What is a condition under which a pesticide would not be eligible for reregistration?

A pesticide would not be eligible for reregistration if it is found to cause unreasonable risks to health or the environment. This is grounded in the regulatory framework established by the Environmental Protection Agency (EPA) and similar agencies, which prioritize the safety of both human health and the ecosystem. When evaluating pesticides for reregistration, regulators assess their safety profile, including potential adverse effects on non-target organisms, human health issues such as toxicity or chronic exposure risks, and environmental impacts, such as contamination of soil or water resources.

If a pesticide poses significant risks, those concerns outweigh any potential benefits it may provide, leading to denial of reregistration. Thus, demonstrating that a pesticide’s use would not result in unreasonable risks is a key component of its eligibility for continued market presence.

While the other options may present challenges for a pesticide's commercialization or public acceptance, they do not directly influence reregistration eligibility in the same critical manner as unreasonable risks to health or the environment. For instance, sales price, public interest, or exclusivity to certain users could affect market dynamics but would not automatically disqualify a pesticide from reregistration under regulatory standards.