How can you determine the length of a product's restricted entry interval (REI)?

• A. It's listed in the product's Agricultural Use Requirements box
• B. It's printed on the label only
• C. It changes with wind speed
• D. It is always 24 hours

Answer: (A)

You determine the length of a product’s restricted-entry interval by looking at the product’s label, specifically in the Agricultural Use Requirements box. That box on the label lists the entry restrictions for that product and use, and it’s the official source you must follow before entering a treated area.

The REI doesn’t change with wind speed; the duration is fixed for that product and use as stated on the label. It also isn’t universally 24 hours—some products have shorter or longer REIs depending on how the product works and what it’s used with. So the best answer is the one that points you to the Agricultural Use Requirements box on the label, since that’s where the exact, mandated REI is found.