| Abbreviation | Definition |
|---|---|
| ACAP | Automated Collections Action Program |
| ACAP | AXIS Camera Application Platform |
| ACAPS | Access Card and Parking Services |
| ACAPS | Advanced Computer Architecture and Processing Systems |
| ACAPS | Assessment Committee Application Processing System |
| ACAPS | Asymptomatic Carotid Artery Plaque Study |
| ACAPS | Asymptomatic Carotid Artery Progression Study |
| ACAR | Ada County Association of REALTORS |
| ACAR | Admin Command Access Right |
| ACAR | Aged Care Approvals Round |
| ACAR | Alabama Coalition Against Rape |
| ACAR | Angular Correlation of Annihilation Radiation |
| ACARS | Aircraft Communications Addressing and Reporting System |
| ACARS | Aircraft Communications and Reporting System |
| ACAS | Affiliate Conformity Assessment Status |
| ACAS | Assured Compliance Assessment Solution |
| ACASA | Ackoff Center for Advancement of Systems Approaches |
| ACASA | Allegany Council on Alcoholism and Substance Abuse |
| ACASA | Amsterdam Centre for Ancient Studies and Archaeology |
| ACASA | Archives Of Czechs And Slovaks Abroad |