A park model RV (also known as a recreational park trailer) is a trailer-type RV that is designed to provide temporary accommodation for recreation, camping or seasonal use. PMRVs are built on a single chassis, mounted on wheels and have a gross trailer area not exceeding 400 square feet in the set -up mode. PMRVs are most often used in recreational vehicle campgrounds. They may be owned by the campground and rented to guests, or they may be brought in and used exclusively by their owners on a site rented or leased from the campground. They can also be placed by their owners on private property. These RVs are used for recreational purposes only. They are not meant to be permanently affixed to the property, they do not improve property values in any way, and they are neither designed nor intended by their manufacturers to be used as permanent residences. Models range from $20,000 – $80,000.

A truck or multipurpose vehicle produced by an alterer or final stage manufacturer that contains modifications to which at least one Federal Motor Vehicle Safety Standard is applicable and is designed for the transportation of people for recreation or travel.