| State | Program | What it covers |
|---|---|---|
| California | Department of Housing and Community Development, Factory-Built Housing program | Plan approval by an HCD-certified design approval agency, in-plant inspection by an HCD-certified quality assurance agency, and an HCD insignia before shipping. Local departments handle site installation. |
| Texas | Department of Licensing and Regulation, Industrialized Housing and Buildings program | In-plant inspection by approved third-party inspection agencies, which may be unannounced. TDLR also publishes rules for site inspections of the installation. |
| Maryland | Division of Labor and Industry, Building Codes Administration | Explains how modular buildings differ from HUD-code manufactured homes and how they are regulated in the state. |
Every other state
We only list states where we have checked the official program page ourselves. For any other state, the Modular Building Institute keeps a directory of state program administrators and contacts. Rules change, so confirm details with the state office and your local building department. Background: our guide to state programs and codes.
AdThis space is available to one sponsor.Advertise
Newsletter
The Offsite Brief
One email a week. New guides, vendors added to the directory, plant openings and product releases, each with a link to the source. Free. Unsubscribe any time.