Section 50.101-1 - Authority(a) Pub. L. 85-804 empowers the President to authorize agencies exercising functions in connection with the national defense to enter into, amend, and modify contracts, without regard to other provisions of law related to making, performing, amending, or modifying contracts, whenever the President considers that such action would facilitate the national defense.(b) E.O. 10789 authorizes the heads of the following agencies to exercise the authority conferred by Pub. L. 85-804 and to delegate it to other officials within the agency: the Government Publishing Office; the Department of Homeland Security; the Tennessee Valley Authority; the National Aeronautics and Space Administration; the General Services Administration; the Defense, Army, Navy, Air Force, Treasury, Interior, Agriculture, Commerce, and Transportation Departments; the Department of Energy for functions transferred to that Department from other authorized agencies; and any other agency that may be authorized by the President. 72 FR 63030 , Nov. 7, 2007, as amended at 84 FR 19847 , May 6, 2019