General.
Municipal Code of Chicago § 18-28-512.1
in effect18-28-512.1 General.
When a subslab soil exhaust system is provided, the duct shall conform to the requirements of this section.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2687521Fetched: 10/24/2026
