27 C.F.R. § 20.93 Changes to formulas.
Title 27 - Alcohol, Tobacco Products and Firearms
(a) General. Except as provided in paragraph (b) of this section, any change of ingredients or quantities of ingredients listed in an appoved formula shall constitute a different article for which a different approved formula is required by §20.91. (b) Exceptions. A different approved formula is not required for the following— (1) A change from an ingredient identified in the formula by a brand name to the same quantity of a chemically identical ingredient acquired under a different brand name, or (2) A change of an ingredient which is a coloring material.
Title 27: Alcohol, Tobacco and Firearms
PART 20—DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM
Subpart F—Formulas and Statements of Process
§ 20.93 Changes to formulas.