- Deep sea foreign transportation of freight (10)
- Deep sea domestic transportation of freight (9)
- Freight transportation on the great lakes (2)
- Water transportation of freight (10)
- Deep sea passenger transportation, except ferry (10)
- Ferries (13)
- Water passenger transportation (18)
- Marine cargo handling (40)
- Towing and tugboat service (32)
- Marinas (277)
- Water transportation services, (103)