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

The signal word "WARNING" is specifically required on labels for moderately toxic products according to the classification systems used to communicate pesticide toxicity. This label helps users understand the level of risk associated with handling or applying the product.

Signal words are designed to provide immediate information about the toxicity of a chemical substance. "WARNING" indicates that the product can cause significant harm under certain conditions or if misused, but it is not as hazardous as substances labeled with "DANGER," which signifies a higher level of toxicity. Choosing the appropriate signal word is crucial for ensuring safe handling and use of the product while effectively communicating risks to the applicator and others who may be in proximity to the treated area.