The Association for the Advancement of Sustainability in Higher Education recognized OSU’s achievements in Campus Engagement and Grounds in their 2015 Sustainable Campus Index.

The 2015 Sustainable Campus Index highlights top-performing colleges and universities in 17 areas, as measured by the Sustainability Tracking, Assessment & Rating System (STARS). The Sustainability Tracking, Assessment & Rating System (STARS) is a transparent, self-reporting framework for colleges and universities to measure their sustainability performance. As of October 2015, there were 725 STARS participants in 24 countries, which included reports from 359 institutions in 9 countries.

OSU achieved 100% of points for Campus Engagement, which recognizes institutions that provide students with sustainability learning experiences outside the formal curriculum, and support employee engagement, training, and development in sustainability.

OSU achieved 98.3% of points in Grounds, which recognizes institutions that plan and maintain their grounds with sustainability in mind by minimizing the use of toxic chemicals, protecting wildlife habitat and conserving resources.