California cracks down on AI in the workplace with new worker‑protection laws

California Governor Gavin Newsom has signed a package of laws aimed at curbing how employers use artificial intelligence in the workplace. Enacted on September 30, the measures effectively ban companies from deploying AI systems that analyze workers’ biometric data — such as facial expressions, voice patterns or physiological signals — to infer their emotional state or mental fitness.

The new rules also require employers to provide written notice when AI tools are used in decisions about mass layoffs, and they prohibit firms from relying solely on automated systems to fire an individual employee. Human review and accountability must remain part of the process. Lawmakers say the move responds to growing concern over “productivity scoring” and emotion‑tracking software that turns cameras and wearables into continuous monitoring tools.

With no comprehensive federal framework governing AI and labor, US regulation is increasingly emerging at the state level in a patchwork fashion. California, home to many of the world’s largest tech companies, is likely to set an influential benchmark: companies operating nationwide may adapt their practices to meet the state’s stricter standards, and the law could feed into broader debates in Washington and abroad about how far AI‑driven management should be allowed to go.