(1) If the ship operator for a regulated Australian ship has given the Secretary a ship security plan for the ship, the ship operator may, by written notice given to the Secretary, request the Secretary to approve another ship security plan for the ship (the revised plan ).
(2) The notice must be accompanied by a copy of the revised plan.
(3) If a request is made in accordance with this section, sections 70 and 71 apply in relation to the revised plan.
(4) If the revised plan comes into force, it replaces any other plan for the ship in force at that time.