What is a valid air operating permit?
If you have a Title V (Part 70) permit, a FESOP (Federally Enforceable State Operating Permit), an MSOP (Minor Source Operating Permit), a SSOA (Source Specific Operating Agreement), or a Registration that has not expired, that permit qualifies as a valid air operating permit. If you have submitted a renewal application 9 months before the expiration date (for Title Vs/FESOPs) or 90 days before the expiration date (for MSOPs), you have a valid air operating permit. SSOAs and registrations do not expire.
