| Acronym | Definition |
|---|
| ETTC➣Estimated Time to Completion |
| ETTC➣Educational Technology Training Center (Flemington, New Jersey) |
| ETTC➣Engineering Technology Transfer Center (USC) |
| ETTC➣Emergency Trauma Training Course |
| ETTC➣Environmental Technology Technical Council |
| ETTC➣Emergent Technologies Technical Committee (IEEE) |
| ETTC➣European Transport Telematics Cluster |
| ETTC➣Edmonton Twin and Triplet Club (Alberta, Canada) |
| ETTC➣Estimated Total Target Cost |