Provided, That such exemption shall be effective only to the extent that any amendments or revisions of the regulations issued by the Governor of the Virgin Islands, or his duly authorized agents, are concurred in by the Secretary of the Treasury of the United States or his delegate. Otherwise, all provisions of law as provided in 26 U.S.C. 5314(b) , and the provisions of this chapter in respect of the production, bonded warehousing, denaturation, and withdrawal from bond of distilled spirits and denatured spirits and the use of denatured spirits in the manufacture of products shall extend to and apply in the Virgin Islands (i) in respect of the production, bonded warehousing, and withdrawal of spirits for shipment to the United States free of tax for the purposes authorized in 26 U.S.C. 5214(a) (2) and (3), and (ii) in respect of the production, bonded warehousing, and denaturation of spirits, and to the withdrawal and use of denatured spirits, where the denatured spirits or products containing denatured spirits are to be shipped to the United States free of tax.
27 C.F.R. § 26.201a