U.S. Code / Title 15 — Commerce and Trade / Chapter 6—Weights and Measures and Standard…Title 15SubchapterSubchapter V—Standards of ElectricityContents§ 221, 222. Repealed. July 21, 1950, ch. 484, §13, 64 Stat. 370§ 223, 224. Repealed. Pub. L. 110–69, title III, §3013(c)(2), Aug. 9, 2007, 121 Stat. 598