Companies need to conduct a mock disaster drill at least once every three months in order to comply with OSHA’s safety regulations. This ensures that evacuation is feasible under the current emergency procedures. Regular testing reveals weaknesses and shortcomings that can be improved upon so that all building occupants reach safety in the event of a disaster.
You can also use a fire drill log form to document the headcount of occupants, visitors, and people with disabilities to ensure there is no one left in the building after evacuation.