(4)Where a load line certificate issued in pursuance of this section and for the time being in force, is produced in respect of a ship, the ship shall, for the purposes of the foregoing provisions of this Part, be deemed to have been surveyed as required by those provisions, and if the deck line and load lines on the ship are of the number and description required by the load line rules and the position of the deck line and load lines corresponds with the position specified in the certificate, the ship shall be deemed to be marked as required by those provisions.