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Vent termination.

Municipal Code of Chicago § 18-29-903.3
in effect
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18-29-903.3 Vent termination. Every vent stack or stack vent shall extend outdoors and terminate to the open air.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2692452Fetched: 10/24/2026

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