Prohibits social media platforms from using certain practices or features that cause child users to become addicted to platform.

New Jersey's S 1964 prohibits social media platforms from using design features or practices that cause children under 18 to become addicted, defining addiction as obsessive use causing physical, mental, or developmental harm. Platforms must conduct quarterly internal audits and hire annual third-party audits to identify and fix addictive features within 30 days, avoiding penalties of up to $250,000 per violation. The law exempts small platforms (under $100 million annual revenue) and gaming-focused platforms, while clarifying platforms aren’t liable for user-generated content or content protected under federal law. It directly affects all social media platforms serving child users in New Jersey, requiring proactive safety measures to prevent addictive user experiences.