The Sustainability Tracking, Assessment & Rating System, otherwise known as STARS, is a self-reporting framework for colleges and universities to measure their sustainability performance. This is a program created by the Association for the Advancement of Sustainability in Higher Education, or AASHE. Categories that can be measured include: Institutional Characteristics, Academics, Engagement, Operations, Planning & Administration and Innovation. Each category has subcategories that go into further details. View the University of Missouri’s Gold Star rating.