Glossary and reference index.

The legal process of converting a manufactured home from chattel (personal property) to real property. Involves surrendering the home's state-issued title to the DMV or DOR and recording the home as part of the underlying real estate in the county deed records. Required for FHA financing. Engineering side is governed by PFGMH § 3; legal side is state-specific.

A structural device buried in the ground that resists uplift, overturning, and lateral loads on a manufactured home during wind events. Most common types: helical (auger) anchors, driven rod anchors, concrete-deadman anchors. PFGMH specifies allowed types, embedment depths, and strap configurations.

The American Society of Civil Engineers' standard for minimum design loads on buildings and structures — the broader engineering reference for wind, snow, seismic, and dead/live loads. PFGMH design assumptions reference ASCE 7 for load parameters.

The exterior red metal placard installed on each transportable section of a manufactured home at the factory, certifying compliance with HUD Manufactured Home Construction and Safety Standards. One per section. F4 verifies presence. Missing labels require IBTS replacement process.

A manufactured home that has not been converted to real property — still classified as personal property, titled like a vehicle. Cannot be mortgaged in the conventional sense. Conversion from chattel to real property is the affixation process; required for FHA financing.

A HUD-authorized third party that reviews and approves manufacturer designs for compliance with HUD Manufactured Home Construction and Safety Standards before production. DAPIAs approve the home's blueprints; IPIAs verify production conforms to the approved design.

The interior label installed at the factory carrying the home's serial number, manufacturer, model, date of manufacture, design loads, wind zone, and roof load zone. Typically located inside a master bedroom closet door, kitchen cabinet, or electrical panel. F3 verifies presence and content. Missing data plates require LOPV process.

The concrete or masonry base beneath each pier that spreads the pier's load over a larger soil area and extends below the local frost line. PFGMH specifies dimensions based on pier load and soil bearing capacity. Default sizing: 16" × 16" × 4" precast for typical pier loads.

Informal industry term for a manufactured home built to the federal HUD Code (post-June 15, 1976). Distinguishes from "modular" homes (built to state and local building codes in factory) and from pre-1976 "mobile homes." Eligible for FHA, conventional, USDA, VA financing.

A HUD regional Homeownership Center. Four nationwide: Atlanta, Denver, Philadelphia, Santa Ana. Each handles FHA case escalations, conditional-approval reviews, and program guidance for its geographic region. For our seven-state footprint, Denver handles MO, AR, KS, IA, NE; Atlanta handles some IL and IN work.

The federal construction standard for manufactured homes, effective June 15, 1976, administered by HUD. Preempts state and local building codes for the home itself (site work and additions remain state/local). Homes built to HUD Code are eligible for FHA, conventional, USDA, and VA financing; pre-1976 mobile homes are not.

HUD's consolidated FHA origination, underwriting, and servicing handbook. Section II.D.4.b governs manufactured-housing structural certification. The single most-cited reference in FHA-MH pipeline work. Available on HUD.gov.

The HUD-authorized third-party administrator for the manufactured-housing labeling program. Issues replacement HUD certification labels when originals are missing, damaged, or never installed. Replacement process typically 2–6 weeks; success rate varies with home age.

A HUD-authorized third party that inspects manufactured homes at the factory during and after production to verify compliance with the DAPIA-approved design and the HUD Code. The IPIA's records are part of the home's manufacturing history — relevant when reconstructing build records for IBTS replacement labels.

A letter from a manufactured home's original manufacturer (or successor entity) re-issuing the data-plate content based on factory build records. Used when the interior HUD data plate is missing, illegible, or painted over. Typical timeline 1–3 weeks; cost $125–$250 on top of structural cert.

On a double-section (or larger multi-section) manufactured home, the line along which the two transportable sections are joined at installation. Piers must be installed under the marriage line at 6'0" o.c. maximum to support the section join. One of the most common F1 failure points: missing or settled marriage-line piers.

A formal policy update from HUD to FHA-approved lenders, refining or modifying the operative handbook (HUD 4000.1). Mortgagee Letters take effect on specified dates and supplement the consolidated handbook. Check HUD.gov for current MLs affecting manufactured-housing certification.

HUD's engineering reference document for manufactured-home foundation systems. Section 3 covers piers, footings, soil bearing, anchoring, skirting, vapor barriers, and removal of running gear. HUD 4000.1 § II.D.4.b.i (F1) defers to PFGMH § 3 for engineering criteria. Last major revision 1996, with periodic technical bulletins.

A vertical structural column between the home's main steel I-beam and its footing. Carries the home's dead and live load down to the soil through the footing. Common types: dry-stacked CMU, mortared masonry, ABS plastic adjustable, steel adjustable, site-built concrete. PFGMH § 3.2 specifies allowed types and spacing.

A manufactured home that has been converted from chattel through the affixation process — title surrendered, home recorded as part of the underlying real estate. Eligible for mortgage financing including FHA.

HUD's roof live-load classification for manufactured homes by geographic snow exposure. North: 40 psf; Middle: 30 psf; South: 20 psf. The home's data plate states its zone; installation site has its own zone per HUD map. Home zone must be equal to or more severe than site zone.

The towing equipment attached to a manufactured home for over-the-road transport. PFGMH § 3.5 requires removal as part of permanent-foundation conversion. Wheels stored on-site, hitches still attached, or axles propped against the home constitute F6 findings.

The perimeter enclosure around the crawl space between the manufactured home and the ground. PFGMH § 3.6 requires durable materials (vinyl, hardboard, masonry), proper ventilation, and an access opening. Vinyl skirting is most common.

A continuous polyethylene sheet (6-mil minimum) covering the ground inside the skirting perimeter, limiting moisture migration from soil into the crawl space. PFGMH § 3.6 requires it as part of the perimeter-enclosure system. Seams overlap 12" minimum; extends up the inside of skirting 4–6 inches.

HUD's basic-wind-speed classification for manufactured homes by geographic wind exposure. Zone I: ≤ 70 mph (most U.S. interior, including MO, AR, IL, KS, IA, NE, IN); Zone II: 100 mph; Zone III: 110+ mph (hurricane-prone coastal regions). Home's plate zone must be equal to or more severe than site zone.