Marijuana in Federally Assisted Housing Parity Act of 2025

This bill amends federal housing laws to ensure that tenants using marijuana legally under state law are not discriminated against in federally assisted housing. It removes federal prohibitions on state-compliant marijuana use, distribution, possession, sale, or manufacture from definitions of "drug-related criminal activity" and "illegal use of a controlled substance" in housing regulations. Public housing agencies and federally assisted housing providers must now follow state marijuana laws and cannot deny admission or evict tenants based solely on legal state-legal marijuana activity. The bill also requires HUD to establish smoke-free zones for marijuana similar to existing tobacco rules within 90 days of enactment.