It has also been criticized for the phenomenon of "LEED brain" in which the public relations value of LEED certification drives the development of buildings. It lacks climate specificity, and has been criticized for a point system that can encourage inappropriate design choices and make energy conservation the weakest part of the evaluation. LEED is a design tool rather than a performance-measurement tool and focuses on energy modeling rather than actual energy consumption. Studies have found that for-rent LEED office spaces generally have higher rents and occupancy rates and lower capitalization rates. This can include tax credits, zoning allowances, reduced fees, and expedited permitting. federal agencies, state and local governments require or reward LEED certification. LEED Canada has developed a separate rating system for the regulations and climate of that country. Most LEED-certified buildings are located in major U.S. By 2015, there were over 80,000 LEED-certified buildings and over 100,000 LEED-accredited professionals. Green Building Council (USGBC), it includes a set of rating systems for the design, construction, operation, and maintenance of green buildings, homes, and neighborhoods, which aims to help building owners and operators be environmentally responsible and use resources efficiently. Green building certification program used worldwide. Leadership in Energy and Environmental Design ( LEED) is a Grapevines and photovoltaic panels (r.) rely on the sun at Cooper Vineyards in Louisa, Virginia, the first winery on the East Coast and the second in the country awarded Platinum certification by LEED.