California AB 2905 (robocalls must disclose an AI-generated voice)
California AI Artificial Voice Robocall Disclosure (AB 2905)
California · Cal. Pub. Util. Code 2874 (AB 2905, Stats. 2024)
- Status
- In effect
- Took effect
- January 1, 2025
- Applies to
- Callers operating automatic dialing-announcing devices that deliver prerecorded messages to California recipients.
- Enforced by
- California Public Utilities Commission (CPUC); violations enforced under the Public Utilities Code.
When a caller uses an automatic dialing-announcing device to play a prerecorded message, California already requires a live-voice introduction. This law adds that the introduction must also tell the person if the prerecorded message uses an artificial voice, meaning a voice generated or significantly altered using AI. The point is to keep people from being deceived by synthetic voices in automated calls.
Who is protected: People in California who receive automated prerecorded telephone calls.
Legal detail
AB 2905 amended Cal. Pub. Util. Code 2874 to require that the natural-voice announcement preceding an automatic dialing-announcing device's prerecorded message disclose whether the message uses an 'artificial voice,' defined as a voice generated or significantly altered using AI.
Key facts
| Jurisdiction | California |
|---|---|
| Level | State |
| Strength | Limited |
| Enacted | September 20, 2024 |
| Citation | Cal. Pub. Util. Code 2874 (AB 2905, Stats. 2024) |
| Private right of action | No, agency enforcement only |
| Penalties | No standalone dollar fine is set; violations of CPUC requirements are enforceable under the Public Utilities Code (where a violation of a Commission requirement can constitute a criminal offense). |
| Topics | consumer protection · AI disclosure and transparency |
| Bill text | California AB 2905 (2023-2024): automatic dialing-announcing devices: artificial voices |
More AI rules in California
- CA EO N-6-26 (AI Workforce) · In effect
- California AB 489 (AI healthcare chatbot misrepresentation ban) · In effect
- X.AI v. Bonta (AB 2013 training-data disclosure) · Blocked / in litigation
- CA SB 1168 — data center grid cost allocation · Enacted (not yet in effect)
- California SB 1119 Adam's Law, companion chatbots (2026) · Enacted (not yet in effect)
- California SB 867 AI chatbot toy moratorium (2026) · Enacted (not yet in effect)
Related consumer protection rules elsewhere
- Missouri AI Therapy Chatbot Ban (SB 1019) · In effect
- Vermont Data Broker Law (H.211) · Enacted (not yet in effect)
- Arkansas Frank Broyles Act AI amendment — voice and likeness protection (2025) · In effect
- PA v. Character.AI (Fake Psychiatrist Chatbot) · Blocked / in litigation
- NAACP v. xAI (Colossus 2 Air Pollution) · Blocked / in litigation
- RI Therapy Chatbot Ban (2026) · In effect
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