California AI regulations Gavin Newsom.

California Gov. Gavin Newsom has signed into law legislation aiming to increase transparency and prevent AI models from being used to cause catastrophic harms. The law, signed Monday, requires AI companies to disclose safety protocols for their most advanced models and report safety incidents to the state within 15 days. Some tech companies opposed the legislation, arguing for federal regulation. Proponents said the guardrails are needed to prevent catastrophic harms from the technology that has had little oversight. Newsom said the law establishes regulations without hurting the state’s homegrown industry. The signing comes after Republicans in Congress unsuccessfully tried to temporarily ban states from regulating AI.