Pursuant to a congressional request, GAO reviewed the Department of Defense's (DOD) fiscal year (FY) 1993 budget request and prior year appropriations, focusing on: (1) selected command, control, and communications (C3) programs; (2) potential reductions to the FY 1993 budget request; and (3) potential rescissions to prior year appropriations.

GAO found that: (1) the Army could potentially reduce its FY 1993 budget request for C3 programs by $217.3 million, by cancelling unneeded development and implementation of parts of its All Source Analysis System, reducing testing of its Data Distribution System, delaying the schedule for its Single Channel Ground and Airborne Radio System, delaying procurement of a data transfer device and the mobile command system, and delaying contract award for an improved laser warning system; (2) the Navy could potentially reduce its FY 1993 budget request for C3 programs and have its FY 1992 appropriations rescinded by $504.5 million, by delaying procurement of hardware, a radar jammer, and a reconnaissance system, cancelling procurement or conversion of ships, cancelling pier construction, and terminating production of its Fixed Distributed System; (3) the Air Force could potentially reduce its FY 1993 budget request for C3 programs by $116.6 million, by delaying or cancelling contract awards for modular control equipment, unneeded weather equipment, airframes, and aircraft support equipment and tooling; and (4) DOD could potentially reduce its FY 1993 budget request for C3 programs by $148.9 million, by delaying procurement of unmanned aerial vehicles.