Section 212.233 - Apprentice highway-rail grade crossing inspector(a) An apprentice highway-rail grade crossing inspector shall be enrolled in a program of training prescribed by the Associate Administrator for Safety leading to qualification as a highway-rail grade crossing inspector. The apprentice inspector 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) Prior to being enrolled in the program the apprentice inspector shall demonstrate: (1) Working basic knowledge of electricity;(2) The ability to use electrical test equipment in direct current and alternating current circuits; and(3) A basic knowledge of highway-rail grade crossing inspection and maintenance methods and procedures.