27 C.F.R. § 28.21
Liquors may be withdrawn without payment of tax for lading, and liquors on which the tax has been paid or determined may be laden with benefit of drawback of tax, subject to this part, for use on vessels and aircraft as follows:
(f) Aircraft registered in any foreign country and actually engaged in foreign trade or trade between the United States and any of its possessions, or between Hawaii and any other part of the United States or between Alaska and any other part of the United States, where trade by foreign aircraft is permitted, and where the Secretary of the Treasury shall have been advised by the Secretary of Commerce that he or she has found such foreign country allows, or will allow, substantially reciprocal privileges in respect to aircraft registered in the United States.
(46 Stat. 690, as amended; 72 Stat. 1334, 1335, 1336, 1362, 1380; 19 U.S.C. 1309, 26 U.S.C. 5053, 5055, 5062, 5214, 5362)
[T.D. 6588, 27 FR 773, Jan. 26, 1962. Redesignated at 40 FR 16835, Apr. 15, 1975 and amended by T.D. TTB-8, 69 FR 3831, Jan. 27, 2004; T.D. TTB-196, 89 FR 87945, Nov. 6, 2024]