The Town of Hilton Head Island incorporated as a municipality in 1983 and is well known for its eco-friendly development. The town's Natural Resources Division enforces the Land Management Ordinance which minimizes the impact of development and governs the style of buildings and how they are situated amongst existing trees. As a result, Hilton Head Island enjoys an unusual amount of tree cover relative to the amount of development. Approximately 70% of the island, including most of the tourist areas, is located inside gated communities. However, the town maintains several public beach access points, including one for the exclusive use of town residents, who have approved several multimillion-dollar land-buying bond referendums to control commercial growth.