Missouri Revised Statutes Title XXVI. Trade and Commerce § 414.073. Tank wagons, wholesale or retail sales to be equipped with meters--inspection, when--condemned meters, how marked

1. Each tank wagon used in the wholesale or retail marketing of gasoline, gasoline-alcohol blend, kerosene, heating oil, diesel fuel, and aviation turbine fuel shall be equipped with meters or other measuring devices for the measurement of the product in terms of gallons or liters and shall not be equipped with a bypass around such meters.

2. The director shall at least once each year test the measuring devices on tank wagons used in the retail or wholesale delivery of motor fuel, aviation turbine fuel, heating oil, diesel fuel, gasoline, gasoline-alcohol blend, or kerosene. When such devices are found to be inaccurate, he shall order the correction, removal or discontinuance of same.

3. Test procedures, specifications, tolerances, and technical requirements shall be governed by the National Bureau of Standards, Handbook 44, and supplements thereto.

4. The director shall condemn all meters which do not meet the requirements contained in National Bureau of Standards Handbook 44, vehicle tank meter section, or its successor publication.

5. No meter which has been condemned shall be used for commercial purposes. All condemned meters shall be conspicuously marked “inaccurate”.