A rider becomes law if the bill to which it is attached is enacted. Select or Special Committee - A committee set up for a special purpose and, usually, for a limited time by resolution of either the House or Senate. The House in 1993 terminated its four select committees. However, the Budget Enforcement Act of 1990, updated in 1993, effectively replaced that procedure through fiscal 1998. Instead, if Congress exceeds an annual cap on discretionary spending, a sequester is triggered for all eligible discretionary spending to make up the difference.
Similar procedures apply to supplemental appropriations bills.
Spending Authority - The 1974 budget act defines spending authority as borrowing authority, contract authority and entitlement authority for which budget authority is not provided in advance by appropriations acts. Supplemental Appropriations Bill - Legislation appropriating funds after the regular annual appropriations bill for a federal department or agency has been enacted. A supplemental appropriation provides additional budget authority beyond original estimates for programs or activities, including new programs authorized after the enactment of the regular appropriations act for which the need for funds is too urgent to be postponed until enactment of the next year's regular appropriations bill. Trust Funds - Funds collected and used by the federal government for carrying out specific purposes and according to terms of a trust agreement for statute such as the Social Security and unemployment compensation trust funds. Such funds are administered by the government in a fiduciary capacity and are not available for the general purposes of the government.