Where is the DC closure log kept when the vessel is in port?

The DC closure log is kept on the quarterdeck when the vessel is in port because this area serves as a central point for monitoring the ship's security and operational readiness. The quarterdeck is typically staffed by personnel who maintain visibility over the entry and exit points of the ship, making it an ideal location for critical documents such as the DC closure log.

This log records all closures of watertight and other ship compartments, which is crucial for the safety and emergency preparedness of the vessel while it is docked. Being on the quarterdeck allows for easy access and review by officers and crew responsible for managing the ship's operations and ensuring that all necessary safety protocols are in place when the ship is not underway.

Other options, while relevant areas of the ship, do not provide the same level of visibility and accessibility required for managing safety and security logs effectively.