| Contracting party | Date of signature | Date of ratification, acceptance (Ac) or approval (Ap) | Effective date | Date of Commission membership |
| Argentina | 11 Sep 80 | 28 May 82 | 27 Jun 82 | 27 Jun 82 |
| Australia | 1 Sep 80 | 6 May 81 | 7 Apr 82 | 7 Apr 82 |
| Belgium | 11 Sep 80 | 22 Feb 84 | 23 Mar 84 | 23 Mar 84 |
| Chile | 11 Sep 80 | 22 Jul 81 | 7 Apr 82 | 7 Apr 82 |
| German Democratic Republic* | 11 Sep 80 | 30 Mar 82 (Ap) | 29 Apr 82 | 29 Apr 82 |
| Germany, Federal Republic of | 11 Sep 80 | 23 Apr 82 | 23 May 82 | 23 May 82 |
| New Zealand | 11 Sep 80 | 8 Mar 82 | 7 Apr 82 | 7 Apr 82 |
| Norway | 11 Sep 80 | 6 Dec 83 | 5 Jan 84 | 5 Jan 84 |
| Poland | 11 Sep 80 | 28 Mar 84 | 27 Apr 84 | 27 Apr 84 |
| South Africa | 1 Sep 80 | 23 Jul 81 | 7 Apr 82 | 7 Apr 82 |
| Soviet Union | 11 Sep 80 | 26 May 81 (Ac) | 7 Apr 82 | 7 Apr 82 |
| United Kingdom | 11 Sep 80 | 31 Aug 81 | 7 Apr 82 | 7 Apr 82 |
| United States of America | 11 Sep 80 | 18 Feb 82 | 7 Apr 82 | 7 Apr 82 |
| Japan | 12 Sep 80 | 26 May 81 (Ac) | 7 Apr 82 | 7 Apr 82 |
| France | 16 Sep 80 | 16 Sep 82 | 16 Oct 82 | 16 Oct 82 |
| European Economic Community | 21 Apr 82 | 21 May 82 | 21 May 82 | |
| Spain | 9 Apr 82 | 9 May 84 | 21 Oct 87 | |
| Sweden | 7 Jun 84 | 6 Jul 84 | 30 Dec 89 | |
| Uruguay | 22 Mar 85 | 22 Apr 85 | ||
| India | 17 Jun 85 | 17 Jul 85 | 29 Jun 86 | |
| Republic of Korea | 29 Mar 85 | 28 Apr 85 | 19 Nov 85 | |
| Brazil | 28 Jan 86 | 27 Feb 86 | 8 Sep 86 | |
| Greece | 12 Feb 87 | 14 Mar 87 | ||
| Canada | 1 Jul 88 | 31 Jul 88 | ||
| Italy | 29 Mar 89 | 28 Apr 89 | 30 Jun 90 | |
| Peru | 23 Jun 89 | 23 Jul 89 | ||
| Finland | 6 Sep 89 | 6 Oct 89 | ||
| Netherlands | 23 Feb 90 | 25 Mar 90 | ||
| Bulgaria | 1 Sep 92 | 30 Sep 92 |
* Membership ceased on 2 Oct 90 following unification with FGR.
The First Special Meeting of the Commission was held on 8 September 1986 under the
chairmanship of Dr Orlando R. Rebagliati (Argentina), Chairman of the Commission.
The purpose of this meeting was to consider the notification of the Government of Brazil
of the basis on which it was seeking membership of the Commission.
2. The following members of the Commission were in attendance: Argentina, Australia,
Belgium, Chile, European Economic Community, France, German Democratic Republic,
Federal Republic of Germany, Republic of Korea, India, Japan, New Zealand, Norway,
Poland, South Africa, Union of Soviet Socialist Republics, United Kingdom of Great
Britain and Northern Ireland, and United States of America.
Background
3. On 1 August 1986 the Government of Brazil in accordance with Article VII, 2(d) of
the Convention notified the Depositary Government of the basis on which it sought to
become a Member of the Commission. The notification and supporting information were
communicated to Members by the Depositary.
4. Article VII, 2(d) states that: