Penn State has adopted a green building policy and currently has seven LEED-certified buildings on campus: two at the Certified level, three Silver, and two Gold. Since 2000, the university has renovated more than 150,000 square feet for adaptive reuse and, to conserve water, has installed low-flow faucets, showerheads, toilets, and urinals. To manage stormwater, living roofs, porous pavement, and vegetated swales are used.