(1) “Board” means the Tennessee board of water quality, oil, and gas [See the Compiler's Notes] as created by [former] § 59-8-321 [repealed. See Compiler's Notes];
(1) “Board” means the Tennessee board of energy and natural resources created by § 69-3-104;
(2) “Commissioner” means the commissioner of environment and conservation, the commissioner of environment and conservation's duly authorized representatives, and in the event of absence or a vacancy in the office of commissioner, the deputy commissioner;
(3) “Department” means the department of environment and conservation; and
(4) “Director” means the director of the division of water pollution control in the department of environment and conservation.