registered electors in an amount equal to at least five percent of the total number of votes cast for all candidates for the office of secretary of state at the previous general election shall be required to propose any measure by petition, and every such petition shall include the full text of the measure so proposed. Initiative petitions for state legislation and amendments to the constitution, in such form as may be prescribed pursuant to law, shall be addressed to and filed with the secretary of state at least three months before the general election at which they are to be voted upon.
(2.5) In order to make it more difficult to amend this constitution, a petition for an initiated constitutional amendment shall be signed by registered electors who reside in each state senate district in Colorado in an amount equal to at least two percent of the total registered electors in the senate district provided that the total number of signatures of registered electors on the petition shall at least equal the number of signatures required by subsection (2) of this section. For purposes of this subsection (2.5), the number and boundaries of the senate districts and the number of registered electors in the senate districts shall be those in effect at the time the form of the petition has been approved for circulation as provided by law.
(3) The second power hereby reserved is the referendum, and it may be ordered, except as to laws necessary for the immediate preservation of the public peace, health, or safety, and appropriations for the support and maintenance of the departments of state and state institutions, against any act or item, section, or part of any act of the general assembly, either by a petition signed by registered electors in an amount equal to at least five percent of the total number of votes cast for all candidates for the office of the secretary of state at the previous general election or by the general assembly. Referendum petitions, in such form as may be prescribed pursuant to law, shall be addressed to and filed with the secretary of state not more than ninety days after the final adjournment of the session of the general assembly that passed the bill on which the referendum is demanded. The filing of a referendum petition against any item, section, or part of any act shall not delay the remainder of the act from becoming operative.
(4) (a) The veto power of the governor shall not extend to measures initiated by or referred to the people. All elections on measures initiated by or referred to the people of the state shall be held at the biennial regular general election, and all such measures shall become the law or a part of the constitution, when approved by a majority of the votes cast thereon or, if applicable the number of votes required pursuant to paragraph (b) of this subsection (4), and not otherwise, and shall take effect from and after the date of the official declaration of the vote thereon by proclamation of the governor, but not later than thirty days after the vote has been canvassed. This section shall not be construed to deprive the general assembly of the power to enact any measure.
(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.
(5) The original draft of the text of proposed initiated constitutional amendments and initiated laws shall be submitted to the legislative research and drafting offices of the general assembly for review and comment. No later than two weeks after submission of the original draft, unless withdrawn by the proponents, the legislative research and drafting offices of the general assembly shall render their comments to the proponents of the proposed measure at a
