Switcher Locomotive
Switcher Locomotive means any locomotive designated as a switcher by the builder or reported to the ICC as a switcher by the operator-owning-railroad and including, but not limited to, all locomotives of the builder/model designations listed in Appendix A to this subpart.
Source
40 CFR § 201.1
Scoping language
As used in this part, all terms not defined herein shall have the meaning given them in the Act: