ACWR
| Aberdeen, Carolina & Western | 1 |
AMTK
| Amtrak | 1 |
ATSF
| Atchison Topeka & Santa Fe | 5 |
BO
| Baltimore & Ohio | 2 |
CBQ
| Chicago Burlington & Quincy | 1 |
CNW
| Chicago & Northwestern | 2 |
CO
| Chesapeake & Ohio | 2 |
DOTX
| USDOT/Federal Railroad Administration | 1 |
GN
| Great Northern | 1 |
PPCX
| AAPRCO Register Private Cars | 4 |
RFP
| Richmond Fredericksburg & Potomac | 2 |
SCL
| Seaboard Coast Line | 2 |
SOU
| Southern | 2 |
WAMX
| Webb Asset Management | 1 |