| Abbreviation | Definition |
|---|---|
| ECEA | Essex County Education Association |
| ECFNC | Essex County Field Naturslists' Club |
| ECFR | East County Fire & Rescue |
| ECFR | Elmore County Fair and Rodeo |
| ECHS | Effingham County High School |
| ECIA | Essex County Improvement Authority |
| ECIC | Erie County Interscholastic Conference |
| ECJC | Enterprise Center in Johnson County |
| ECJC | Enterprise Center of Johnson County |
| ECMC | Erie County Medical Center |
| ECOD | Erie County Office for the Disabled |
| ECOS | East County One Stop |
| ECPH | Erie County Public Health |
| ECPL | Elbert County Public Library |
| ECPO | Eight County Physician Organization |
| ECPO | Essex County Prosecutors Office |
| ECPS | Eagle County Paramedic Services |
| ECPS | Escambia County Public Schools |
| ECPS | Essex County Public Schools |
| ECPW | Eureka County Public Works |