AMTK
| Amtrak | 449 |
AMTL
| Agence métropolitaine de transport | 7 |
CDOT
| Conneticut Department of Transportation | 4 |
CDTX
| California DOT | 1 |
CFR
| CFR | 2 |
GMRC
| Green Mountain RR | 2 |
LI
| Long Island Rail Road Company | 3 |
MARC
| Maryland Transit Administration | 12 |
MBTA
| Massachusetts Bay Transit Authority | 8 |
METX
| METRA | 2 |
MNCR
| Metro North Commuter Railway | 21 |
MNCW
| Metro-North Commuter Railroad | 1 |
NJT
| New Jersey Transit | 694 |
NMRX
| New Mexico Department Of Transportation | 1 |
SDRX
| Central Puget Sound Regional Transit Authority | 2 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 78 |
TRCX
| Florida Tri-Rail | 18 |
TRWX
| Trinity Railway Express | 8 |
UTAX
| Utah Frontrunner | 3 |
VRE
| Virginia Railway Express | 7 |
WCRL
| West Chester Railroad Company | 1 |