Top Stories - May 31, 2026
1. Illinois Passes Historic AI Safety Bill Requiring Third-Party Audits Tier 1
The Illinois legislature approved SB 315, the Artificial Intelligence Safety Measures Act, by a 110-0 House vote on May 27, with Governor Pritzker pledging to sign it into law. The bill would be the first in the U.S. to mandate annual third-party safety audits of frontier AI models, with requirements covering catastrophic-risk assessment, cybersecurity, and 72-hour incident reporting.
2. Colorado AI Law in Flux: Federal Court Blocks Original Act as Replacement Is Signed Tier 1
A federal court blocked enforcement of Colorado’s original AI Act (SB 205) while Governor Polis signed SB 189, replacing duty-of-care obligations and impact assessments with a narrower notice-and-disclosure framework. The reversal reflects mounting pressure on states from the Trump administration’s federal preemption campaign.
3. White House Postpones Executive Order on AI Model Vetting Tier 1
President Trump postponed signing a draft executive order that would have established a voluntary pre-release vetting process for new AI models - prompted by Anthropic’s Mythos model - saying he “didn’t like certain aspects” of the proposal. The delay leaves a significant policy gap as frontier models with potential cybersecurity implications continue to reach the market.
| *Scoring: Tier 1 = regulatory changes/enforcement/EOs | Tier 2 = state/international/corporate | Tier 3 = analysis/commentary. Impact criteria: regulatory intent, scale, timeline.* |