As used in this article, the term:
provided, however, that for the purposes of this article, no agricultural vehicle, commercial vehicle operated by military personnel for military purposes, recreational vehicle, or fire-fighting or emergency equipment vehicle shall be considered a commercial motor vehicle. As used in this paragraph, the term "fire-fighting or emergency equipment vehicle" means an authorized emergency vehicle as defined in paragraph (5) of Code Section; provided, however, that the vehicle must be equipped with audible and visible signals and shall be subject to traffic regulations in accordance with the requirements of Code Section . As used in this paragraph, the term "agricultural vehicle" means a farm vehicle which is controlled and operated by a farmer, including operation by employees or family members; used to transport agricultural products, farm machinery, or farm supplies to or from a farm; and operated within 150 miles of such person's farm; which vehicle is not used in the operations of a common or contract carrier. Any other waiver by the Federal Motor Carrier Safety Administration pursuant to Federal Law 49 C.F.R. Parts 383 and 384 of the United States Department of Transportation shall supersede state law in authorizing the Department of Driver Services to exempt said classes.
OCGA § 40-5-142