Centre for International Law

International Workshop on Treaty Law and Practice (2012)

CIL and the British Institute of International and Comparative Law (the Institute) co-organized a Workshop on Treaty Law and Practice from the 16th to the 19th of January 2012 in Singapore at the Grand Copthorne Hotel. The first of its kind, the Singapore Workshop focused on the operational aspects of treaty practice which comprise the daily work inside treaty offices all over the world, and on which very little published information is available. Good treaty practice is vital to the clarity of states’ international legal relations and to their ability to comply with international law. The Workshop provided a rare opportunity for treaty officers to exchange views and experiences with their counterparts from other countries in the region as well as international experts in the field. The Workshop’s output includes a set of recommendations designed to improve treaty practices in the region.

The Workshop report provides a summary of the proceedings and discussions at the Workshop and an overview of a larger project on best treaty practice of which the Workshop comprised a key element.

An Executive Summary of the report is available here.
The full report (80 pages) is available here.

Compilation of Constitutional and Legislative Provisions on Treaty Practice of ASEAN Member States and ASEAN – A new online resource

This is a compilation of the most important constitutional, legislative and other official provisions relevant to treaty practice of the ASEAN Member States and ASEAN itself. It has been compiled jointly by the Institute and the Centre for International Law Singapore (CIL).

For ASEAN Member States, it includes provisions relating to all aspects of national treaty practice including negotiation, signature, parliamentary scrutiny, consent to be bound, implementation and status of treaties in domestic law. The provisions are arranged in (broadly) the following order:

  • Constitutional provisions
  • Statutory provisions
  • Regulations, Orders or other kinds of secondary legislation
  • Other documentation which sets out official requirements, conventions or procedures, including internal practice manuals whether published or unpublished.
  • Official online sources of treaty status information

For ASEAN, it includes provisions concerning its powers and responsibilities in relation to treaties, including depositary functions, registration, publication, negotiation, signature, scrutiny, consent to be bound, implementation and compliance. They are arranged in (broadly) the following order:

  • Provisions in the Organisation’s constitution or governing statutes
  • Provisions in any other statutes, rules, regulations, decisions, resolutions, etc. of the Organisation
  • Any other organisational guidance or procedures, including internal practice manuals whether published or unpublished.
  • Online sources of the organisation’s treaty status information

This Compilation was produced by the Institute and CIL as a handbook of reference material for participants at the Workshop on Treaty Law and Practice held in Singapore on 16-19 January 2012, and has subsequently been updated and adapted for publication as an online resource.

Copyright in the referenced texts is vested as indicated on the original source. Copyright in the selection itself and in the added material belongs to the Institute and CIL. This compilation may not be reproduced without the express permission of the Institute and CIL.

Please note that this section only contains materials relating to the treaty practice of ASEAN and ASEAN Member States. For the full compilation of constitutional and legislative provisions on treaty practice of all the States and International Organisations studied in this research project, click here.

Table of Contents

A. ASEAN Member States

  1. Brunei Darussalam
  2. Cambodia
  3. Indonesia
  4. Laos
  5. Malaysia
  6. Myanmar
  7. The Philippines
  8. Singapore
  9. Thailand
  10. Viet Nam

B. Association of Southeast Asian Nations