What changed in California’s synthetic-content and advertising rules?

What is confirmed about synthetic performers?

California’s governor signed SB 1050 on 16 September 2026. The official announcement describes explicit disclosure for video or audio advertisements using AI-generated performers to sell a product or service, and restrictions on continued use of advertisements found to violate the law. (gov.ca.gov)

Buyer relevance: include synthetic presenters, spokesperson videos and audio advertisements in creative review—not just written content produced for search.

Our recommended inventory records the asset, distribution channels, synthetic performer, underlying rights, disclosure treatment and approval owner. This is a preparatory control: the announcement establishes signing and the broad requirement, but the final commencement provisions and detailed exceptions were not independently retrieved here.

Why should older California AI-transparency summaries be rechecked?

Contemporary legal reporting records 30 September 2026 amendments under SB 1000, including removal of the earlier one-million-monthly-user threshold and changes to disclosure-verification requirements. The California Lawyers Association also lists AB 2713 among the year’s transparency legislation. However, the chaptered legislative pages could not be retrieved in this research session. (sidley.com)

Practical conclusion: do not approve a supplier’s exemption argument solely because it has fewer than one million users. Request a current, provision-specific assessment. Equally, do not turn this partially verified development into a claim that every marketing publisher now has identical watermarking obligations.

This is a priority verification item, not a final interpretation of the September amendments. Older official committee analysis helps explain the earlier framework, but cannot substitute for the subsequently enacted text. (apcp.assembly.ca.gov)