[Code of Federal Regulations] [Title 27, Volume 1] [Revised as of April 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 27CFR21.31] [Page 471] TITLE 27--ALCOHOL, TOBACCO PRODUCTS AND FIREARMS CHAPTER I--BUREAU OF ALCOHOL, TOBACCO AND FIREARMS, DEPARTMENT OF THE TREASURY PART 21--FORMULAS FOR DENATURED ALCOHOL AND RUM--Table of Contents Subpart D--Specially Denatured Spirits Formulas and Authorized Uses Sec. 21.31 General. (a) Formulas for specially denatured spirits. Alcohol and rum shall be specially denatured only in accordance with formulas prescribed in this subpart (or in accordance with Sec. 21.5). (b) Proof of spirits for denaturation. Alcohol of not less than 185 proof shall be used in the manufacture of all formulas of specially denatured alcohol, unless otherwise specifically stated or unless otherwise authorized by the appropriate ATF officer. Rum for denaturation shall be of not less than 150 proof and may be denatured only in accordance with Formula No. 4. (c) Use of Denatured Spirits. Users and manufacturers holding approved Forms 5150.19 (formerly 1479-A) covering use in processes or manufacture of products no longer authorized for a particular formula may continue that use. Pursuant to written application and subject to the provisions of 26 U.S.C. Chapter 51, Part 20 of this chapter, and this part, the appropriate ATF officer, may authorize the use of any formula of specially denatured alcohol or specially denatured rum for uses not specifically authorized in this part. The code number before each item under ``authorized uses'' shall be used in reporting the use of specially denatured alcohol or specially denatured rum. [T.D. ATF-133, 48 FR 24673, June 2, 1983, as amended by T.D. ATF-199, 50 FR 9183, Mar. 6, 1985]