A TPO is made by a local planning authority (usually a local council) to protect specific trees or a particular area, group or woodland from deliberate damage and destruction if those trees are important for the amenity of the area.
A Tree Preservation Order (TPO) is issued by a local government body (typically a city council) to protect particular trees or a specific area of land that contains trees, from being damaged or destroyed. This protection is given because these trees are considered important for the overall beauty and enjoyment of the surrounding environment.