Illinois lawmakers on Wednesday [1]passed a landmark AI safety bill ( [2]SB 315 ) that would require major AI companies to publish safety plans, submit annual third-party testing reports, report serious incidents quickly, and protect whistleblowers who flag emerging risks. OpenAI and Anthropic supported the bill, which could make Illinois a testing ground for state-level AI governance as federal regulation [3]remains stalled . Ars Technica reports:

> To force companies to be more transparent about rapid developments, Illinois would likely rely on "the Big Four accounting and auditing firms -- Deloitte, EY, KPMG, and PwC -- to audit their safety practices," [said Scott Wisor, a policy director at a nonprofit called Secure AI Project, which supported the bill]. The required independent audits will likely frustrate Trump, who has tried and failed to stop states from implementing AI safety laws as Congress stalls on passing any legislation.

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> For Trump, the priority has been to promote AI industry interests, but he began considering expanding federal government safety testing after Anthropic's Mythos was [4]released and the AI firm limited access due to safety concerns. Whether or not governments at any level are prepared to protect society from the most catastrophic AI risks remains a major concern for critics who wonder how and when governments will intervene. After inside sources started leaking the details of Trump's AI safety testing plans, critics warned that even the federal government may lack the necessary expertise to audit frontier AI models. And it seems the same criticism extends to independent auditors that Illinois may rely on but industry insiders suggest some AI firms may not entirely trust.

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> Adam Kovacevich is CEO of Chamber of Progress, a trade group that opposed SB 315 and counts Google and Apple among its members. He [5]told Wired that Illinois' requirements "would force companies to expose sensitive systems to untested auditors in a regulatory regime that's all liability and no standards."

Governor J.B. Pritzker confirmed his intent to sign, proclaiming that "Illinois is leading the nation in holding Big Tech accountable."

"I look forward to signing SB 315 and working with the legislature so that AI, when used, is used responsibly," Pritzker said.

Steve Wimmer, a senior policy and technical advisor for the Transparency Coalition, [6]said his group considers the law to be "one of the most important pieces of legislation in 2026."



[1] https://arstechnica.com/tech-policy/2026/05/trump-loses-more-control-over-ai-regulation-as-illinois-passes-landmark-law/

[2] https://legiscan.com/IL/bill/SB0315/2025

[3] https://yro.slashdot.org/story/26/05/21/2034246/trump-calls-off-ai-executive-order-over-concern-it-could-weaken-us-tech-edge

[4] https://it.slashdot.org/story/26/04/07/2115208/anthropic-unveils-claude-mythos-powerful-ai-with-major-cyber-implications

[5] https://www.wired.com/story/openai-chris-lehane-global-affairs-pr/

[6] https://www.transparencycoalition.ai/news/illinois-lawmakers-send-significant-ai-frontier-model-safety-bill-to-gov-pritzker