In an emergency requiring rescue and assistance, whom should you notify first?

The correct choice is to notify the Command Duty Officer first in an emergency requiring rescue and assistance. The Command Duty Officer (CDO) is typically responsible for the overall safety and security of the unit while it is in-port, and they have the authority to make critical decisions and coordinate appropriate responses during emergencies. By notifying the CDO, you ensure that an organized and effective response can be initiated swiftly, involving the proper channels and resources available at the moment.

Additionally, the CDO serves as the key point of contact for coordinating with other authorities, such as local law enforcement and emergency services, which may need to be engaged depending on the specifics of the emergency. This chain of command is crucial for maintaining order and efficiency in crisis scenarios.