A unified green building code that could become the foundation for LEED certification was created in 2011, thanks to a partnership among ASHRAE, the International Code Council (ICC), the American Institute of Architects (AIA), the Illuminating Engineering Society (IES), and the U.S. Green Building Council (USGBC).
That effort got a boost in August 2014, when ICC and ASHRAE agreed to align the technical requirements of ASHRAE’s Standard 189.1 for High Performance Green Buildings (189.1) with ICC’s International Green Construction Code (IgCC) into one single model code.
With that agreement, and with the subsequent definition of each organization’s roles, the ASHRAE Standard 189.1 committee continued revising the standard so it could provide technical content for the IgCC, with the ICC responsible for the administrative sections and publication.
This integrated document, coined the “IgCC powered by 189.1,” will become the 2018 version of the IgCC (2018-IgCC), due to be published in summer 2018.
