What Is Colorado AI Act?

Colorado AI Act, Colorado Senate Bill 24-205, signed in May 2024 as the first comprehensive US state law on high-risk AI, but repealed and replaced before it ever took effect by SB 189, signed 14 May 2026.

The original Colorado AI Act targeted "high-risk AI", systems that make or materially influence consequential decisions in areas such as employment, housing, lending, insurance, healthcare, and education, and would have required developers and deployers to run impact assessments, manage algorithmic-discrimination risk, and disclose AI use. It never came into force: the start date slipped from 1 February 2026 to 30 June 2026, a federal court froze enforcement in April 2026 amid a constitutional challenge by xAI (which the US Department of Justice joined), and on 14 May 2026 Governor Polis signed SB 189, repealing and replacing the Act with a narrower, disclosure-based framework that takes effect 1 January 2027. It is a cautionary example of how quickly US state AI law is shifting, verify the current text before relying on it.

Source: Colorado SB 24-205 (2024); SB 26-189 (signed 14 May 2026)