(a) General. Every person intending to file claim for drawback on eligible articles brought into the United States from the Virgin Islands shall keep permanent records of the data elements required by this section. Such records shall be maintained at the business premises for which the claim is filed and shall be available for inspection by any appropriate TTB officer during business hours.

(b) Details of records. Each person intending to claim drawback on eligible articles brought into the United States shall maintain permanent records showing the following data:

(c) Form of record. No particular form of record is prescribed, but the data required to be shown shall be readily ascertainable from the records kept by the drawback claimant.

(d) Evidence of taxpayment of distilled spirits. Evidence of taxpayment of eligible articles (such as Customs Forms 7501 and 7505 receipted to indicate payment of tax) shall be maintained as evidence of taxpayment to support information required to be furnished in the supporting data filed with a claim.

(e) Retention of records. Each drawback claimant shall retain for a period of not less than three years all records required by this subpart, all commercial invoices or shipping documents, and all bills of lading received evidencing receipt and tax determination of the spirits. In addition, a copy of each approved formula returned to the manufacturer of eligible articles shall be retained for not less than three years from the date he files his last claim for drawback under the formula. The records, forms, and formulas shall be readily available during regular business hours for examination by appropriate TTB officers.