Which action is least effective in emergency preparedness planning?

Moving critical items to safety is not as effective in emergency preparedness planning compared to the other options because it typically addresses a reactive measure rather than a proactive and comprehensive strategy. Effective emergency preparedness planning involves establishing protocols that not only mitigate immediate threats but also foster long-term resilience and recovery.

In contrast, ensuring personnel close doors and windows serves as a protective action to limit exposure to external threats, potentially reducing damage and risk. Completing shutdown check-off lists involves systematic checks to ensure that equipment and operations are safely secured, which is critical during an emergency to prevent further incidents. Developing plans that are tested by department managers ensures that emergency protocols are well understood and can be executed efficiently. This thorough planning creates a more coordinated response during actual emergencies, compared to simply relocating critical items, which does not encompass the broader scope of preparation and response necessary for effective emergency management.