California SB 53: Transparency in Frontier Artificial Intelligence Act
Enacted in force
In plain English
- Frontier-model developers: training compute >10²⁶ operations, including qualifying modifications. Primary source
- Expanded safety-framework/reporting duties apply to large frontier developers, with affiliates' combined prior-year gross revenue >$500 million. Primary source
- Other transparency, incident, and employee-protection provisions reach frontier developers more broadly. Primary source
- Large frontier developers meet the applicable safety-framework and reporting duties. Primary source
- Covered frontier developers meet the applicable transparency, incident and employee-protection provisions. Primary source
Dates and phased obligations
January 1, 2026 Primary source
Questions from this record
Who does CA SB 53 cover?
Frontier-model developers: training compute >10²⁶ operations, including qualifying modifications. Expanded safety-framework/reporting duties apply to large frontier developers, with affiliates' combined prior-year gross revenue >$500 million. Other transparency, incident, and employee-protection provisions reach frontier developers more broadly. Primary source
What is the law’s status?
Enacted / in force Primary source
What date does this record track?
January 1, 2026 Primary source
Has this record been verified?
This record’s accepted facts were last reviewed on 2026-11-13; unsupported comparison fields remain Unverified. Primary source
Verification history
Not legal advice. This page restates the linked record and does not determine whether a particular business is covered. Methodology and verification limits.