(1) The period of certificates as referred to in Clauses (1), (2) and (3) of Section 7 shall be One year and that period may be extended for a maximum period of One Hundred Twenty days. Provided that, in the case of the sea worthiness certificate, such period may be extended for a maximum period of One Hundred Fifty days.
(2) If any ship is damaged, causing adverse effect to its sea worthiness (capacity to travel at sea), all certificates obtained by that ship pursuant to Section 7 shall be invalid.
(3) The certificate of international load line shall be invalid after the expiration of the period specified in that certificate. Provided that, such period shall not be so specified as to exceed the period of more than Five years after the date of its issue.
(4) The certificate of exemption shall not be valid after the expiration of the period specified in it.