Archived - Standard Industrial Classification - Establishments (SIC-E) 1980

• G - Transportation and Storage Industries
• 45 - Transportation Industries
• 455 - Service Industries Incidental to Water Transport

4559 - Other Service Industries Incidental to Water Transport

Establishments primarily engaged in providing services incidental to water transport not elsewhere classified. Establishments primarily engaged in dredging are classified in 4129 - Other Heavy Construction.