| Abbreviation | Definition |
|---|---|
| RDLV | Rapid Deployment Logistical Vehicle |
| RDM | Reservation Data Maintenance |
| RDMC | Regional Director of Motor Carriers |
| RDP | Route Development Plan |
| RDSIM | Runway Delay Simulation Model |
| RDTE | Research, Development, Test, and Evaluation |
| RDTP | Roadside Data Technology Project |
| RDU | Raleigh - Durham International Airport |
| RDV | Rapid Deployment Vehicles |
| RDV | Remote Drive Vehicle |
| RE | Rear Engine |
| RE | Rotary Engine |
| REACT | Reusable Energy Absorbing Crash Terminal |
| REAS | Regional Elite Airline Services |
| REBCO | Russian Export Blend Crude Oil |
| REC | Rear End Collision |
| REC | Roadway Encroachment Or Closure |
| RECS | Residential Energy Consumption Survey |
| REEV | Range Extended Electric Vehicles |
| REEV | Range Extender Electric Vehicle |