When must SOP worker/supervisor statements be signed?

The correct choice emphasizes that SOP worker/supervisor statements must be signed under specific circumstances to ensure safety and compliance with operational protocols. These circumstances include signing before use if the process has been dormant for 30 days, at quarterly intervals, after any changes are made to the process, and following a mishap.

This approach ensures that all personnel are adequately informed and trained on current procedures, which helps maintain a safe work environment and prepares workers to handle the processes effectively. Signing the statements at these intervals allows for the incorporation of any updates or lessons learned from past incidents, reinforcing a culture of continuous safety improvement. The timing of these signatures is crucial because it aligns with best practices in safety management, aiming to minimize risk and enhance overall operational readiness.