(a) In general. Each export warehouse proprietor must keep in the warehouse complete and concise records that show the:

(b) Other records; form and retention. In addition to the records specified in paragraph (a) of this section, the export warehouse proprietor must retain a copy of each TTB F 5200.14 from a manufacturer, another export warehouse proprietor, or a customs warehouse proprietor, from whom tobacco products or cigarette papers or tubes were received, as well as a copy of each TTB F 5200.14 covering the tobacco products and cigarette papers and tubes removed from the warehouse. The entries for each day in the records maintained under this section must be made by the close of the business day following the day on which the transactions occur. No particular form of records is prescribed, but the information required must be readily ascertainable. The copies of TTB F 5200.14 and other records must be retained for 3 years following the close of the calendar year in which the shipments were received or removed and must be made available for inspection by any appropriate TTB officer upon request.