| 481212 |
Freight transportation, air, nonscheduled |
| 481212 |
Helicopter carriers, freight, nonscheduled |
| 481212 |
Nonscheduled air freight transportation |
| 481212 |
Space transportation, freight, nonscheduled |
| 481212 |
Transportation by spacecraft, freight |
| 481219 |
Aircraft charter services (i.e., general purpose aircraft used for a variety of specialty air and flying services) |
| 481219 |
Aviation clubs providing a variety of air transportation activities to the general public |
| 482111 |
Freight railways, line-haul |
| 482111 |
Passenger railways, line-haul |
| 482111 |
Railroad transportation, line-haul |