2013 California Standards for Accessible Design Pocket Guide
1007.3 Stairways. In order to be considered part of an accessible means of egress, a stairway between stories shall have a clear width of 48 inches (1219 mm) minimum between handrails and shall either incorporate an area of refuge within an enlarged floor-level landing or shall be accessed from either an area of refuge complying with Section 1007.6 or a horizontal exit. Exit access stairways that connect levels in the same story are not permitted as part an accessible means of egress. [DSA-AC & HCD 1-AC] In addition, exit stairways shall comply with Chapter 11A, Sections 1115A and 1123A, or Chapter 11B, Sections 11B-210 and 11B-504, as applicable.
Exceptions:
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The clear width of 48 inches (1219 mm) between is not required in buildings equipped throughout with an installed in accordance with Section 903.3.1.1 or 903.3.1.2.
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Areas of refuge are not required at stairways in buildings equipped throughout by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.
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The clear width of 48 inches (1219 mm) between handrails is not required for stairways accessed from a horizontal exit.
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Areas of refuge are not required at stairways serving open parking garages.
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Areas of refuge are not required for smoke protected seating areas complying with Section 1028.6.2.
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The areas of refuge are not required in Group R-2 occupancies.
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