| BE | Baggage Express Car constructed and equipped for passenger train service, with side doors to load luggage, baggage etc. with or without windows and end doors. |
|---|---|
| BEM | Baggage Express Messenger Car constructed and equipped for passenger train service, with side doors to load luggage, baggage etc. with or without windows and end doors. Equipped with a safety rod, desk and pigeon holes, stationary safe if required, drinking water, lavatory and toilet, wardrobe withcoat hangers and shelf. Brake valve or cord and signal valve or cord. All such cars to have a 6 inch, five pointed star on exterior of car. |
| BH | Horse Car constructed and equipped for passenger train service for transportations of fine stock, with or without stalls moveable or stationary and with or without space for carriage or horse equipment. |
| BM | Milk Car constructed and equipped for passenger train service used to transport milk in cans or bottles. Not refrigerated. |
| BMR | Milk Car constructed and equipped for passenger train service used to transport milk in cans or bottles. Insulated having ice bunkers or ice boxes. |
| BMT | Liquid Transport Car constructed and equipped for passenger train service used to transport liquids. Equipped with one or more insulated tanks and with or without pumps and compressors. Not refrigerated. |
| BR | Refrigerator Express Car constructed and equipped for passenger train service, having ice bunkers or ice boxes. Designed to use chunk ice with ventilation and suitable for carrying perishables. |
| BX | Box Express Car constructed and equipped for passenger train service, having side loading doors and with or without end doors or windows. |