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C402.4.4 Doors and Access Openings to Shafts, Chutes, Stairways, and Elevator Lobbies
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Doors and access openings from conditioned space to shafts, chutes, stairways and elevator lobbies shall either meet the requirements of Section C402.4.3 or shall be gasketed, weatherstripped or sealed.
Exception: Door openings required to comply with Section 716 or 716.4 of the International Building CodeBuilding Code; or doors and door openings required by the International Building CodeBuilding Code to comply with UL 1784 shall not be required to comply with Section C402.4.4.
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