September 14–20, 2026

California requires disclosure of AI-generated performers in advertising

Governor Newsom signed SB 1050 on September 16, and it was chaptered the same day as Chapter 246.

Beginning January 1, 2027, an advertisement that prominently features a “synthetic performer”—an AI-generated humanlike figure or voice that does not correspond to a recognizable real person—must include a clear and conspicuous disclosure. The law covers audiovisual and audio-only advertisements, with specified exceptions including certain promotions for entertainment works in which the synthetic performer appears. Violations are enforceable through California’s existing consumer-protection framework, including the Unfair Competition Law.

Newsom orders accelerated AI oversight and a frontier-model “kill switch” study

On September 18, Governor Newsom issued Executive Order N-9-26, accelerating implementation of California’s independent-verification and AI-auditor laws.

The order directs the Government Operations Agency to publish application requirements and selection criteria for independent verification organizations by May 1, 2027; accelerate implementation of the AI-auditor framework by December 1, 2027; and consult with Cal OES and national experts on recommendations due November 16, 2026.

Those recommendations must address onsite independent verification organizations at large frontier developers, independent verification of safety frameworks and reports, a technically effective and independently verified “kill switch” for frontier models, and expansion of reportable critical-safety incidents to specified loss-of-control events.

The order does not require AI companies to install a kill switch. It directs the state to assess the technical feasibility and potential efficacy of legislation imposing such a requirement.

Workplace-surveillance bill reaches the Governor

AB 1331 was presented to Governor Newsom on September 14. The measure would restrict workplace-surveillance practices, require notice concerning covered monitoring, prohibit surveillance in specified private areas, and authorize civil enforcement. It remained enrolled—not signed or chaptered—at the September 20 cutoff.

The principal employment-AI measures SB 947 and SB 951 also remained pending before the Governor at the cutoff.

No qualifying new published opinion

No published California appellate or Ninth Circuit opinion meeting the Reporter’s verification and materiality standards was located for September 14–20. A Los Angeles Superior Court sanctions matter involving hallucinated citations was excluded because the underlying order was issued September 11, outside the coverage window. Newly filed federal complaints were also excluded where the actual pleadings could not be independently reviewed through an official source.

Why it matters

The week paired a concrete consumer-disclosure mandate with an executive push to build the institutions and technical options for independent frontier-model oversight. The distinction between current legal duties and proposals for future legislation remains essential.

Informational only; not legal advice.