Signature of the Berne Convention (1886): September 9, 1886; Ratification: October 16, 1908; Entry into force: October 16, 1908. Denunciation of the Berlin Act (1908) and the Berne Additional Protocol (1914) on February 22, 1929, with effect from February 22, 1930.
| Act(s) | Article(s) | Signature | Instrument | Entry into Force |
|---|---|---|---|---|
| Paris Act (1971) | Accession : December 8, 1988 | March 8, 1989 | ||
| Berne Additional Protocol (1914) | March 20, 1914 | Ratification : May 31, 1920 | September 9, 1921 | |
| Berlin Act (1908) | November 13, 1908 | Ratification : June 9, 1910 | September 9, 1910 | |
| Paris Additional Act (1896) | Accession : October 16, 1908 | October 16, 1908 |
Accession to the Paris Act (1971) included a notification in which the Government of the Republic of Liberia declared that it availed itself of the faculties provided for in Article II and III of the said Appendix. The relevant declaration was effective from March 8, 1989, until October 10, 1994. (see Berne Notification No. 122)
Paris Act (1971): With the declaration provided for in Article 33(2) relating to the International Court of Justice. (see Berne Notification No. 122)