California SB 942
From State AI laws: enacted, with proof: Which US states have enacted laws about AI systems, when do they start, who enforces them, and what is the penalty?
State: California
The state whose legislature passed the law.
The people of the State of California do enact as follows
Source: https://web.archive.org/web/20261028042836/https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240SB942. Read 2026-11-01. Checked by a second reader.
Law: Senate Bill No. 942, Chapter 291
The act's name, or its bill and chapter, as the state's own text gives it.
Senate Bill No. 942 CHAPTER 291
Source: https://web.archive.org/web/20261028042836/https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240SB942. Read 2026-11-01. Checked by a second reader.
Subject: California AI Transparency Act
A short label, in the text's own words, for what the law regulates.
This chapter shall be known as the California AI Transparency Act
Source: https://web.archive.org/web/20261028042836/https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240SB942. Read 2026-11-01. Checked by a second reader.
Signed: September 19, 2024
The date the governor signed, as the official record writes it. Dates are left in the form the source uses.
Approved by Governor September 19, 2024
Source: https://web.archive.org/web/20261028042836/https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240SB942. Read 2026-11-01. Checked by a second reader.
Takes effect: August 2, 2026
When the law says its duties begin, in its own words. Some laws start in stages, and the quote shows which duty the date belongs to. Blank if the text gives no date and no official page states one.
This chapter shall become operative on August 2, 2026
Source: https://web.archive.org/web/20260929211636/https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260AB853. Read 2026-11-01. Checked by a second reader.
Applies to: a person that creates, codes, or otherwise produces a generative artificial intelligence system that is publicly accessible
Who has duties, in the law's own words. A law with several parts shows the part named in its quote.
“Covered provider” means a person that creates, codes, or otherwise produces a generative artificial intelligence system that is publicly accessible within the geographic boundaries of the state
Source: https://web.archive.org/web/20261002013335/https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260SB1000. Read 2026-11-01. Checked by a second reader.
Enforced by: the attorney general, a city attorney, or a county counsel
Who enforces it, as stated. Where the text only makes a violation part of another act, that act is shown. Blank if the text doesn't say.
to be collected in a civil action filed by the Attorney General, a city attorney, or a county counsel
Source: https://web.archive.org/web/20261002013335/https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260SB1000. Read 2026-11-01. Checked by a second reader.
Maximum penalty: fifty thousand dollars ($50,000) per violation
The highest civil penalty stated, in the law's words. Blank if the text names no amount. Damages in a private suit and penalties set by another act don't count.
A violator of subdivision (d) of Section 22757.3 shall be liable for a civil penalty in the amount of fifty thousand dollars ($50,000) per violation
Source: https://web.archive.org/web/20261002013335/https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260SB1000. Read 2026-11-01. Checked by a second reader.
Private right of action: Not stated
Yes or no only where the text says so plainly. Blank otherwise, including where a law just points to a consumer protection act.
No source we could use stated this. A blank never means no.
Latest change: SB 1000 by Senator Josh Becker: California AI Transparency Act
The newest amendment, delay, repeal or replacement found in an official source. Blank with the places we looked if none was found, which doesn't prove there is none.
SB 1000 by Senator Josh Becker (D‑Menlo Park) — California AI Transparency Act
Source: https://www.gov.ca.gov/2026/09/30/californias-nation-leading-ai-framework-just-got-stronger-governor-newsom-signs-more-first-in-the-nation-worker-protections-and-more/. Read 2026-11-01. Checked by a second reader.