Related Links: Skanska Quits U.S. Chamber of Commerce Over Anti-LEED Lobbying ENR's 2013 Top Green Design Firms Tumult Grows Over LEED Rating System Update An Uphill Battle Against LEED-Based Codes Skaska USA CEO: Don't Let Green Standards Wither LEED version 4 has been approved by a vote of U.S. Green Building Council (USGBC) members, with 86 percent of the voting body voting in the affirmative. Approval of LEED v4 as the next version of the LEED Rating System clears the way for its launch during the Greenbuild conference in November 2013.The landmark vote, in which more than 1,200 USGBC member