Signs indicating probable approach must be visible from what distance around pesticide storage areas?

The correct option indicates that signs warning of potential hazards surrounding pesticide storage areas must be visible from a distance of 25 feet. This requirement is in place to ensure that individuals approaching the area are adequately warned about the presence of hazardous materials, allowing them to take necessary precautions. The 25-foot visibility rule strikes a balance between being far enough away to alert someone while still being practical for ensuring that the signs are effective in conveying the message of safety.

Visibility from this distance is intended to provide ample time for individuals to assess the situation and decide whether to proceed or take precautions. It's a standard that helps to enhance the overall safety protocols in facilities that handle pesticides, ensuring safety for both workers and the public nearby. Having this visibility standard helps mitigate risks associated with accidental exposure or unintended access to hazardous materials.