California AI Artificial Voice Robocall Disclosure (AB 2905)
California · Cal. Pub. Util. Code 2874 (AB 2905, Stats. 2024)
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.
Technical 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.
Who is protected: People in California who receive automated prerecorded telephone calls.
Who must comply: Callers operating automatic dialing-announcing devices that deliver prerecorded messages to California recipients.
Key facts
| Jurisdiction | California |
|---|---|
| Level | State |
| Status | In effect |
| Protection strength | Limited protection |
| Effective date | 2025-01-01 |
| Enacted | 2024-09-20 |
| Citation | Cal. Pub. Util. Code 2874 (AB 2905, Stats. 2024) |
| Enforced by | California Public Utilities Commission (CPUC); violations enforced under the Public Utilities Code. |
| 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 |
| Last verified | 2026-06-16 |
| Official source | 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 1298 (2012 AV authorization) · In effect
- CA AB 856 (2015 drone trespass) · In effect
- California Bot Disclosure Act (bots must self-identify in sales/election messaging) · In effect
Related consumer protection rules elsewhere
- Missouri AI Therapy Chatbot Ban (SB 1019) · Enacted (not yet 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
See something wrong or out of date? Submit a correction — every entry must carry a verifiable official source.