Colorado Constitution
Article XIX, Section 2. Amendments to constitution - how adopted

(1) Any amendment or amendments to this constitution may be proposed in either house of the general assembly, and, if the same shall be voted for by two-thirds of all the members elected to each house, such proposed amendment or amendments, together with the ayes and noes of each house thereon, shall be entered in full on their respective journals. The proposed amendment or amendments shall be published with the laws of that session of the general assembly. At the next general election for members of the general assembly, the said amendment or amendments shall be submitted to the registered electors of the state for their approval or rejection, and such as are approved by a majority of those voting thereon shall become part of this constitution.

(b) In order to make it more difficult to amend this constitution, an initiated constitutional amendment shall not become part of this constitution unless the amendment is approved by at least fifty-five percent of the votes cast thereon; except that this paragraph (b) shall not apply to an initiated constitutional amendment that is limited to repealing, in whole or in part, any provision of this constitution.

Source: Constitution of the State of Colorado 1876 (accessed 9 June 2017)

Subject Matter:

Submitting constitutional amendments to the electorate by the legislature


Authority : Proposed amendment must be agreed to by 2/3 of each house of legislature
Law : Constitution
Decision maker:


Available Time:
Turnout Quorum:
Legal source does not mention turnout quorum
Approval Quorum:
55% of votes cast
Geographical Quorum:
Legal source does not mention geographical quorum
Excluded Issues:
Other Formal Requirements:

Colorado Constitution
Article V, Section 1
(7.5)(a) Before any election at which the voters of the entire state will vote on any initiated or referred constitutional amendment or legislation, the nonpartisan research staff of the general assembly shall prepare and make available to the public the following information in the form of a ballot information booklet:

(I) The text and title of each measure to be voted on;

(II) A fair and impartial analysis of each measure [...]

Article XIX, Section 2
(2) If more than one amendment be submitted at any general election, each of said amendments shall be voted upon separately and votes thereon cast shall be separately counted the same as though but one amendment was submitted; but each general assembly shall have no power to propose amendments to more than six articles of this constitution.

(3) No measure proposing an amendment or amendments to this constitution shall be submitted by the general assembly to the registered electors of the state containing more than one subject, which shall be clearly expressed in its title; but if any subject shall be embraced in any measure which shall not be expressed in the title, such measure shall be void only as to so much thereof as shall not be so expressed.

Source: Colorado Constitution of 1876 (accessed 9 June 2017)

Procedural Elements

Wording Of Ballot Question:

Colorado Revised Statutes
1-40-115. Ballot - voting - publication

(1) Measures shall appear upon the official ballot by ballot title only. [...]

Source: Colorado Revised Statutes (accessed 9 June 2017)

Interaction With Authorities:
Supervision And Support:
Transparency And Finance: