BBCX
| ABB Power Generation Incorporated | 4 |
BO
| Baltimore & Ohio | 1 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 70 |
CTN
| Canton Railroad Company | 1 |
MKT
| Missouri-Kansas-Texas | 8 |
SLCC
| St. Louis Car Company | 2 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 3 |
WAB
| Wabash | 8 |