Public utility structures.
Municipal Code of Chicago § 14X-5-504.3.1
in effect14X-5-504.3.1 Public utility structures.
Every existing structure that is owned or operated by any person whose primary business is the generation or transmission of electrical power and that houses one or more electrical generators, electrical transformers, or switching equipment for a service area beyond the structure in which the equipment is located must be equipped throughout with an automatic fire-extinguishing system.
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2675755Fetched: 10/24/2026
