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ANSI/ASHRAE/USGBC/IES Standard 189.1-2009

Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings

Provides minimum criteria that apply to the following elements of building projects: new buildings and their systems; new portions of buildings and their systems; new systems and equipment in existing buildings; address site sustainability, water use efficiency, energy efficiency, indoor environmental quality (IEQ), and the building's impact on the atmosphere, materials, and resources.

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American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ASHRAE]


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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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