| Abbreviation | Definition |
|---|---|
| ARRC | Appalachian Regional Recycling Consortium |
| ARRC | Aylesbury Recycling And Reuse Centre |
| ASAC | Applied Sciences Advisory Committee |
| ASAP | Arcadia for Saving And Preserving |
| ASBB | Assam State Biodiversity Board |
| ASEC | Action Sports Environmental Coalition |
| ASED | Association for Social and Environmental Development |
| ASER | Annual Site Environmental Reports |
| ASESP | African Social and Environmental Studies Programme |
| ASESP | Arizona Sonora Environmental Strategic Plan |
| ASGM | Artisanal and Small-scale Gold Mining |
| ASP | Air Separation Plant |
| ASPCB | Assam State Pollution Control Board |
| ASR | Aquifer Storage and Recovery |
| ASR | Auto Shredder Residue |
| ASRC | Advanced Studies and Research Center |
| ASRV | Among Site Rate Variation |
| ASSET | Accredited Safety Skills and Environmental Training |
| AST | Above-ground Storage Tank |
| ASWM | Alternative Solid Waste Management |