Section 5Republic Act No. 2260, as amended, and as organized under the Integrated Reorganization Plan may serve as the nucleus of the Civil Service Commission., Sec./Art. 5

The Career Service shall be characterized by (1) entrance based on merit and fitness to be determined as far as practicable by competitive examinations, or based on highly technical qualifications; (2) opportunity for advancement to higher career positions; and (3) security of tenure.

The Career Service shall include:

1. Open Career positions for appointment to which prior qualification in an appropriate examination is required;

2. Closed Career positions which are scientific or highly technical in nature; these include the faculty and academic staff of state colleges and universities, and scientific and technical positions in scientific or research institutions which shall establish and maintain their own merit systems;

3. Positions in the Career Executive Service; namely, Undersecretary, Assistant Secretary, Bureau Director, Assistant Bureau Director, Regional Director, Assistant Regional Director, Chief of Department Service and other officers of equivalent rank as may be identified by the Career Executive Service Board, all of whom are appointed by the President;

4. Career officers, other than those in the Career Executive Service, who are appointed by the President, such as the Foreign Service Officers in the Department of Foreign Affairs;

5. Commissioned officers and enlisted men of the Armed Forces which shall maintain a separate merit system;

6. Personnel of government-owned or controlled corporations, whether performing governmental or proprietary functions, who do not fall under the non-career service; and

7. Permanent laborers, whether skilled, semi-skilled, or unskilled.