AMTK
| Amtrak | 91 |
CDOT
| Conneticut Department of Transportation | 1 |
MARC
| Maryland Transit Administration | 10 |
MBTA
| Massachusetts Bay Transit Authority | 898 |
MCTA
| Minnesota Central Railroad Company | 11 |
ME
| Morristown & Erie Railroad | 4 |
MEC
| Maine Central | 1 |
MNCR
| Metro North Commuter Railway | 1 |
NJT
| New Jersey Transit | 6 |
PRR
| Pennsylvania Railroad | 1 |
ST
| Springfield Terminal | 1 |
VRE
| Virginia Railway Express | 10 |