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The Leadership in Energy and Environmental Design, or LEED, program is a green building rating system, designed to help incorporate sustainability elements into the design, construction, and operation of a building.  Created by the United States Green Building Council (USGBC) in 1994, and licensed by the Canadian Green Building Council (CaGBC) in 2003, LEED has evolved with the building industry, expanded into various global markets, and is now considered one of the world’s most popular green building rating systems.

Unlike building codes and standards that set minimum performance thresholds and targets, LEED is voluntary, rewarding projects that go above and beyond the minimum.