{"id":"us-il","license":"CC-BY-4.0","data":{"name":"Illinois","kind":"state","parent":"us","coverageStatus":"none","hubLede":"Illinois does not adopt a statewide WUI construction book. Public Act 103-0510 amends the Capital Development Board Act to set a 1 January 2025 baseline of IBC, IEBC, and IRC for local structural design. CDB’s code summary also names the Illinois Energy Conservation Code, Accessibility Code, Plumbing Code, and Fire Prevention and Safety Rules. IWUIC is not on that list. Confirm with the building official.","sources":[{"title":"Building Codes and Regulations","url":"https://cdb.illinois.gov/business/codes/buildingcodesregulations.html","publisher":"Illinois Capital Development Board","sourceType":"official","accessedOn":"2026-08-26T00:00:00.000Z"}],"author":"grayson-graham","reviewStatus":"draft","lastVerified":"2026-08-26T00:00:00.000Z"},"ancestors":["us"],"children":[],"applications":[]}