Rocks & mirror
Encyclopedia of Marine and Energy Technology

Periodical hull surveys


Annual, intermediate and special surveys. The purpose of the annual and intermediate surveys is to confirm that the general condition of the vessel is maintained at a satisfactory level. The special surveys of the hull structure are carried out at five year intervals with the purpose of establishing the condition of the structure to confirm that the structural integrity is satisfactory and will remain fit for its intended purpose until the next special survey subject to proper maintenance and operation.