American chemical Council You are hereYou are here: Home / American chemical Council USGBC extends LEED registration date to 2016November 30, 2014 - 1:47pmThe U.S. Green Building Council (USGBC) has extended the date when projects must use the new LEED v4 to October 31st, 2016. Tags: LEEDLEED creditsLEED for New Construction and Major RenovationsLEED for SchoolsusgbcAmerican chemical CouncilAmerican Chemistry Councilgreen buildingLEED v4icynenespray foam insulationicynene spray foam insulationgreengreen constructiongreenbuildUS Green Building Council Pages1 2 next › last »