| Naics index | Naics index description |
|---|---|
| 484220 | Tracked vehicle freight transportation, local |
| 484220 | Trucking, specialized freight (except used goods), local |
| 484230 | Automobile carrier trucking, long-distance |
| 484230 | Boat hauling, truck, long-distance |
| 484230 | Bulk liquids trucking, long-distance |
| 484230 | Dry bulk carrier, truck, long-distance |
| 484230 | Farm products trucking, long-distance |
| 484230 | Flatbed trucking, long-distance |
| 484230 | Forest products trucking, long-distance |
| 484230 | Grain hauling, long-distance |