What is a manufactured home and how does it differ from a modular home?

A manufactured home is a single or multi-sectional home constructed in a factory and built to the guidelines of HUD.  It is attached to a permanent frame, with a removable transportation system (hitch and wheels). The unit is permanently attached to a site-built foundation and is subject to the 1976 federal standards established by the Department of Housing and Urban Development (HUD).

A modular home is constructed in a factory, and constructed according to the local IRC codes. The delivered home may or may not be attached to a permanent frame.  It may be in the form of panels that are assembled at the site, may be pre-cut and assembled on site, or may be pre-built and delivered and set on a pier system foundation (on-frame modular), or crane set on a load-bearing perimeter foundation (off-frame modular).  A modular home may be single or multi-storied. Modular homes are not subject to HUD standards, but must be built to state and local Uniform Building Codes.