WAC 51-54A-1023. Section 1023 — Interior exit stairways and ramps

1023.12 Smokeproof enclosures. Where required by Section 403.5.4, 405.7.2 or 412.2.2.1, of the International Building Code , interior exit stairways and ramps shall be smokeproof enclosures in accordance with Section 909.20 of the International Building Code . Where interior exit stairways and ramps are pressurized in accordance with Section 909.20.5 of the International Building Code , the smoke control pressurization system shall comply with the requirements specified in Section 909.6.3 of the International Building Code .