4 states, "At the least 1 obtainable route shall join each obtainable stage, like mezzanines, in multilivel properties and services" with Exception 1 studying, "An obtainable route will not be necessary to tales and mezzanines which have an aggregate area of not greater than three,000sf and can be found above https://manualliftingequipment05147.bcbloggers.com/37349837/detailed-notes-on-mezzanine-gate