Energy Standard for Buildings Except Low-Rise Residential Buildings
States now must certify that their building codes meet the requirements in ASHRAE’s 2004 energy efficiency standard, under a ruling issued by the United States Department of Energy (DOE) that finds the standard saves more energy than an earlier version.
ANSI/ASHRAE/IESNA Standard 90.1-2004, Energy Standard for Buildings Except Low-Rise Residential Buildings, has been established by the DOE as the commercial building reference standard for state building energy codes under the federal Energy Policy Act.
The Act requires all states to certify that they have state energy codes in place that are at least as stringent as 90.1-2004, or justify why they cannot comply.
More Information
The following links will take you to details on the lighting related issues within the ASHRAE 90.1 energy code:
For narrated training on the lighting related requirements of 90.1-2007, click here.