| Abbreviation | Definition |
|---|---|
| ACHS | Alachua County Humane Society |
| ACHS | Amherst County High School |
| ACHS | Appomattox County High School |
| ACI | Alameda County Industries |
| ACIA | Atlantic County Improvement Authority |
| ACIC | Allegheny County Immunization Coalition |
| ACIC | Allen County Intermediate Center |
| ACISD | Aransas County Independent School District |
| ACIT | Atlantic County Institute of Technology |
| ACJ | Allegheny County Jail |
| ACJC | Allen County Juvenile Center |
| ACJC | Arts Council of Johnson County |
| ACLA | Allegheny County Library Association |
| ACLA | Allen County Learning Academy |
| ACLB | Albany County Land Bank |
| ACLC | Alachua County Labor Coalition |
| ACLC | Alameda County Leather Corps |
| ACLD | Atchison County Levee District |
| ACLL | Allegheny County Law Library |
| ACMC | Arts Council of Mendocino County |