National Science Foundation
NSF is an independent federal agency that funds basic research and education in all non-medical fields of science and engineering, mainly through competitive grants to universities and research institutions. It is led by a Senate-confirmed Director (6-year term) and overseen by the National Science Board, whose 24 presidentially appointed members (plus the Director, ex officio) set policy. NSF does not run its own labs but shapes much of U.S. academic science by deciding which proposals get funded.
Created by Congress under the National Science Foundation Act of 1950 (Pub. L. 81-507, 64 Stat. 149; 42 U.S.C. ch. 16 (Sec. 1861 et seq.)), it acts within the authority that statute grants. Its actions are subject to judicial review and to congressional oversight and funding.