34 Pa. Code § 56.31
Current through Register Vol. 55, No. 1, January 4, 2025
In buildings which require more than one means of egress, at least one of the required means of egress shall be a stair tower of 1-hour construction with C label fire door assemblies except that an exterior stair may be used in lieu of a stair tower.
34 Pa. Code § 56.31