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In 2014, the International Code Council published the 2015 International Energy Conservation Code (IECC), a model residential and commercial building energy code. ICC states: “This code shall regulate the design and construction of buildings for the use and conservation of energy over the life of each building.” The IECC is not a code in itself but instead a template that states and other jurisdictions may use this model in whole or in part for their own energy codes. First published in 1998, the IECC was updated in 2000, 2003, 2006, 2009, 2012, and 2015.