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Crawl space and attic space.

Municipal Code of Chicago § 18-28-701.4
in effect
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18-28-701.4 Crawl space and attic space. For the purposes of this chapter, an opening to a naturally ventilated crawl space or attic space shall be considered equivalent to an opening to the outdoors.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2687685Fetched: 10/24/2026

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18-28-701.4 | Corpus