Warning label
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. Most of them are placed to limit civil liability in lawsuits against the item's manufacturer or seller (see product liability). That sometimes results in labels which for some people seem to state the obvious. Government regulation. In the United States warning labels were instituted under the Federal Food, Drug, and Cosmetic Act of 1938. Cigarettes were not required  to have warning labels in the United States until in 1965 Congress passed the Federal Cigarette Labeling and Advertising Act (FCLAA). 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 the hazardous product. Abnormal warning labels. Warning labels have been produced for different items. In some cases, rumors have developed of labels warning against some very strange occurrences, such as the legendary microwave warning that allegedly states 'do not dry pets in  microwave'. Some companies hold 'strange warning label competitions' such as the former M-law wacky warning labels competition. 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.