Section 43
SEC. 43. Suspension of Expenditure of Appropriations.-Except as otherwise provided in the General Appropriations Act and whenever in his judgement the public interest so requires, the President, upon notice to the head of office concerned, is authorized to suspend or otherwise stop further expenditure of funds alloted for any agency, or any other expenditure authorized in the General Appropriations Act, except for personal services appropriations used for permanent officials and employees.