This industry comprises establishments primarily engaged in providing navigational services to shipping. Marine salvage establishments are included in this industry. Illustrative Examples: Docking and undocking marine vessel services Piloting services, water transportation Marine vessel traffic reporting services Tugboat services, harbor operation Establishments primarily engaged in--

Including:

• Cargo salvaging, marine
• Docking and undocking marine vessel services
• Harbor tugboat services
• Marine salvaging services
• Marine vessel traffic reporting services
• Piloting services, water transportation
• Radio beacon (i.e., ship navigation) services
• Tugboat services, harbor operation