| Naics index | Naics index description |
|---|---|
| 488210 | Locomotive and rail car repair (except factory conversion, factory overhaul, factory rebuilding) |
| 488210 | Maintenance of rights of way and structures, railway |
| 488210 | Railroad switching services |
| 488210 | Railroad terminals, independent operation |
| 488210 | Railway terminals, independent operation |
| 488210 | Shunting trailers in rail terminals |
| 488210 | Switching services, railroad |
| 488310 | Canal maintenance services (except dredging) |
| 488310 | Canal operation |
| 488310 | Docking facility operations |