As used in this part, the term:

(1) "Commissioner" means the Georgia Safety Fire Commissioner.

(2) "Dealer" means any person who sells or offers for sale to consumers three or more new or used manufactured homes or mobile homes in a 12 month period. Such term shall not include a person who sells or offers for sale one or more manufactured homes or mobile homes in conjunction with the transfer of an interest in land.

(3) "Manufactured home" means a structure, transportable in one or more sections, which, in the traveling mode, is eight body feet or more in width or 40 body feet or more in length or, when erected on site, is 320 or more square feet and which is built on a permanent chassis and designed to be used as a dwelling with or without a permanent foundation when connected to the required utilities and includes the plumbing, heating, air-conditioning, and electrical systems contained therein; except that such term shall include any structure which meets all the requirements of this paragraph except the size requirements and with respect to which the manufacturer voluntarily files a certification required by the secretary of housing and urban development and complies with the standards established under the National Manufactured Housing Construction and Safety Standards Act of 1974, 42 U.S.C. Section 5401, et seq.

(4) "Manufacturer" means any person who constructs or assembles manufactured housing.

(5) "Mobile home" means a structure, transportable in one or more sections, which, in the traveling mode, is eight body feet or more in width or 40 body feet or more in length or, when erected on site, is 320 or more square feet and which is built on a permanent chassis and designed to be used as a dwelling with or without a permanent foundation when connected to the required utilities and includes the plumbing, heating, air-conditioning, and electrical systems contained therein and manufactured prior to June 15, 1976.