| Abbreviation | Definition |
|---|---|
| ARJA | Alberta Restorative Justice Association |
| ARJIS | Automated Regional Justice Information Systems |
| ARL | Automatic Renewal Law |
| ARLE | Automated Red Light Enforcement |
| ARLJ | Administrative Rules for Courts of Limited Jurisdiction |
| ARLO | Animal Rights Law Office |
| ARLS | Addiction Recovery Legal Services |
| ARMS | Annual Registration Management Service |
| ARMS | Arson Reporting Management System |
| ARMT | assault rifle multi tool |
| ARPL | Anti-Referral Payments Law |
| ARRA | American Reinvestment and Recovery Act |
| ARS | Absolve Repentant Sinner |
| ARS | Arizona Revised Statute |
| ARS | Arizona Revised Statutes |
| ARSD | Administrative Rules of South Dakota |
| ART | Aggression Replacement Training |
| ART | Alternative Risk Transfer |
| AS | Alaska Statute |
| ASAIL | Analysis of Semantic Information in Legal Texts |