27 C.F.R. § 30.36 General requirements.
Title 27 - Alcohol, Tobacco Products and Firearms
The quantity determination of distilled spirits that are withdrawn from bond in bulk upon tax determination or payment shall be by weight. The quantity of other distilled spirits or denatured spirits may be determined by weight or by volume. When the quantity of distilled spirits or denatured distilled spirits is determined by volume, such determination may be by meter as provided in 27 CFR Part 19, or when approved by the appropriate TTB officer, another method or device. (Sec. 201, Pub. L. 85–859, 72 Stat. 1358, as amended (26 U.S.C. 5204)) [T.D. ATF–198, 50 FR 8535, Mar. 1, 1985]
Title 27: Alcohol, Tobacco and Firearms
PART 30—GAUGING MANUAL
Subpart D—Gauging Procedures
Determination of Quantity
§ 30.36 General requirements.
