Business Units

This is Chapter 13-68 of the Chicago Code, titled “Business Units.” It is part of Title 13, titled “Buildings And Construction.” It contains 3 laws. It’s comprised of the following 3 sections.

§ 13-68-010
General requirements
§ 13-68-020
Ventilation of intermediate offices
§ 13-68-021
Telephone exchanges – Ventilation access for removal of toxic gases