For AI agents: read the machine-readable documentation index at /llms.txt or the single-file full reference at /llms-full.txt.

§ 18-28-1106.4 — Opening protectives

Municipal Code of Chicago (2026 S-74, current through Council Journal of June 17, 2026) · Municipal Code of Chicago § 18-28-1106.4

Corpus is an independent public-information project, not the official City of Chicago website. Stable reference URL

18-28-1106.4 Opening protectives.

Opening protection between the machinery room and other occupied spaces shall be approved, self-closing, tight-fitting fire doors with a minimum fire-resistance rating of hour.