Removing the Permanent Chassis is a Game Changer for Manufactured Housing

For too long, manufactured housing has been defined in federal law by a design requirement limits innovation and restricts where manufactured housing can be deployed, even though today’s homes meet some of the most rigorous construction and safety standards in the country.

Congress now has an opportunity to modernize that definition. By allowing HUD Code manufactured homes to be built with or without a permanent chassis, lawmakers can unlock innovation across the industry and expand the role manufactured housing can have in addressing the nation’s housing supply shortage. This reform is not about deregulation. It is about removing an outdated design mandate so modern construction techniques can be fully utilized under the existing federal building code.

Manufactured homes are already built to a national construction and safety code administered by HUD, which governs structural integrity, wind resistance, fire safety, energy efficiency, durability, and installation. Removing the chassis requirement allows HUD Code builders to design homes suited to a broader range of settings without altering oversight or safety requirements in any way. Homes built without a permanent chassis will continue to meet HUD’s construction standards and federal installation requirements and remain subject to the same enforcement framework as today’s homes.

Any new technical requirements associated with homes built without a chassis will be developed through the Manufactured Housing Consensus Committee, the federal advisory body created by Congress to recommend construction and safety standards. HUD and the committee have already used this rigorous, consensus‑driven process to approve multi‑story HUD Code homes and two‑ to four‑unit manufactured housing designs, and HUD is currently applying that same process to address removal of the chassis requirement for upper floors. Homes built entirely without a chassis will follow that established model.

The most significant impact of this reform is where manufactured housing becomes feasible. Homes without a chassis can be installed lower to the ground, improving curb appeal and neighborhood compatibility, which are factors that often determine local acceptance. Removing the chassis mandate allows manufactured housing to integrate more naturally into suburban and urban environments, especially in land‑constrained, high‑cost markets.

In places where land is expensive, going vertical is often the only way housing can pencil out. A two‑story manufactured home built to the HUD Code can be delivered at significantly lower cost while still meeting federal safety and quality standards. These designs also create new opportunities for rental housing, including vertically configured homes that increase density without expanding a project’s footprint.

At its core, removing the permanent chassis requirement is about scale. Manufactured housing is already one of the most efficient ways to produce high‑quality homes at attainable price points. Modernizing the statutory definition allows the industry to apply those efficiencies in more locations, with more design options, and in response to real‑world housing needs. That is why this reform is not incremental but a true game changer for meeting the housing supply needs of our nation.