(1)
Class I, II, and III railroads; railroad carrier— The terms class I railroad, class II railroad, class III railroad, and “railroad carrier” have the meanings given such terms in
section 20102 of title 49, United States Code.
(2)
Lead locomotive— The term lead locomotive means the first locomotive proceeding in the direction of movement.
(3)
Locomotive cab— The term locomotive cab means the compartment or space on board a locomotive where the control stand is located and which is normally occupied by the engineer when the locomotive is operated.
(4)
Main line— The term main line means a segment or route of railroad tracks over which 5,000,000 or more gross tons of railroad traffic is transported annually.
(5)
Remote control locomotive— The term remote control locomotive—
(A)
means a remote control locomotive that, through use of a radio link, can be operated by a person not physically within the locomotive cab; and
(B)
does not include a locomotive or group of locomotives remotely controlled from the lead locomotive of a train, as in a distributed power arrangement.
(6)
Remote control operator— The term “remote control operator” means a locomotive engineer, as defined in section 240.7 of title 49, Code of Federal Regulations, certified by a railroad to operate remote control locomotives pursuant to section 240.107 of title 49, Code of Federal Regulations.
(7)
Train— The term train means 1 or more locomotives coupled with or without cars, except during switching service.
(8)
Yard— The term yard means a system of tracks, not including main tracks and sidings, used for classifying cars, making-up and inspecting trains, or storing cars and equipment.