Section 407A — MECHANICAL
2025 California Existing Building Code (Title 24, Part 10) · 2025 edition · ingested 2026-07-07 · California
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407 A .1 General. Existing mechanical systems undergoing repair shall not make the building less complying than it was before the damaged occurred. 4A-4 2025 CALIFORNIA EXISTING BUILDING CODE on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. REPAIRS