Adecade after Congress passed the Energy Policy Act of 1992, the U.S. Dept. of Energy (DOE), acting on its authority granted by the bill, designated ASHRAE/IESNA Standard 90.1-1999, Energy Standard for Buildings Except Low-Rise Residential Buildings, as the national energy standard. (The DOE determined that Standard 90.1-1999 saved up to 6% more energy than the previous Standard 90.1-1989 in the
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