The 2010 Indiana Energy Conservation Code is based on ASHRAE Standard 90.1-2007.
Mandatory statewide for Class 1 structures (commercial buildings and residential buildings with three or more dwelling units). The state provides cursory reviews of plans for all new Class 1 buildings and provides field inspections on buildings where no approved local building official exists.
After months of rulemaking and administrative review procedures, the Indiana Fire Prevention and Building Safety Commission completed work on the first substantial commercial energy code update in nearly two decades. Effective May 6, 2010, the 2010 Indiana Energy Conservation Code references ASHRAE Standard 90.1-2007, as amended, for Class 1 structures (commercial buildings and residential buildings with three or more dwelling units). As part of the state’s new rule adoption process, the Rule #09-388 was approved by the Commission in December 2009, adding 675 IAC 19-4 to the Indiana Administrative Code. The rule was approved by the Attorney General and Governor on March 30, 2010 and became effective 30 days after its filing date of April 6, 2010.