GPO Federal Digital System (FDsys). Provides free online access to official publications from all three branches of the Federal Government.
Catalog of U.S. Government Publications (CGP). The CGP is the finding tool for federal publications that includes descriptive records for historical and current publications and provides direct links to those that are available online.
CQ Researcher. Presents full-text articles on current social, political, economic, and international issues.
GPO Monthly Catalog (FirstSearch). Covers all types of U.S. government documents, including Congressional reports, hearings, debates, and records; judiciary materials; and documents issued by executive departments (Defense, State, Labor, Office of the President, etc.).
HeinOnline. Contains the U. S. Code, congressional documents, federal government regulations, federal statutes, and much more..
Monthly Catalog of US Government Publication (1985-1976). An index to historical information published by the United States federal government between January 1895 and June 1976.
ProQuest Legislative Insight. A federal legislative history service that makes available researched compilations of digital full-text publications relevant to enacted United States public laws.