[Code of Federal Regulations] [Title 27, Volume 1] [Revised as of April 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 27CFR30.72] [Page 748] TITLE 27--ALCOHOL, TOBACCO PRODUCTS AND FIREARMS CHAPTER I--ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY PART 30--GAUGING MANUAL--Table of Contents Subpart F--Optional Gauging Procedures Sec. 30.72 Recording obscuration by proprietors using the optional method for determination of proof. Any proprietor using the optional method for determination of proof for spirits containing solids of 400 milligrams or less per 100 milligrams as provided in Sec. 30.71 shall record the obscuration so determined on the record of gauge required by 27 CFR part 19. (Sec. 201, Pub. L. 85-859, 72 Stat. 1358, as amended, 1362, as amended (26 U.S.C. 5211)) [[Page 749]]