| Rank | Abbreviation | Meaning |
|---|
| ***** | RMAC | Return Material Authorization Code
| |
| **** | RMAC | Rivers Management Advisory Committee
| |
| **** | RMAC | Regional Maritime Awareness Capability
| |
| **** | RMAC | Radar Minimum Altitude Chart
| |
| ** | RMAC | Responding to Missing and Abducted Children
| |
| ** | RMAC | Regional Mine Action Center
| |
| * | RMAC | Risk Management and Audit Committee
| |
| * | RMAC | Risk Monitoring and Audit Committee
| |
| * | RMAC | Rubber Modified Asphalt Concrete
| |
| * | RMAC | Radiological Monitoring and Assessment Center
| |
| * | RMAC | Returned Merchandise Authorization Code
| |
| * | RMAC | Repeating Multiply and Accumulate
| |
| * | RMAC | Resource Management Advisory Committee
| |
| * | RMAC | Rockhampton Model Aero Club
| |
| * | RMAC | Rocky Mountain Angling Club
| |
| * | RMAC | Resource Management Advisory Council
| |
| * | RMAC | Resolved Motion Acceleration Control
| |
| * | RMAC | Rand Mutual Assurance Company
| |
| * | RMAC | Remote Monitoring and Control
| |
| * | RMAC | Retail Music Association of Canada
| |
| * | RMAC | Repeater Medium Access Control
| |
| * | RMAC | Rocky Mountain Acquisition Corp
| |
| * | RMAC | Recommended Maximum Acceptable Concentration
| |
| * | RMAC | Remote Maintenance Access Control
| |
| * | RMAC | Risk Management Advisory Committee
| |