Iowa Code § 327D.89: Complaint of violation.

When a person complains to the department that the rate charged or published by a railway corporation, or the maximum rate fixed by law, is unreasonably high or discriminating, the department may investigate the matter, and request the department of inspections, appeals, and licensing to conduct a hearing. The department of inspections, appeals, and licensing shall give the parties notice of the time and place of the hearing.