49 CFR § 212.219
Apprentice MP&E inspector
November 18, 2020
(a) The apprentice MP&E inspector must be enrolled in a program of training prescribed by the Associate Administrator leading to qualification as an MP&E inspector. The apprentice may not participate in investigative and surveillance activities, except as an assistant to a qualified State or FRA inspector while accompanying that qualified inspector.
(b) An apprentice MP&E inspector shall demonstrate basic knowledge of railroad equipment and air brake inspection, testing and maintenance, prior to being enrolled in the program.