1.1 This International Standard establishes the purpose of ship operational documents, their classification and titles. It includes, in addition, the basic provisions for the maintenance and presentation of operational documents, and for the process of their correction and replacement for ships undergoing modification and repairs. 1.2 The list of documents laid down in this International Standard is a reference list from which a set of principal operational documents may be chosen for any transport vessel. For special purpose vessels and for vessels on which the installation of special equipment, machinery and systems is envisaged which are not indicated in this International Standard, the titles and the summary list of ship operational documents to be delivered should be specified in each particular case when concluding a contract. 1.3 The number of copies of each document handed over for the ship as a part of the operational documentation should be agreed between the ship outfitter and the ship owner when concluding a contract.