CA SB1144

Revises the definition of "high-volume third-party seller" to include transactions "utilizing" an online marketplace rather than requiring the marketplace to process payment, effective July 1, 2025.

Requires online marketplaces to establish and maintain policies prohibiting sale of stolen goods, including account suspension or termination for violations.

Requires online marketplaces to provide mechanisms for individuals to report suspected stolen goods sales and for law enforcement to communicate confidentially with the marketplace.

Requires online marketplaces to alert local, regional, or state law enforcement agencies in California when they know or should know a seller is selling stolen goods to California residents.

Expands civil enforcement authority to include district attorneys, city attorneys, and county counsels in addition to the Attorney General, with penalties up to $10,000 per violation plus attorney's fees and injunctive relief.