CRS is the public policy research arm of Congress. This legislative branch agency works exclusively for Members of Congress, their committees and their staffs.
"The Congressional Research Service (CRS) does not provide direct public access to its reports, requiring citizens to request them from their Members of Congress. Some Members, as well as several non-profit groups, have posted the reports on their web sites. This site is not affiliated with the Congressional Research Service, but aims to provide integrated, searchable access to many of the full-text CRS reports that have been available at a variety of different web sites since 1990."
United States documents including bills, resolutions, legislative histories, presidential nominations, treaties, committee reports, and other federal legislative resources.