| IEPA | Idl Expert Programmers Association 
| Others |
| IEPA | Illinois Environmental Protection Agency
| Others |
| IEPA | Illinois EPA
| Others |
| IEPA | Independent Elon Program Abroad
| Others |
| IEPA | Independent Energy Producers Association
| Others |
| IEPA | Individual Educational Purchase Application
| Others |
| IEPA | Individual Expert Participation Agreement
| Others |
| IEPA | Inter Ethnic Placement Act
| Others |
| IEPA | International Early Psychosis Association
| Others |
| IEPA | International Education Policy Analysis
| Others |
| IEPA | International Educator Placement Of America
| Others |
| IEPA | International Environment Photographers Association
| Others |
| IEPA | Irish Environmental Protection Agency
| Others |