2 U.S.C. § 621

1. (1)to assure effective congressional control over the budgetary process;
2. (2)to provide for the congressional determination each year of the appropriate level of Federal revenues and expenditures;
3. (3)to provide a system of impoundment control;
4. (4)to establish national budget priorities; and
5. (5)to provide for the furnishing of information by the executive branch in a manner that will assist the Congress in discharging its duties.