Treaties
Welcome to the FCO Treaty Section pages, including the UK Treaties Online service. We support the FCO and other government departments with advice on practice and procedural matters relating to the conclusion of treaties by the United Kingdom. We also provide information on those treaties to which the UK is, or has been a party.
We provide a range of regular services, as follows:
Our Procedures Team:
- advise on UK treaty practice and procedure including preparation of treaty texts, instruments of ratification and Full Powers (authority to sign treaties on behalf of the UK)
Our Information Team
- provide UK Treaties Online, a interactive database enabling users of this site to research details of bilateral and multilateral treaties applying to the UK
- offer an enquiry service which can help explain or clarify information on bilateral and multilateral treaties applying to the UK.
- from 2010, publish a regular Bulletin of recent changes to UK treaties in force.
Access details of over 14,000 treaties that the UK has been involved in
Our Treaty Section maintains a database of treaties, which holds details of all the treaties to which the UK is, or has been, a party
Advice on UK treaty practice and procedure including preparation of treaty texts, instruments of ratification and full powers
Status of multilateral treaties applying to the UK overseas territories
The UK is the legal depositary for numerous multilateral treaties on a wide range of subjects
Information on the publication of treaties
United Nations registered treaties that have entered into force for the UK
Treaties that may apply in certain circumstances, or to defined territorial areas
Links to international organisations, other States' treaty websites, and other international law websites useful for further research
Full texts of a range of treaties involving the UK
Vienna treaties applying to the United Kingdom
Contact us:
Our Treaty Enquiry Service (which is free of charge) is open from 0900 to 1700 Monday to Friday.
Tel: 020 7008 1109
Fax: 020 7008 1115.
Email: treaty.fco@gtnet.gov.uk
Written enquiries can also be made to:
Treaty Enquiry Service
Legal Advisers Directorate
Foreign and Commonwealth Office
Rm W.LG 167
London
SW1A 2AH
Further Information:
We also provide the following on our treaty pages: