S.C. Code Ann. § 12-28-1592 — Tank wagons must have IFTA registration; exception

No person may operate a tank wagon in this State unless that tank wagon first is registered under IFTA for use on the highways of this State and has displayed on the vehicle an IFTA sticker designating the vehicle for use in this State. However, a vehicle licensed in this State and exempt from the IFTA regulations is exempt from this requirement.