A traditional budgeting procedure by which the President of the United States once could prevent any agency of the Executive Branch from spending part or all of the money previously appropriated by Congress for their use. He would accomplish this, in essence, by an executive order that would forbid the Treasury to transfer the money in question to the agency's account. (The Constitution provides that no money from the Treasury can be spent without a specific Congressional appropriation, but it is silent on the question of whether all money appropriated by Congress actually has to be spent.) All American presidents since John Adams asserted the right to impound appropriated funds, and presidents often used this as a way of making relatively small cuts in Federal spending on programs that they deemed unwise or unnecessary, despite occasional murmurings of dissatisfaction from Congressmen annoyed by the cancellation or trimming of some of their pet pork-barrel projects.
