What sources qualify for voluntary operating permits?
Those facilities which would qualify for a Voluntary Operating Permit are those with after-control potential emissions that exceed the Thresholds, but have actual emissions less than those thresholds for every 12-month rolling period. In obtaining a Voluntary Operating Permit potential emissions are limited through restrictions on hours of operation, process throughput or other means so that plant-wide potential emissions of each regulated air contaminant are brought below the Title V applicability thresholds.
