SECTION 5. Office of the Secretary.—The Office of the Secretary shall be composed of the Secretary and his immediate staff.
SECTION 6. Undersecretaries.—The Secretary shall be assisted by not more than five (5) Undersecretaries who shall be appointed by the President upon the recommendation of the Secretary. The Secretary is hereby authorized to delineate and assign the respective functional areas of responsibility of the Undersecretaries. Such responsibility shall be with respect to the mandate and objectives of the Department and no Undersecretary shall be assigned primarily administrative responsibilities. Within his functional area of responsibility, an Undersecretary shall have the following functions:
(1) Advise and assist the Secretary in the formulation and implementation of Department policies, plans, programs and projects;
(2) Supervise all the operational activities of the units assigned to him, for which he is responsible to the Secretary; and
(3) Perform such other duties and responsibilities as may be assigned or delegated by the Secretary to promote efficiency and effectiveness in the delivery of public services or as may be required by law.
SECTION 7. Assistant Secretaries.—The Secretary shall also be assisted by six (6) Assistant Secretaries appointed by the President of the Philippines upon the recommendation of the Secretary; one (1) to be responsible for the Internal Audit Services; one (1) for the Monitoring and Information Service; one (1) for the Planning Service; one (1) for the Comptrollership and Financial Management Service; one (1) for the Legal Service; and one (1) for the Administrative and Manpower Management Service.