AB 853

  • California Assembly Bill
  • 2025-2026 Regular Session
  • Introduced in Assembly
  • Passed Assembly Jun 02, 2025
  • Passed Senate Sep 11, 2025
  • Became Law Oct 13, 2025

California AI Transparency Act.

Abstract

The California AI Transparency Act requires a person that creates, codes, or otherwise produces a generative artificial intelligence system that has over 1,000,000 monthly visitors or users and is publicly accessible within the geographic boundaries of the state to make available an AI detection tool at no cost to the user that, among other things, allows a user to assess whether image, video, or audio content, or content that is a combination thereof, was created or altered by that person's generative artificial intelligence system and outputs any system provenance data that is detected in the content. Existing law makes the California AI Transparency Act operative on January 1, 2026. This bill would delay the operation of the California AI Transparency Act until August 2, 2026. This bill would, beginning January 1, 2027, additionally require a large online platform, as defined, to, among other things related to the provenance of content on the platform, detect whether any provenance data that is compliant with widely adopted specifications adopted by an established standards-setting body is embedded into or attached to content distributed on the large online platform. The bill would also require, beginning January 1, 2028, a capture device manufacturer, with respect to any capture device the capture device manufacturer first produced for sale in the state on or after January 1, 2028, to, among other things, provide a user with the option to include a latent disclosure in content captured by the capture device that conveys certain information, including the name of the capture device manufacturer. The bill would define "capture device" to mean a device that can record photographs, audio, or video content, including, but not limited to, video and still photography cameras, mobile phones with built-in cameras or microphones, and voice recorders. Existing law requires a covered provider to include a latent disclosure in AI-generated image, video, or audio content, or content that is any combination thereof, created by the covered provider's GenAI system that, among other things, conveys certain information and is permanent or extraordinarily difficult to remove, to the extent it is technically feasible. This bill would, beginning January 1, 2027, prohibit a GenAI system hosting platform, as defined, from knowingly making available a GenAI system that does not place disclosures, pursuant to those provisions. This bill would declare that its provisions are severable.

Bill Sponsors (3)

Votes


Actions


Oct 13, 2025

California State Legislature

Chaptered by Secretary of State - Chapter 674, Statutes of 2025.

California State Legislature

Approved by the Governor.

Sep 24, 2025

California State Legislature

Enrolled and presented to the Governor at 3 p.m.

Sep 12, 2025

Assembly

Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 60. Noes 4. Page 3381.).

Assembly

In Assembly. Concurrence in Senate amendments pending.

Sep 11, 2025

Senate

Read third time. Passed. Ordered to the Assembly. (Ayes 30. Noes 6. Page 2906.).

Sep 08, 2025

Senate

Read second time. Ordered to third reading.

Sep 05, 2025

Senate

Read third time and amended. Ordered to second reading.

Aug 29, 2025

Senate

Read second time. Ordered to third reading.

Senate

From committee: Do pass. (Ayes 5. Noes 2.) (August 29).

Aug 18, 2025

Senate

In committee: Referred to suspense file.

  • Referral-Committee
suspense file.

Jul 17, 2025

Senate

Read second time and amended. Re-referred to Com. on APPR.

  • Amendment-Passage
  • Reading-1
  • Reading-2
  • Referral-Committee
Com. on APPR.

Jul 16, 2025

Senate

From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 11. Noes 0.) (July 15).

Jun 11, 2025

Senate

Referred to Com. on JUD.

  • Referral-Committee
Com. on JUD.

Jun 03, 2025

Senate

In Senate. Read first time. To Com. on RLS. for assignment.

Jun 02, 2025

Assembly

Read third time. Passed. Ordered to the Senate. (Ayes 58. Noes 2. Page 1908.)

May 27, 2025

Assembly

Read second time. Ordered to third reading.

May 23, 2025

Assembly

Read second time and amended. Ordered returned to second reading.

Assembly

From committee: Amend, and do pass as amended. (Ayes 11. Noes 0.) (May 23).

Assembly

Assembly Rule 63 suspended. (Ayes 51. Noes 16. Page 1644.)

May 07, 2025

Assembly

In committee: Set, first hearing. Referred to APPR. suspense file.

  • Referral-Committee
APPR. suspense file. APPR

Apr 30, 2025

Assembly

From committee: Do pass and re-refer to Com. on APPR. (Ayes 9. Noes 0.) (April 29). Re-referred to Com. on APPR.

  • Committee-Passage
  • Committee-Passage-Favorable
  • Referral-Committee
Com. on APPR.

Assembly

Coauthors revised.

Apr 23, 2025

Assembly

From committee: Do pass and re-refer to Com. on JUD. (Ayes 11. Noes 1.) (April 22). Re-referred to Com. on JUD.

  • Committee-Passage
  • Committee-Passage-Favorable
  • Referral-Committee
Com. on JUD.

Apr 01, 2025

Assembly

Re-referred to Com. on P. & C.P.

  • Referral-Committee
Com. on P. & C.P.

Mar 28, 2025

Assembly

From committee chair, with author's amendments: Amend, and re-refer to Com. on P. & C.P. Read second time and amended.

Assembly

Referred to Coms. on P. & C.P. and JUD.

  • Referral-Committee
Coms. on P. & C.P. and JUD.

Feb 20, 2025

Assembly

From printer. May be heard in committee March 22.

Feb 19, 2025

Assembly

Read first time. To print.

Bill Text

Bill Text Versions Format
AB853 HTML
02/19/25 - Introduced PDF
03/28/25 - Amended Assembly PDF
05/23/25 - Amended Assembly PDF
07/17/25 - Amended Senate PDF
09/05/25 - Amended Senate PDF
09/16/25 - Enrolled PDF
10/13/25 - Chaptered PDF

Related Documents

Document Format
04/18/25- Assembly Privacy and Consumer Protection PDF
04/24/25- Assembly Judiciary PDF
05/05/25- Assembly Appropriations PDF
05/28/25- ASSEMBLY FLOOR ANALYSIS PDF
07/11/25- Senate Judiciary PDF
08/15/25- Senate Appropriations PDF
08/29/25- Sen. Floor Analyses PDF
09/08/25- Sen. Floor Analyses PDF
09/12/25- ASSEMBLY FLOOR ANALYSIS PDF

Sources

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