If warning signs are used to notify workers to stay out of a treated area, when should they be taken down or covered?

• A. Immediately after application
• B. Within three days after the end of the REI
• C. After two weeks
• D. At the end of the month

Answer: (B)

Warning signs are part of the restricted-entry interval, the period when entry is limited to protect workers from pesticide exposure. These signs should stay up for the entire REI and be removed or covered within three days after the REI ends. This timing ensures entry is allowed as soon as it’s safe, without keeping signs up longer than needed and causing confusion. Removing them immediately after application would lift the safety measure too soon, while waiting until two weeks or the end of the month ignores the actual end of the REI. Always check the label for the exact REI length, since some products have longer or shorter intervals.