| Party | Signature | Provisional application  | 
                  RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance, Approval or Notification A=Accession Su=Succession NK=Not Known | Entry into force | Renunciation | Termination | 
|---|---|---|---|---|---|---|
| Austria | 04-11-1969 (R) | 04-11-1970 | ||||
| Barbados | 15-09-1972 (R) | 15-09-1973 | ||||
| Belgium | 14-06-2017 (R) | 14-06-2018 | ||||
| Bolivia | 31-01-1977 (R) | 31-01-1978 | ||||
| Cyprus | 07-01-1969 (R) | 07-01-1970 | ||||
| Czech Republic | 01-01-1993 (Su) | 01-01-1993 | ||||
| Ecuador | 05-04-1978 (R) | 05-04-1979 | ||||
| Finland | 13-01-1976 (R) | 13-01-1977 | ||||
| Germany | 15-01-1971 (R) | 15-01-1972 | ||||
| Libya | 19-06-1975 (R) | 19-06-1976 | ||||
| Netherlands, the Kingdom of the | 27-10-1969 (R) | 27-10-1970 | ||||
| Norway | 01-11-1968 (R) | 01-11-1969 | ||||
| Slovakia | 01-01-1993 (Su) | 01-01-1993 | ||||
| Sweden | 26-07-1968 (R) | 01-11-1969 | ||||
| Switzerland | 13-09-1977 (R) | 13-09-1978 | ||||
| Uruguay | 28-06-1973 (R) | 28-06-1974 | ||||
| Venezuela | 01-12-1983 (R) | 01-12-1984 |