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Ordinance 864 Page 2 (5) Any dynamic display sign capable of accessing and utilizing MN Amber Alert technology shall display such messages as they are made available by the MN Dept. of Public Safety or other responsible agency. x(54 All dynamic display signs shall meet the following brightness standards: (a) No sign shall be brighter than is necessary for clear and adequate visibility and no sign shall exceed 500 Nits (candelas per square meter) at night and 7,500 Nits (candelas per square meter) during the day. (b) No sign shall be of such intensity or brilliance as to impair the vision of a motor vehicle driver with average eyesight nor shall such a sign interfere with the driver's operation of a motor vehicle in any way or manner. (c) No sign may be of such intensity or brilliance that it interferes with the effectiveness of an official traffic sign, device or signal. (d) The person owning or controlling a sign with a dynamic display shall adjust the sign to meet the brightness standards according to the City's instructions. The sign owner or operator shall adjust the sign within one (1) hour or as soon as reasonably possible upon notice of non-compliance from the City. (e) All dynamic display signs installed after December 31, 2008, shall be equipped and operated with an ambient light monitor or a mechanism that automatically adjusts the brightness level of the sign in response to light conditions. These signs also shall be equipped with a means to turn off immediately the display or lighting if the sign malfunctions, and the sign owner or operator must turn off the sign or lighting within one(1) hour or as soon as reasonably possible after the City notifies the owner or operator that the sign is not meeting the standards of this Section or Chapter. (f) Subsequent to November 1, 2011, no dynamic display sign shall have the capacity to operate in excess of 7,500 Nits (candelas per square meter). The lamp wattage and luminance level in Nits (candelas per square meter) shall be provided at the time of permit application. Dynamic display sign permit applications must also include a certification from the owner or operator of the sign stating that the sign shall at all times be operated in accordance with City codes. L(11(f) In addition to the brightness standards required above, dynamic display signs shall meet the City's lighting requirements as listed in Section 1103.09 (Glare) of the City Code. c d. The City allows dynamic display signs on on-site freestanding or ground signs subject to Section Chepte 1008.10, subdivision 1 (Ground Signs) of the City Code, the above-mentioned standards for all dynamic display signs, and subject to the following additional conditions: