27 C.F.R. § 26.192 Samples and analysis.
Title 27 - Alcohol, Tobacco Products and Firearms
The chemist of the Treasury of Puerto Rico may take samples of the product to be shipped in order to determine that it is eligible for tax-free status.
Title 27: Alcohol, Tobacco and Firearms
PART 26—LIQUORS AND ARTICLES FROM PUERTO RICO AND THE VIRGIN ISLANDS
Subpart Ia—Shipment of Denatured Spirits and Products Made With Denatured Spirits to the United States From Puerto Rico
§ 26.192 Samples and analysis.