The United States Code (U.S.C.) contains those laws of Congress currently in effect. Browse for US Code by subject (for example: Title 42: Public Health and Welfare, Title 24 Housing and Urban Development)
The site Congress.gov, provides the full text of laws from the 103rd Congress (1993-1994) to the current Congress and summaries from the 93rd congress to the current congress. For laws from the 103rd Congress (1993-1994) to the present Congress, there is a link to the Public Law via the United States Government Publishing Office.
Since 1981, the Committee on Ways and Means has published the Green Book, which presents background material and statistical data on the major entitlement programs and other activities within the Committee's jurisdiction. Over the decades, the Green Book has become a valuable resource and standard reference on American social policy.
MetaLib is a federated search engine that searches multiple U.S. Federal government databases, retrieving reports, articles, and citations while providing direct links to selected resources available online.