Accession to the Washington Act (1911) by the Czechoslovak Republic: July 19, 1921, Entry into force: September 30, 1921. Signature of the Hague Act (1925): November 6, 1925; Accession: January 30, 1933; Entry into force: March 3, 1933. Signature of the London Act (1934): June 2, 1934. Accession to the Lisbon Act (1958) by the Czechoslovak Socialist Republic: August 12, 1961; Entry into force: June 1, 1963. Accession to the Additional Act of Stockholm (1967): September 22, 1970; Entry into force: December 29, 1970. Declaration of continued application by the Czech Republic: December 18, 1992. Entry into force date given as date of independence.
| Act(s) | Article(s) | Signature | Instrument | Entry into Force |
|---|---|---|---|---|
| Additional Act of Stockholm (1967) | Declaration of Continued Application : December 18, 1992 | January 1, 1993 | ||
| Lisbon Act (1958) | Declaration of Continued Application : December 18, 1992 | January 1, 1993 |