Registration provisions

(a) Any person who registered a brand name for a motor fuel and fails to sell or deliver or discontinues selling or delivering the registered product shall notify the commissioner within 60 days after registration or last invoice or delivery ticket. Failure to notify shall automatically terminate and cancel the registration of the brand name and the quality specifications. (b) The commissioner may establish and maintain a normal prevailing range of quality specifications of motor fuels for similar or customary classifications, grades, or designations of motor fuels intended for the same use or application. For automotive gasoline and gasoline-oxygenate blends, the minimum octane index shall be 87, but for fuels designated as "Economy," the minimum octane index shall be 86. For those unleaded fuels designated as "Mid-Grade" or "Premium" or by a word or term of equivalent meaning, the minimum octane index shall be 89 and 91 respectively.