Duluth UDC § 303.05

a. All outdoor lighting, unless otherwise exempt; on private, residential, commercial, industrial, recreational, or institutional property; shall be aimed, located, designated, fitted, and maintained so as not to present a disabling glare hazard to neighboring owners/residents, drivers or pedestrians or nuisance glare concerns to neighboring properties. b. Directional fixtures such as flood lights, spotlights, and night lights shall be installed or aimed so that they do not shine directly into the window of a neighboring residence, directly into a roadway, or skyward. c. Unless otherwise permitted by the Planning and Development Director, lighting shall be controlled by automatic switching devices such as timers, motion detectors and/or photocells, to extinguish offending sources between nighttime and morning and to mitigate glare and sky-lighting consequences. d. Vegetation screens shall not be employed to serve as the primary means for controlling glare. Rather, such control shall be achieved primarily through the use of cut off fixtures, the appropriate application of 95 | P a g e Article Three. Restrictions on Particular Uses mounting height, wattage, aiming, angle, fixture placement and fixture design, etc. and the additions of shields and baffles as necessary. e. The amount of illumination projected onto a residential use from another property shall not exceed 0.1 vertical foot candle at the property line.