Journalist briefing pack

California SB 942: AI Transparency Act

Deadline-ready summary derived from the Policy Window catalog. Every claim cites a primary source. As of 2026-06-17.

Key finding

Editorial summary pending editorial backfill (on the roadmap; see /wiki/roadmap). For now, see the full article lead paragraph.

Pull quote (operative text)

Verbatim pull quote pending editorial backfill (on the roadmap; see /wiki/roadmap) (Coverage Games provision-anchor pass). Use the primary source URL in the infobox of the full article to pull a verbatim excerpt under the article's reporting deadline.

Topics this instrument addresses

governs
Transparency Obligations— Cal. Bus. & Prof. Code § 22757.2(a) (added by SB 942) — a covered provider must make available, free and publicly accessible, an AI detection tool that lets a user assess whether image/video/audio content was created or altered by that provider's GenAI system; reinforced by § 22757.3(a) manifest-disclosure user option
governs
Open-Weight Frontier Release— Cal. Bus. & Prof. Code § 22757.3(c) (added by SB 942, operative Aug. 2, 2026) — a covered provider that LICENSES its GenAI system to a third party must require by contract that the licensee preserve the § 22757.3(b) disclosure capability, and must revoke the license within 96 hours if the licensee disables it; reinforced by § 22757.3.2 (added by AB 853, operative Jan. 1, 2027), which bars a GenAI hosting platform distributing a system's source code or model weights from knowingly hosting a non-disclosing system
governs
Synthetic Content Provenance— Cal. Bus. & Prof. Code § 22757.3(b) (added by SB 942) — a covered provider must embed a machine-readable 'latent' disclosure in AI-generated image/video/audio conveying provenance metadata: provider name, GenAI system name and version, creation/alteration time, and a unique identifier; reinforced by § 22757.3.1 (AB 853, operative 2027) barring large online platforms from knowingly stripping system provenance data
implicit
Foundation Models / GPAI— No operative provision regulates foundation models as a class; the regulated party ('covered provider', § 22757.1) is defined by an output/scale hook — a producer of a publicly-accessible GenAI system with over 1,000,000 monthly users — so a foundation-model producer is reached only incidentally via the § 22757.2–.3 output-disclosure duties, not by any model-level obligation
implicit
Deepfakes / Synthetic Content— 'Deepfake' appears only in the SB 942 Legislative Counsel's Digest (a recital about a separate law), never in operative §§ 22757.1–22757.4; a deepfake produced by a covered provider's GenAI system is nonetheless a subset of the AI-generated image/video/audio reached by the § 22757.3(b) latent-disclosure and § 22757.2 detection duties

Cite this briefing

MLA (9th edition)

Policy Window. "California SB 942: AI Transparency Act." Policy Window AI Governance Catalog, 2026-06-17, https://policywindow.org/wiki/ca-sb-942?asOf=2026-06-17.

AP (current style — newsroom-grade)

Policy Window AI Governance Catalog, "California SB 942: AI Transparency Act," accessed 2026-06-17, https://policywindow.org/wiki/ca-sb-942?asOf=2026-06-17.

Chicago (17th edition, notes-bibliography)

Policy Window, "California SB 942: AI Transparency Act," Policy Window AI Governance Catalog, accessed 2026-06-17, https://policywindow.org/wiki/ca-sb-942?asOf=2026-06-17.

APA (7th edition, author-date)

Policy Window. (2026). California SB 942: AI Transparency Act [Snapshot 2026-06-17]. Policy Window AI Governance Catalog. https://policywindow.org/wiki/ca-sb-942?asOf=2026-06-17

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CC BY 4.0 content. Citation conventions documented at /wiki/citing-us.

What this briefing IS: a deadline-shaped slice of the typed catalog at /wiki/ca-sb-942. Key finding + pull quote + crosswalk are editor-curated when present; honest-empty when not. Charter §7.1.a holds: never advocacy framing.

What this briefing is NOT: a substitute for direct verification of primary sources before publication. Not legal advice (charter §7.4). Not real-time (editorial cadence).

Topics this instrument addresses

governs

Transparency Obligations— Cal. Bus. & Prof. Code § 22757.2(a) (added by SB 942) — a covered provider must make available, free and publicly accessible, an AI detection tool that lets a user assess whether image/video/audio content was created or altered by that provider's GenAI system; reinforced by § 22757.3(a) manifest-disclosure user option

governs

Open-Weight Frontier Release— Cal. Bus. & Prof. Code § 22757.3(c) (added by SB 942, operative Aug. 2, 2026) — a covered provider that LICENSES its GenAI system to a third party must require by contract that the licensee preserve the § 22757.3(b) disclosure capability, and must revoke the license within 96 hours if the licensee disables it; reinforced by § 22757.3.2 (added by AB 853, operative Jan. 1, 2027), which bars a GenAI hosting platform distributing a system's source code or model weights from knowingly hosting a non-disclosing system

governs

Synthetic Content Provenance— Cal. Bus. & Prof. Code § 22757.3(b) (added by SB 942) — a covered provider must embed a machine-readable 'latent' disclosure in AI-generated image/video/audio conveying provenance metadata: provider name, GenAI system name and version, creation/alteration time, and a unique identifier; reinforced by § 22757.3.1 (AB 853, operative 2027) barring large online platforms from knowingly stripping system provenance data

implicit

Foundation Models / GPAI— No operative provision regulates foundation models as a class; the regulated party ('covered provider', § 22757.1) is defined by an output/scale hook — a producer of a publicly-accessible GenAI system with over 1,000,000 monthly users — so a foundation-model producer is reached only incidentally via the § 22757.2–.3 output-disclosure duties, not by any model-level obligation

implicit

Deepfakes / Synthetic Content— 'Deepfake' appears only in the SB 942 Legislative Counsel's Digest (a recital about a separate law), never in operative §§ 22757.1–22757.4; a deepfake produced by a covered provider's GenAI system is nonetheless a subset of the AI-generated image/video/audio reached by the § 22757.3(b) latent-disclosure and § 22757.2 detection duties