Tennessee Code Title 5. Counties § 5-20-103

(a) The adopting resolution may also incorporate by reference the administrative provisions of any code, or may include in the adopting resolution any suggested administrative provisions found in a code.

(b) If a code does not contain administrative provisions, the administrative provisions of another code may be adopted and included in such resolution.

(c) The powers and duties of enforcing the provisions of any code may be conferred upon such officials within the existing framework of the county government as the governing body may determine, such as, but not limited to, officials administering zoning and planning regulations of the county.