An action taken by the president in which he or she proposes not to spend all or part of a sum of money appropriated by Congress. The current rules and procedures for impoundment were created by the Congressional Budget and Impoundment Control Act of 1974 (2 U.S.C.A. § 601 et seq.), which was passed to reform the congressional budget process and to resolve conflicts between Congress and President RICHARD M. NIXON concerning the power of the EXECUTIVE BRANCH to impound funds appropriated by Congress. Past presidents, beginning with THOMAS JEFFERSON, had impounded funds at various times for various reasons, without...