ATLANTA — Changes to the purpose and scope that reflect advances in green buildings over the last 10 years have been proposed to the green building standard from ASHRAE, the International Code Council (ICC), the U.S. Green Building Council (USGBC), and the Illuminating Engineering Society (IES).

ASHRAE/IES/USGBC/ICC Standard 189.1, Standard for the Design of High Performance Green Buildings, contains minimum requirements for the siting, design, and construction of high performance green buildings in support of reducing building energy use, resource consumption, and other environmental impacts while maintaining acceptable indoor environments.