(a) The purpose of this part is to ensure that only those persons who meet minimum Federal safety standards serve as certified signal employees, to reduce the rate and number of accidents and incidents, and to improve railroad safety.

(b) This part prescribes minimum Federal safety standards for the eligibility, training, testing, certification and monitoring of all signal employees to whom it applies. This part does not restrict a railroad from adopting and enforcing additional or more stringent requirements consistent with this part.

(c) The signal employee certification requirements prescribed in this part apply to any person who meets the definition of signal employee contained in § 246.7, regardless of the fact that the person may have a job classification title other than that of signal employee.