| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
| Cameroon | December 13, 1979 | | | |
| Czech Republic | | Declaration / Notification of Succession: September 30, 1993 | | Details |
| Ecuador | | Accession: October 26, 1994 | | |
| Egypt | | Accession: February 11, 1982 | | |
| Holy See | December 13, 1979 | | | |
| India | | Accession: January 31, 1983 | | Details |
| Iraq | | Accession: July 15, 1981 | | |
| Israel | December 13, 1979 | | | |
| Liberia | | Accession: September 16, 2005 | | |
| Peru | | Accession: April 15, 1988 | | |
| Slovakia | | Declaration / Notification of Succession: May 28, 1993 | | Details |