Section 78.66 - Records to be kept by licensees(1) Every general aviation fuel licensee and licensee under s. 78.09 or 78.47 shall keep a record of all purchases, receipts, sales, distribution and consumption of each kind or trade name of motor vehicle fuel, crude petroleum and general aviation fuel and each alternate fuel.(2) Every licensee shall keep true and accurate records of all stocks of motor vehicle fuel, crude petroleum and general aviation fuel and each alternate fuel on hand. Every licensee shall take a physical inventory of those fuels on hand at each licensed location at the close of business on the last day of every month.(3) Every licensee shall retain the records of the inventory required by sub. (2) and all other records required by this section available for the inspection by the department, and upon demand of the department, any licensee shall furnish a statement under oath reflecting the contents of any record to be kept under this section.(4) The department may require any person who keeps records in machine-readable form for federal fuel tax purposes to keep those records in the same form for purposes of the taxes under this chapter.1981 c. 20; 1991 a. 39; 1993 a. 16; 1997 a. 27.