The Colorado AI Act (Senate Bill 24-205) is a state law requiring developers and deployers of high-risk AI systems to use reasonable care to protect consumers from algorithmic discrimination, supported by impact assessments, consumer notice, and an opt-out from AI-driven decisions. It regulates the use of AI in consequential decisions about people rather than the development of frontier models. Enacted May 17, 2024, its effective date was later amended from February 1, 2026 to June 30, 2026 by Senate Bill 25B-004.
Status and timeline
SB 24-205 was sponsored by Sen. Rodriguez, Cutter, Michaelson Jenet, Priola, Winter F., and Fenberg, and by Rep. Titone, Rutinel, and Duran. It was enacted on May 17, 2024. A subsequent measure, SB 25B-004, enacted in 2025, amended the effective date throughout SB 205 from February 1, 2026 to June 30, 2026, giving developers and deployers additional time to comply.
Scope and definitions
The law applies to high-risk AI systems used in consequential decisions and centers on the concept of algorithmic discrimination.
- Algorithmic discrimination: unlawful differential treatment or impact disfavoring individuals based on protected characteristics, enumerated as age, color, disability, ethnicity, genetic information, language proficiency, national origin, race, religion, reproductive health, sex, and veteran status.
- High-risk AI system: an AI system that makes, or is a substantial factor in making, a consequential decision.
- Consequential decision: a decision with material legal or significant effect on education, employment, financial services, government services, healthcare, housing, insurance, or legal services.
Obligations by actor
Developer obligations
Developers of high-risk AI systems must use reasonable care to protect consumers from algorithmic discrimination; provide documentation on training data, known limitations, and intended uses; conduct impact assessments before deployment; and maintain records for compliance verification. Compliance with these requirements creates a rebuttable presumption that reasonable care was exercised.
Deployer obligations
Deployers of high-risk AI systems must implement a risk management policy governing use of high-risk AI; complete impact assessments annually and upon significant modifications; provide consumer notice when AI is used in consequential decisions; allow consumers to opt out of AI-driven decisions where feasible; and disclose to consumers the principal reason for adverse decisions.
Enforcement and penalties
Enforcement rests with the Colorado Attorney General under the Colorado Consumer Protection Act. The law provides no private right of action. Compliance with the statutory requirements constitutes a rebuttable presumption of reasonable care.
Regulatory approach
The Colorado AI Act differs from the frontier AI transparency laws (CA SB 53, NY RAISE Act), which target frontier model developers and require disclosure. It also differs from product-liability proposals such as the AI LEAD Act, which target developers and deployers and create liability for harm. Colorado instead regulates deployment decisions, addressing how AI is used to make consequential decisions about people, and frames AI governance through an anti-discrimination lens rather than a safety, competition, or national security lens. It regulates AI as a tool that can perpetuate existing patterns of discrimination in areas such as housing, employment, lending, and healthcare.
Related
- The law is an instance of Techno-Federalism: How Regulatory Fragmentation Shapes the U.S.-China AI Race, with a state legislating in a regulatory domain (anti-discrimination in AI use) not addressed at the federal level.
- The "consequential decision" framing connects to AI Labor Disruption, reflecting AI's role in employment and lending decisions.
- The opt-out and consumer notice provisions offer a different approach to controlling AI-driven decisions than the technical solutions discussed in AI as Normal Technology.
Sources
- Full text: SB 24-205, Colorado Legislature (2024)
- Full text: SB 25B-004, Colorado Legislature (2025, date amendment)