| State | Canada |
| Treaty | Treaty on the Non-Proliferation of Nuclear Weapons (NPT) |
| Action Type | Ratification |
| Depositary | Government of the Russian Federation |
| Date | 8 January 1969 |
| Other Actions | Signature on deposit with London — 23 July 1968 Ratification on deposit with London — 8 January 1969 Signature on deposit with Moscow — 29 July 1968 Signature on deposit with Washington — 23 July 1968 Ratification on deposit with Washington — 8 January 1969 |