Colorado enacted the first comprehensive state AI law (SB 24-205) in 2024, then dismantled it before it ever bound anyone. A 2025 special-session bill (SB 25B-004) delayed the start date, and SB 26-189, signed May 14, 2026, repealed and reenacted the whole framework. The replacement drops the EU-style duty of care for a leaner transparency regime that takes effect January 1, 2027.
Full Colorado AI law breakdown →Colorado AI Act (Original)
First comprehensive state AI law in the US. Required developers and deployers of high-risk AI systems to use reasonable care to protect consumers from algorithmic discrimination. Superseded by SB 26-189 which repeals and replaces this act with a narrower framework.
Key Provisions
- Risk management policy aligned to NIST AI RMF
- Annual impact assessments
- Consumer disclosure requirements
- Algorithmic discrimination protection
- 90-day incident response obligation
- 3-year record retention requirement
Colorado AI Act Replacement (ADMT Framework)
Repeals and reenacts the original Colorado AI Act (SB 24-205) with a narrower Automated Decision-Making Technology framework. Signed by Governor Polis on May 14, 2026. Effective January 1, 2027. Drops the duty of care, risk management programs, and impact assessments in favor of developer documentation duties and consumer notice and human-review rights.
Key Provisions
- Repeals and reenacts SB 24-205 before its obligations ever took effect
- Scope narrowed to automated decision-making technology that materially influences a consequential decision
- Developer documentation duties begin January 1, 2027
- Consumer notice at point of interaction plus plain-language explanation within 30 days of an adverse decision
- Consumer rights to data access, correction, and meaningful human review
- Attorney General enforcement under the Colorado Consumer Protection Act with a 60-day cure period, no private right of action
Increase Transparency for Algorithmic Systems
Special-session bill signed by Governor Polis on August 28, 2025. Delayed the original Colorado AI Act (SB 24-205) compliance date from February 1, 2026 to June 30, 2026, creating room for the 2026 rewrite that became SB 26-189.
Key Provisions
- Delayed SB 24-205 effective date from February 1, 2026 to June 30, 2026
- Enacted during the 2025 special legislative session
- Bridged the gap to the 2026 regular-session rewrite