Answer
An International Loadline Certificate shall cease to be valid if any of the following circumstances exist
a) Material alterations have taken place in the hull or superstructures of the ship such as would necessitate the assignment of an increased freeboard;
b) The fittings and appliances mentioned for the protection of openings, guard rails, freeing ports
c)The certificate is not endorsed to show that the ship has been surveyed to ensure that
i) Alterations have not been made
ii) Maintained in an effective condition
iii) Freeboard marks are correctly and permanently indicated
iv) Loading cum stability booklet with proper Information is provided to the master.
d)The structural strength of the ship is lowered to such an extent that the ship is unsafe.