| Naics index | Naics index description |
|---|---|
| 488330 | Tugboat services, harbor operation |
| 488390 | Cargo checkers, marine |
| 488390 | Cargo surveyors, marine |
| 488390 | Drydocks, floating (i.e., routine repair and maintenance of ships) |
| 488390 | Marine cargo checkers and surveyors |
| 488390 | Ship dismantling at floating drydock |
| 488390 | Ship scaling services not done at a shipyard |
| 488410 | Emergency road services (i.e., tow service) |
| 488410 | Motor vehicle towing services |
| 488410 | Tow truck services |