| Central Maryland Rail System, Inc. | home |
| AC4400 | C44-9W | GP9/B | GP35 | GP38-2/BU | GP40-2 | SD9 | SD40-2 | SD60M | SD70M | SD90MAC | Non-Traditional |
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| GP9/B |
For current paint schemes, please visit MDHeritage.
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For current paint schemes, please visit MDHeritage.
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| Unit No. | Color Scheme |
| 200 | Black Widow |
| 201 (B-Unit) | Black Widow |
| 202 | Black Widow |
| 203 (B-Unit) | Black Widow |