| State | Sweden |
| Treaty | Biological Weapons Convention |
| Action Type | Signature |
| Depositary | Government of the United Kingdom |
| Date | 27 February 1975 |
| Other Actions | Ratification on deposit with London — 5 February 1976 Ratification on deposit with Moscow — 5 February 1976 Signature on deposit with Moscow — 27 February 1974 Signature on deposit with Washington — 27 February 1975 Ratification on deposit with Washington — 5 February 1976 |