(a) Consistent with Section 382.051, the commission may adopt permits by rule for certain types of facilities if it is found on investigation that the types of facilities will not make a significant contribution of air contaminants to the atmosphere. The commission may not adopt a permit by rule authorizing any facility defined as "major" under any applicable preconstruction permitting requirements of the federal Clean Air Act (42 U.S.C. Section 7401 et seq.) or regulations adopted under that Act. Nothing in this subsection shall be construed to limit the commission's general power to control the state's air quality under Section 382.011(a).
(b) The commission by rule shall specifically define the terms and conditions for a permit by rule under this section.