Restricts use and sale of algorithmic devices for establishing rent price or occupancy of residential property.

New Jersey's A-3989 prohibits landlords from using or purchasing algorithmic software that sets, recommends, or advises on residential rent prices or occupancy rates. It specifically bans tools analyzing non-public competitor data (like actual rent prices or lease details from other landlords) to coordinate pricing, including AI-based systems. The bill exempts aggregated rental reports published by trade associations and tools used for government affordable housing programs. Violations trigger penalties under New Jersey's Antitrust Act, such as fines up to $500 per day per unit or criminal charges, and do not restrict landlords from setting rents based on public data or internal management.