Missouri Revised Statutes Title XXVI. Trade and Commerce § 414.042. Fuels, offered for sale, testing required upon request of director--requested samples, director to inspect and test

1. When offered for sale or when used in this state, kerosene, diesel fuel, heating oil, aviation turbine fuel, gasoline, gasoline-alcohol blends, and other motor fuels shall be tested and meet the requirements as provided in this chapter. Every dealer, distributor, producer or compounder of such oil or fuel shall immediately upon request make available to the director a sample of gasoline, gasoline-alcohol blends, diesel fuel, heating oil, kerosene, aviation turbine fuel, and other motor fuels at his own expense. The director shall inspect and test all requested samples for compliance with the provisions of this chapter.

2. The director shall not be required to make a complete analysis of all samples tested pursuant to subsection 1 of this section.

3. If it is demonstrated that some impurity or imperfection exists in the sampled product to render it unfit for its intended purposes, the director may reject the product for such purposes by issuing a stop-sale order.