# Ketones, liquid, n.o.s. · USPS · II, III — Mailing and air-carriage restrictions by item category For Ketones, liquid, n.o.s. · USPS · II, III, item category is Ketones, liquid, n.o.s; carrier is USPS; dot packing group is II, III; restriction type is restricted; scope is domestic mail: surface only (air prohibited), recorded from its source on 2026-08-29. - **Item category:** Ketones, liquid, n.o.s. _(verified: appears in the quote below)_ - **Carrier:** USPS _(our reading, not quoted from the source)_ - **DOT packing group:** II, III _(verified: appears in the quote below)_ - **Restriction type:** restricted _(our reading, not quoted from the source)_ - **Scope:** domestic mail: surface only (air prohibited) _(our reading, not quoted from the source)_ - **Conditions:** Hazard class 3, UN1224, packing group II, III; domestic mail air: Prohibited; domestic mail surface: 3A ## What the source says > Ketones, liquid, n.o.s. 3 UN1224 II, III Prohibited 3A ## Source - https://pe.usps.com/cpim/ftp/pubs/pub52/pub52.pdf Last verified: 2026-08-29. Review by: 2027-08-29. Part of [Mailing and air-carriage restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).