A warning label is a label attached to a product, or contained in a product's instruction manual, warning the user about risks associated with its use, and may include restrictions by the manufacturer or seller on certain uses.[1] Most of them are placed to limit civil liability in lawsuits against the item's manufacturer or seller (see product liability).[2][3] That sometimes results in labels which for some people seem to state the obvious.
Lack of a warning label can become an informational defect, which is a type of product defect.[4]
In the EEA, 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.
Hazard level warning labels
In the US or elsewhere:
Term
Hazard
Meaning
Usage
Danger!
Highest level
Indicates severe injury or death certain to occur if not avoided.
Reserved for the most severe situations, often accompanied by symbols or pictograms that are universally recognized to quickly convey the risks involved even if the language is not recognized by the viewer.
Warning!
Medium level
There is a potential hazard that could result in serious injury or death but is less immediate or severe or probable than those marked with "Danger."
Signals a need for caution and awareness of the potential risks, and, like "Danger," is often paired with symbols to facilitate quick recognition.
Caution!
Lowest level
There is a potential hazard that could result in minor or moderate injury, or there is a risk of property damage.
Used in situations where the risks do not typically result in serious injury or death but where attention and care are still required. It advises individuals to proceed with caution to prevent accidents.
Some companies hold competitions to find particularly strange warning labels, such as Michigan Lawsuit Abuse Watch's "Wacky Warning Labels" contest.[7][8][9] The 2004 winner was "If you do not understand, or cannot read, all directions, cautions and warnings, do not use this product."[7]
While many safe products intended for human consumption may require warning labels due to the health risks associated with using them, it is only tobacco products that have strongly worded warnings on their health risks.[citation needed]
^Wogalter, Michael S. (2006). "Introduction". In Wogalter, Michael S. (ed.). Handbook of warnings. Mahwah, New Jersey: Lawrence Erlbaum Associates. ISBN978-0-8058-4724-6.
^Egilman, D. & Bohme, S. R. (2006). "Purposes and Scope of Warnings". In Wogalter, Michael S. (ed.). Handbook of warnings. Mahwah, New Jersey: Lawrence Erlbaum Associates. ISBN978-0-8058-4724-6.
^Khoury, Clarke E. (1989). "Warning Labels May Be Hazardous to Your Health: Common-Law and Statutory Responses to Alcoholic Beverage Manufacturers' Duty to Warn". Cornell Law Review. 75: 158–188.