On September 17, California Governor Gavin Newsom signed Assembly Bill 144 (AB 144) into law, a move in response to recent changes in immunization recommendations by the U.S. Food and Drug Administration (FDA). The bill, which took effect immediately, mandates that health plans cover a wide range of preventive care services, including immunizations, without cost-sharing or utilization management. This legislation is particularly noteworthy for its implications on vaccine coverage requirements.


