Warning label

[4] Warning labels are found on various product packagings, such as chemicals (flammable, pesticide, poisons, etc.

In the European Economic Area, a product containing hazardous mixtures must have a unique formula identifier (UFI) code.

This is not a warning label per se, but a code that helps poison control centres identify the exact formula of a hazardous product.

In the United States, warning labels have been instituted under a number of different government organizations.

In the United States[8] or elsewhere, the terms Danger, Warning and Caution are regulated by the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) ANSI Z535.

Warning label on a cigarette pack: "Smoking kills".
Warning label for a personal watercraft .
Warning label for toxic chemicals.