273.48—Audit and inspection.
(a)
During the term of a contract under this part and for three years after the project or undertaking is completed, the Comptroller General and the Secretary, or any of their duly authorized representatives, shall have access, for audit and examination purposes, to any of the contractor's books, documents, papers, and records which, in their opinion, may be related or pertinent to the contract or any subcontract.
(b)
The contractor will be responsible for maintaining all documents such as invoices, purchase orders, canceled checks, balance sheets and all other records relating to financial transactions in a manner which will facilitate auditing. The contractor will be responsible for maintaining files of correspondence and other documents relating to the administration of the contract properly separated from general records or cross-referenced to general files.
(d)
The records involved in any claim or expenditure that has been questioned shall be further maintained until final determination has been made on the questioned expenditures.
(e)
All contracts, non-confidential records concerning all students served by the program, reports, budgets, budget estimates, plans, and other documents pertaining to preceding and current year administration of the contract program shall be made available by the contractor and local school officials to each member of the Indian Education Committee and to members of the public upon request. The contractor or local school official shall provide, free of charge, single copies of such documents upon request.