27 CFR 21.5 - Denatured spirits for export.
Spirits may be denatured in accordance with formulas prescribed by the government of a foreign country to which the denatured spirits will be exported. However, the denaturer must first apply for and obtain written permission from the appropriate TTB officer. The application shall be submitted to the appropriate TTB officer and shall contain the following information:
(a) A complete list of ingredients for the spirits to be denatured.
(b) The exact amount of each ingredient to be used in denaturing the spirits.
(c) A copy (accompanied by an English translation as necessary) of the law or regulations of the foreign country to which the denatured spirits will be exported, specifying the denatured spirits formulation prescribed by that country.