ASHRAE Standard 90.1

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. ASHRAE Standard 90.1 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 t...
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IECC Adoption and Development Resources

International energy conservation code
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 proceed...
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Energy Codes 101

What are energy codes? Energy codes are a subset of a broader collection of written legal requirements known as building codes, which govern the design and construction of residential and commercial structures. Building codes protect individuals from substandard living and working conditions by setting minimum standards for acceptable practice. Energy codes address increasing the energy efficiency of building systems. How do they work? Energy codes reference areas of construction such a...
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Regional Energy Efficiency Organizations

As demand for more stringent energy codes grows, so does the complexity of the codes process and the need for a broad coalition of stakeholders. For anyone new to codes, simply identifying the many actors involved can be a daunting task, much less finding opportunities for involvement. Even veteran code experts must stay up-to-date with the changing landscape. Helping in this effort are the multiple Regional Energy Efficiency Organizations (REEOs) that operate on the ground in 46 stat...
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