The purpose of this NORD is to revise Chapter 62-213, F.A.C. (“Operation Permits for Major Sources of Air Pollution”), to update major stationary source state permit regulations for consistency with federal regulations and state program requirements under Title V of the Clean Air Act. These updates include removal of the affirmative defense provision, adding a process for making minor amendments to existing permits, and clarifying the actions that constitute off-permit changes to existing permits. Additional revisions will include repealing the Title V Air General Permits rule section in its entirety as the sources are now regulated under Rule 62-210.310, F.A.C. (“Air General Permits”), clarifying that major sources may operate while under the permit renewal process, and clarifying requirements applicable to facilities that may alternate between authorized methods of operation. The Department may propose other streamlining, clarifying and corrective revisions for various rule sections in Chapter 62-213, F.A.C.