[Analytical Perspectives] [Other Technical Presentations] [19. Relationship of Budget Authority to Outlays] [From the U.S. Government Printing Office, www.gpo.gov] The Congress must provide budget authority, which is generally in the form of appropriations, before Federal agencies can obligate the Government to make outlays. When Congress fails to complete action on one or more of the regular annual appropriation bills before the fiscal year begins, budget authority may be made available on a temporary basis through continuing resolutions. Continuing resolutions make budget authority available for limited periods of time, generally at rates related through some formula to the rate provided in the previous year's appropriation. Some new budget authority is available through permanent appropriations under existing law. This consists mainly of budget authority for trust funds, which for most trust funds is automatically appropriated under existing law; interest on the public debt, for which budget authority is automatically provided under a permanent appropriation enacted in 1847; and the authority to spend offsetting collections credited to appropriation or fund accounts. Budget authority for the medicare, railroad retirement, and unemployment insurance trust funds was changed by the Budget Enforcement Act of 1990, so that it equals estimated obligations of the funds rather than the funds' receipts. Conforming changes were made administratively in 1991 for most other trust funds and special funds subject to obligation limits or benefit formulas, including the social security and the military and civil service retirement trust funds. The remaining new budget authority is normally made available annually through the appropriations process. Not all of the new budget authority for 1997 will be obligated or spent in that year:\1\ \1\This subject is also discussed in a separate OMB report, ``Balances of Budget Authority,'' which can be purchased from the National Technical Information Service shortly after the budget is transmitted. ---------------------------------------------------------------------------