level for unauthorized programs (a) Budgetary level for fiscal year following expiration of authorization With respect to any unauthorized program, on the date that a budgetary level is established for the fiscal year immediately following the expiring fiscal year, such level shall immediately be reduced by an amount equal to 10 percent of the funds appropriated for such program in the expiring fiscal year. (b) Budgetary level for second and third fiscal years following expiration of authorization With respect to any unauthorized program that results in a budgetary level reduction under subsection (a) that remains an unauthorized program in the second or third fiscal year following the expiring fiscal year, on the date that a budgetary level is established for either such second or third fiscal year, the budgetary level for either such fiscal year shall be reduced by an amount equal to 15 percent of the funds appropriated for such program in the expiring fiscal year. (c) Transmittal of new budgetary level Upon the reduction of a budgetary level (if any) under subsection (a) or (b), the chair of the Committee on the Budget of the House of Representatives and the Senate shall submit the revised budgetary level to the chair of the Committee on Appropriations of the House of Representatives and the Senate, respectively. 4. Termination of unauthorized programs after third unauthorized year (a) In general Any unauthorized program that causes a budgetary level reduction under section 3(b) applicable to the third fiscal year following the expiring fiscal year shall, effective immediately on October 1 of the fiscal year immediately following such third fiscal year, be terminated, except that any unobligated amounts available for such program after the date of termination shall remain available for recording, adjusting, and liquidating valid obligations of such program issued before such termination date. (b) Obligation of funds prohibited without reauthorization No funds may be obligated for any program terminated