California has taken another significant step in regulating artificial intelligence with the signing of Senate Bill 813 (SB 813) and Assembly Bill 1405 (AB 1405) on September 9, 2026. Together, the new laws establish a framework for independent third-party evaluation and auditing of artificial intelligence systems. SB 813 establishes a framework for independent verification organizations, while AB 1405 creates a state registry for AI auditors and establishes standards concerning their independence, transparency, and integrity. The legislation adds another component to California’s developing regulatory framework for artificial intelligence and reflects the state’s increasing focus on independent oversight, transparency, and accountability as AI technology becomes more widely used.