Articles for a fair entered under this part shall not be removed from the fair premises, or otherwise disposed of, except in accordance with this subpart. The fair operator shall be liable for the payment of any unpaid duty, tax, fees, charges, or exaction due on any article removed from the fair premises or disposed of contrary to this subpart, including any article lost or stolen regardless of the fair operator's fault. The payment shall be made on the Center director's demand to CBP, either at the port of entry or electronically.