Doğru Cevap: calling at ports in another country signatory to MARPOL 73/78

Açıklama: "IOPP (International Oil Pollution Prevention) certificate is required when a ship calls at ports in another country signatory to MARPOL 73/78, as this certificate ensures compliance with international regulations on oil pollution prevention and response." (Note: IOPP certificate is mandatory for ships above 30,000 DWT that call at ports in countries that have ratified MARPOL 73/78, which is an international convention for preventing pollution from ships.)