| Abbreviation | Definition |
|---|---|
| TCAS | Traffic Alert and Collision Avoidance System |
| TCASII | Traffic Alert and Collision Avoidance System, version II |
| TCBN | Toronto Community Benefits Network |
| TCC | Tank Car Committee |
| TCC | Torque Converter Clutch |
| TCC | Transportation Choices Coalition |
| TCC | Transportation Construction Coalition |
| TCC | Transportation Control Center |
| TCC | Transportation Coordinating Committee |
| TCCC | Tower Control Computer Complex |
| TCCC | Transportation and Climate Change Clearinghouse |
| TCCS | Toyota Computer Controlled System |
| TCD | Traffic Control Devices |
| TCD | Transportation Cross Docking |
| TCE | Transportation Civil Engineer |
| TCH | Threshold Crossing Height |
| TCH | Trans-Canada Highway |
| TCH | Transmission Clutch Hydraulic |
| TCH | Transmissions, Converters, and Hydraulics |
| TCI | Transistor Controlled Ignition |