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California AI Transparency Act (SB 942, amended by AB 853)

California SB 942, as amended by AB 853, makes generative-AI transparency duties operative August 2, 2026 for covered providers and adds separate duties for large online platforms, GenAI hosting platforms, and capture-device manufacturers on later dates.

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  1. 概要
  2. ディープダイブ
  3. 戦略的影響
  4. The Future of California AI Transparency Act (SB 942, amended by AB 853)
  5. 現実世界の実装
  6. リスクとガードレール
  7. 実装ロードマップ
  8. 探検を続けましょう
  9. よくある質問

概要

SB 1000 proposed further changes but remained pending before the Governor on September 26, 2026.

ディープダイブ

California enacted SB 942 as the AI Transparency Act in 2024. AB 853, chaptered in 2025, moved the Act’s main operative date to August 2, 2026 and added later duties for other actors. SB 942 remains law as amended. A “covered provider” creates a publicly accessible GenAI system with more than one million monthly California visitors or users. It must offer a free detection tool for image, video, and audio content its system created or altered. The tool must expose system provenance data, protect personal provenance data, and support uploads or URLs and API access. Providers must offer an optional visible manifest and, when technically feasible, embed a latent disclosure containing provider, system, version, timestamp, unique ID, and whether it created or altered the content. A signal is not a truth guarantee. AB 853 adds distinct actors and dates. Starting January 1, 2027, large online platforms (defined in the act, including a more-than-two-million monthly-user threshold) must detect compliant provenance, make it inspectable, and avoid knowingly stripping it when technically feasible. Also from January 1, 2027, a GenAI hosting platform that makes source code or model weights downloadable by California residents may not knowingly offer a system that fails to place required disclosures. From January 1, 2028, capture-device manufacturers must offer a disclosure option and embed latent disclosures by default in covered devices first sold in California on or after that date, subject to feasibility and standards. AB 853 changed license handling: within 72 hours after learning that an identifiable licensee made the system noncompliant, a provider must terminate authorization or notify the licensee. The licensee then has 96 hours to restore compliance or stop use and report its action; the provider reports noncompliance to the Attorney General if required. SB 1000 was enrolled and presented to the Governor on September 2, 2026, but had not been chaptered as of September 26; its proposed changes are not current law.

戦略的影響

リスクと安全性

AI による壊滅的な被害も日常的な被害も、誰がリスクを理解し、誰が行動できるかにかかっています。

より明確な判決

国民と専門家のリテラシーは、強力な安全政策が政治的に可能かどうかを左右します。

誇大広告を打ち破る

明確な説明は、誇大広告、研究室の PR、曖昧な倫理劇場に囚われることを減らします。

The Future of California AI Transparency Act (SB 942, amended by AB 853)

SB 942’s provider requirements became operative on August 2, 2026. AB 853 phases in platform and hosting duties on January 1, 2027 and capture-device duties on January 1, 2028. SB 1000 was pending before the Governor as of September 26, 2026; its proposed changes are not current law. Recheck its chapter status before a later release. The proposal could alter the user threshold and disclosure rules. Test provenance against current standards and common media transformations, and describe each tool’s limits.

現実世界の実装

A covered image generator embeds a machine-readable latent disclosure containing provenance information when technically feasible and reasonable.

A provider offers an accessible, no-cost tool that checks its outputs for a provider-specific latent disclosure.

A provider lets a user choose a visible manifest disclosure that is clear and appropriate for the medium.

A covered provider documents when it discovered a licensee broke disclosure capability, then meets AB 853’s 72-hour notice-or-termination step and tracks the licensee’s 96-hour response.

リスクとガードレール

  • 能力が複雑になる一方で、実存的なリスクを SF として扱います。

  • 高度な自律性の下での調整による表面製品の安全性を混乱させる。

  • 英語以外や専門家ではない聴衆には、低品質の情報源しか提供されません。

実装ロードマップ

  1. 製品の危害、誤使用、制御不能/調整不良のリスクを分離します。

  2. どのような証拠がタイムラインと重大度についてのあなたの見方を変えるかを尋ねてください。

  3. マーケティング上の主張よりも、一次情報源と具体的な評価を優先します。

  4. 意識だけでなく、キャリア、政策、資金、スキルなど、行動経路を 1 つ特定します。

探検を続けましょう

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よくある質問

What is California AI Transparency Act (SB 942, amended by AB 853)?

California SB 942, as amended by AB 853, makes generative-AI transparency duties operative August 2, 2026 for covered providers and adds separate duties for large online platforms, GenAI hosting platforms, and capture-device manufacturers on later dates. SB 1000 proposed further changes but remained pending before the Governor on September 26, 2026.

When did California’s SB 942 transparency requirements become operative after AB 853?

AB 853 amended section 22757.6 to make the California AI Transparency Act operative on August 2, 2026.

Which provider threshold appears in the covered-provider definition?

The statute includes a more-than-one-million monthly California user or visitor threshold for covered providers of publicly accessible systems.

Which feature is a latent disclosure under SB 942?

The act requires latent disclosures that convey provenance in covered generated or altered content when feasible and reasonable.

Which function does a manifest disclosure provide?

A manifest disclosure is a visible, understandable notice users can choose to include in content.

What must a covered provider do within 72 hours after learning that an identifiable licensee made its system noncompliant?

AB 853 gives the covered provider 72 hours to terminate authorization or notify the licensee; after notice, the licensee has 96 hours to restore compliance or stop use and report its action.