SB 942 · What changed
SB 942 updates: what changed for covered providers
Every change to SB 942 since it was signed, newest first, and what it means for what you ship. Not legal advice. Get updates.
Dated log
Changes to the law
SB 1000 in force: what changed for providers
SB 1000 is in force: no user threshold, the disclosure verification tool replaces the AI detection tool (a compliant third-party tool is allowed), the visible-label option is gone, the latent disclosure has five fields, and licensee breaches need a response within 72 hours. AB 2713 changes platform duties from 1 January 2027.
Source: SB 1000 (Chapter 861) and AB 2713 (Chapter 856), Statutes of 2026
SB 942 is enforceable
SB 942 is enforceable from today: detection tool, latent disclosure and licensee contracts must be in place.
Source: AB 853, chaptered text
AB 853 signed
AB 853 signed. Provider duties now start on 2 August 2026, and platforms, GenAI hosts and capture device makers get duties of their own from 2027 and 2028.
Source: AB 853, chaptered text
SB 942 signed
SB 942, the California AI Transparency Act, signed and chaptered.
Source: SB 942, chaptered text (leginfo)
Editorial
Changes to this playbook
Topic pages and a dated updates log
Each part of the playbook now has its own page with the statute wording and common questions, and this updates log lists every change with its source.
Playbook updated for SB 1000 and AB 2713
Every step now reflects SB 1000 and AB 2713: no user threshold, the disclosure verification tool, the fifth latent-disclosure field, the 72-hour licensee rule and the amended platform duties.
Playbook launched
Playbook launched: checklists, exemption and coverage tests, and a sourced vendor comparison.
More of the playbook
Other sections
Seven steps to compliant
Every step from covered-provider status to the tool's retention statement, with the 72-hour licensee clock.
Open the checklist → Latent disclosure, § 22757.3(a)Five facts, hidden in every output
What every image, video and audio output must carry, and where each field lives.
The five fields → Verification tool, § 22757.2A free checker anyone can use
Run your own disclosure verification tool, or link a compliant third-party one.
Tool requirements → Vendors comparedScored against the statute, not a brochure
Verda, SynthID, Adobe Content Authenticity and Meta AudioSeal / Video Seal, row by row.
Compare vendors → AB 853 and AB 2713Who is next, and when
Large online platforms and GenAI hosting platforms from 1 January 2027, capture devices from 1 January 2028.
Dates and roles →