The National Aeronautics and Space Administration was established by the National Aeronautics and Space Act (51 U.S.C. 20111), as amended (hereafter called the “Act”).

It is the purpose of the National Aeronautics and Space Administration to carry out aeronautical and space activities of the United States. Such activities shall be the responsibility of, and shall be directed by, the National Aeronautics and Space Administration, except that activities peculiar to or primarily associated with the development of weapons systems, military operations, or the defense of the United States shall be the responsibility of, and shall be directed by, the Department of Defense.

In order to carry out the purpose of the Act, NASA is authorized to conduct research for the solution of problems of flight within and outside the Earth's atmosphere; to develop, construct, test, and operate aeronautical and space vehicles for research purposes; to operate a space transportation system including the space shuttle, upper stages, space program, space station, and related equipment; and to perform such other activities as may be required for the exploration of space. The term aeronautical and space vehicles means aircraft, missiles, satellites, and other space vehicles, together with related equipment, devices, components, and parts. It conducts activities required for the exploration of space with manned and unmanned vehicles and arranges for the most effective utilization of the scientific and engineering resources of the United States with other nations engaged in aeronautical and space activities for peaceful purposes.

(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.