2024 Building Code Adoption Tracking: FEMA Region 9

This FEMA fact sheet provides a summary of the adoption rates of hazard-resistant building codes in FEMA Region 9 states and territories, including California, Nevada, Arizona, Hawaii, Guam, American Samoa, and the Northern Mariana Islands. It details the percentage of jurisdictions in high-risk areas that have adopted the 2018 or later International Building Code (IBC) and International Residential Code (IRC), and highlights variations in code strength and specific amendments affecting hazard resistance. The fact sheet explains the importance of code adoption for disaster resilience, outlines FEMA’s ongoing role in supporting code consistency and enforcement, and describes how code adoption data informs federal policy and funding decisions.