§ 26.165 Certificate of effective tax rate computation.

(a) Where distilled spirits of Puerto Rican manufacture which contain eligible wine or eligible flavors are to be tax determined for shipment to the United States or are to be shipped to the United States without payment of tax for transfer from customs custody to the bonded premises of a distilled spirits plant, the consignor shall prepare a certificate of effective tax rate computation showing the: (1) The serial number of TTB Form 5110.31 or 5110.51; (2) Elements necessary to compute the effective tax rate in accordance with § 26.79a as follows— (i) Proof gallons of distilled spirits (exclusive of distilled spirits derived from eligible flavors); (ii) Wine gallons of each eligible wine and the percentage of alcohol by volume of each; and (iii) Proof gallons of distilled spirits derived from each eligible flavor; (3) Date of the statement of eligibility for each eligible flavor (see § 26.50a). (4) Effective tax rate applied to the product. (5) Signature and title of the consignor. (b) If the spirits are tax determined for shipment to the United States, the proprietor shall retain the certificate for a period of not less than three years after the last tax determination to which the certificate is applicable. If the spirits are shipped to the United States for transfer from customs custody to the bonded premises of a distilled spirits plant, the proprietor shall forward the original to the consignee distilled spirits plant in the United States and retain a copy for his files.