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International Law Research Guide

Introduction to US Treaty Research

There is no single source for finding, retrieving, or updating treaties or international agreements.  As a result, a researcher will often need to be creative and consult several sources when researching a particular treaty.  Fortunately, there are many excellent guides to point the way and well-indexed treaty collections to search.

Detailed, Explanatory Guides to Treaty Research

Individual Government Agencies Websites

Bilateral Agreements (Federal Aviation Administration)

Bilateral Investment Treaties and Related Agreements (US Department of State)

Indian Affairs: Laws and Treaties (Electronic version of the treatise compiled and edited by Charles J. Kappler)

International Antitrust and Consumer Protection Cooperation Agreements (Federal Trade Commission)

Income Tax Treaties (Internal Revenue Service)

Private International Law (US Department of State)

Trade Agreements (US Department of Agriculture)

Trade Agreements (Office of the US Trade Representative)

Trade and Related Agreements (US Department of Commerce, International Trade Administration)

US Bureau of Nonproliferation, Treaties, and Agreements (US Department of State)

US Bureau of Arms Control-related Treaties and Agreements (US Department of State)

US International Social Security Agreements (Social Security Administration)

U.S. Treaties and Other International Agreements: Current and in Force

Current and in Force

If the treaty is in force, use Treaties in Force; a List of Treaties and Other International Agreements of the United States.

 

Recommend using Treaties in Force from the following unofficial sources because of better indexing and direct links to treaties:

US Treaties: Updating TIF with Pending/Recent Treaties

  • Westlaw and LexisNexis US Treaty libraries
  • Individual government agencies 

Official Sources for U.S. Treaties: Current

  • United States Treaties and Other International Agreements (U.S.T.) (1950-)
    • Available via HeinOnline, Treaties and Agreements Library, LexisAdvance US Treaties Library, Westlaw US Treaties
  • Treaties and Other International Acts Series (T.I.A.S.) (1946-)
    • Available via HeinOnline, Treaties and Agreements Library, LexisAdvance US Treaties Library, Westlaw US Treaties
    • Also available from the U.S. Department of State website from 1996-present
  • “Legislative History” of U.S. Treaties (Senate Executive Reports, Treaty Documents, & Executive Documents).  For a brief guide on these documents, see Brooklyn Law School’s Guide
  • Foreign Relations of the United States Historical Documents (1945-1976), from Office of the Historian, U.S. Department of State 

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