| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Ratification | 16/05/1979 | 16/05/1980 |
| Anguilla | Decision Resvd. | 08/06/1977 | |
| Antigua | Decision Resvd. | 16/01/1979 | |
| Aruba | App without mod | 18/02/1986 | |
| AUSTRIA | Ratification | 18/09/1978 | 18/09/1979 |
| BELIZE | Ratification | 22/06/1999 | 22/06/2000 |
| Berlin West | Extension | 05/12/1978 | |
| BRAZIL | Ratification | 27/09/1994 | 27/09/1995 |
| COSTA RICA | Ratification | 23/07/1991 | 23/07/1992 |
| CUBA | Ratification | 14/04/1977 | 14/04/1978 |
| CYPRUS | Ratification | 28/06/1977 | 28/06/1978 |
| DENMARK | Ratification | 06/06/1978 | 06/06/1979 |
| DENMARK | Declaration | 06/06/1978 | |
| ECUADOR | Ratification | 26/10/1977 | 26/10/1978 |
| Falkland Islands | App without mod | 26/03/1979 | |
| FINLAND | Ratification | 14/09/1977 | 14/09/1978 |
| FRANCE | Ratification | 10/09/1984 | 10/09/1985 |
| FRANCE | Declaration | 09/05/1986 | 09/05/1986 |
| French Guiana | App without mod | 09/05/1986 | |
| French Polynesia | App without mod | 09/05/1986 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 05/12/1978 | 05/12/1979 |
| GERMANY FEDERAL REPUBLIC | Declaration | 05/12/1978 | |
| Gibraltar | Not Applicable | 05/12/1977 | |
| Gilbert Islands | App without mod | 21/11/1977 | 15/02/1978 |
| GREECE | Ratification | 17/10/1989 | 17/10/1990 |
| Guadeloupe | App without mod | 09/05/1986 | |
| GUATEMALA | Ratification | 13/06/1989 | 13/06/1990 |
| Guernsey | App without mod | 20/02/1979 | 20/02/1979 |
| GUYANA | Ratification | 10/01/1983 | 10/01/1984 |
| Hong Kong | App. with mods. | 03/01/1978 | |
| Hong Kong | App. with mods. | 20/07/1979 | |
| HUNGARY | Ratification | 04/01/1994 | 04/01/1995 |
| INDIA | Ratification | 18/08/1977 | 18/08/1978 |
| ISRAEL | Ratification | 21/06/1979 | 21/06/1980 |
| ITALY | Ratification | 18/10/1979 | 18/11/1980 |
| KENYA | Ratification | 09/04/1979 | 09/04/1980 |
| MALTA | Ratification | 09/06/1988 | 09/06/1989 |
| Martinique | App without mod | 09/05/1986 | |
| MEXICO | Ratification | 28/06/1978 | 28/06/1979 |
| MOLDOVA REPUBLIC OF | Ratification | 04/04/2003 | 04/04/2004 |
| Montserrat | Decision Resvd. | 23/05/1977 | |
| NETHERLANDS THE | Ratification | 26/01/1977 | 26/01/1978 |
| NETHERLANDS THE | Declaration | 18/02/1986 | 18/02/1986 |
| New Caledonia | App without mod | 09/05/1986 | |
| NICARAGUA | Ratification | 01/10/1981 | 01/10/1982 |
| NORWAY | Ratification | 24/11/1976 | |
| PHILIPPINES | Ratification | 18/06/1979 | 18/06/1980 |
| Reunion | App without mod | 09/05/1986 | |
| SLOVAK REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| SPAIN | Ratification | 28/04/1978 | 28/04/1979 |
| St Christopher, Nevis | Decision Resvd. | 08/06/1977 | |
| St Helena | Decision Resvd. | 07/06/1983 | |
| St Pierre and Miquelon | App without mod | 09/05/1986 | |
| SWEDEN | Ratification | 19/07/1976 | |
| SWITZERLAND | Ratification | 23/05/1977 | 23/05/1978 |
| UNITED KINGDOM | Ratification | 15/02/1977 | |
| URUGUAY | Ratification | 19/06/1989 | 19/06/1990 |
| VENEZUELA | Ratification | 05/07/1983 | 05/07/1984 |
| ZAMBIA | Ratification | 04/12/1978 | 04/12/1979 |