How to track a law from the bill stage though passage into law.
GAO = Government Accountability Office
CRS = Congressional Research Service
CBO = Congressional Budget Office
Congressional Record is the proceedings of the United States Congress.
Congressional Reports eventually become part of the U.S. Congressional Serial Set. Congressional Reports, consisting of Senate and House Reports, are important for several reasons: 1) they often present the legislative intent of congressional bills (why was this law needed?; what were the legislators thinking?; and 2) they often present statistics and other useful background information.