| Abbreviation | Definition |
|---|---|
| ACMS | Aquaculture Catchment Management Services |
| ACNEM | Australasian College of Nutritional and Environmental Medicine |
| ACOEM | American College of Occupational Environmental Medicine |
| ACORE | American Council On Renewable Energy |
| ACORN | Active Children Openly Representing Nature |
| ACOT | Avoided Cost of Transmission |
| ACP | Allergen Control Program |
| ACP | Area Code of Planting |
| ACPG | Automatic Cutter Path Generation |
| ACR | Agricultural Container Recycling |
| ACR | Alaska Climate Research |
| ACRC | Ag Container Recycling Council |
| ACRC | Agricultural Container Recycling Council |
| ACRC | Alaskan Climate Research Center |
| ACRII | Accelerating Climate Resilient Infrastructure Investment |
| ACRRA | Agricultural Chemical Response and Reimbursement Account |
| ACRU | Asbestos Contractor's Registration Unit |
| ACTS | Advanced Catalytic Technologies for Sustainability |
| ACV | Aqueducts and Canal Viaducts |
| ACVG | Alternate Current Voltage Gradient |