210 ILCS 115/2.1
"Manufactured home" means a factory-assembled, completely integrated structure designed for permanent habitation, with a permanent chassis, and so constructed as to permit its transport, on wheels temporarily or permanently attached to its frame, and is a movable or portable unit that is (i) 8 body feet or more in width, (ii) 40 body feet or more in length, and (iii) 320 or more square feet, constructed to be towed on its own chassis (comprised of frame and wheels) from the place of its construction to the location, or subsequent locations, at which it is connected to utilities for year-round occupancy for use as a permanent habitation, and designed and situated so as to permit its occupancy as a dwelling place for one or more persons, and specifically includes a "manufactured home" as defined in subdivision (53) of Section 9-102 of the Uniform Commercial Code. The term shall include units containing parts that may be folded, collapsed, or telescoped when being towed and that may be expected to provide additional cubic capacity, and that are designed to be joined into one integral unit capable of being separated again into the components for repeated towing. The term excludes campers and recreational vehicles. The term "mobile home" shall not include modular homes and their support systems. The words "mobile home" and "manufactured home" are synonymous for the purposes of this Act.
210 ILCS 115/2.1