Other Water Transport Support Services

**Exclusions/References:** - Units mainly engaged in - (a) repairing ships and boats (including factory overhauls or factory conversions) are included in Classes 2391 Shipbuilding and Repair Services and 2392 Boatbuilding and Repair Services respectively; and - (b) providing stevedoring services are included in Class 5211 Stevedoring Services. **Primary Activities:** - Lighterage service - Navigation service (water transport) - Pilotage service - Salvage service, marine - Ship registration and agency service - Towboat and tugboat operation - Water vessel towing service