AMTK
| Amtrak | 6 |
DLMX
| Daylight Locomotives and Machine Works Incorporated | 1 |
PRPX
| Pacific Railroad Preservation Assoc | 1 |
RFRX
| Rick Franklin Corporation | 1 |
SP
| Southern Pacific | 1 |
UPMW
| UPMW | 3 |
UPP
| Union Pacific Passenger | 2 |
WDTX
| Washington Department of Transportation | 1 |