Summary Information
Full Title

1995 Treaty on the Southeast Asia Nuclear Weapon-Free Zone

Short Title / Abbreviations

SEANWFZ/Bangkok Treaty

CIL Subject Classification
Date of Adoption 15/12/1995
Place of Adoption Bangkok, Thailand at the 5th ASEAN Summit
Issued/Adopted by Heads of State/Government of ASEAN
Dispute settlement provisions

Article 21: Settlement of Disputes

“Any dispute arising from the interpretation of the provisions of this Treaty shall be settled by peaceful means as may be agreed upon by the States Parties to the dispute. If within one month, the parties to the dispute are unable to achieve a peaceful settlement of the dispute by negotiation, mediation, enquiry or conciliation, any of the parties concerned shall, with the prior consent of the other parties concerned, refer the dispute to arbitration or to the International Court of Justice.”


Secretary-General of ASEAN


Procedure for a Fact-Finding Mission

Entry Into Force Status In Force
Date of Entry into Force


Entry into Force / Termination Provisions

Article 16  Entry Into Force

“1. This Treaty shall enter into force on the date of the deposit of the seventh instrument of ratification and/or accession.

2. For States which ratify or accede to this Treaty after the date of the seventh instrument of ratification or accession, the Treaty shall enter into force on the date of deposit of its instrument of ratification or accession.”

ASEAN States (Source:

ASEAN Secretariat

as of 22/05/2018)
Brunei Darussalam Signature 15/12/1995
Ratification 11/11/1996
Cambodia Signature 15/12/1995
Ratification 18/03/1997
Indonesia Signature 15/12/1995
Ratification 02/04/1997
Lao PDR Signature 15/12/1995
Ratification 24/06/1996
Malaysia Signature 15/12/1995
Ratification 05/10/1996
Myanmar Signature 15/12/1995
Ratification 10/07/1996
Philippines Signature 15/12/1995
Ratification 04/07/2001
Singapore Signature 15/12/1995
Ratification 16/03/1997
Thailand Ratification 20/03/1997
Signature 15/12/1995
Viet Nam Signature 15/12/1995
Ratification 26/11/1996
Related Instruments
Protocols / Amendments to this instrument

1995 Protocol to the Treaty on the Southeast Asia Nuclear-Weapon Free Zone

Related Instruments

1971 Zone of Peace, Freedom and Neutrality Declaration

2013-2017 Plan Of Action To Strengthen The Implementation Of The Treaty On The Southeast Asia Nuclear Weapon-Free Zone

External Links
Additional Information

Dates of ratification and accession given above were obtained from the ASEAN Secretariat’s Legal Instruments website and its electronic collection of instruments of ratification, accession and notification. Some of the dates given appear to be the dates of execution of the instruments of ratification/accession, rather than their date of receipt by the depository.