- AASHE is an association of colleges and universities working to create a sustainable future. AASHE’s mission is to empower higher education to lead the sustainability transformation. It provides resources, professional development, and a network of support to enable institutions of higher education to model and advance sustainability in everything they do, from governance and operations to education and research. Unlike other rating or rating systems, this program is open to all institutions of higher education, and the criteria that determine a STARS rating are transparent and accessible to anyone. Because STARS is a program based on credits earned, it allows for both internal comparisons as well as comparisons with similar institutions. For more information about the STARS program, visit stars.aashe.org.