The deputy commander acts as the principal assistant and advisor to the U.S. Pacific Fleet commander. The deputy acts for and in the name of the commander in matters within the framework of established policy during his temporary absence from the Pearl Harbor headquarters, when time and communication facilities do not permit referral to the commander. The deputy executes and implements the policies and directives of the commander, ensuring that the organization, administration, training, readiness, and operations of the command are carried out in conformance with the policies, plans, and intentions of the commander. The deputy supervises all directorate chiefs and many of the command's special assistants. In the absence of the deputy commander, the Reserve deputy commander fulfills these duties.