Every person receiving a basic permit under the provisions of this part must maintain the permit at the place of business covered by the permit and make it available upon the request of the appropriate TTB officer. Every person required to obtain a basic permit as an importer under § 1.20 must, when importing distilled spirits, wine, or malt beverages under that permit and filing TTB data electronically, file the number of the permit with U.S. Customs and Border Protection (CBP) along with the filing of the customs entry. Regardless of the method of filing, every importer must make the permit available upon request by the appropriate TTB officer or a customs officer.