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AI Act — Colorado Senate Bill 24-205, signed in May 2024 as the first comprehensive US state law on high-risk AI — but repealed and replaced before it ever took effect by SB 189, signed 14 May 2026.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