The University of Washington recently scored a spot on the Princeton Review’s 2019 Green College Honor Roll. According to UW’s website, information submitted to the review included all three of the school’s campuses —  Seattle, Tacoma, and Bothell.

Of 648 schools reviewed, only 26 achieved the highest possible score of 99, the necessary rating to appear on the list. Other colleges that made the list alongside UW include: Seattle University, University of Oregon, Stanford University, and University of Colorado.

The Princeton Review’s Green Rating system is based on factors, like whether students have access to mass transit programs — like bike or car sharing — whether recently-renovated or recently-constructed buildings are LEED certified, whether the college offers concentrations in environmental studies, and how much of the college’s energy consumption is derived from renewable resources.