The purpose of this ASHRAE standard is to establish the minimum energy efficiency requirements of building design and construction, other than low-rise residential buildings. Read more about the International Energy Conservation Code (IECC), the standard that covers low-rise residential construction. Standard 90.1 has been a benchmark for commercial building energy codes in the United States and a key basis for codes and standards around the world for more than 35 years. This standard provid...

The International Energy Conservation Code (IECC) is a part of the international family of codes (I-codes) published by the International Code Council (ICC). The suite of codes, including the energy code, is updated every three years to incorporate current technologies, costs, and practices. It is available for adoption and use by jurisdictions internationally. It is within a governmental jurisdiction and is intended to be accomplished through adoption by reference in accordance with proceedin...