The Ballot Brief
2026 Ballot Measures

Colorado Statewide Ballot Measures 2026

Colorado voters will decide 13 statewide measures in 2026. The full list is below, all on the November 3, 2026 general election ballot. Summaries below stick to the certified ballot language, with no editorializing.

Notification of U.S. Department of Homeland Security for Certain Criminal Charges and Immigration Status Initiative

Initiated constitutional amendment

A yes vote

Supports requiring law enforcement to notify the U.S. Department of Homeland Security when a person charged with a crime of violence, or with a prior felony conviction, has an immigration status that cannot be determined.

A no vote

Leaves current notification practices unchanged.

YES supports this change · NO keeps current law

Read the certified ballot question

Require law enforcement to notify the U.S. Department of Homeland Security when a person is charged with a crime of violence or has a prior felony conviction and the person's immigration status cannot be determined

Full details → · Official full text & details →

Proposition 132: Penalties for Fentanyl Sale and Possession Initiative

Initiated state statute

A yes vote

Supports increasing penalties for fentanyl-related felonies, requiring treatment for certain drug offenses, and limiting sentencing exceptions in fentanyl-related crimes that cause another person's death.

A no vote

Keeps current fentanyl-related penalties and sentencing rules.

YES supports this change · NO keeps current law

Read the certified ballot question

Increase penalties for fentanyl-related felonies, require treatment for certain drug offenses, and limit sentencing exceptions in fentanyl-related crimes that cause another person's death

Full details → · Official full text & details →

Proposition 135: Prohibit Surgeries for Treatment in Response to Minors' Perception of Sex or Gender Measure

Initiated state statute

A yes vote

Supports prohibiting healthcare professionals from providing surgeries to persons under 18 for the purpose of treatment in response to a minor's perception of sex or gender.

A no vote

Leaves current law on such procedures unchanged.

YES supports this change · NO keeps current law

Read the certified ballot question

Prohibit healthcare professionals from providing surgeries to persons under age 18 for the purpose of "treatment in response to a minor's perception of sex or gender"

Full details → · Official full text & details →

Proposition NN: TABOR Revenue Cap Increase for K-12 Education Measure

State statute (legislative referral)

A yes vote

Supports increasing the TABOR revenue cap and directing surplus funds to K-12 education expenses.

A no vote

Keeps the current TABOR revenue cap and existing treatment of surplus funds.

YES supports this change · NO keeps current law

Read the certified ballot question

Increase TABOR cap and use surplus funds for K-12 education expenses

Full details → · Official full text & details →

Proposition 133: Require Life in Prison for Human Trafficking of Minors Measure

Initiated state statute

A yes vote

Supports requiring life in prison without parole or release for persons convicted of human trafficking of a child for sexual servitude.

A no vote

Keeps current sentencing law for that offense.

YES supports this change · NO keeps current law

Read the certified ballot question

Require life in prison without parole or release for persons convicted of human trafficking a child for sexual servitude

Full details → · Official full text & details →

Proposition 134: Sex Requirement for School and College Sports Initiative

Initiated state statute

A yes vote

Supports requiring all K-12 and collegiate school sports teams to be separated based on biological sex unless the team is co-ed.

A no vote

Leaves current rules for school sports teams unchanged.

YES supports this change · NO keeps current law

Read the certified ballot question

Require all K-12 and collegiate school sports teams to be separated based on biological sex, unless the team is co-ed

Full details → · Official full text & details →

Proposition 137: Designate Sporting Goods Sales Tax Revenue for Conservation Initiative

Citizen initiative

A yes vote

Supports directing sporting-goods sales-tax revenue to conservation programs.

A no vote

Keeps that revenue in the state general fund under current allocations.

YES supports this change · NO keeps current law

Read the certified ballot question

Direct state sales tax revenue collected on sporting goods to wildlife and conservation programs

Full details → · Official full text & details →

Right to Natural Gas Initiative

Initiated constitutional amendment

A yes vote

Supports adding a right to purchase and sell natural gas to the state constitution.

A no vote

Leaves energy regulation to current state and local law.

YES supports this change · NO keeps current law

Read the certified ballot question

Create a state constitutional right to purchase and sell natural gas

Full details → · Official full text & details →

Constitutional Right to Hunt and Fish Amendment

Initiated constitutional amendment

A yes vote

Supports adding a constitutional right to hunt and fish.

A no vote

Leaves hunting and fishing governed by current statute and regulation.

YES supports this change · NO keeps current law

Read the certified ballot question

Add a right to hunt and fish to the state constitution; as a constitutional addition it requires 55 percent voter approval

Full details → · Official full text & details →

Mail Ballot Voter Identification Amendment

Initiated constitutional amendment

A yes vote

Supports requiring identification to vote by mail ballot.

A no vote

Keeps Colorado's current signature-verification system for mail ballots.

YES supports this change · NO keeps current law

Read the certified ballot question

Require identification for mail-ballot voting; as a constitutional addition it requires 55 percent voter approval

Full details → · Official full text & details →

Local ballot questions in Colorado

2 county, city, school district and special-district questions from official ballot lists in 2 counties. These appear below the statewide measures on the ballots of the jurisdiction named; the county page shows every race and question together.

These measures appear on every ballot in the state. See your full ballot with your ZIP code

Browse the full Colorado voter guide →  ·  Colorado primary date →

About these measures

Colorado constitutional amendments require 55% voter approval; statutory measures pass with a simple majority.

Colorado initiatives - constitutional or statutory - need signatures equal to 5 percent of the votes cast for secretary of state at the previous general election (124,238 for the 2023-2026 cycle), and constitutional initiatives additionally need signatures from 2 percent of registered voters in each of the state's 35 senate districts. The Legislature refers statutes by majority vote and constitutional amendments by a two-thirds vote of each chamber. Most measures pass by simple majority, but any measure that adds language to the constitution requires 55 percent approval.

Titles and summaries follow each state's certified measure list from its election office or legislature, with links to the full text. Measure lists can change until final certification; always confirm with your state election office.