The Secretary may, after reasonable notice and opportunity for hearing to the State agency, take exception to and require repayment of an expenditure for the operation of a QC program if it is found by the Secretary that such expenditure is not necessary for the proper and efficient administration of the QC program in the State. See sections 303(a)(8), 303(a)(9) and 303(b)(2), SSA, and 20 CFR 601.5. For purposes of this section, an expenditure will be found not necessary for proper and efficient administration if such expenditure fails to comply with the requirements of subpart C of this part.