US Green Specifications for Indoor Fixtures and Appliances
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Various “green” standards and guidelines exist for plumbing fixtures and appliances beyond the US National Standards. These standards and guidelines may be part of voluntary programs such as WaterSense® Single-Family New Homes and USGBC LEED for Homes, or codes such as the IAPMO Green Plumbing and Mechanical Code Supplement and the ICC International Green Construction Code. The linked PDF contains information on specifications for a variety of standards, codes, and voluntary initiatives. (August, 2019) 