Under OMB (Office of Management and Budget), Federal agencies are required to periodically review payments under contracts, awards, grants, and other expenditures for improper payments. Within DoD, many agencies have programs in place to test for improper payments. DCAA (Defense Contract Audit Agency), for example, checks for improper payments in connection with “Testing of Paid Vouchers“.
Typically, incurred cost audits and audits of interim requests for payment (i.e. voucher reviews) are performed