What should occupants exiting a building be informed of during an emergency evacuation?

Occupants exiting a building during an emergency evacuation should be informed to gather in the closest assembly area. This practice is essential for several reasons. First, it ensures that everyone exits the building in an orderly fashion, which can help prevent panic and disorganization. Gathering in an assigned area allows for an accurate headcount to confirm that all individuals are safe and accounted for after the evacuation. Additionally, assembly areas are predetermined safe locations where emergency personnel can efficiently manage the situation and provide further instructions.

The other options do not support effective emergency management. Returning to offices could expose individuals to potential danger; leaving the premises permanently might not be advisable in an emergency context; and waiting for further instructions internally could delay evacuation and increase risk. Therefore, directing occupants to a designated assembly area is the most effective and safe practice during an emergency evacuation.