Arizona Adopts 2024 Building Codes

The state of Arizona Office of Manufactured Housing has adopted the 2024 I-Codes with an effective date of December 5, 2026.

The following codes have been adopted:

• International Building Code (IBC), 2024 edition;
• International Residential Code (IRC), including appendices BB (Tiny Homes) and BC (Accessory Dwellings), 2024 edition;
• International Mechanical Code (IMC), 2024 edition;
• International Plumbing Code (IPC), 2024 edition;
• International Fuel Gas Code (IFGC), 2024 edition;
• International Energy Conservation Code (IECC), 2024 edition;
• National Electrical Code (NEC), 2023 edition, available from the National Fire Protection Association;
• International Fire Code (IFC), Chapters 1 through 3, 6 through 12, 20, 23, 24, 31 through 33, and Appendices B and F, 2024 edition

  For more information, please visit the Arizona Office of Manufactured Housing website.