| Country | Action | Action Date | Effective Date |
|---|
| Antilles | Extension | 01/01/1986 | |
| ARGENTINE REPUBLIC | Accession | 15/06/1907 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Succession | 01/04/1960 | |
| AUSTRIA-HUNGARY | Signature | 29/07/1899 | |
| AUSTRIA-HUNGARY | Ratification | 04/09/1900 | |
| BELGIUM | Signature | 29/07/1899 | |
| BELGIUM | Ratification | 04/09/1900 | |
| BOLIVIA | Accession | 15/06/1907 | |
| BRAZIL | Accession | 15/06/1907 | |
| BULGARIA | Signature | 29/07/1899 | |
| BULGARIA | Ratification | 04/09/1900 | |
| BYELORUSSIA S S R | Succession | 04/06/1962 | |
| CAMBODIA | Accession | 04/01/1956 | |
| CAMEROON | Accession | 01/08/1961 | |
| CANADA | Succession | 19/08/1960 | |
| CEYLON | Succession | 09/02/1955 | |
| CHILE | Accession | 15/06/1907 | |
| CHINA | Signature | 29/07/1899 | |
| CHINA | Ratification | 21/11/1904 | |
| COLOMBIA | Accession | 15/06/1907 | |
| CONGO, DEMOCRATIC REPUBLIC OF | Accession | 25/03/1961 | |
| CROATIA | Succession | 02/10/1998 | 08/10/1991 |
| CUBA | Accession | 15/06/1907 | |
| DENMARK | Signature | 29/07/1899 | |
| DENMARK | Ratification | 04/09/1900 | |
| DOMINICAN REPUBLIC | Accession | 15/06/1907 | |
| ECUADOR | Accession | 03/07/1907 | |
| FIJI | Succession | 02/04/1973 | |
| FRANCE | Signature | 29/07/1899 | |
| FRANCE | Ratification | 04/09/1900 | |
| GERMANY | Signature | 29/07/1899 | |
| GERMANY | Ratification | 04/09/1900 | |
| GREECE | Signature | 29/07/1899 | |
| GREECE | Ratification | 04/04/1901 | |
| GUATEMALA | Accession | 15/06/1907 | |
| HAYTI | Accession | 15/06/1907 | |
| ICELAND | Accession | 08/12/1955 | |
| INDIA | Succession | 29/07/1950 | |
| IRAQ | Reservation | 01/01/1905 | |
| IRAQ | Declaration | 01/01/1905 | |
| IRAQ | Accession | 31/08/1970 | |
| ITALY | Signature | 29/07/1899 | |
| ITALY | Ratification | 04/09/1900 | |
| JAPAN | Signature | 29/07/1899 | |
| JAPAN | Ratification | 06/10/1900 | |
| KYRGYZSTAN | Succession | 17/04/1992 | |
| LAOS | Accession | 18/07/1955 | |
| LEBANON | Accession | 14/02/1968 | |
| LUXEMBOURG | Signature | 29/07/1899 | |
| LUXEMBOURG | Ratification | 12/07/1901 | |
| MACEDONIA THE FYR OF | Bound | 14/11/2000 | 17/11/1991 |
| MAURITIUS | Succession | 03/08/1970 | |
| MEXICO | Signature | 29/07/1899 | |
| MEXICO | Ratification | 17/04/1901 | |
| MONTENEGRO | Signature | 29/07/1899 | |
| MONTENEGRO | Ratification | 16/10/1900 | |
| MONTENEGRO | Succession | 01/03/2007 | 03/06/2006 |
| NETHERLANDS THE | Signature | 29/07/1899 | |
| NETHERLANDS THE | Ratification | 04/09/1900 | |
| NETHERLANDS THE | Declaration | 18/10/2010 | |
| NEW ZEALAND | Succession | 10/02/1959 | |
| NICARAGUA | Accession | 15/06/1907 | |
| PAKISTAN | Succession | 05/08/1950 | |
| PANAMA | Accession | 15/06/1907 | |
| PARAGUAY | Accession | 15/06/1907 | |
| PERSIA | Signature | 29/07/1899 | |
| PERSIA | Ratification | 04/09/1900 | |
| PERU | Accession | 15/06/1907 | |
| PORTUGAL | Signature | 29/07/1899 | |
| PORTUGAL | Ratification | 04/09/1900 | |
| ROUMANIA | Signature | 29/07/1899 | |
| ROUMANIA | Ratification | 04/09/1900 | |
| ROUMANIA | Reservation | 04/09/1900 | |
| RUSSIA | Signature | 29/07/1899 | |
| RUSSIA | Ratification | 04/09/1900 | |
| SALVADOR | Accession | 20/06/1907 | |
| SENEGAL | Accession | 01/08/1977 | |
| SERBIA | Signature | 29/07/1899 | |
| SERBIA | Ratification | 11/05/1901 | |
| SERBIA | Reservation | 11/05/1901 | |
| SIAM | Signature | 29/07/1899 | |
| SIAM | Ratification | 04/09/1900 | |
| SLOVENIA | Succession | 01/10/1996 | |
| SOUTH AFRICA | Succession | 22/10/1998 | 21/12/1998 |
| SOVIET UNION | Accession | 07/03/1955 | |
| SPAIN | Signature | 29/07/1899 | |
| SPAIN | Ratification | 04/09/1900 | |
| SWEDEN AND NORWAY | Signature | 29/07/1899 | |
| SWEDEN AND NORWAY | Ratification | 04/09/1900 | |
| SWITZERLAND | Signature | 29/07/1899 | |
| SWITZERLAND | Ratification | 29/12/1900 | |
| TURKEY | Signature | 29/07/1899 | |
| TURKEY | Reservation | 29/07/1899 | |
| TURKEY | Ratification | 12/06/1907 | |
| UKRAINE | Accession | 04/04/1962 | |
| UNITED KINGDOM | Signature | 29/07/1899 | |
| UNITED KINGDOM | Ratification | 04/09/1900 | |
| UNITED STATES OF AMERICA | Signature | 29/07/1899 | |
| UNITED STATES OF AMERICA | Ratification | 04/09/1900 | |
| UNITED STATES OF AMERICA | Reservation | 04/09/1900 | |
| UPPER VOLTA | Accession | 30/08/1961 | |
| URUGUAY | Accession | 17/06/1907 | |
| VENEZUELA | Accession | 15/06/1907 | |
| VIETNAM, SOCIALIST REP OF | Accession | 29/12/2011 | 29/12/2011 |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 04/09/2001 | 11/04/1992 |