New for LEED 2009, the LEED Reference Guide for Green Building Design and Construction is published by the U.S. Green Building Council (USGBC) and includes detailed information on the LEED certification process, detailed credit and prerequisite information, resources and standards for the LEED 2009 building design and construction rating systems. This reference guide is a unique tool for new construction project teams implementing sustainable practices. It provides guidance for each of the three LEED 2009 building design and construction rating systems: LEED for New Construction and Major Renovations, LEED for Schools New Construction and Major Renovations and LEED for Core & Shell Development.