Artificial IntelligenceRegulations
United States

Colorado

Repealed / replacedApproach: Repealed comprehensive act; replaced with a narrower ADMT law

Colorado passed the first comprehensive US state AI law, SB 24-205, in 2024. It never took effect. After repeated delays and a special session, the legislature repealed and replaced it in May 2026 with SB 26-189, a narrower automated-decision law. The original duty of care against algorithmic discrimination, risk-management programs, and impact assessments are gone. The replacement focuses on disclosures and consumer rights around automated decision-making technology and takes effect January 1, 2027. Colorado was the only state named in the December 2025 federal preemption order.

Key points

  • SB 24-205, the original Colorado AI Act, was delayed from February 2026 to June 30, 2026, then repealed before it ever applied.
  • SB 26-189, signed May 14, 2026, replaces it with an ADMT transparency regime effective January 1, 2027.
  • The replacement drops the duty of care, risk programs, and impact assessments.
  • It adds pre-use consumer notices, explanations of adverse decisions within about 30 days, and human-review rights.
  • Penalties up to $20,000 per violation; Attorney General enforcement only; no private right of action.

Laws and instruments

Colorado Artificial Intelligence Act (original)

SB 24-205 (2024)
Repealed / replaced

The first comprehensive US state AI law. Imposed a duty of reasonable care to prevent algorithmic discrimination in consequential decisions. Repealed and replaced in 2026.

Effective: Repealed before taking effect

Colorado ADMT Act (replacement)

SB 26-189 (signed May 14, 2026)
Proposed

Regulates automated decision-making technology that materially influences consequential decisions. Requires pre-use notices, adverse-decision explanations, human review, and developer documentation.

Effective: January 1, 2027

Timeline

  • May 2024
    SB 24-205 enacted.
  • Aug 28, 2025
    Effective date delayed to June 30, 2026.
  • May 14, 2026
    SB 26-189 repeals and replaces the original act.
  • Jan 1, 2027
    Replacement ADMT law takes effect.

Who it applies to

Under the replacement, deployers and developers of ADMT that influences consequential decisions about Colorado residents, including employees and job applicants.

Penalties

Up to $20,000 per violation; Attorney General enforcement; no private right of action.

Recent developments

May 14, 2026
Hunton

Colorado repeals its landmark AI Act and replaces it with a narrower ADMT law

Governor Polis signed a bill repealing the first comprehensive US state AI law before it ever took effect. The replacement drops the duty of care, risk programs, and impact assessments, and instead regulates automated decision-making technology through disclosures and consumer rights, effective January 1, 2027.

Common questions

Does United States: Colorado have a comprehensive AI law?
United States: Colorado has a dedicated AI regime. Colorado passed the first comprehensive US state AI law, SB 24-205, in 2024. It never took effect. After repeated delays and a special session, the legislature repealed and replaced it in May 2026 with SB 26-189, a narrower automated-decision law. The original duty of care against algorithmic discrimination, risk-management programs, and impact assessments are gone. The replacement focuses on disclosures and consumer rights around automated decision-making technology and takes effect January 1, 2027. Colorado was the only state named in the December 2025 federal preemption order.
What are the penalties for AI violations in United States: Colorado?
Up to $20,000 per violation; Attorney General enforcement; no private right of action.
Who does AI regulation in United States: Colorado apply to?
Under the replacement, deployers and developers of ADMT that influences consequential decisions about Colorado residents, including employees and job applicants.
Cite this page

Artificial Intelligence Regulations, "AI Regulation in Colorado," reviewed July 15, 2026, https://artificialintelligenceregulations.com/jurisdictions/colorado.html.

Entries state the position as of the review date and link to the primary text for verification.