Does California SB 53 (Frontier AI Transparency Act) require Transparency & Disclosure?

California • enforcing

Yes — 1 provision

Requirements at a glance

This regulation imposes 6 specific requirements for Transparency & Disclosure across 1 provision:

Frontier AI Framework Publication

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Obligation:
Transparency
enforcing
Effective:
Jan 1, 2026
Risk tier:
general-purpose
Scope:
Large frontier developers (annual gross revenue > $500M) for the framework, added risk summaries, and added transparency report content; all frontier developers for the basic model transparency report (§ 22757.12(c)(1))

Requirements

RequirementDetails
Publish frontier AI frameworkLFDs must write, implement, and clearly publish a frontier AI framework covering governance structures, catastrophic risk mitigation, cybersecurity practices, and standards alignment (§ 22757.12)
Annual reviewReview the framework at least annually and update it as appropriate (§ 22757.12(b)(1))
Material modificationPublish a materially modified framework and a justification for the modification within 30 days (§ 22757.12(b)(2))
Model transparency reportsBefore or when deploying a new or substantially modified frontier model, publish the model information required by § 22757.12(c); large frontier developers must also publish summaries of catastrophic-risk assessments, results, third-party evaluator involvement, and framework implementation steps
Internal-use risk summariesLarge frontier developers must transmit summaries of catastrophic-risk assessments from internal model use to OES every three months, or on another reasonable schedule communicated in writing (§ 22757.12(d))
Redaction allowanceFrontier developers may make necessary redactions to protect trade secrets, cybersecurity, public safety, or national security, or comply with law; describe their character and justification as permitted and retain unredacted information for five years (§ 22757.12(f))

Penalties

ViolationFine
Per violationUp to $1M
View full regulation View obligation Obligation matrix