(a) NASA is headed by an Administrator, who is appointed from civilian life by the President by and with the advice and consent of the Senate. The Administrator is responsible, under the supervision and direction of the President, for exercising all powers and discharging all duties of NASA.

(b) The Deputy Administrator of NASA is also appointed by the President from civilian life by and with the advice and consent of the Senate. The Deputy Administrator acts with or for the Administrator within the full scope of the Administrator's responsibilities. In the Administrator's absence, the Deputy Administrator serves as Acting Administrator.