Includes
Tugs; Towboats; Fire Boats; Ice Breakers; Repair Ships; Tender Vessels (Buoy, Lighthouse, Destroyer); Lightships; Cable Ships; Salvage and Submarine Rescue Vessels.

Excludes
Combat Vessels; Dredges.

Possible NAICS Codes
336612 – Boat Building
336611 – Ship Building and Repairing
488330 – Navigational Services to Shipping
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
488390 – Other Support Activities for Water Transportation
483211 – Inland Water Freight Transportation
541614 – Process, Physical Distribution, and Logistics Consulting Services
483212 – Inland Water Passenger Transportation
532411 – Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing
487210 – Scenic and Sightseeing Transportation, Water