| 49 | TRANSPORTATION AND MATERIALS MOVING. | 36 | - |
| | 49.01 | Air Transportation. | 36 | - |
| | | 49.0101 | Aeronautics/Aviation/Aerospace Science and Technology, General. | 0 | - |
| | | 49.0102 | Airline/Commercial/Professional Pilot and Flight Crew. | 31 | - |
| | | 49.0104 | Aviation/Airway Management and Operations. | 5 | - |