Which statement about transporting pesticides is true?

Transporting pesticides safely is crucial to ensure both environmental protection and compliance with regulations. The statement about enclosed and lockable cargo boxes offering the greatest protection is correct because such containers help to prevent pesticide spills, leaks, and exposure to the elements. Enclosed storage minimizes the risk of contamination, keeps chemicals secure from unauthorized access, and protects the integrity of the pesticides during transit.

Utilizing these types of containers also helps maintain appropriate temperature conditions, reducing the likelihood of degradation due to extreme weather. This is especially important for certain pesticides that require specific storage conditions to remain effective and safe.

In contrast, using open beds of trucks could expose pesticides to weather conditions and potential accidents, while stacking pesticides without preparation can lead to spills or mixing of incompatible substances. Lastly, transporting pesticides in any vehicle is not advisable, as vehicles must meet specific safety standards to minimize risks during transit.