Pursuant to a legislative requirement, GAO reviewed whether the Office of Management and Budget's (OMB) and the Congressional Budget Office's (CBO) reports complied with the Budget Enforcement Act of 1990.

GAO found that: (1) OMB and CBO reports substantially complied with the act's requirements, but there were differences between OMB and CBO discretionary spending limit estimates; (2) the difference in the budget authority estimates was due to differing interpretations of how discretionary spending limits should be adjusted for inflation; (3) OMB and CBO outlay estimates for general purpose appropriation acts varied by $87 million; and (4) CBO estimated $410 million more in rescinded budget authority for an emergency supplemental appropriation than OMB for fiscal years 1995 and 1996.