49 CFR § 212.211 - Apprentice signal and train control inspector.
(a) The apprentice signal and train control inspector must be enrolled in a program of training prescribed by the Associate Administrator leading to qualification as a signal and train control inspector. The apprentice inspector may not participate in the investigative and surveillance activities, except as an assistant to a qualified State or FRA inspector while accompanying that qualified inspector.
(b) Prior to being enrolled in the program the apprentice inspector shall demonstrate:
(1) Working knowledge of basic electricity and the ability to use electrical test equipment in direct current and alternating current circuits; and
(2) A basic knowledge of signal and train control inspection and maintenance methods and procedures.
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