# Poisonous, toxic liquids, solids or gases — Postal shipping restrictions by item category

For Poisonous, toxic liquids, solids or gases, carrier is Royal Mail Wholesale (Access customers); restriction type is prohibited; scope is UK; conditions is Substances liable to cause death or injury if swallowed, inhaled or by skin contact, such as arsenic, beryllium, cyanide, fluorine, rat poison, recorded from its source on 2026-08-10.

- **Item category:** Poisonous, toxic liquids, solids or gases _(verified: appears in the quote below)_
- **Carrier:** Royal Mail Wholesale (Access customers) _(our reading, not quoted from the source)_
- **Restriction type:** prohibited _(our reading, not quoted from the source)_
- **Scope:** UK _(our reading, not quoted from the source)_
- **Conditions:** Substances liable to cause death or injury if swallowed, inhaled or by skin contact, such as arsenic, beryllium, cyanide, fluorine, rat poison. _(verified: appears in the quote below)_

## What the source says

> Including substances that are liable to cause death or injury if swallowed or inhaled or by skin contact, such as arsenic, beryllium, cyanide, fluorine, rat poison.

## Source

- https://www.royalmailwholesale.com/mint-project/uploads/233157117.pdf

Last verified: 2026-08-10. Review by: 2027-08-10.
Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).