What is the difference between a manufactured home and a modular home?

A manufactured home (also known as a mobile home) is a single or multi-sectional home built on a permanent frame, like
a steel undercarriage/chassis, 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 using conventional home floor joists and delivered to a site on a trailer or flat
bed truck. The delivered home 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 in one piece. The home, panels or pre-cut panels are lifted from the
trailer and attached to a foundation. 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.