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Duct length.

Municipal Code of Chicago § 18-28-504.9.4
in effect
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18-28-504.9.4 Duct length. The maximum allowable exhaust duct length shall be determined by one of the methods specified in Sections 18-28-504.9.4.1 through 18-28-504.9.4.3. (Amend Coun. J. 9-14-21, p. 35949, Art. V, § 11)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2694652Fetched: 10/24/2026

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18-28-504.9.4 | Corpus