Code of Federal Regulations Title 49. Transportation § 49.1244.6 Retention of files

(a) Subject railroads shall retain the underlying hard copy waybills or facsimiles capable of producing legible copies, which shall be complete including inbound references for transit waybills, for a minimum period of four years.

(b) This file of retained waybills shall be maintained in such a manner that railroads may readily retrieve waybill copies using the waybill identifier code as shown on the submitted waybill record.