OSHA's Evacuation Planning Steps (continued)

Determine how the evacuation order will be communicated to employees.
This could be as simple as using the company’s telephone system or pre-designated runners to convey messages by word of mouth. A public address system may also be used. Some fire alarm systems have the capability to be used as PA systems.
Determine specific routes of evacuation.
These routes must be carefully chosen so that evacuating employees and/or visitors are not routed near hazardous materials. All employees should know all routes out of the facility.