Publisher: Office of the Legal Adviser, U.S. Department of State Publication Website:https://www.state.gov/treaties-in-force/ Coverage: 1929-2023 ISSN: 0083-0194 Frequency: 1 Additional Info: Treaties in Force is an indexing tool for starting research on in-force treaties and agreements. Published annually by the Department of State since 1955, TIF provides a brief summary of all treaties and other international agreements, both bilateral and multilateral, which are considered to be in force for the United States as of January of the respective year. Bilateral treaties are arranged by country and grouped into subjects under each country, while multilateral treaties are arranged by subject. HeinOnline includes all previously published volumes of TIF.