Ark. Code Ann. § 23-4-635: Changes in rates by common carriers

(a) No change shall be made in the rates, fares, and charges or joint rates, fares, and charges that have been filed with the Arkansas Department of Transportation and published by any common carrier in compliance with the requirements of § 23-4-110 except after thirty (30) days' notice to the department and to the public.

(b) The notice shall plainly state the changes proposed to be made in the schedule then in force and the time when the changed rates, fares, or charges will go into effect.

(c) The proposed changes shall be shown by printing a new schedule or shall be plainly indicated upon the schedules in force at the time and kept open to public inspection.

(d) The department, in its discretion and for good cause shown, may allow changes upon less notice than specified in this section or modify the requirements of this section in respect to publishing, posting, and filing of tariffs, either in particular instances or by general order applicable to special or peculiar circumstances or conditions.

(e) The department is authorized to make suitable rules and regulations for the simplification of schedules of rates, fares, charges, and classifications and to permit, in the rules and regulations, the filing of an amendment of or change in any rate, fare, charge, or classification without filing a complete schedule covering rates, fares, charges, or classifications not changed, if, in its judgment, it is not inconsistent with the public interest.