Prohibits use of deceptive marketing practices by substance use disorder treatment providers.

New Jersey's A3974 prohibits substance use disorder treatment providers from using deceptive marketing practices. The bill requires all advertising to include accurate, plain-language details about services, locations, and contact information (including phone numbers and addresses), and bans false claims about network status, geographic location, or affiliations with other providers without written consent. Violations carry civil penalties up to $20,000 per incident, and affected individuals may sue for triple damages plus attorney fees. This directly affects licensed treatment facilities, certified providers, and recovery residences offering substance use disorder services within the state.