2019 California Standards for Accessible Design Guide (effective January 1, 2020 with July 1, 2021 amendments)
1009.6.4 Separation.
Each area of refuge shall be separated from the remainder of the story by a smoke barrier complying with Section 709 or a horizontal exit complying with Section 1026. Each area of refuge shall be designed to minimize the intrusion of smoke.
Exceptions:
1. Areas of refuge located within an enclosure for interior exit stairways complying with Section 1023.
2. Areas of refuge in outdoor facilities where exit access is essentially open to the outside.
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