Who must be informed if equipment is no longer on board?

The correct choice is that the Department Head must be informed if equipment is no longer on board. This is important because the Department Head plays a critical role in overseeing operations and ensuring that all resources, including equipment, are accounted for. They are responsible for the management of the department's assets and need to be aware of any changes in inventory that could impact operations, maintenance planning, and readiness.

When equipment is removed, the Department Head can assess the implications for the department's functions and ensure that proper procedures are followed for tracking and replacing the equipment if necessary. Additionally, informing the Department Head enables them to communicate relevant information to upper management and coordinate any actions that may need to be taken regarding the missing equipment. This process is essential for maintaining accountability and effective resource management within the organization.