Final answer:
The interdepartmental transfer of enlisted personnel is typically authorized by the Commanding Officer within the chain of command, not the President, who acts as the Commander in Chief.
Step-by-step explanation:
The interdepartmental transfer of enlisted personnel within the U.S. Navy is a process managed by military leadership and regulations. The authority to authorize such transfers generally resides with senior leadership who hold the appropriate level of command and responsibility. In this case, the Commanding Officer is often the individual who has the authority to authorize the transfer of enlisted personnel within their command. The President, as the Commander in Chief, oversees the broader strategic management of the military, but day-to-day personnel decisions are delegated to officers within the chain of command. For example, if a sailor in the Navy wants to transfer from one department to another, they would need approval from their Commanding Officer to initiate the transfer process.