Which of the following is NOT a required element on a pesticide label?

Material Safety Data Sheets (MSDS), now commonly referred to as Safety Data Sheets (SDS), are not required elements on pesticide labels. The purpose of a pesticide label is to provide essential information directly related to the safe and effective use of the pesticide itself, and it must include specific elements mandated by regulatory authorities.

The required elements typically found on a pesticide label include Directions for Use, which inform users how to properly apply the pesticide; Signal Words, which indicate the level of toxicity (e.g., "Caution," "Warning," "Danger"); and the Name and Address of the Responsible Party, which identifies the manufacturer or registrant of the product, providing accountability and a point of contact for users.

While Safety Data Sheets are crucial for understanding the hazards and safe handling of chemicals in various contexts, they are not part of the labeling requirements that directly accompany pesticide products. Hence, choosing that option correctly identifies something that is not required on a pesticide label, emphasizing the specific information that ensures safe pesticide usage.