Indiana Administrative Code
Title 326 - AIR POLLUTION CONTROL DIVISION
Article 2 - PERMIT REVIEW RULES
Rule 8 - Federally Enforceable State Operating Permit Program
Section 8-6 - Federally enforceable requirements

(a) The commissioner may not issue a FESOP that waives, or makes less stringent, any limitation or requirement contained in or issued under the state implementation plan (SIP) or requirements that are otherwise federally enforceable under the CAA. Permits that do not conform to the requirements of this rule and the requirements of U.S. EPA's underlying regulations may be deemed by the U.S. EPA not federally enforceable.

(b) All terms and conditions in a FESOP, including any provisions designed to limit a source's potential to emit, are enforceable by the U.S. EPA and citizens under the CAA.