Ark. Code Ann. § 26-55-702: Liability for tax

Any person, firm, or corporation that operates on the highways of this state a motor carrier, bus, truck, transport, or other motor vehicle, having a gross loaded weight of twenty-six thousand one pounds (26,001 lbs.) or more and having motor fuel commonly or commercially sold and used as gasoline as defined in § 26-55-202 in its fuel tank or tanks upon which the Arkansas motor fuel tax has not been paid is liable for a tax at the rate per gallon under § 26-55-205 on the gasoline used or consumed in the State of Arkansas, subject to § 26-55-710 .