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Pedestrian passage way.

Municipal Code of Chicago § 18-28-403.3.6
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18-28-403.3.6 Pedestrian passage way. The velocity of air movement due to ventilation at any cross section of a pedestrian passage way shall not exceed 60 feet per minute.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2686922Fetched: 10/24/2026

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18-28-403.3.6 | Corpus