|
| 558 14 | CAR DUMPER SYSTEM INCLUDING ELECTRONICS AND CONTROLS |
| 558 20 | FREIGHT CARS |
| 558 30 | LOCOMOTIVES, DIESEL |
| 558 35 | LOCOMOTIVES, ELECTRIC |
| 558 37 | MONORAIL SYSTEM, INCLUDING PARTS AND ACCESSORIES |
| 558 40 | PASSENGER CARS, LIGHT, SELF-PROPELLED |
| 558 45 | PASSENGER CARS, LIGHT, NON-POWERED |
| 558 50 | PASSENGER CARS, HEAVY, SELF-PROPELLED |
| 558 55 | PASSENGER CARS, HEAVY, NON-POWERED |
| 558 70 | SPECIALIZED VEHICLES, SELF-PROPELLED, RAIL CAR MOVERS, ETC. |
| 558 75 | SPECIALIZED VEHICLES, NON-POWERED |
| 558 85 | TROLLEYS, INCLUDING PARTS AND ACCESSORIES |