What must a person responsible for pesticide containers do?

A person responsible for pesticide containers has a critical duty to maintain control over these containers, ensuring their safety and preventing unauthorized access. This responsibility is particularly important given the hazardous nature of pesticides. Storing containers in a locked enclosure or maintaining control helps to minimize risks associated with spills, leaks, or accidental exposure. By securing the containers, the individual not only complies with regulatory requirements but also protects public health and the environment from potential harm associated with improper handling of pesticides.

The other options, while they address important aspects of pesticide management, do not encompass the specific responsibility regarding security and access control that is crucial in this context. Labeling, disposal, and ventilation are all significant practices that contribute to the safe use and handling of pesticides, but they do not replace the imperative of securing containers to prevent misuse or accidents.