, eight buildings on the PSU campus are LEED-certified, two of which are at Platinum status, and the university announced plans for renovations on Neuberger Hall to bring it to LEED certification as well in 2014. Portland State has been named among the most eco-friendly universities in the United States. In addition to the university's eco-conscious architecture and reconstructive work, it has also been recognized for its utilization of mass transit, including light rail, streetcar, and bus systems all central to the campus. It has also been recognized for its abundance of bicycle transportation; in 2013, PSU was ranked one of America's six most bike friendly universities, third to Stanford University and University of California, Davis.