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
Algeria
09-03-2007 (A)
09-03-2007
Antigua and Barbuda
13-12-1988 (Su)
01-11-1981
Argentina
26-03-1975
05-05-1993 (R)
05-05-1993
Armenia
19-01-2018 (A)
19-01-2018
Australia
11-03-1986 (A)
11-03-1986
Austria
14-10-1975
06-03-1980 (R)
06-03-1980
Bahrain
06-07-2021 (A)
06-07-2021
Belarus
30-06-1975
26-01-1978 (R)
26-01-1978
Belgium
19-03-1975
24-02-1977 (R)
24-02-1977
Brazil
17-03-2006 (A)
17-03-2006
Bulgaria
04-02-1976
11-05-1976 (R)
15-09-1976
Burundi
13-11-1975
Canada
14-02-1975
04-08-1976 (R)
15-09-1976
Chile
17-09-1981 (A)
17-09-1981
China
12-12-1988 (A)
12-12-1988
Colombia
10-01-2014 (A)
10-01-2014
Costa Rica
14-10-2010 (A)
14-10-2010
Cuba
10-04-1978 (A)
10-04-1978
Cyprus
06-07-1978 (A)
06-07-1978
Czech Republic
22-02-1993 (Su)
01-01-1993
Czechoslovakia (<01-01-1993)
05-04-1976
26-07-1977 (R)
26-07-1977
Democratic People's Republic of Korea
10-03-2009 (A)
10-03-2009
Denmark
12-12-1975
01-04-1977 (R)
01-04-1977
Djibouti
14-07-2022 (A)
14-07-2022
Ecuador
17-03-2025 (A)
17-03-2025
ESA (European Space Agency)
02-01-1979 (R)
02-01-1979
EUMETSAT (European Organisation for the exploitation of meteorological satellites)
10-07-1997 (R)
10-07-1997
EUTELSAT IGO (European Telecommunications Satellite Organization)
10-06-2014 (R)
10-06-2014
Finland
15-01-2018 (A)
15-01-2018
France
14-01-1975
17-12-1975 (R)
15-09-1976
Germany
02-03-1976
16-10-1979 (R)
16-10-1979
Greece
27-05-2003 (A)
27-05-2003
Hungary
13-10-1975
26-10-1977 (R)
26-10-1977
India
18-01-1982 (A)
18-01-1982
Indonesia
16-07-1997 (A)
16-07-1997
Intersputnik International Organization of Space Communications