| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AFGHANISTAN | Accession | 24/07/1929 | |
| ALBANIA | Accession | 24/07/1929 | |
| Antilles | Extension | 01/01/1986 | |
| Aruba | Extension | 01/01/1986 | |
| Australia | Signature | 27/08/1928 | |
| Australia | Ratification | 02/03/1929 | |
| AUSTRIA | Accession | 24/07/1929 | |
| BARBADOS | Succession | 08/11/1971 | |
| BELGIUM | Signature | 27/03/1929 | |
| BELGIUM | Ratification | 27/03/1929 | |
| BOSNIA AND HERZEGOVINA | Succession | 15/08/1994 | |
| BRAZIL | Accession | 10/05/1934 | |
| BULGARIA | Accession | 24/07/1929 | |
| Canada | Signature | 27/08/1928 | |
| Canada | Ratification | 02/03/1929 | |
| CHILE | Accession | 12/08/1929 | |
| CHINA | Accession | 24/07/1929 | |
| COLOMBIA | Accession | 28/05/1931 | |
| COSTA RICA | Accession | 01/10/1929 | |
| CUBA | Accession | 24/07/1929 | |
| CZECHOSLOVAKIA | Signature | 27/08/1928 | |
| CZECHOSLOVAKIA | Ratification | 02/03/1929 | |
| DANZIG | Accession | 11/09/1929 | |
| DENMARK | Accession | 24/07/1929 | |
| DOMINICA, COMMONWEALTH OF | Succession | 18/07/1988 | |
| DOMINICAN REPUBLIC | Accession | 24/07/1929 | |
| ECUADOR | Accession | 24/02/1932 | |
| EGYPT | Accession | 24/07/1929 | |
| ESTONIA | Accession | 24/07/1929 | |
| ETHIOPIA | Accession | 24/07/1929 | |
| FINLAND | Accession | 24/07/1929 | |
| FRANCE | Signature | 27/08/1928 | |
| FRANCE | Ratification | 22/04/1929 | |
| GERMANY | Signature | 27/08/1928 | |
| GERMANY | Ratification | 02/03/1929 | |
| GREECE | Accession | 03/08/1929 | |
| GUATEMALA | Accession | 24/07/1929 | |
| HAYTI | Accession | 10/03/1930 | |
| HEJAZ | Accession | 24/02/1932 | |
| HONDURAS | Accession | 05/08/1929 | |
| HUNGARY | Accession | 24/07/1929 | |
| ICELAND | Accession | 24/07/1929 | |
| India | Signature | 27/08/1928 | |
| India | Ratification | 02/03/1929 | |
| IRAQ | Accession | 23/03/1932 | |
| Irish Free State | Signature | 27/08/1928 | |
| Irish Free State | Ratification | 02/03/1929 | |
| ITALY | Signature | 27/08/1928 | |
| ITALY | Ratification | 02/03/1929 | |
| JAPAN | Ratification | 24/07/1929 | |
| JAPAN | Signature | 27/08/1929 | |
| LATVIA | Accession | 24/07/1929 | |
| LIBERIA | Accession | 24/07/1929 | |
| LITHUANIA | Accession | 24/07/1929 | |
| LUXEMBOURG | Accession | 24/08/1929 | |
| MEXICO | Signature | 26/11/1929 | |
| NETHERLANDS THE | Accession | 24/07/1929 | |
| NETHERLANDS THE | Declaration | 01/01/1986 | |
| New Zealand | Signature | 27/08/1928 | |
| New Zealand | Ratification | 02/03/1929 | |
| NICARAGUA | Accession | 24/07/1929 | |
| NORWAY | Accession | 24/07/1929 | |
| PANAMA | Accession | 24/07/1929 | |
| PARAGUAY | Accession | 04/12/1929 | |
| PERSIA | Accession | 25/07/1929 | |
| PERU | Accession | 24/07/1929 | |
| POLAND | Signature | 27/08/1928 | |
| POLAND | Ratification | 25/03/1929 | |
| PORTUGAL | Accession | 24/07/1929 | |
| ROUMANIA | Accession | 24/07/1929 | |
| SIAM | Accession | 24/07/1929 | |
| South Africa | Signature | 27/08/1928 | |
| South Africa | Ratification | 02/03/1929 | |
| SOVIET UNION | Accession | 24/07/1929 | |
| SPAIN | Accession | 24/07/1929 | |
| SWEDEN | Accession | 24/07/1929 | |
| SWITZERLAND | Accession | 02/12/1929 | |
| TURKEY | Accession | 24/07/1929 | |
| UNITED KINGDOM | Signature | 27/08/1928 | |
| UNITED KINGDOM | Ratification | 02/03/1929 | |
| UNITED STATES OF AMERICA | Signature | 27/08/1928 | |
| UNITED STATES OF AMERICA | Ratification | 02/03/1929 | |
| VENEZUELA | Accession | 24/10/1929 | |
| YUGOSLAVIA | Signature | 24/07/1929 |