| Abbreviation | Definition |
|---|---|
| ECEG | Electronic Crime Expert Group |
| ECER | East Coast Electronics Recycling |
| ECET | Electronics and Computer Engineering Technology |
| ECF | Electronic Claim File |
| ECF | Electronic Claims Files |
| ECF | Electronic Copyright Form |
| ECFI | Electronic Control Fuel Injection |
| ECFI | Electronic Court Filing Integration |
| ECFR | Electronic Code of Federal Regulations |
| ECFS | Electronic Case Filing System |
| ECG | Electronic Component Guide |
| ECG | Electronic Control Gear |
| ECH | Electric Chain Hoist |
| ECI | Electrical Components International |
| ECI | Electrical Consultants, Inc. |
| ECI | Electronic Commerce Indicator |
| ECIA | Electronic Components Industry Association |
| ECIB | Electronic Credit Information Bureau |
| ECIE | Electronics Circuits and Information Engineering |
| ECIF | Electronics Communication and Instrumentation Forum |