The U.S. Conference of Mayors passed a resolution endorsing a draft of the International Green Construction Code being developed by the International Code Council.
The code incorporates ASHRAE Standard 189.1 as an optional path to compliance. The American Institute of Architects (AIA)ASTM International and other construction and engineering organizations are providing input into the code, which includes energy, water, air-quality and safety benchmarks that states and cities can adopt as mandatory provisions of commercial buildings in their jurisdictions.
The code is currently in a public-comment period and is scheduled for release in November. The code will join ICC plumbing, mechanical and residential building codes.
"It's really meant to create a green floor, the base requirements that can be enforced and have the weight of the law behind them," said Jessyca Henderson AIA's director of sustainability advocacy.
Making buildings more energy efficient, with the ultimate goal of zeroing their consumption of fossil fuels, could save the U.S. up to $140 billion a year, according to the mayors' resolution.