Subchapter VI. Standard Barrels 15 U.S. Code §231. Standard barrel for apples; steel barrels 15 U.S. Code §232. Barrels below standard; marking 15 U.S. Code §233. Penalty for violations 15 U.S. Code §234. Standard barrel for fruits or other dry commodity 15 U.S. Code §235. Sale or shipment of barrel of less capacity than standard; punishment 15 U.S. Code §236. Variations from standard permitted; prosecutions; law not applicable to certain barrels 15 U.S. Code §237. Standard barrels for lime 15 U.S. Code §238. Penalty for selling in barrels not marked 15 U.S. Code §239. Sale in containers of less capacity than barrel 15 U.S. Code §240. Rules and regulations 15 U.S. Code §241. Penalty for selling lime in unmarked barrels and containers 15 U.S. Code §242. Duty of United States attorney to enforce law