Artificial intelligence (AI) policy: ASHRAE prohibits the entry of content from any ASHRAE publication or related ASHRAE intellectual property (IP) into any AI tool, including but not limited to ChatGPT. Additionally, creating derivative works of ASHRAE IP using AI is also prohibited without express written permission from ASHRAE.

logoShaping Tomorrow's Built Environment Today

Codes, Standards Developers Align Guidelines To Create Sustainable, High-Performance Buildings

  • 23 Feb 2015
  • Washington

Codes, Standards Developers Align Guidelines To Create Sustainable, High-Performance Buildings

WASHINGTON (February 23, 2015) - Several leading associations that develop codes and standards to create green buildings are collaborating to align the International Green Construction Code (IgCC), ANSI/ASHRAE/IES/USGBC Standard 189.1 and the LEED green building program. The initiative is being welcomed by code officials, architects, engineers and contractors.

“In just a few years we progressed from developing the first model code for green buildings to a new cooperative document that will make it easier for owners, designers, builders and code officials to deliver sustainable, high-performing buildings,” said International Code Council (ICC) Chief Executive Officer Dominic Sims, CBO. “Thank you to our cooperating sponsors, ICC Members and all who participate in the development of the International Green Construction Code for their support.”

Cooperating sponsors in the development of the IgCC are ASHRAE, the American Institute of Architects (AIA), the Illuminating Engineering Society of North America (IES) and the U.S. Green Building Council (USGBC). All have agreed to collaborate on the development of the next edition of the IgCC, ASHRAE Standard 189.1 and the USGBC LEED green building program.

“We are working to align new versions of Standard 189.1—the Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings—and the IgCC into one regulatory tool,” said ASHRAE President Tom Phoenix. “This agreement also seeks to align the LEED program with the new code to ensure a streamlined, effective set of regulatory and above-code options for jurisdictions across the country.”

Standard 189.1 will continue to be produced as an American National Standards Institute consensus standard and then delivered to ICC to wrap in to its code-compliance frame and position it for adoption as a building code by states and municipalities.

“Sharing resources will help reach the goal of environmentally friendly structures that reduce the carbon footprint and lessen energy consumption,” said ICC Board of Directors President Guy Tomberlin, CBO. “With increased demand for sustainable buildings, this joint effort will have a major impact on creating more green buildings.”

The technical content of the IgCC will consist of the mandatory, prescriptive and performance-based requirements developed for Standard 189.1; an updated standard will be produced every three years to complement the three-year code cycle.

"With the consolidation of the IgCC and Standard 189.1, and coordination with the LEED rating system, the AIA's goal to achieve a single set of regulations makes a critical step forward, while also providing a clearer path toward a sustainable built environment,” said AIA CEO Robert Ivy, FAIA.

IES Director of Technology Rita Harrold said, “Different partners have different strengths. Our organizations working together will result in harmonization of technical, administrative and compliance expertise to produce a single green code, simplifying the choice among design and code options for the using community.”

“This partnership leverages the unique strengths of world class organizations collaborating in an unprecedented way,” said USGBC Chief of Engineering Brendan Owens. “Building designers and operators know the benefits of integrated design and planning very well—we’ve taken our cue from them and will create a system where the whole is substantially more effective than the sum of its individual parts.”

Members of a committee working to complete the collaboration of the IgCC, Standard 189.1 and LEED green building program were recognized for their hard work by Phoenix at ASHRAE’s 2015 Winter Conference, including Sims, Harrold, Owens, ICC Senior Vice President of Technical Services Tom Frost, ICC General Counsel Mel Oncu, AIA Managing Director Policy & Community Relations Jessyca Henderson, AIA Codes & Standards Consultant Dave Collins, ASHRAE Treasurer Tim Wentz, ASHRAE Presidential Member Ron Jarnagin, SSPC 189.1 Chair Andy Persily, ASHRAE Executive Vice President Jeff Littleton and ASHRAE Director of Technology Claire Ramspeck.

ASHRAE, founded in 1894, is a global society advancing human well-being through sustainable technology for the built environment. The Society and its more than 56,000 members worldwide focus on building systems, energy efficiency, indoor air quality, refrigeration and sustainability. Through research, standards writing, publishing, certification and continuing education, ASHRAE shapes tomorrow’s built environment today. More information can be found at