14 CAR § 21-801. Generally

(a) Alternate systems outlined in this subpart shall not be approved as a uniform plan of development in any: (1) Municipality; (2) Community; (3) Subdivision; or (4) Other developed area. (b)(1) Alternate systems outlined in this subpart shall be installed by a licensed septic system installer. (2) Installers may be required to attend special training sessions before being allowed to install certain types of alternate systems. (c) The Department of Health or its authorized agent may require the designated representative to oversee the construction of projects with unusual or rarely used designs.