Acronym |
Definition |
| ARC | Alien Residents Card |
| ARC | Appalachian Regional Committee |
| ARCENT | United States Army Central |
| ARCTIC | Arctic Research Commision |
| ARD | Annual Review Database |
| ARDA | Appalachian Regional Development Act |
| ARDC | Attorney Registration & Disciplinary Commission |
| ARF | Area Resource File |
| ARIMA | Auto Regressive Integrated Moving Average |
| ARISE | Arts Residency Interventions in Special Education |
| ARL | Army Research Laboratory |
| ARM | Atmospheric Radiation Measurement |
| ARMS | Acquisition Reform Model Sharing |
| ARNAV | American Reserve Naval Aviation Volunteers |
| ARNET | Acquisition Reform Network |
| ARO | Announcement of Research Opportunity |
| AROTC | Army Reserve Officer Training Corps |
| ARP | American Rescue Plan |
| ARPA | Advanced Research Projects Agency |
| ARPA | Archaeological Resources Protection Act |
| ARRA | American Recovery and Reinvestment Act |
| ARRW | Air-Launched Repid Weapon |
| ARS | Agricultural Research Service |
| ARSR | Air Route Surveillance Radar |
| ARTCC | Air Route Traffic Control Centre |
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