State of California

California's Transparency in Frontier AI Act (SB 53) requires large frontier developers to publish frontier AI frameworks addressing catastrophic risk, model weight cybersecurity and incident response, and to report critical safety incidents to the Office of Emergency Services. Its catastrophic risk definition includes a model engaging, with no meaningful human oversight, in conduct that is a cyberattack, where a single incident causes death or serious injury to more than 50 people or more than $1 billion in property damage.