Ind. Code § 8-9-5-2

Sec. 2. If any person shall act or serve as a conductor on a railroad train upon any railroad in the state of Indiana which is more than twenty-five (25) miles in length without, for one (1) year prior thereto, having worked or served as a brakeman or conductor on a railroad train, he commits a Class C infraction, and each day he so acts or serves shall constitute a separate offense: Provided, That any person who for part of said period of one (1) year has worked or served as a brakeman on a railroad train and for the remainder of such period has worked or served as a conductor on such a train shall be deemed to possess the qualifications required by this chapter to serve or act as such a conductor.