(a) The Commissioner of Revenue Services may license the owner or operator of marine fuel docks to purchase dyed diesel fuel, as defined in subsection (d) of § 12-487, that is exempt under subparagraph (O) of subdivision (3) of subsection (a) of § 12-458, from distributors and to sell such nontaxable fuel, provided such owner or operator can properly control such sale, through meters or pumps or other dispensing devices, directly into the fuel tank of any vessel or vessel motor. Such owner or operator shall keep and maintain proper accounting records of all purchases from the distributor and sales invoices to the purchaser, showing the signature of the purchaser and the vessel registration number of the vessel serviced, and the inventory on hand on the first day of each month. Such records shall be preserved for a period of at least three years and shall be audited by the commissioner at regular intervals. Any discrepancies found to exist for which a satisfactory explanation cannot be submitted shall be subject to the tax imposed by § 12-458, against such owner or operator. The license to sell dyed diesel fuel under this section may be revoked if the licensee fails to properly control and safeguard the state from any diversion to uses other than for marine purposes.

(b) Each distributor of dyed diesel fuel shall, on or before the twenty-fifth of each month, render a report to the commissioner. Such report shall state the number of gallons of dyed diesel fuel sold or used by such distributor during the preceding calendar month, on forms to be furnished by the commissioner, and shall contain such additional information as the commissioner prescribes.