Koichiro Matsuura, Director-General of UNESCO, asserts that education is one of the most effective instruments that society can employ in the effort to adopt sustainable development. This paper is a first effort to explore the degree to which Canadian institutions of higher education, including colleges and universities, have embraced this assertion. It includes the first census of the existing environment/sustainability policies and/or plans of Canadian postsecondary institutions (n = 220), and an examination of the relationships between the existence of an environment/sustainability policy/plan and the presence of other sustainability initiatives on campus. The focus on policies and plans is timely because in public institutions like colleges and universities, actions and practices are determined by policy. The results reveal a number of patterns and insights, including, for example, the influence of provincial legislation on the uptake of policies.