Minn. Stat. § 360.57: FILING SWORN STATEMENT BY MANUFACTURER.

Every manufacturer of an aircraft sold or offered for sale within this state, either by the manufacturer, distributor, dealer, or any other person, shall, on or before the first day in August of each year, file in the office of the commissioner a sworn statement showing the various models manufactured by the manufacturer and the retail list price of each model being manufactured August 1 of that year, and shall also file with the commissioner, in such form as manufacturers usually use for advertising, complete specifications of the construction of each model that has been manufactured by the manufacturer. Upon each change in such price and upon the manufacture of each new model thereafter such manufacturer shall in like manner file a new statement setting forth such change.