{"data":{"id":"us/27-cfr-21.55","jurisdiction":"us","citation":"27 CFR 21.55","heading":"Formula No. 28-A.","body":"(a) Formula. To every 100 gallons of alcohol add:\nOne gallon or any combination totaling 1 gallon of either gasoline, unleaded gasoline, heptane, or rubber hydrocarbon solvent.\n(b) Authorized uses. (1) As a fuel:\n611. Automobile and supplementary fuels.\n612. Airplane and supplementary fuels.\n613. Rocket and jet fuels.\n620. Proprietary heating fuels.\n630. Other fuel uses.\n(2) Miscellaneous uses:\n812. Product development and pilot plant uses (own use only).","path":["Title 27—Alcohol, Tobacco Products and Firearms","CHAPTER I—ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY","SUBCHAPTER A—ALCOHOL","PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM","Subpart D—Specially Denatured Spirits Formulas and Authorized Uses"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-27.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:11Z","sha256":"48e36d7e2f9fb601b98c0dfbe0fa878fc497834a84daf59c5a417b627960c7a7","source_id":"us-cfr","stale":true,"prev":"us/27-cfr-21.52-21.54","next":"us/27-cfr-21.56"},"notice":"GroundRules: Original legal text. Not legal advice."}