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LEED Description

The Leadership in Energy and Environmental Design (LEED)

Green Building Rating System, developed by the U.S. Green Building Council, provides a suite of standards for environmentally sustainable construction. Its inception was in 1998, LEED has grown to encompass over 14,000 projects in 50 US States.

The hallmark of LEED is that it is an open and transparent process where the technical criteria proposed by the LEED committees are publicly reviewed for approval by the more than 10,000 membership organizations that currently constitute the USGBC.

Different LEED versions have varied scoring systems based on a set of required "Prerequisites" and a variety of "Credits" in the six major categories listed below.

Sustainable sites
Water efficiency
Energy and atmosphere
Materials and resources
Indoor environmental quality
Innovation and design process

Different LEED versions have varied scoring systems based on a set of required "Prerequisites" and a variety of "Credits" in the six major categories listed above. In LEED v2.2 for new construction and major renovations for commerical buildings there are 69 possible points and buildings can qualify for four levels of certification:
Certified - 26-32 points (non-innovation points)

Silver - 33-38 points

Gold - 39-51 points

Platinum - 52-69 points