| State | Peru |
| Treaty | Outer Space Treaty |
| Action Type | Ratification |
| Depositary | Government of the Russian Federation |
| Date | 28 February 1979 |
| Other Actions | Ratification on deposit with London — 1 March 1979 Ratification on deposit with Washington — 21 March 1979 Signature on deposit with Washington — 30 June 1967 |