| Abbreviation | Definition |
|---|---|
| ERWG | Emission Reduction Working Group |
| ETWG | Economic and Trade Working Group |
| ETWG | Education and Training Working Group |
| ETWG | Education Technical Working Group |
| ETWG | Education Thematic Working Group |
| ETWG | Educational Technology Working Group |
| ETWG | Electronic Trading Working Group |
| ETWG | Elevation Technical Working Group |
| ETWG | Emerging Technologies Working Group |
| ETWG | Emerging Technology Working Group |
| ETWG | Environmental Taxes Working Group |
| ETWG | Environmental Testing Working Group |
| ETWG | Environmental Trade Working Group |
| ETWG | Environmental Training Working Group |
| ETWG | Eukaryotic Taxonomy Working Group |
| ETWG | explosive Transport Working Group |
| EWG | Energy Working Group |
| EWG | Executive Working Group |
| EWWG | Electronic Warfare Working Group |
| FAWG | Fields Analysis Working Group |