What is a Class survey with regards to vessel classification?

A Class survey refers to an examination performed to assess whether a vessel complies with the standards and criteria established by the classification society. This survey is integral to the vessel's classification status, as it evaluates various aspects such as structural integrity, safety, and equipment functionality, ensuring that the vessel is suitable for service under the regulations of the classification society. The results of the Class survey can lead to the issuance or renewal of the vessel's class certificate, which is essential for operating within certain maritime sectors.

In contrast, other choices do not capture the essence of what a Class survey entails. A routine check for ship cleanliness does not involve the technical specifications or safety standards required for classification. A survey conducted only for new vessels overlooks the fact that Class surveys are also necessary for existing vessels to maintain their classification status. Additionally, determining crew size is not related to vessel classification or the technical assessment carried out during a Class survey, as it pertains to operational requirements rather than the structural and safety evaluations of the vessel.