What type of training program must the WPS require for workers handling pesticide-treated plants?

The correct choice is focused on the specific requirements outlined in the Worker Protection Standard (WPS) regarding workers who come into contact with pesticide-treated plants. The WPS mandates that anyone who handles or works near these pesticide-treated plants must undergo a pesticide training program. This training is essential for ensuring that workers are aware of the hazards associated with pesticide exposure, the proper use of personal protective equipment, the necessary safety protocols, and how to respond in case of an emergency. This specialized training promotes not only workers' safety but also helps to mitigate risks to the environment and ensures compliance with regulatory standards.

The other training options listed, although related to safety and operational procedures, do not specifically address the unique risks associated with handling pesticide-treated plants. Emergency training focuses on responses to incidents rather than prevention and safe handling practices. Safety training might cover general workplace safety protocols but lacks the targeted instruction on pesticides. Equipment training would focus on the proper use of tools and machinery, which is not relevant to the specific hazards posed by pesticides.