| Acronym | Definition |
|---|
| IETA➣International Emissions Trading Association |
| IETA➣Industrial Electronics, Technology, Automation (international conference) |
| IETA➣Insulation & Environmental Training Agency (UK) |
| IETA➣Inheritance and Estate Tax Act (Pennsylvania) |
| IETA➣Indigenous Education and Training Alliance (Australia) |
| IETA➣Independent E-Mail Trust Authorities |