hosts post-secondary student field courses and professional development programs, and also serves as a university outreach facility for the whole region. Close to Algonquin and Arrowhead Provincial Park, the centre's facilities are used for research in ecological restoration and conservation. Sustainability Sustainability initiatives are divided between several departmental offices at the university, with the university's plant operations charged with their implementation. Prior to 2005, the management of sustainability efforts was conducted by the university's waste management coordinator. The university's sustainability initiatives are solely institution-specific, as it has not signed any national or international sustainability declaration. However, the university, along with the other members from the Council of Ontario Universities, signed a pledge in 2009 known as Ontario Universities Committed to a Greener World, with the objective of transforming its campus into a model of environmental responsibility. The university's School of Environment, Enterprise and Development placed first in Canada in the Corporate Knights 2011 ranking for undergraduate business programs incorporating sustainability. The university campus received a C+ grade from the Sustainable Endowments Institute on its College Sustainability Report Card for 2011. In 2021, the University of Waterloo was ranked 99th in the world, and 15th in Canada in Times Higher Education University Impact Rankings, a ranking that evaluated 1,115 universities from 94 countries/regions against the United Nations’ Sustainable Development Goals. A dramatic drop from 2020's ranking of 16th in the world. Waterloo's Institute for Nanotechnology is Canada's largest nanotechnology institute committed to the UN Sustainable Development Goals. Administration The university operates under a bicameral system of a board of governors and a senate, as legislated by the University of Waterloo Act, 1972. The Board of Governors has responsibility for the university's properties, affairs, and income. The University of Waterloo Act calls for only 36 members, each of whom must hold Canadian citizenship. However, the number of members in the board for the 2013–2014 academic year is 40. The Board has five ex officio members, including the university's chancellor and president, and the mayors of Kitchener and Waterloo. The other 32 members of the board are either elected or appointed by the various members of the university community, including alumni, faculty, and student body. The senate establishes the educational policies of the university and makes recommendations to the board of governors in the management of the institution. The senate has 24 ex officio positions, including the university's president and chancellor, the vice-presidents,