27 CFR 26.87: Evidence of taxpayment.

Where, under the provisions of § 26.86, a person has made application to the Secretary for authority to ship distilled spirits of Puerto Rican manufacture to the United States in containers having a capacity of more than one gallon, they shall, at the same time, submit sworn evidence to the Secretary that the distilled spirits tax has been paid as provided in § 26.81 or deferred as provided in § 26.80, or they shall submit application, TTB Form 5110.51, for permit to pay such taxes, as provided in § 26.78. When satisfied that the shipper has complied with all provisions of this part relating to the payment of taxes on such distilled spirits, the Secretary or their delegate, shall note his approval on both copies of the sworn application, and return one copy to the shipper. On receipt of the approved application, the shipper shall submit application for permit to ship, TTB Form 5170.7, as prescribed in §§ 26.114 through 26.116.