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The use of pesticides on farms in the USA is regulated by the Environmental Protection Agency (EPA) under the [Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)](https://www.epa.gov/laws-regulations/summary-federal-insecticide-fungicide-and-rodenticide-act). Pesticides must be registered with the EPA, and farmers must follow the label instructions for safe and proper use. The EPA also sets tolerance levels for pesticide residues on food crops. Some states may have additional restrictions or requirements for pesticide use. Farmers must also comply with the Worker Protection Standard, which establishes safety measures for workers handling pesticides.