DENVER– A large-scale signature gathering effort is underway in Colorado as proponents rush to get numerous citizen-initiated ballot measures qualified for the November statewide election, with issues ranging from from a right to hunt and fish to capping the stat income tax rate.
The conservative advocacy group Advance Colorado, for example, is hip-deep in the effort, with two measures already on the ballot and at least three others are in the signature gathering phase.
Already on the ballot is “Penalties for Fentanyl Crimes,” a statutory change that reinstates certain penalties related to fentanyl that the Democrat-controlled legislature has weakened or removed over the years.
A second measure, “Law Enforcement Reporting Requirements to Federal Authorities” would change the constitution to require Colorado law enforcement officers and agencies to notify the U.S. Department of Homeland Security within 72 hours of charging someone with a violent crime or have a prior felony conviction.
Advance Colorado is still collecting signatures on several other measure, which are due in early August. Those include:
- “Right to natural gas” would enshrine a right for Coloradans to use natural gas in their homes for cooking or heating, and distributors the right to sell natural gas, in the state constitution.
- “Cap income tax rate at 4.4%,” a statutory measure, would cap the amount of personal and corporate income tax at its current level of 4.4 percent.
- “Plain language for initiative ballots” would change the state Constitution to require all ballot measures to be written in no more than an 8th grade comprehension reading level.
Other measures in the pipeline
A couple other initiatives represented by the same law firm used by Advance Colorado (though it is unclear if they come out of Advance) are also actively gathering signatures, including:
“Constitutional Right to Hunt and Fish” amends the state Constitution, establishing hunting, fishing, and harvesting of fish and wildlife as a constitutional right to every Coloradan. It would apply to all species managed by the state except for endangered, federally prohibited, and non-game species. It comes during a time when animal rights activists are attempting to limit the ability to hunt certain species.
The Tucson-based Center for Biological Diversity, for example, helped push a 2024 mountain lion hunting ban that failed at the ballot box, and they are back for a second try at a statewide fur sale ban after a previous failed attempt. A 2024 attempt to ban fur sales in Denver failed at the ballot box.
The Boulder-based Prairie Dog Coalition is working to get a prairie dog shooting ban through the Colorado Wildlife Commission, which follows on the heels of an attempted beaver hunting ban bill that was killed in the legislature.
“Mail Ballot Voter Identification” would require a voter to sign and include the last four digits of their social security number or a Colorado Real ID number before they could vote.
In addition, some 180,000 signatures for a measure to constitutionally guarantee tax and fee revenue intended for building and maintaining Colorado highways actually goes to fixing roads were turned in to the secretary of state for for verification in late May.
Also already on the ballot ballot are three measure backed by Protect Kids Colorado: banning boys in girls’ sports, ending gender affirming surgeries for minors and enhanced penalties for child sex crimes.
All measures must gather around 125,000 valid signatures from Colorado voters by August 3 to make the November statewide ballot. For those measures that are constitutional amendments, the signatures must include at least 2 percent of voters from each of Colorado’s 35 senate districts. And for passage, they must get at least 55 percent of the vote.

