27 CFR 5.129 governs health-related statements on distilled spirits labels — the broad definition, the untrue-or-misleading prohibition, specific health claims, directional-statement disclaimers, and how the parallel wine and malt beverage sections differ.

27 CFR 5.143 defines every whisky type a US label can claim: bourbon's 51% corn mash and charred new oak, the 160° distillation and 125° entry proof caps, 'straight' whisky's 2-year minimum, the corn whisky exception, and the American single malt standard added in December 2024.

27 CFR 5.203 lists the only container sizes distilled spirits may be sold in — 25 authorized sizes from 50 mL to 3.75 L after TTB's January 2025 expansion, which added 187, 355, 500 mL and more, and erased the old can-versus-bottle distinction. Here is the full current list.

27 CFR 5.66 dictates who must be named on a domestic spirits label and how: bottled by versus distilled by, address rules tied to the basic permit, contract bottling disclosures, and the state-of-distillation rule that exposes sourced whiskey. Learn the rules and the lawsuits behind them.