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 pursuant to subsection (a) in any fiscal year without an express reauthorization of the program by Congress containing an authorization of appropriations period not to exceed three years. 5. Exemption from budgetary level reduction (a) In general Consistent with subsection (b)— (1) any unauthorized program that causes a budgetary level reduction applicable to a fiscal year under section 3 that is expressly reauthorized during the fiscal year in which such level is established shall not be subject to the requirements of this Act