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Standard 189.1

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ANSI/ASHRAE/IES/USGBC Standard 189.1-2014, Standard for the Design of High-Performance Green Buildings


Standard 189.1 provides total building sustainability guidance for designing, building, and operating high-performance green buildings. From site location to energy use to recycling, this standard sets the foundation for green buildings by addressing site sustainability, water use efficiency, energy efficiency, indoor environmental quality (IEQ), and the building's impact on the atmosphere, materials and resources.

Standard 189.1 is a compliance option of the International Green Construction CodeTM (IgCC).


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COMING IN 2018 - IgCC Powered by 189.1

Partnering organizations USGBC, ASHRAE, ICC, AIA and IES are currently developing a new green code to provide a whole systems approach to the design, construction and operation of buildings. Projected release date is Spring 2018.

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About Standard 189.1

The standard provides minimum requirements for siting, design, construction, and operation of high-performance   green buildings to (1) balance environmental responsibility, resource efficiency, occupant comfort and well being,   and community sensitivity, and (2) support the goal of development that meets the needs of the present without   compromising the ability of future generations to meet their own needs. This standard provides minimum criteria   that apply to new buildings and their systems, new portions of buildings and their systems, and new systems and   equipment in existing buildings.

The provisions of this standard do not apply to single-family houses, multi-family structures of three stories or fewer above grade, manufactured houses (mobile homes) and manufactured houses (modular), or buildings that use none of the following: electricity, fossil fuel, or water.

 189.1 Training, Courses and Seminars
 Preview 189.1-2014

Superseded Editions of 189.1

Have a question about Standard 189.1?

Send an email to or call 404-636-8400 and ask for Connor Barbaree, Manager - Codes or Steve Hammerling, Manager - American Standards.

ASHRAE staff will attempt to respond with an unofficial response within one business day. If you wish to request a formal technical interpretation from SPC 189.1, instructions can be found here.

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