The International Energy Conservation Code (IECC) is a building energy code created by the International Code Council. It is a model code adopted by many state and municipal governments in the United States for the establishment of minimum design and construction requirements for energy efficiency, and is updated on a three-year cycle. The baseline energy conservation requirements of the Massachusetts State Building Code are the IECC with Massachusetts amendments, as approved by the Board of Building Regulations and Standards and published in state regulations as part of 780 CMR.
Codified by the entirety of 225 CMR 22 and 23 including Appendices RC and CC, the Specialized Energy Code is an appendix to the Massachusetts Stretch Energy Code, based on further amendments to the International Energy Conservation Code (IECC) to improve the energy efficiency and reduce the climate impacts of buildings built to this code.
Codified by the combination of 225 CMR 22 and 231, not including Appendices RC and CC, the Stretch Energy Code is a comprehensive set of amendments to the International Energy Conservation Code (IECC) seeking to achieve all lifecycle cost-effective energy efficiency in accordance with the Green Communities Act of 2008,[1] as well as to reduce the climate impacts of buildings built to this code.
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Editor's Note: See Chapter 169 of the Acts of 2008.