2.5.1 If the ship does not carry valid certificates, or if the PSCO, from general impressions
or observations on board, has clear grounds for believing that the condition of the ship or its
equipment does not correspond substantially with the particulars of the certificates or that the
master or crew are not familiar with essential shipboard procedures, a more detailed
inspection, as described in this chapter, should be carried out, utilizing relevant appendices.
2.5.2 Support during the more detailed inspection could be found in the documents
mentioned in appendix 12, part B, where applicable.
2.5.3 It is not envisaged that all of the equipment and procedures outlined in this chapter
would be checked during a single port State control inspection, unless the condition of the ship
or the familiarity of the master or crew with essential shipboard procedures necessitated such
a detailed inspection. In addition, these procedures are not intended to impose the seafarer
certification programme of the port State on a ship entitled to fly the flag of another Party to
STCW 1978 or to impose control procedures on foreign ships in excess of those imposed on
ships of the port State.