CFR > Title 27 - Alcohol, Tobacco Products and Firearms > CHAPTER I—ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY > SUBCHAPTER A—LIQUORS (parts 1 to 31) > PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM > SUBPART A—General Provisions (§21.1 to §21.7)