27 CFR Part 26, Liquors and Articles From Puerto Rico and the Virgin Islands
27 CFR § 26.51 – Formulas for articles, eligible articles and products manufactured with denatured spirits
27 CFR §§ 26.191-26.194 (Subpart Ia) – Shipment of denatured spirits and products made with denatured spirits to the United States from Puerto Rico
27 CFR § 26.221 – Formulas for articles, eligible articles and products manufactured with denatured spirits
27 CFR §§ 26.291-26.297 (Subpart O) – Tax-free shipments to the United States from the Virgin Islands