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1. General Lighting Standards. The following requirements shall apply to exterior lighting of any residential, commercial, industrial, or professional development. These requirements are applicable to parking lighting, sign lighting, architectural lighting, safety lighting, and landscaping lighting.

a. Lighting shall be stationary. No lighting shall blink, flash, or be of unusually high intensity or brightness so as to be distracting to motorists or other properties within the vicinity.

b. Lighting shall be shielded or recessed so that direct glare and reflections are contained within the boundaries of the parcel.

c. Light poles shall not be used to display signs of any kind unless approved by the Planning Commission.

d. Neon lights, strings or lines of LED lighting, other electrically activated gas tubing or similar lighting placed around the perimeter of a sign, along a building elevation as building accents, or within a window (where such lighting is intended to be visible from the exterior of the building) is prohibited. Neon tubing may only be allowed to illuminate or outline wording, copy, or logos within a sign face.

2. Signage illumination Limits. As recommended by the Outdoor Advertising Association of America (OAAA) and the International Sign Association (ISA), the following criteria shall be used to determine proper illumination limits for all signs regulated within the T-zone (Travel Influence District) established by LCC 17.52:

a. The illumination of, or light produced by, any sign shall not increase nighttime ambient light levels by more than 0.3 footcandles as measured by an illuminance meter (footcandle meter) placed five (5) feet above the ground and perpendicular to the sign face at a distance determined by the following formula:

b. At the distance determined by the formula in 2(a) above, illuminance levels shall be measured with the sign lighting turned on, and again with the sign lighting turned off. The difference between the illumination measurements taken at the appropriate distance shall not exceed 0.3 footcandles. For digital signs (Electronic Changeable Copy signs) the difference between the on and off illuminance levels shall be measured while displaying:

i. a solid white screen image (for a full color-capable display), and the sign lighting turned off; or

ii. a solid screen image (for a single-color display), and the sign lighting turned off.

3. Upon receiving reasonable written notice from Lindon City, all sign owners shall cooperate with the City in order to test signage illumination limits. (Ord. 2005-12, amended, 2005; Ord. 2002-21, amended, 2002)