Section 8(7) in The Merchant Shipping (Prevention of Pollution by Sewage from Ships) Rules, 2010
(7)A certificate issued under rules 5 or 6 shall cease to be valid in the following cases, namely:(a)where the surveys specified under sub-rule (1) of rule 4 has not been completed within the period specified thereunder; or(b)upon a transfer of the ship to the flag of another State Party:Provided that no new certificate shall be issued by any Government required to do so unless it is fully satisfied that the ship is in full compliance of the requirements of sub-rules (7) and (8) of rule 4;Provided further that in the case of a transfer between State Parties, if a request is made in three months after such transfer has taken place, the Government of the State Party whose flag the ship was formerly entitled to fly shall, as soon as possible, transmit to the Central Government copies of the certificate carried by the ship before such transfer and copies of survey reports, if available.
