1. OS3


OS3 Safety in Use



Intent 1:

To supersede the requirements of Article, and permit a different stair design and step dimension, on the basis that fire escapes are not frequently used, and certain conditions are met with respect to the stair design and step dimensions.

This is to limit the probability of delays in the evacuation or movement of persons to a safe place in an emergency situation, which could lead to harm to persons.

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