Skip to content

California Building Standards Code

California Mechanical Code (Title 24, Part 4)

Part 4 of Title 24 — HVAC, ventilation, exhaust and mechanical system requirements.

Edition
2019
Effective
2020-01-01
Last updated
2026-09-10
Contents
24 chapters · 836 sections
Jurisdiction
California
Ask AI about this codeSearch the libraryPlain-English guide

GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.