Only trees 16 inches in diameter (measuring trunk 4 1/2 feet from the ground) require a permit from the Town of Mount Pleasant. Trees that are exempt from a permit are those under 16 inches in diameter. All pine, sweet gum, callary pear, river birch, mimosa, chinaberry, Chinese tallow, camphor tree, and white poplar trees are not protected species unless they are in a buffer, critical area or right-of-way. However, remember to check with your HOA or neighborhood covenants for restrictions.