Arborists are licensed by the Department of Energy and Environmental Protection. This licensing covers any work to improve the condition of fruit, shade, or ornamental trees by feeding, fertilizing, pruning, trimming, bracing, and treating cavities. Spraying or other application of pesticides to improve tree condition is also covered.
Department of Energy and Environmental Protection
79 Elm Street
Hartford, CT 06106
Phone: (860) 424-3369