27 C.F.R. § 21.24 Formula No. 20.
Title 27 - Alcohol, Tobacco Products and Firearms
(a) Formula. To every 100 gallons of ethyl alcohol of not less than 195 proof add:
A total of 2.0 gallons of either unleaded gasoline, rubber hydrocarbon solvent, kerosene, or deodorized kerosene; or any combination of these. (b) Authorized use. Restricted to fuel use, comparable to specially denatured alcohol “Use Code No.” 611, 612, 613, 620, and 630.
Title 27: Alcohol, Tobacco and Firearms
PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM
Subpart C—Completely Denatured Alcohol Formulas
§ 21.24 Formula No. 20.

