Illinois State Certification of Commercial and Residential Building Energy Codes

In compliance with Title III of the Energy Conservation and Production Act (ECPA) of 1976, as amended, this is to certify that the State of Illinois has adopted the Illinois Energy Conservation Code, which consists of the 2012 version of the International Energy Conservation Code (IECC) for low-rise residential buildings (with Illinois specific amendments), as well as ASHRAE Standard 90.1-2010 for nonresidential buildings.

Publication Date: 
Monday, September 23, 2013