Administrative Code of 1987
Section 11. Submission of the Budget. - The President shall, in accordance with Section 22 (1), article VII of the Constitution, submit within thirty (30) days from the opening of each regular session of the Congress as the basis for the preparation of the General Appropriations Act, a national government budget estimated receipts based on existing and proposed revenue measures, and of estimated expenditures.
The President shall include in the budget submission the proposed expenditure level of the Legislative and Judicial Branches and of Constitutional bodies, which shall have undergone the same process of evaluation and which shall have been subject to the same budgetary policies and standards applicable to agencies in the Executive Branch.
The President may transmit to the Congress from time to time, such proposed supplemental or deficiency appropriations as are, in his judgment, (1) necessary on account of laws enacted after the transmission of the Budget, or (2) otherwise needed in the public interest.