Standards & Codes

International Building Code (IBC)

Also known as: International Building Code, IBC Section 423

IBC Section 423 in plain English

Storm shelter design and construction must follow ICC 500
Certain critical-occupancy buildings (Group E schools, 911 call centers, emergency operations) must include a shelter when located in 250 mph design wind zones
Shelter signage and access must comply with adopted accessibility provisions

Authority: International Building Code, Section 423. Last reviewed 2026-06-07.

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