| Abbreviation | Definition |
|---|---|
| AISSCE | All India Senior Secondary Certificate Examination |
| ALAP | Angel Light Advanced Practitioner |
| ALCP | Amway Leadership Certification Program |
| ALCP | Angel Light Certified Practitioner |
| ALCS | Alien Labor Certification System |
| ALECP | Airport Lighting Equipment Certification Program |
| AMCA | American Medical Certification Association |
| AMCS | Aerospace Medical Certification Subsystem |
| AMFR | Advanced Medical First Responder |
| ANCF | Advanced National Certificate in Floristry |
| ANCH | Advanced National Certificate in Horticulture |
| AOC | Air Operator Certificate |
| AOC | Annual Owner Certification |
| AOC | Annual Owners Certification |
| AOC | Appellation d’Origine Contrôlée |
| AOCA | APOF Organic Certification Agency |
| AODP | Airport Operations Diploma Programme |
| AOP | Appellation d’Origine Protégée |
| APAF | Certificate of Payment, application for final |
| APC | Advanced Professional Certificate |