Final answer:
The Navy Directives Management Program is overseen by the Department of the Navy, following the constitutional mandate to provide for a navy and regulate naval forces. Although the President is the Commander in Chief, practical management is conducted by officials within the Navy, in coordination with the Department of Defense.
Step-by-step explanation:
The Navy Directives Management Program is under the jurisdiction of the Department of the Navy, which acts to ensure the implementation and administration of this program within the Navy. The program is part of the broader mandate for defense as outlined in the United States Constitution, which includes the responsibility 'To provide and maintain a Navy; To make Rules for the Government and Regulation of the land and naval Forces;' as well as 'To provide for calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions;'. Oversight of the armed forces, which includes the Army, Navy, Marine Corps, and Air Force, is vested in the President of the United States, who, according to Section 2 of the Constitution, is the Commander in Chief of the military.
In practice, the daily operational management of the Navy Directives Management Program is likely to be handled by a designated official or office within the Navy structure, in alignment with policies and procedures established by top military and civilian leadership. This could include the role of the Secretary of Defense, who, though a nonmilitary civilian, heads the Department of Defense and works closely with the top uniformed military officer to oversee defense matters, including directive management.