The "Artificial Intelligence Synthetic Content Accountability Act" establishes civil and criminal enforcement mechanisms to address the misuse of synthetic content generated by artificial intelligence. The bill defines key terms, including "covered synthetic content," and outlines the responsibilities of content providers to label and watermark such materials. It introduces civil liability for the nonconsensual dissemination of covered synthetic content, allowing individuals to seek damages if their likeness is used without consent in a harmful manner. Additionally, the act specifies defenses against liability and ensures the protection of plaintiffs' privacy during legal proceedings. Criminal liability is also established for knowingly disseminating harmful synthetic content, classifying such actions as a fourth-degree felony, with enforcement powers granted to the attorney general and district attorneys.

Moreover, the bill mandates large online platforms to verify user identities before posting synthetic content, requiring reasonable methods of verification for fully synthetic, partially synthetic, or possibly covered synthetic content. This verification must occur each time a user attempts to post such content or if more than sixty minutes have elapsed since the last verification. The act emphasizes the protection of users' sensitive information obtained during this process and restricts its use to compliance with verification requirements. It also outlines conditions for disclosing user information obtained through verification, necessitating a court order for both civil and criminal cases, and includes a severability clause to maintain the enforceability of remaining provisions if any part of the act is invalidated.