In which of the following situations is there an exception to the regulation requiring employee handlers to wear eye protection when handling pesticides?

Eye protection requirements for pesticide handlers are designed to minimize exposure to potentially harmful chemicals that could affect the eyes. However, there are certain situations where these regulations allow for some flexibility based on the degree of exposure risk.

Using an enclosed cab while applying pesticides serves as a significant barrier between the operator and the chemical materials, thereby reducing the risk of direct exposure to the eyes. In this scenario, the cab provides a controlled environment that protects the handler from the potential splashes or drift that could occur during application. This justifies the exception to the requirement for eye protection, as the enclosed cab significantly mitigates the threat of pesticide exposure.

In contrast, scenarios involving pesticides labeled with the signal word "CAUTION," hand-held applications, or any standard mixing system typically involve a greater risk of exposure. These situations may lead to potential splashes, drifts, or other forms of contact with the pesticides that could necessitate wearing eye protection to ensure safety. Therefore, the regulations maintain a stricter stance for these activities, emphasizing the protective measures required to safeguard handlers effectively.