| 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 |
|---|---|---|---|---|---|---|
| Belgium | 13-02-1967 (R) | 13-02-1967 | ||||
| Luxembourg | 13-02-1967 (R) | 13-02-1967 | ||||
| Netherlands, the Kingdom of the | 05-02-1966 (R) | 13-02-1967 | ||||
| Paraguay | 25-08-1966 (R) | 13-02-1967 |