What is the difference between a flexible group and a reporting group?
A flexible group is used in the renewable operating permit (ROP) program to combine two or more emission units that have common or identical requirements. A reporting group is used in MAERS to combine two or more emission units with identical activities (SCC’s) to simplify reporting emissions for these emission units. Sometimes, but not always, it makes sense to create a reporting group in MAERS for the emission units comprising a flexible group in the ROP.