(a) Except for operation in its yards or terminals, and except where a train is being moved as an actual movement into or from another state not having a requirement of at least two persons controlling a locomotive as is required in this state pursuant to this section, no railroad may permit or require any crew-controlled locomotive power unit, including helper units, that is not attached to a train to be operated by a crew of fewer than two persons. At least one crew member shall be a federal railroad administration certified and licensed locomotive engineer within the meaning of applicable federal statutes and regulations. The second crew member shall be selected from either train service or engine service personnel: Provided, That the selection does not violate federal statutes or regulations or local collective bargaining agreements.

(b) As used in this section:

(1) "Crew-controlled locomotive" means a locomotive power unit, single or in multiple, which is operated by on-board personnel, but does not include units controlled by radio or other remote control by a crew on another locomotive power unit.

(2) "Helper unit" means a locomotive power unit placed at some point in a train for the purpose of supplementing the power available from the locomotive power unit controlling a train.

(c) It is unlawful to institute any disciplinary action or other adverse administrative action against any person who reports a violation of or acts to enforce the provisions of this section or this article. The person's remedies under this section are in addition to any other remedies that may be otherwise available.

(d) The Public Service Commission shall, on or before July 1, 1993, promulgate rules to implement the provisions of this section.