Exclusion(s): Establishments primarily engaged in:

*crop-dusting using specialized aircraft (11511, Support Activities for Crop Production); *fighting forest fires using specialized water bombers (11531, Support Activities for Forestry); *scheduled air transport (48111, Scheduled Air Transportation); *specialized air sightseeing services (48799, Scenic and Sightseeing Transportation, Other); *aerial gathering of geophysical data (54136, Geophysical Surveying and Mapping Services); *providing aerial mapping services (54137, Surveying and Mapping (except Geophysical) Services); *flight training, including all training for commercial pilots (61151, Technical and Trade Schools); and *operating air ambulance services using specialized equipment (62191, Ambulance Services).