What is the purpose of the restricted entry interval (REI) in pesticide application?

The purpose of the restricted entry interval (REI) is specifically to protect employees from exposure to pesticide residues following a pesticide application. After application, there is a certain period during which workers are prohibited from entering the treated area to ensure that they are not exposed to any harmful effects from the chemicals applied. This interval is established based on the toxicity of the pesticide and the potential for exposure, with the intent of safeguarding human health and ensuring that workers can enter the area safely once the risk has been adequately mitigated.

The REI informs people when it is safe to enter a field after treatment, which is critical for maintaining safety in agricultural practices and complying with regulations regarding pesticide use.