Sec. 6. A county having a consolidated city may, subject to department approval, establish an air permit program that complies with:
(1) the federal Clean Air Act (42 U.S.C. 7401 et seq.), as amended by the Clean Air Act Amendments of 1990 (P.L. 101-549);
(2) regulations implementing Title V of the Clean Air Act Amendments of 1990 (40 CFR 70 et seq.); and
(3) rules adopted by the board.