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2021 IPC - Air Admittance Valve for Common Vents

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Joined
Feb 2, 2024
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Good morning,

Are air-admittance valves approved for common vents per the 2021 IPC?
§918.3: "Individual, branch and circuit vents shall be permitted to terminate to an [...] air admittance valve". There is no mention of common vents here, but maybe common vents are qualified as individual vents?
 
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