Plumbing-Heating-Cooling Contractors Association(PHCC)http://www.phccweb.org
Plumbing Manufacturers Institute(PMI) http://www.pmihome.org
The U.S Green Building Council(USGBC) http://www.usgbc.org
Alliance for Water Efficiency http://www.allianceforwaterefficiency.org
EPA WaterSense http://www.epa.gov/watersense
WaterAid America http://www.wateraidamerica.org/
