The Congressional Research Service (CRS) works exclusively as a reference and research service for the U.S. Congress. CRS prepares studies and issue briefs on a variety of topics providing background information for investigations and legislative proposals under study by Congress.

CRS Reports (1916-present) are succinct discussions of timely issues, often fifty pages or less, and hold significant research value.

Major Studies and Issue Briefs of the Congressional Resarch Service, an archival copy of selected CRS Reports from 1916-2006.  UI Libraries Microfilm 21646 (1916–1975); Microfilm 21647 (1975–1994); Microfiche 1552 (1995– 2006).