How often must fire safety plans be reviewed and updated on construction sites?

Fire safety plans must be reviewed and updated whenever there are changes in operations or site layout to ensure they remain effective and relevant to the current conditions of the construction site. This is critical because construction sites often undergo frequent modifications—such as changes in building structures, the introduction of new materials, or alterations in work practices—that could significantly alter fire risks. By routinely updating the fire safety plan, site managers can adapt preventative measures, emergency procedures, and evacuation plans to reflect these changes, thereby enhancing safety for workers and minimizing fire hazards.

In contrast, the other options suggest fixed intervals for updates or responses solely triggered by incidents, which may not sufficiently address the dynamic nature of construction work. Adopting a flexible approach, where assessments are tied to operational changes, ensures that the fire safety plan is always aligned with the current site conditions, promoting ongoing safety.