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The U.S. General Services Administration (GSA), which serves as the purchasing arm of the U.S. government, now requires Gold Level certification to the NSF/ANSI 140 Sustainability Assessment for Carpet for all broadloom and carpet tile purchased through the GSA. Current GSA carpet suppliers have until Jan. 1, 2012, to certify their products to NSF/ANSI 140 Gold Level in order for their carpets to be considered for purchase through the GSA.