*One type of backdoor is contract authority which permits an agency to obligate funds in advance of appropriations. The matter comes before the appropriations committees only when money is needed to liquidate the obligation, too late for them to exercise any meaningful control. | *One type of backdoor is contract authority which permits an agency to obligate funds in advance of appropriations. The matter comes before the appropriations committees only when money is needed to liquidate the obligation, too late for them to exercise any meaningful control. |