AMTK
| Amtrak | 48 |
ATAX
| Arizona Transit Assembly | 2 |
BMRG
| Blue Mountain & Reading | 2 |
CDOT
| Conneticut Department of Transportation | 1 |
CMRR
| Catskill Mountain Scenic | 2 |
CN
| Canadian National Railways | 3 |
CNJ
| Central Rail Road of New Jersey | 1 |
CSX
| CSX Railroad | 5 |
EV
| Everett Railroad | 2 |
GMRC
| Green Mountain RR | 2 |
HRS
| Holidaysburg and Roaring Spring Railroad Company | 1 |
LI
| Long Island Rail Road Company | 2 |
MARC
| Maryland Transit Administration | 2 |
MBTA
| Massachusetts Bay Transit Authority | 3 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MNCR
| Metro North Commuter Railway | 1 |
MPA
| Maryland and Pennsylvania Railroad | 2 |
NHIR
| New Hope & Ivyland | 11 |
NJT
| New Jersey Transit | 72 |
NS
| Norfolk Southern | 1 |
NYSW
| New York Susquehanna & Western | 1 |
PPCX
| AAPRCO Register Private Cars | 1 |
PRR
| Pennsylvania Railroad | 3 |
RBBX
| Ringling Bros. and Barnum and Bailey | 5 |
RBMN
| Reading Blue Mountain & Northern | 6 |
RDG
| Reading Railroad | 1 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 18 |
SRC
| Strasburg Railroad | 5 |
UPP
| Union Pacific Passenger | 7 |