Library of Congress Law Library

Library of Congress Law Library
Name	Law Library of Congress
Established	1832
Location	Thomas Jefferson Building, Washington, D.C.
Collection size	Over 2.9 million volumes and extensive digital resources
Director	Law Librarian of Congress
Website	Law Library of Congress

Contents

Library of Congress Law Library is the law library of the Library of Congress serving Congress, courts, and the public with one of the world's largest collections of legal materials. It supports legislative research for the United States Congress, provides foreign and international law expertise for the Supreme Court of the United States, and serves scholars from institutions such as Harvard University, Yale University, Columbia University, Stanford University, and Georgetown University. The Law Library collaborates with bodies including the United Nations, the World Bank, the International Criminal Court, and the Organisation for Economic Co-operation and Development.

History

The Law Library traces its roots to the early holdings acquired under the direction of the Bibliotheca Britannica era and the expansion following the War of 1812. Its formal establishment in 1832 paralleled developments in the United States Congress and the commissioning of the Thomas Jefferson Building designed by John L. Smithmeyer and Paul J. Pelz. The Law Library adapted through landmark moments such as the American Civil War, the passage of the Bill of Rights, and legal transformations during the New Deal era. Leaders like Charles Henry Butler, George F. Curtis, and modern Law Librarians navigated issues arising from the Civil Rights Movement, the enactment of the Social Security Act, and the growth of international institutions after World War II. The institution's role expanded with collaborations during treaties like the Treaty of Versailles aftermath, participation in postwar reconstruction dialogues with the Nuremberg Trials legal scholarship, and involvement in global legal information networks such as Hague Conference on Private International Law initiatives.

The Law Library's holdings encompass statutes, codes, case law, constitutions, and legal treatises from jurisdictions including the United States Code, the Constitution of the United States, and constitutions of countries like United Kingdom, France, Germany, Japan, and China. Its comparative law collections include materials related to the European Union, the Council of Europe, and African Union legal instruments. Rare and historical items document events such as the Magna Carta, the English Bill of Rights, and documents tied to figures like William Blackstone, John Marshall, Oliver Wendell Holmes Jr., Louis Brandeis, and Ruth Bader Ginsburg. The library preserves diplomatic law texts connected to the Vienna Convention on Diplomatic Relations and maritime law treatises referencing the United Nations Convention on the Law of the Sea. International arbitration resources cover institutions like the International Court of Justice, the International Criminal Tribunal for the former Yugoslavia, and the Permanent Court of Arbitration. Collections include legal periodicals from publishers such as Oxford University Press, Cambridge University Press, Wolters Kluwer, Elsevier, and Springer.

Staff provide research for committees of the United States Senate, the United States House of Representatives, and judges of the United States Courts of Appeals as well as litigants before the Supreme Court of the United States. The Law Library answers reference queries from foreign ministries like the Ministry of Justice (Japan), international organizations such as the International Monetary Fund, and academic centers including the Berkman Klein Center, Hoover Institution, and Brookings Institution. Training and outreach include workshops with the American Bar Association, collaborations with the Association of American Law Schools, and participation in conferences held by the International Association of Law Libraries and the American Library Association. Specialized services support projects involving the Legal Information Institute, the Open Society Foundations, and the Ford Foundation.

Administratively housed under the Library of Congress, leadership is provided by the Law Librarian of Congress, who works with divisions focused on foreign, international, and United States law. Staff expertise spans subject specialists familiar with jurisprudence related to figures such as Alexis de Tocqueville, Hans Kelsen, Ronald Dworkin, Jerome Frank, and institutions like the Federal Reserve System and the Department of Justice. The organization coordinates with the National Archives and Records Administration, the Smithsonian Institution, and the Government Publishing Office for preservation, acquisitions, and legal deposit activities. Professional development engages partnerships with Georgetown University Law Center, University of Chicago Law School, New York University School of Law, and the University of Michigan Law School.

Digitization initiatives make use of systems interoperable with the WorldCat union catalog, the HathiTrust Digital Library, and the Digital Public Library of America. Electronic legal databases accessible through the library include resources akin to those provided by LexisNexis, Westlaw, and specialized portals maintained in collaboration with the Library of Congress Geography and Map Division and the Law Library of Congress digital collections. Cataloging follows standards related to the Dewey Decimal Classification, the Library of Congress Classification, and international metadata schemas like Dublin Core. The Law Library contributes to linked data projects aligned with the W3C standards and participates in preservation frameworks with the National Digital Information Infrastructure and Preservation Program.

The Law Library produces research guides, reports, and publications supporting comparative law and legislative history such as analyses related to the Federalist Papers, commentary on the Civil Rights Act of 1964, and studies of the Patriot Act. Its Legal Research Reports and country surveys inform policymakers engaging with instruments like the North Atlantic Treaty, the General Agreement on Tariffs and Trade, and the Paris Agreement. Publications reach audiences at institutions including Princeton University Press, Oxford University Press, and policy outlets like Foreign Affairs and The American Journal of International Law. The Law Library hosts fellowships and internships attracting scholars from Yale Law School, Harvard Law School, Columbia Law School, and international researchers from the London School of Economics and the Graduate Institute Geneva.