| 151 |
Outer Space Treaty |
 |
Solomon Islands |
|
Non-party |
| London |
- |
- |
| Moscow |
- |
- |
| Washington |
- |
- |
| UN |
- |
- |
|
|
| 152 |
Outer Space Treaty |
 |
Somalia |
|
Signatory |
| London |
- |
- |
| Moscow |
- |
- |
| Washington |
02/02/1967 |
- |
| UN |
- |
- |
|
|
| 153 |
Outer Space Treaty |
 |
South Africa |
|
Ratified |
| London |
- |
10/08/1968 |
| Moscow |
- |
11/14/1968 |
| Washington |
03/01/1967 |
09/30/1968 |
| UN |
- |
- |
|
|
| 154 |
Outer Space Treaty |
 |
Spain |
|
Acceded |
| London |
- |
11/27/1968 |
| Moscow |
- |
- |
| Washington |
- |
12/07/1968 |
| UN |
- |
- |
|
|
| 155 |
Outer Space Treaty |
 |
Sri Lanka |
|
Ratified |
| London |
03/10/1967 |
11/18/1986 |
| Moscow |
- |
11/18/1986 |
| Washington |
- |
11/18/1986 |
| UN |
- |
- |
|
|
| 156 |
Outer Space Treaty |
 |
Sudan |
|
Non-party |
| London |
- |
- |
| Moscow |
- |
- |
| Washington |
- |
- |
| UN |
- |
- |
|
|
| 157 |
Outer Space Treaty |
 |
Suriname |
|
Non-party |
| London |
- |
- |
| Moscow |
- |
- |
| Washington |
- |
- |
| UN |
- |
- |
|
|
| 158 |
Outer Space Treaty |
 |
Swaziland |
|
Non-party |
| London |
- |
- |
| Moscow |
- |
- |
| Washington |
- |
- |
| UN |
- |
- |
|
|
| 159 |
Outer Space Treaty |
 |
Sweden |
|
Ratified |
| London |
01/27/1967 |
10/11/1967 |
| Moscow |
01/27/1967 |
10/11/1967 |
| Washington |
01/27/1967 |
10/11/1967 |
| UN |
- |
- |
|
|
| 160 |
Outer Space Treaty |
 |
Switzerland |
|
Ratified |
| London |
01/27/1967 |
12/18/1969 |
| Moscow |
01/27/1967 |
12/18/1969 |
| Washington |
01/27/1967 |
12/18/1969 |
| UN |
- |
- |
|
|