Housing Supply Expansion Act of 2025

S 2414, the Housing Supply Expansion Act of 2025, updates federal rules for manufactured homes by requiring states to treat homes without permanent chassis equally to those with chassis under state laws. States must certify this parity within 1-2 years of the bill’s enactment, covering areas like financing, insurance, and installation. States that miss deadlines face prohibitions on selling or installing "covered" manufactured homes (built after enactment without a permanent chassis). The bill directly affects states (through their regulations), manufactured home manufacturers, sellers, and buyers by standardizing how these homes are regulated nationwide.