Streamlining Green Buildings: USGBC, ASHRAE, ICC, IES, and AIA Collaborate on a Single Code

IGCC

 

In an unprecedented commitment to cooperation, the International Code Council (ICC), U.S. Green Building Council (USGBC), American Institute of Architects (AIA), Illuminating Engineering Society of North America (IES), and ASHRAE are collaborating on the next editions of the International Green Construction Code (IgCC), ASHRAE Standard 189.1, and the LEED standard.

The organizations say the effort should encourage the construction of more sustainable buildings. 

“Different partners have different strengths,” says IES director of technology Rita Harrold. “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.”

ASHRAE is revising Standard 189.1, the Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings. The goal is to incorporate it with IgCC into one regulatory tool. Another goal is to align that document with LEED. The effort will make compliance and building to green standards easier, the groups say.

The ICC, along with cooperating sponsors AIA and ASTM International, develops the model code for green buildings. The code is intended to be administered by code officials and adopted by governments at any level on a mandatory basis.

The LEED program will also be revised to more closely align with the other groups’ codes and standards.

 

Related Articles


Latest Articles

  • What 2025 Revealed About Canada’s Electrical Industry

    What 2025 Revealed About Canada’s Electrical Industry

    December 16, 2025 By Carol McGlogan, President & CEO, Electro-Federation Canada The past year required Canada’s electrical industry to adapt to a rapidly changing environment. In 2025, businesses across the value chain navigated shifting trade conditions, evolving policy landscapes, and growing expectations tied to electrification and infrastructure expansion. Trade uncertainty introduced new complexity. Organizations reassessed Read More…

  • Considerations for EV Charging Installation and Site Preparation

    Considerations for EV Charging Installation and Site Preparation

    December 15, 2025 By Blake Marchand As part of our recent discussion with LEDVANCE EVSE Product Manager, Erich Bockley, he emphasized the importance of site preparation Site preparation can be the most complicated part of the project, Bockley emphasized, a lot needs to be considered before the installation work begins. Many public charging applications will Read More…

  • Ontario’s Multi-Family Component Leads Residential Sector Increases in October Building Permits

    Ontario’s Multi-Family Component Leads Residential Sector Increases in October Building Permits

    December 15, 2025 In October, the total value of building permits issued in Canada rose $1.8 billion (+14.9%) to $13.8 billion. The increase in construction intentions was led by the residential sector (+$1.1 billion). An increase was also observed in the non-residential sector (+$702.8 million). On a constant dollar basis (2023=100), the total value of building permits issued in Read More…

  • Residential Investment in Building Construction Declines in September

    Residential Investment in Building Construction Declines in September

    December 15, 2025 Overall, investment in building construction decreased 1.1% to $22.4 billion in September. Investment in the residential sector declined 1.7%, while that in the non-residential sector was virtually unchanged. Year over year, investment in building construction grew 6.0% in September. On a constant dollar basis (2023=100), the total value of investment in building construction in September decreased 1.4% Read More…


Changing Scene