Congress.gov is the official website for federal legislative information. The site includes statutes, bills, regulations, legislative history, and presidential materials back to the mid 1990's, and for some material it goes back further.
Congress.gov is usually updated the morning after a session adjourns. Consult Coverage Dates for Legislative Information for the specific update schedules and start date for each collection.
govinfo from GPO (Government Publishing Office)
Govinfo provides free online access to official federal government publications, and securely controls digital content throughout its lifecycle to ensure content integrity and authenticity. Includes statutes, bills, regulations, legislative history, and presidential materials back to the early 1990s.
Legal research guide compiled by the Law Librarians' Society of the District of Columbia. Provides links to legislative histories available online, and other legislative history resources.
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