Status: Passed both chambers and transmitted to Governor JB Pritzker on June 1, 2026. The Senate approved SB 315 on May 21, 2026 and the House passed it unanimously 110-0 on May 27, 2026. Pritzker has publicly committed to signing — he posted on X immediately after House passage: "Illinois is leading the nation in holding Big Tech accountable. I look forward to signing SB 315." Under Illinois law, the Governor has 60 days from transmittal to sign or veto; the deadline falls on or around August 1, 2026. Once signed, Illinois will be the first state in the nation to mandate annual third-party safety audits for frontier AI model developers.

Bill Number: Illinois SB 315 (104th General Assembly, 2025-2026 Regular Session)

Jurisdiction: Illinois

Category: AI Governance, Frontier Model Safety, Third-Party Audit Mandate, Catastrophic Risk Disclosure

Industries: Foundation Model Developers, Cloud Compute Providers, Enterprise AI Vendors

Enacted Date: Pending gubernatorial signature (transmitted to Governor June 1, 2026; signing deadline ~August 1, 2026)

Effective Date: January 1, 2027 (anticipated upon signing — aligns with the California SB 53 and New York RAISE Act frontier model law cadence)

Summary: The Artificial Intelligence Safety Measures Act is a focused frontier-model bill that mirrors the disclosure architecture of the California Transparency in Frontier Artificial Intelligence Act (SB 53, 2026) and the New York RAISE Act (S6953B / A6453B, 2026) but adds a first-of-its-kind audit requirement. Covered developers — large foundation-model providers above the compute and revenue thresholds defined in the bill — would be required to (1) publish written safety and security protocols addressing catastrophic and severe-risk scenarios; (2) update those protocols annually and report material changes; and (3) submit to an annual independent third-party audit of their stated safety protocols. Bipartisan support was overwhelming: the Senate passed SB 315 on May 21, 2026 and the House voted 110-0 on May 27, 2026, with the bill transmitted to the Governor on June 1, 2026. OpenAI and Anthropic publicly supported the bill; a national AI trade association (NetChoice) submitted a veto-request letter opposing it.

Key Requirements:

Safety Protocol Publication: Covered frontier developers must publish written safety protocols describing how the developer evaluates catastrophic-risk scenarios, including model evaluations, red-teaming, capability thresholds, deployment safeguards, and incident-response plans.
Annual Third-Party Audit: Each covered developer must engage an independent third-party auditor at least annually to evaluate whether the developer is complying with its own published safety protocols. Audit findings must be reported to the state. This is the first such mandate in any U.S. state AI law.
Material-Change Reporting: Updates or material changes to safety protocols must be disclosed to the state on a defined cadence.
Catastrophic Risk Definition: The bill defines "catastrophic risk" in alignment with California SB 53 and New York's RAISE Act, focusing on mass-casualty and critical-infrastructure-scale harms.
Enforcement: The Illinois Attorney General is the exclusive enforcer; there is no private right of action.

Affected Entities: Frontier model developers above the bill's compute and revenue thresholds — in practice, the same roughly half-dozen companies covered by California SB 53 and the New York RAISE Act (OpenAI, Anthropic, Google DeepMind, Meta Platforms, xAI, and peer-class developers). The bill does not regulate downstream deployers or the vast majority of enterprise AI applications, including physical security AI platforms.

Compliance Outlook: SB 315 establishes the third leg of an emerging state "frontier triangle" alongside California SB 53 and New York's RAISE Act. The three laws converge on safety protocol publication and severe-risk reporting but diverge on enforcement architecture: California uses Attorney General oversight, New York uses a Department of Financial Services oversight office, and Illinois adds the audit requirement on top. Frontier developers will likely build a single compliance program that satisfies all three regimes simultaneously. The audit mandate in particular is expected to influence federal and additional state proposals during the 2027 sessions.

IntelliSee Relevance: Adjacent. SB 315 regulates a tightly defined class of frontier model developers; it does not regulate downstream enterprise AI applications, physical security analytics, or video monitoring platforms. IntelliSee is not a frontier developer and is not covered by the bill's thresholds. The statute is nonetheless relevant context for Illinois security leaders evaluating layered AI procurement: the legislative direction in Illinois is toward heightened transparency and audit obligations for the largest AI providers, with no parallel restrictions on event-based visual analytics. Illinois customers in healthcare, K-12 and higher education, commercial real estate, manufacturing, and state and municipal facilities can deploy IntelliSee's AI gun detection, fall detection, and aggressive-behavior monitoring as engineering controls outside the frontier-model regulatory perimeter. See the State-by-State AI Security Legislation Tracker for the full Illinois regulatory context.

Compliance Timeline

May 21, 2026 — Illinois Senate passes SB 315.
May 27, 2026 — Illinois House passes SB 315 unanimously, 110-0. Governor Pritzker posts on X confirming intent to sign.
June 1, 2026 — General Assembly adjourns after an overnight session; SB 315 transmitted to Governor Pritzker. 60-day signing window begins.
~August 1, 2026 — Governor's deadline to sign or veto. Signature expected well before this date.
January 1, 2027 (anticipated) — Initial safety protocol publication and first annual audit cycle expected to begin, consistent with comparable state frontier-model laws.

Illinois Artificial Intelligence Safety Measures Act (SB 315, 2026)

Compliance Timeline

Related Legislation & Resources

Turn Legislative Mandates Into a Working Safety Program