StacksVerified U.S. regulatory reference

27 CFR §21.24

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)Formula. To every 100 gallons of ethyl alcohol of not less than 195 proof add:
  2. (b)Authorized use. Restricted to fuel use, comparable to specially denatured alcohol “Use Code No.” 611, 612, 613, 620, and 630.