| Abbreviation | Definition |
|---|---|
| TERC | Tribal Emergency Response Commission |
| TERD | Tampa Environmental Regulatory Department |
| TESS | Texas Excavation Safety System |
| TET | Telecommunications Excise Tax |
| TEX | Texas |
| TFN | Tobacco Free Nebraska |
| TFO | Télévision Français Ontario |
| TGIF | Thank God It's Florida |
| TGK | Turner Guilford Knight (Correctional Center in Miami-Dade County) |
| TH | Tax House |
| TH | Territory of Hawaii |
| THC | Texas Historical Commission |
| THP | Tennessee Highway Patrol |
| TI | Traffic Infraction |
| TI | Treasure Island |
| TIER | Tactically Integrated Emergency Response |
| TIER | Technology Innovation and Emissions Reduction |
| TIER | Times Interest Earned Ratio |
| TIF | tax increment financing |
| TIF | Texas Infrastructure Funds |