Which signal word is required on labels for moderately toxic products?

The required signal word for moderately toxic products is "WARNING." This term is used on pesticide labels to inform users that the product poses a moderate level of toxicity if ingested, inhaled, or come into contact with the skin. Products labeled with "WARNING" indicate that they can cause serious health effects but are not as dangerous as those labeled "DANGER," which signifies high toxicity. This classification helps applicators and consumers gauge the potential risks associated with a product and take appropriate safety measures.

In contrast, "CAUTION" is typically designated for products with low toxicity, while "DANGER" is reserved for highly toxic substances that can cause severe harm or injury. "POISON" is also used to indicate specific toxicological risk, particularly for products that are acutely harmful. Each signal word guides the user in understanding the relative risk of handling the product safely.