One of the significant changes to LEED 2009 is the addition of specific Minimum Program Requirements (MPRs) that a project must possess in order to be eligible for LEED certification. These requirements define the types of buildings that the LEED Green Building Rating Systems were designed to evaluate and serve three goals when taken together: give clear guidance to customers, protect the integrity of the LEED program, and reduce complications that occur during the LEED certification process.