This U.S. industry comprises establishments primarily engaged in operating shipyards. Shipyards are fixed facilities with drydocks and fabrication equipment capable of building a ship, defined as watercraft typically suitable or intended for other than personal or recreational use. Activities of shipyards include the construction of ships, their repair, conversion and alteration, the production of prefabricated ship and barge sections, and specialized services, such as ship scaling. Illustrative Examples: Barge building Cargo ship building Drilling and production platforms, floating, oil and gas, building Passenger ship building Submarine building Yachts built in shipyards Cross-References. Establishments primarily engaged in--