SB 1000 California Senate · 2025-2026 Regular Session

California AI Transparency Act.

Summary
Existing law, the California AI Transparency Act (CATA) , beginning August 2, 2026, generally regulates provenance data disclosure in content generated by artificial intelligence (AI) , including by requiring a covered provider to make available an AI detection tool at no cost to the user that meets certain criteria. Existing law requires a covered provider to offer the user the option to include a certain manifest disclosure in image, video, or audio content, or content that is any combination thereof, created or altered by the covered provider's generative artificial intelligence (GenAI) system and requires a covered provider to include a certain 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. Existing law defines "covered provider" for these purposes to mean a person that creates, codes, or otherwise produces a generative AI system that has over 1,000,000 monthly visitors or users and is publicly accessible within the geographic boundaries of the state. This bill would recast those provisions to, among other changes, delete the user threshold from the definition of "covered provider," replace the term "AI detection tool" with "disclosure verification tool," delete the above-described requirement of a covered provider to offer the user the option to include a manifest disclosure in content, and additionally require a covered provider to include in the above-described latent disclosure whether the GenAI system created or altered the content. The bill would delay CATA's operation with respect to a GenAI system that is designed to primarily function as assistive technology, as defined, would prohibit a covered provider from falsely representing that a GenAI system is designed to primarily function as assistive technology, and would punish a covered provider who makes such a false representation with a certain civil action, as specified. This bill would declare that it is to take effect immediately as an urgency statute.
Bill status passed both 4 of 5 stages cleared
Introduction
Feb 2026
Committee Review
Jul 2026
Senate Passage
May 2026
Assembly Passage
Aug 2026
Governor
Introduced Feb 9, 2026 Last action Aug 27, 2026
Maddy AI version diff · 5 comparisons

What changed between versions

08/30/26 - Enrolled SB1000 · 1 edit
MINOR
No substantive policy changes occurred between these two versions. The difference is purely presentational: the 'from' version is the formal enrolled bill document (with page numbers, signature blocks, and approval date lines), while the 'to' version is a web page rendering of the same enacted text with navigation elements, metadata, and status information added around it.
TECHNICAL

The document changed from a formal enrolled bill format (with page numbers, Secretary/Clerk signature blocks, and blank approval date fields) to a web page layout that includes site navigation, bill status timeline, version history links, and a publication timestamp of 08/30/2026 09:00 PM. All substantive legislative text is identical.

Floor votes · Senate May 19, 2026 · Assembly Aug 25, 2026

How they voted

331
Passed · 6 other
Total votes 40
May 19, 2026
D Democratic30
30 Yea
100% Yea
R Republican10
3 Yea 1 Nay 6
30% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
26
Key actions
12
Committee
6
Amendments
7
Aug 27, 2026
Upper · Passed
Assembly amendments concurred in. (Ayes 39. Noes 0.) Ordered to engrossing and enrolling.
upper
Aug 25, 2026
Assembly · Passed
Assembly Vote: pass (71-0-7)
assembly
Aug 25, 2026
Introduced
In Senate. Concurrence in Assembly amendments pending.
upper
Aug 25, 2026
Lower · Passed
Read third time. Urgency clause adopted. Passed. Ordered to the Senate.
lower
Aug 21, 2026
Lower · Passed
Read third time and amended.
lower
Jul 1, 2026
Lower · Passed
From committee: Do pass. (Ayes 10. Noes 0.) (July 1).
lower
Jun 17, 2026
Lower · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 15. Noes 0.) (June 16). Re-referred to Com. on APPR.
lower
Jun 9, 2026
Lower · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on P. & C.P.
lower
May 26, 2026
Committee
Referred to Com. on P. & C.P.
lower
May 19, 2026
Senate · Passed
Senate Vote: pass (33-1-6)
senate
May 19, 2026
Upper · Passed
Read third time. Urgency clause adopted. Passed. (Ayes 33. Noes 1. Page 4345.) Ordered to the Assembly.
upper
May 14, 2026
Upper · Passed
From committee: Do pass. (Ayes 5. Noes 0. Page 4260.) (May 14).
upper
Apr 14, 2026
Upper · Passed
From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 1. Page 3843.) (April 13). Re-referred to Com. on APPR.
upper
Mar 26, 2026
Upper · Passed
From committee with author's amendments. Read second time and amended. Re-referred to Com. on P., D.T., & C.P.
upper
Feb 18, 2026
Committee
Referred to Com. on P., D.T., & C.P.
upper
Feb 9, 2026
Introduced
Introduced. Read first time. To Com. on RLS. for assignment. To print.
upper
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Josh Becker
Josh Becker
DDemocratic
CA
13