The US AI regulatory landscape in 2026: federal tension, state acceleration
The defining feature of US AI regulation in 2026 is the collision between federal deregulatory ambitions and aggressive state-level legislation. On December 11, 2025, President Trump signed an executive order proposing to preempt state AI laws deemed inconsistent with a "minimally burdensome" federal AI policy. At the same time, state legislatures passed more AI laws in 2025 than in all previous years combined — over 70 AI-related laws enacted in at least 27 states.
The critical legal question — whether an executive order can preempt enacted state legislation without congressional action — remains unresolved. Courts, not the executive order, will ultimately determine the enforceability of state AI laws. Until that question is resolved, organisations should maintain compliance with applicable state laws rather than relying on the executive order as relief.
Colorado AI Act: enforcement stayed, but effective date confirmed
Colorado's SB 24-205 — the first comprehensive US state AI law — has had a turbulent 2026. After its effective date was already delayed from February to June 30, 2026 by legislative amendment, a federal court granted a stay of enforcement on April 27, 2026 in xAI LLC v. Weiser. The stay pauses enforcement while litigation challenges the law's constitutionality.
Organisations should not treat the Colorado stay as permanent resolution. The litigation is ongoing and the stay could be lifted. Colorado's law — requiring developers and deployers of high-risk AI to exercise reasonable care to prevent algorithmic discrimination, with impact assessments, consumer disclosures, and penalties up to $20,000 per violation — represents the direction of travel for US AI regulation even if this specific law is modified through litigation.
Connecticut SB 5: May 2026 enactment
Connecticut's comprehensive AI bill — the Artificial Intelligence Responsibility and Transparency Act — passed both chambers of the Connecticut legislature in May 2026. The bill creates dedicated requirements for automated employment-related decision processes effective October 1, 2026 (with substantive obligations from October 2027), establishes a voluntary AI safe harbor program, integrates with Connecticut's existing anti-discrimination statutes, and adds companion chatbot regulations. Connecticut SB 5 represents a model for other states.
NYC Local Law 144: enforcement strengthening
New York City's Local Law 144, requiring annual bias audits for automated employment decision tools and candidate notification, has been enforced since 2023. A December 2025 audit by the NYC Comptroller found DCWP enforcement "ineffective" — leading to DCWP shifting to proactive investigations in 2026. Employers using AI hiring tools in NYC should treat Local Law 144 as an active enforcement priority, not a compliance checkbox.
The federal-state tension: what it means for organisations
With the Trump executive order challenged in courts and Congress not having passed a preempting federal AI law, state AI laws remain enforceable. The practical approach for enterprises operating across multiple states: identify the most stringent applicable requirements across all relevant states and build a compliance program that satisfies those requirements. This produces a more robust governance program than a state-by-state approach and positions well for eventual federal legislation. Federal preemption, if it comes, typically establishes floors — not ceilings — for state protection.
