Illinois Enacts Commercial Energy Building Code

August 13, 2004

Illinois Governor Rod Blagojevich recently signed House Bill 4099 creating the Illinois Energy Efficiency Commercial Building Act. The new law requires the state to draft and enforce its first statewide energy efficiency code, and the Illinois Capital Development Board (CDB) and the Department of Commerce and Economic Opportunity (DCEO) will work in conjunction to implement the legislation. The requirements include the development of a statewide energy efficiency code for all new commercial buildings and all commercial buildings undergoing renovations, alterations, repairs or construction of an addition. CDB will adopt (and possibly modify) the 2000 International Energy Conservation Code (IECC) and its 2001 supplement as the new statewide code for Illinois. The IECC establishes minimum design and installation standards for a building's lighting; windows; walls; roofs; insulation; heating, cooling, and ventilation; and other building systems.

Blagojevich said, "We expect this new, statewide energy efficiency code to not only reduce energy costs but also to reduce air pollution, leading to a healthier state for all of us." DCEO will provide energy code education programs for local government code officials and for building designers, engineers, and contractors. For more information, see the governor's August 13 press release.