| Abbreviation | Definition |
|---|---|
| A | Amortization (Finance) |
| AACA | Asian American Contractors Association |
| AAODC | American Association of Oilwell Drilling Contractors |
| ABC | Associated Builders and Contractors |
| ACAA | Artisan Contractors Association of America |
| ACAF | Asphalt Contractors Association of Florida |
| ACAP | As Close As Possible |
| ACCO | Air Conditioning Contractors of Ohio |
| ACD | Approved Contractor's Drawings |
| ACEA | Austin Contractors Engineers Association |
| ACER | Annual Contractor Evaluation Report |
| ACIG | American Contractors Insurance Group |
| ACLC | Academy of Contractor Licensing of California |
| ACNM | Associated Contractors of New Mexico |
| ACOM | AHCCCS Contractor Operations Manual |
| ACOM | AHCCCS Contractors Operations Manual |
| ACP | Application for Certificates of Payment |
| ACRU | Asbestos Contractors Registration Unit |
| ACRU | Asbestos Contractors' Registration Unit |
| ADC | Association of Diving Contractors |