Glossary | U.S. Green Building Council
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materials: the reemployment of materials in the same or a related capacity as their original application, thus extending the lifetime of materials that would otherwise be discarded. Reuse includes the recovery and reemployment of materials recovered from existing building or construction sites. Also known as salvage.

water: the practice of using water that has already been used. The terms reclaimed water, reused water, and recycled water are used interchangeably in the water industry.