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Whiskey, bourbon and rum

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Age, wood and state of distillation are regulated statements, not marketing copy.

What they share

Time in wood, a colour that comes from it, and a set of label statements that follow from how and where they were made.

Age is a disclosure

The regulation requires age statements in specified circumstances. An age on a label is a claim with a definition behind it, and the definition is about the youngest spirit in the bottle rather than the oldest.

State of distillation

Required for certain whiskeys. It is a fact about where the spirit was made, which is not always where it was bottled, and the distinction matters to a producer who sources.

Wood treatment

Separately disclosable. A spirit finished with wood chips or staves rather than aged in a barrel is a different thing and the label has to say so.

Which is why class and type comes before the brand name

What the product may legally be called constrains what you can put on the front. Designing a bourbon label before confirming the product qualifies as bourbon is the expensive order.

The bottle is doing more work here

Aged spirits are sold on provenance and craft, which makes glass weight, shape, closure and capsule part of the product rather than packaging. This is the category where a custom mould can be worth the money.

And the closure is usually a cork

A bar top cork reads as the category standard and it is a different sealing problem from a screw cap: it breathes, it can leak if the bottle lies down, and it has to be specified against the neck rather than assumed.

750 mL and then 375 mL

The standard presentation and the trial size. Both are authorized, both are recognised by the trade, and a two-size launch is the most common shape of a first release.

References

27 CFR 5.63, mandatory label information. Brand name, class and type designation and alcohol content appear in the same field of vision, so that "all of the pieces of information can be viewed simultaneously without the need to turn the container". Name and address and net contents may appear anywhere on the container, and the net contents "may be blown, embossed, or molded into the container". law.cornell.edu
27 CFR 5.203(a), the standards of fill: "The following metric standards of fill are authorized for distilled spirits, whether domestically bottled or imported" — 3.75 L, 3 L, 2 L, 1.8 L, 1.75 L, 1.5 L, 1.0 L, 945 mL, 900 mL, 750 mL, 720 mL, 710 mL, 700 mL, 570 mL, 500 mL, 475 mL, 375 mL, 355 mL, 350 mL, 331 mL, 250 mL, 200 mL, 187 mL, 100 mL and 50 mL. law.cornell.edu
Written from 27 CFR 5.63, 5.203, 16.21 and 16.22, and from the catalog as it stood on 17 October 2026. Distilled spirits are federally permitted and separately regulated by every state; label approval, permits and formula approval are outside what these pages cover, and nothing here is a substitute for TTB guidance on a specific product.