A 30，000 DWT tanker is required to have an IOPP certificate when（）<br>A:engaged in the coastwise trade<br>B:going foreign<br>C:calling at ports in another country signatory to MARPOL 73/78<br>D:carrying cargoes listed in the MARPOL regulations

A 30，000 DWT tanker is required to have an IOPP certificate when（）
A:engaged in the coastwise trade
B:going foreign
C:calling at ports in another country signatory to MARPOL 73/78
D:carrying cargoes listed in the MARPOL regulations

出自：海船船员证

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