| Abbreviation | Definition |
|---|---|
| ASE | Architecturally Significant Equipment |
| ASHIQ | Action Society Home Improvement Questions |
| ASHRAE | American Society of Heating, Refrigerating and Air-Conditioning Engineers |
| ASIR | adaptive statistical iterative reconstruction |
| ASPH | Asphalt |
| ASW | ASEAN Single Window |
| ATBL | Asphalt Treatment Base Layers |
| ATCM | Architectural Technology and Construction Management |
| ATCS | American Trademark Construction Services |
| ATM | Alternative Test Method |
| AWC | All Wood Construction |
| AWCI | Association of the Wall and Ceiling Industry |
| AWG | American Wire Gage |
| AWI | Architectural Woodwork Institute |
| AWIC | Advancing Women in Construction |
| AWMAC | Architectural Woodwork Manufacturers Association of Canada |
| AWPA | American Wood Protection Association |
| AWS | American Welding Society |
| AWWA | American Water Works Association |
| BA | Barrier Arm |