The ship's audits are solely undertaken by the seven recognised classification societies.
审核船舶的工作，专由该七家认可船级社进行。
2
Ship's tank structure strength tests to be carried out during sea trials as per rules of Classification Society.
根据船级社的规范要求船舶舱室的强度试验应该在试航期间进行。
3
All deck machinery and ship's equipment must be provided with qualified certificate, the item need to be inspected by class shall be provided with the classification society certificate.