Congress.gov is the official website for U.S. federal legislative information. The site provides access to accurate, timely, and complete legislative information for Members of Congress, legislative agencies, and the public. It is presented by the Library of Congress (LOC) using data from the Office of the Clerk of the U.S. House of Representatives, the Office of the Secretary of the Senate, the Government Printing Office, Congressional Budget Office, and the LOC's Congressional Research Service.
The scope of data collections and system functionality have continued to expand since THOMAS was launched in January of 1995, when the 104th Congress convened. THOMAS was produced after Congressional leadership directed the Library of Congress to make federal legislative information freely available to the public.