Question 3010 Deck General

The correct answer is B) The required oily-water separator malfunctions. The IOPP (International Oil Pollution Prevention) Certificate is not invalidated in the case where the required oily-water separator malfunctions. This is because the IOPP Certificate is tied to the vessel's design and equipment, not its current operational status. As long as the vessel is equipped with the required oily-water separator, even if it temporarily malfunctions, the IOPP Certificate remains valid. The other options are incorrect because: A) Transferring the ship to a different registry would require re-issuance of the IOPP Certificate; C) Conducting an annual survey more than 12 months after the certificate's issuance date would invalidate it; and D) Replacing the oily-water separator with a less capable model would also invalidate the IOPP Certificate.