(a) The Commissioner is charged with the duty of enforcing this article and rules, regulations, and standards adopted and promulgated under this article in establishments that have the majority of square footage of building floor space used for the operation of food sales as defined in Code Section 26-2-21. The measurement of square footage shall consider indoor and outdoor dining areas as part of food service as defined in Code Section 26-2-370. The Commissioner shall employ the necessary personnel and shall fix their compensation and prescribe their duties. Duly authorized representatives are authorized to enter upon and inspect the premises of any food sales establishment.

(b) Notwithstanding any other provision of this article, food service establishments as defined in Code Section 26-2-370 shall be inspected and regulated under Article 13 of this chapter and shall not be subject to inspection or enforcement under this article.