27 C.F.R. § 20.104 Residual alcohol in spirit vinegar.
Title 27 - Alcohol, Tobacco Products and Firearms
Commercial strength (40 grain) vinegar made from specially denatured alcohol may contain trace amounts of residual alcohol, not to exceed 0.5 percent of alcohol by volume, in the finished product.
Title 27: Alcohol, Tobacco and Firearms
PART 20—DISTRIBUTION AND USE OF DENATURED ALCOHOL AND RUM
Subpart F—Formulas and Statements of Process
Approval Policies
§ 20.104 Residual alcohol in spirit vinegar.