What is EPA's pesticide registration decision based on?

The Environmental Protection Agency (EPA) bases its pesticide registration decisions primarily on the evaluation of test data provided by the manufacturer. This rigorous assessment process involves reviewing scientific data from studies conducted by the manufacturer to determine the safety and efficacy of the pesticide for its intended use. The EPA requires a comprehensive set of information, including data on potential health effects, environmental impact, and effectiveness against pests.

Test data is crucial because it helps the EPA assess risks and benefits associated with the pesticide, ensuring that when it’s used as directed, it poses minimal risk to human health and the environment. The thorough review process encompasses both laboratory and field studies that provide insights into the pesticide's behavior in different conditions and its effect on various ecosystems.

While the other options might play a role in the broader context of pesticide use and safety, such as consumer feedback contributing to public opinion and environmental assessments done separately from registration decisions, the crux of the EPA's decision-making process relies significantly on the scientific data provided by manufacturers. This ensures that decisions are made based on systematic scientific evaluation rather than subjective factors.