Ark. Code Ann. § 26-26-1705: Valuation and assessment

(a) The Tax Division of the Arkansas Public Service Commission, from the statements required by §§ 26-26-1702 and 26-26-1703 and other information it may obtain, shall ascertain and fix, as the basis for assessment, a uniform daily average travel of cars of each particular class and the valuation per car of each particular class and, accordingly, the number of cars required to make the total mileage traveled in this state within the year by the cars of each class of each private car company, and the assessed valuation of all cars of each car company.

(b) When the basis for assessment is determined, written notice shall be forwarded by first-class mail to each car company having filed the report required in § 26-26-1702 , and each company, if dissatisfied with the basis for assessment so fixed, may file written petition for review within ten (10) days from date of the notice.