Before liquors or articles of Puerto Rican manufacture may be shipped to the United States, an insular permit, TTB Form 5110.51 (for distilled spirits) or TTB Form 5100.21 (for wine or beer), to compute the taxes imposed by 26 U.S.C. 7652(a), and to withdraw the products from the bonded establishment where they may be deposited, must be obtained from the Secretary, and such products may not be shipped to the United States until a permit to ship, on TTB Form 5170.7, is applied for and obtained from the Secretary.

[T.D. 6551, 26 FR 1490, Feb. 22, 1961. Redesignated at 40 FR 16835, Apr. 15, 1975]