| 2016-01-01 | Creation of a new commune | 01426 | Treffort-Cuisiat → Treffort |
| 2016-01-01 | Creation of a new commune | 01426 | Treffort-Cuisiat → Val-Revermont |
| 2016-01-01 | Deletion | 01426 | Treffort-Cuisiat |
| 2016-01-01 | Creation of a new commune | 01137 → 01426 | Cuisiat → Val-Revermont |
| 2016-01-01 | Creation of a new commune | 01312 → 01426 | Pressiat → Val-Revermont |
| 1972-12-01 | Association merger | 01426 | Treffort → Treffort-Cuisiat |
| 1972-12-01 | Deletion | 01426 | Treffort |
| 1972-12-01 | Association merger | 01137 → 01426 | Cuisiat → Treffort-Cuisiat |
| 1943-01-01 | Creation | 01426 | Treffort |