Nineteen New AI Bills Become Law in 2026 as US States Race to Regulate

# Nineteen New AI Bills Become Law in 2026 as US States Race to Regulate

The pace of state-level artificial intelligence regulation in the United States has shifted from cautious to urgent. According to tracking data from Plural Policy, nineteen new AI bills were signed into law in the two weeks ending in late March 2026 alone, nearly tripling the total from six enacted laws at the start of mid-March to twenty-five by early April. Another twenty-seven bills have passed both chambers of their respective legislatures and are awaiting gubernatorial signatures. With more than 600 AI-related bills introduced across 2026 state sessions and 1,561 tracked across 45 states by MultiState.ai, the American regulatory landscape for artificial intelligence is being written not in Washington, D.C., but in state capitols from Boise to Augusta.

The surge is broad in scope. Chatbot transparency, healthcare AI guardrails, education frameworks, and consumer protection mandates are all advancing simultaneously, often with bipartisan support. The result is a fast-moving patchwork that is forcing companies to comply with diverging requirements across jurisdictions even as federal preemption remains an open question.

Healthcare AI Takes Center Stage

Among the most consequential new laws are those targeting the use of AI by health insurers. Indiana enacted a downcoding bill on March 4 (effective July 1, 2026) that prohibits health insurers from using AI as the sole basis to downcode a claim without review of the covered individual’s medical record. The law also requires insurers to disclose when AI is used in downcoding decisions or adverse prior authorization determinations and bars targeted or discriminatory downcoding against providers treating patients with complex or chronic conditions.

Utah followed on March 19 with legislation requiring insurers to publicly disclose if AI is used to review authorization requests and to notify the Department of Insurance. Utah’s SB 319 updates requirements for health insurance preauthorization decisions to include specific restrictions on AI use. The law takes effect January 1, 2027.

Washington’s legislature gave final approval to five AI-related bills, including SB 5395, which addresses AI in health insurance prior authorization. Washington Governor Bob Ferguson also signed the state’s chatbot and provenance bills into law.

“States are not waiting for Congress to act,” said Liz Harding, a partner at Troutman Pepper Locke who tracks state AI legislation weekly. “The volume and velocity of bills we are seeing in 2026 is unlike anything in the prior two years. Legislators have moved past asking whether to regulate AI and are now focused on how.”

Chatbot Laws Spread Rapidly

Conversational AI regulation has emerged as one of the fastest-moving categories. Oregon, Idaho, and Nebraska all enacted chatbot laws in April 2026. Nebraska became the fourth state this year to pass such a law when Governor Jim Pillen signed the Conversational AI Safety Act (LB 525) on April 14. Idaho’s S 1297 establishes regulations for conversational AI services, while its companion bill S 1227 creates a comprehensive framework for the use of generative AI in K-12 public education.

Maine’s Governor Janet Mills signed LD 2082 into law on April 13, prohibiting any person from providing therapy or psychotherapy services through AI unless the services are delivered by a licensed professional. The law addresses growing concern over unregulated mental health chatbots that operate without clinical oversight.

The Bigger Picture

The state-level acceleration is happening against a backdrop of federal inaction and executive ambiguity. California Governor Gavin Newsom issued Executive Order N-5-26 on March 30, directing state agencies to draft recommendations for AI safety requirements related to illegal content, bias, civil rights, and free speech for companies doing business with state agencies. Meanwhile, Colorado’s comprehensive AI Act (SB 205), one of the first state laws to regulate high-risk AI systems used in consequential decisions, had its implementation pushed back from February 1 to June 30, 2026, reflecting the operational difficulty of translating legislative intent into workable compliance frameworks.

Florida Governor Ron DeSantis added another dimension on April 15 by calling a special legislative session beginning April 28 to consider, among other topics, his proposed AI Bill of Rights. New York Governor Kathy Hochul signed the RAISE Act chapter amendments into law, further refining that state’s approach to AI governance.

The Transparency Coalition, which tracks AI legislation nationwide, noted in its April 24 update that the legislative pipeline shows no sign of slowing. With 27 bills that have cleared both chambers still awaiting signatures and hundreds more in committee, the second half of 2026 state sessions could push the total number of enacted AI laws well past fifty.

Why This Matters

For companies building or deploying AI systems, the compliance landscape is becoming dramatically more complex. The absence of a federal framework means that a health insurer operating in Indiana, Utah, and Washington must now navigate three distinct disclosure and review regimes for AI-assisted claims processing. A company deploying a chatbot in Nebraska, Oregon, and Idaho faces three different transparency mandates. And with Colorado’s comprehensive law taking effect in June, businesses that touch consequential decisions such as hiring, lending, and insurance will face the most prescriptive state-level AI compliance requirements yet enacted in the United States.

The question hanging over all of this activity is federal preemption. If Congress passes a national AI framework, it could override or harmonize the growing patchwork. But with no comprehensive federal AI bill close to passage, states are filling the vacuum at a pace that may soon make harmonization politically and practically difficult.

What to Watch Next

Colorado’s AI Act takes effect June 30, 2026, and will serve as a test case for comprehensive state-level AI regulation. Florida’s special session beginning April 28 could produce the first AI Bill of Rights enacted by a state legislature. And with dozens of bills still moving through committees and across governors’ desks, the count of enacted AI laws in 2026 is likely to climb well beyond the current twenty-five before sessions adjourn.