California Mandates Disclosure of AI Synthetic Performers in Ads
California passed SB 1050, requiring AI synthetic performer disclosures in ads.
Why it matters: This new law sets a precedent for AI transparency in advertising, affecting compliance and content creation nationwide. Legal teams must update practices to account for AI-disclosed content in marketing.
- Governor Gavin Newsom signed SB 1050 on Sept 16, 2026; effective Jan 1, 2027.
- SB 1050 requires clear disclosure when ads use AI-generated synthetic performers.
- The law covers audio, video, and digital ads meant to induce purchases via any medium.
- Violations can lead to actions under California's False Advertising and Unfair Competition Laws.
On September 16, 2026, California Governor Gavin Newsom signed Senate Bill 1050 (SB 1050) into law, making it the first state to explicitly require disclosures when advertisements use AI-generated synthetic performers. These "synthetic performers" are digital representations created wholly or partly using generative AI to simulate human performance but are not recognizable as any real person. The law demands that any advertisement featuring such AI-generated actors include a clear and conspicuous disclosure, with wording similar to "this performance features a synthetic performer" or "no human performer is depicted."
SB 1050 applies broadly to audio, video, audiovisual, and digital advertisements disseminated through almost any medium where the content is intended or reasonably expected to drive consumer purchases. The law's scope ensures that consumers are informed whenever they are engaging with AI-generated content rather than human performers.
Authored by Senator Angelique Ashby (D-Sacramento) and signed at the SAG-AFTRA headquarters—a union that supported the bill—SB 1050 reflects growing concerns about AI's impact on the creative economy. Governor Newsom emphasized, "Californians deserve to know when the person selling them something isn’t a person at all." Similarly, SAG-AFTRA's Duncan Crabtree-Ireland highlighted that the legislation enhances consumer transparency and protects performers by clarifying when synthetic actors are used.
Importantly, violations of SB 1050 are actionable under California's False Advertising Law and Unfair Competition Law, including the possibility of private and class-action litigation. This enforcement framework signals that companies need to comply diligently to avoid legal risks.
The California law follows a similar statute enacted in New York in June 2026, showing an emerging regulatory trend toward AI transparency in advertising. Legal and compliance teams should anticipate further developments and prepare for adapting advertising strategies accordingly.
By the numbers:
- Sept 16, 2026 — Date Governor Newsom signed SB 1050 into law
- Jan 1, 2027 — SB 1050 enforcement date
- June 2026 — New York enacted similar AI synthetic performer disclosure law
What's next: Watch for forthcoming rules clarifying enforcement and potential penalties under SB 1050 as the January 2027 implementation date nears.