| Amtrak | National Railroad Passenger Corporation |
| CSX | CSX Transportation |
| DC2RVA | Washington, D.C. to Richmond Southeast High Speed Rail Project |
| Draft EIS | Draft Environmental Impact Statement |
| DRPT | Virginia Department of Rail and Public Transportation |
| EIS | Environmental Impact Statement |
| Final EIS | Final Environmental Impact Statement |
| FHWA | Federal Highway Administration |
| FRA | Federal Railroad Administration |
| FTA | Federal Transit Administration |
| HSR | High-Speed Rail |
| NEC | Northeast Corridor |
| NEPA | National Environmental Policy Act |
| NS | Norfolk Southern Railroad |
| PE | Preliminary Engineering |
| ROD | Record of Decision |
| ROW | Right-of-Way |
| SDP | Service Development Plan |
| SEHSR | Southeast High Speed Rail |
| VDOT | Virginia Department of Transportation |
| VRE | Virginia Railway Express |