Should every label that has the signal word "warning" display a skull and crossbones?

The assertion that every label with the signal word "warning" must display a skull and crossbones is false. The skull and crossbones symbol serves as a specific hazard warning representing acute toxicity, particularly in the context of pesticides and chemicals that can cause severe harm or death if ingested, inhaled, or absorbed through the skin. This symbol is not universally required on all labels that utilize the term "warning".

The use of the word "warning" generally indicates that the product can cause moderate to severe injury or illness, but whether a skull and crossbones appears depends on the specific nature and severity of the hazards associated with the product. For example, less hazardous materials might carry the "caution" signal word and do not need to include the skull and crossbones graphic. In essence, labeling requirements hinge on the toxicity level and the nature of the risks presented by the product, ensuring that warnings are tailored effectively to communicate the appropriate level of hazard without a one-size-fits-all approach.