Final answer:
The Navy Department Board of Decorations and Medals (NDBDM) was established in 1947 by the Secretary of the Navy (SECNAV) to provide assistance in all matters of policy, procedure, and administration with regard to Navy decorations and medals.
Step-by-step explanation:
The Navy Department Board of Decorations and Medals (NDBDM) was established in 1947 by the Secretary of the Navy (SECNAV) to provide assistance in all matters of policy, procedure, and administration with regard to Navy decorations and medals. It is a department within the Department of Defense and was reorganized under this department in 1949. The NDBDM is responsible for deciding on the eligibility, criteria, and awarding of Navy decorations and medals.