On Monday, California Governor Gavin Newsom signed the Transparency in Frontier Artificial Intelligence Act into law, requiring AI companies to disclose their safety practices while stopping short of mandating actual safety testing. The law requires companies with annual revenues of at least $500 million to publish safety protocols on their websites and report incidents to state authorities, but it lacks the stronger enforcement teeth of the bill Newsom vetoed last year after tech companies lobbied heavily against it.

The legislation, S.B. 53 , replaces Senator Scott Wiener's previous attempt at AI regulation, known as S.B. 1047 , that would have required safety testing and "kill switches" for AI systems. Instead, the new law asks companies to describe how they incorporate "nati

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