AMTK
| Amtrak | 5 |
CSX
| CSX Railroad | 1 |
LN
| Louisville & Nashville | 3 |
MARC
| Maryland Transit Administration | 1 |
METX
| METRA | 7 |
MRLX
| Mid America Rail Car Leasing | 1 |
NJT
| New Jersey Transit | 31 |
NS
| Norfolk Southern | 2 |
RBBX
| Ringling Bros. and Barnum and Bailey | 1 |
UP
| Union Pacific Railroad Company | 1 |
VRE
| Virginia Railway Express | 2 |