After evacuating a building, regroup in a safe place.
  If the Fire Alarms are Ringing in Your Building

You must evacuate the building and stay out until notified to return.
Move upwind from the building and stay clear of streets, driveways, sidewalks, and other access ways to the building.
If you are a supervisor, try to account for your employees, keep them together, and report any missing persons to the emergency personnel at the scene.