Tenn. Code Ann. § 68-201-103

It is the intent and purpose of this part to maintain purity of the air resources of the state consistent with the protection of normal health, general welfare and physical property of the people, maximum employment and the full industrial development of the state. The board and department shall seek the accomplishment of these objectives through the prevention, abatement and control of air pollution by all practical and economically feasible methods. It is also the intent of this part to qualify for receipt of federal funds available for state air pollution control programs and, to that end, this part shall be construed to give the authority to so qualify and maintain such qualification.