Colo. Const. art. VII, § 1
Only a citizen of the United States who has attained the age of eighteen years, has resided in this state for such time as may be prescribed by law, and has been duly registered as a voter if required by law shall be qualified to vote at all elections.
Source: Entire article added, effective August 1, 1876, see L. 1877, p. 51. L. 01: Entire section amended, p. 107. L. 62: Entire section amended, see L. 63, p. 1057. L. 88: Entire section amended, p. 1453, effective upon proclamation of the Governor, L. 89, p. 1657, January 3, 1989. L. 2004: Entire section amended, p. 2745, effective upon proclamation of the Governor, L. 2005, p. 2341, December 1, 2004. Initiated 2020: Entire section amended, Amendment 76, effective upon proclamation of the Governor, December 31, 2020. See L. 2021, p. 4209.
Editor's note: This section was amended by Amendment 76, effective upon proclamation of the governor, December 31, 2020. The vote count for the measure at the general election held November 3, 2020, was as follows:
FOR: 1,985,239
AGAINST: 1,171,137
Cross references: For the right of citizens eighteen years or older to vote, see article XXVI of the constitution of the United States; for the qualifications of electors, see § 1-2-101.