Full-text of historic government publications:
GPO Federal Digital System (FDsys):
Includes access to these and more:
USA.gov is the federal government's official portal.
FDSys provides free online access to official publications from all three branches of the Federal Government.
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 Publishing Office, Congressional Budget Office, and the LOC's Congressional Research Service.
The Catalog of U.S. Government Publications (CGP) is the finding tool for electronic and print publications from the legislative, executive, and judicial branches of the U.S. government. Includes records from 1976-present, though it will grow to include records for publications dating back to the late 1800s.