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

New Jersey's A1883 bill prohibits social media platforms from using features or practices known to cause addiction in users under 18, such as infinite scroll or autoplay that leads to obsessive use causing harm. Platforms must conduct annual third-party audits to prove they don’t use addictive features, and if audits reveal risks, they must fix them within 30 days. Small platforms (under $100 million annual revenue) and those primarily for gaming are exempt from these requirements. Violations could result in civil penalties up to $250,000 per offense, but the bill explicitly excludes liability for user-generated content or conduct protected by federal law.