The creation of the ICC 700 National Green Building Standard™ was initiated by the National Association of Home builders (NAHB) and the International Code Council (ICC) to offer a national rating system and standard definition for green building. This building standard has received approval from the American National Standards Institute (ANSI), indicating it was developed through an open, consensus-based process with representative stakeholder participation and ample opportunity for public comment. The standard defines green building for single – and multifamily homes and residential remodeling, and land development.
There are four performance point levels: bronze, silver, gold, and emerald. The threshold level (bronze) results in an energy savings approximately 15 percent above code requirements for the 2008 version of the standard. To achieve higher performance levels, the home must meet minimum performance points in each of six categories:
• Lot design, preparation, and development
• Resource efficiency
• Energy efficiency
• Water efficiency
• Indoor environmental quality
• Operation, maintenance, and building owner education
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