Administrative Code of 1987
Section 35. Organizational Structure. - The AFP shall consist of the General Headquarters; the Major Services namely: the Philippine Army, the Philippine Air Force, the Philippine Navy and, until otherwise provided by law, the Philippine Constabulary; and other existing units, services and commands of the AFP. The Secretary of National Defense may, in accordance with the policies or directives of the President, create additional units, services and commands, or reorganize the AFP in response to any situation or in pursuance of operational or contingency plans. No Major Service may be unfilled, inactivated or merged with another Service, without the approval of the Congress.