629 Planning for Workplace Emergencies

The following are basic requirements for the number and location of exits in the workplace:

The number of exit routes should be adequate.
At least two exit routes should be available in a workplace to permit prompt evacuation of employees and other building occupants during an emergency.

Never block exits.

The exit routes should be located as far away as practical from each other so that if one exit route is blocked by fire or smoke, employees can evacuate using the second exit route.

More than two exit routes should be available in a workplace if the number of employees, the size of the building, its occupancy, or the arrangement of the workplace is such that all employees would not be able to evacuate safely during an emergency.
A single exit route is permitted where the number of employees, the size of the building, its occupancy, or the arrangement of the workplace is such that all employees would be able to evacuate safely during an emergency.

For assistance in determining the number of exit routes necessary for your workplace, consult NFPA 101, Life Safety Code.

2-3. Why should exit routes be located as far away as practical from each other?

NFPA 1910.150, Chapter 7, Ingress and Egress

To ensure all employees can exit during an emergency as quickly as possible

If one is blocked by smoke or fire, employees can use the second exit to evacuate

To provide alternate evacuation routes of water sprinklers are active

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