What is the purpose of an EPA number on a pesticide label?

The purpose of an EPA number on a pesticide label is to identify the product registration by the Environmental Protection Agency (EPA). This number serves as a unique identifier for each pesticide product that has been approved for use, ensuring that the product meets safety and efficacy standards set forth by the agency. The registration indicates that the pesticide has undergone rigorous evaluation regarding its environmental impact, health hazards, and compliance with federal regulations. Therefore, the EPA number is crucial for consumers and professionals alike, as it assures them that the product has been tested and approved for safe use.

Other options, while essential for understanding pesticide labels, do not pertain specifically to the EPA number's function. Safety instructions, active ingredients, and formulation type are important but are presented through different sections of the label and do not require an EPA registration number to highlight those specific details.