Ship Repair
All ships need maintenance and repairs. Many repair and maintanance operations can be performed at sea or by the crew in port. Complicated or large-scale repairs might require the ship to be removed from commercial operation. Classification Society supervision is required for most large-scale repairs, particularly those carried out in a ship repair yard. For oceangoing ships, particularly tankers, the ship has to be prepared for repair at a Deballasting Station. The tank must be thoroughly cleaned and its slops (grey water and hydrocarbon residues) must be pumped ashore according to environmental regulations.