What type of vessels typically require crew members to hold a QMED credential?

Crew members are typically required to hold a Qualified Member of the Engine Department (QMED) credential on commercial cargo ships and tankers due to the complex machinery and engineering systems that these types of vessels employ. QMED credentials are specifically designed for personnel working in engine room positions aboard commercial vessels, as they need to be knowledgeable in various critical areas, including marine engineering, equipment operation, and maintenance.

Commercial cargo ships and tankers operate under strict regulatory requirements, and the QMED credential ensures that crew members have the necessary skills and training to safely and efficiently manage the engine room and support the overall operation of the vessel. This is crucial for the safe transport of goods and materials across oceans.

In contrast, while fishing vessels and passenger ferries may also have engine room operations, they often have different credentialing requirements that do not necessitate a QMED. Recreational boats typically do not require specialized maritime credentials for their crew, as they generally operate under different regulations and less complex systems than commercial shipping vessels.