Creates the State Building and Residential Codes Act. Provides that the Capital Development Board, in consultation with the Department of Natural Resources, shall adopt a Building Code that establishes minimum requirements for the construction of commercial buildings, that shall apply to the construction of, renovations to, and additions to all commercial buildings in the State. Provides that the Board, in consultation with the Environmental Protection Agency, shall also adopt a Residential Code as the minimum and maximum requirements for the construction of residential buildings, that shall apply to the construction of, renovations to, and additions to all residential buildings in the State. Contains provisions concerning applicability; technical assistance; enforcement; rules; input from interested parties; and a prohibition on grants. Preempts home rule powers. Amends the Capital Development Board Act to make conforming changes. Repeals the Illinois Residential Building Codes Act. Effective immediately.
Senate Committee Amendment No. 1: In provisions concerning technical assistance, provides that the Capital Development Board (rather than the Department of Natural Resources) shall provide technical assistance and training concerning the Building Code and the Residential Code.
Senate Committee Amendment No. 2: Replaces everything after the enacting clause. Amends the Capital Development Board Act. In provisions about occupying a newly constructed commercial building in a non-building code jurisdiction, modifies the standards by which a qualified inspector must file a certification of inspection with a municipality. Provides that, once a building permit is issued or construction begins when no building permit is needed, the code in effect on January 1 of that calendar year applies for the duration of the permit or construction. Modifies provisions limiting applicability, modifies definitions, and makes other changes. Modifies how municipalities with a population of less than 1,000,000 and all counties must identify local building codes. Amends the Illinois Residential Building Code Act to make conforming changes.
Senate Floor Amendment No. 4: Provides that provisions concerning certification for inspection shall apply to a substantially improved commercial building. Provides that specified amendatory changes to the Capital Development Board Act shall apply beginning January 1, 2025 (rather than July 1, 2024). Defines "substantial damage" and "substantially improved commercial building". Makes other changes.

Statutes affected:
Introduced: 20 ILCS 3105/10
Engrossed: 20 ILCS 3105/10, 815 ILCS 670/10, 815 ILCS 670/15
Enrolled: 20 ILCS 3105/10, 815 ILCS 670/10, 815 ILCS 670/15
Public Act: 20 ILCS 3105/10, 815 ILCS 670/10, 815 ILCS 670/15