What sources qualify for operating permits for small sources?
Facilities which qualify for a Small Source Operating Permit are those whose after-control potential emissions exceed the Thresholds, but whose actual emissions are less than fifty percent of those thresholds for every 12-month rolling period. In obtaining a Small Source Operating Permit the owner agrees to limit plant-wide actual emissions of each regulated air contaminant to below fifty percent of the major source thresholds. Sources eligible for a Small Source Operating Permit may qualify for reduced record keeping requirements through classification as a “de minimus” emissions source (as defined in 567 IAC 22.300(4)). If you are unsure if you are a de minimus source contact the Iowa Air Emissions Assistance Program.
