Which act regulates the use of pesticides at the federal level in the United States?

The Federal Environmental Pesticide Control Act (FEPCA) is the correct choice because it directly addresses the regulation of pesticide use at the federal level. FEPCA, which amends the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), established a comprehensive regulatory framework for the registration, distribution, and use of pesticides. This act ensures that pesticides used in the United States are evaluated for safety and effectiveness before they can be sold or applied, thereby protecting human health and the environment.

The Food Quality Protection Act (FQPA) is significant as it focuses on safety standards for food-related pesticide residues, but it operates within the broader framework established by FEPCA. The Pest Control Management Act (PCMA) and the Commercial Pesticide Safety Act (CPSA) do not exist as recognized federal statutes concerning pesticide regulation and are likely conflated terms or less comprehensive in their coverage compared to FEPCA. Therefore, FEPCA stands out for its role in laying down the foundational regulatory practices for the safe usage of pesticides across the country.