Miss. Code Ann. § 75-55-19: Miss. Code Ann. § 75-55-19

No person shall use any scales, measure or measuring device in the handling or sale of petroleum products, unless the same is true and accurate; and the standards of weights and measures shall be those most recently adopted by the Division of Institute of Standards and Technology of the United States Department of Commerce, except that in no event shall gasoline, alcohol blended fuel, diesel fuel, or kerosene be dispensed for sale through visible or bowl pumps with outside indicators, and in no event shall any such bowl be drained by any device except through the regular dispensing hose.