International Law Guide

Contains major United Nations legal publications, including the United Nations Treaty Series (U.N.T.S.), the League of Nations Treaty Series (L.N.T.S.), the ICJ’s official Reports of Judgments, Advisory Opinions and Orders, UNCITRAL Publications, UNIDIR Publications, the U.N. Legislative Series and more. Features treaty citation search and links to law review articles that cite a U.N. treaty.

Index from the U.S. State Department providing information on bilateral and multilateral treaties currently in force for the U.S.

From the U.S. Government Publishing Office.

Information on treaties submitted to the Senate.

United States tax agreements with other countries. From the IRS.

From the United Nations. The Research Library contains links to onine resources for treaties (including a list of treaty collections maintained by individual states), cases, and other documents and publications.

Gateway to online sources of treaties organized by country, subject or international organization.

Background on international humanitarian law, along with links to and information on the major humanitarian treaties.

Collection of historical treaties and documents.

UNCTAD's database provides access to Bilateral Investment Treaties (BITs) and other investment agreements from around the world.

From the Free Trade Area of the Americas

Provides in-force, pending, terminated and unperfected tax treaties.

Multilateral, regional and bilateral agreements, provided by the OAS as part of its Foreign Trade Information System (SICE).

From the Trade Compliance Center of the U.S. Department of Commerce.

A great resource for cite-checkers. From the University of Minnesota Law Library.

An up-to-date guide to treaty and other public international law research with an emphasis on online resources. From the American Society of International Law.

Information on significant multilateral treaties since 1856, from the Institute of Advanced Legal Studies at the University of London.