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FAQs about SSc8 :

If we have exterior lighting fixtures over 50 watts with occupancy sensors, can these fixtures be excluded from the shielding requirements of Option 2?

How do you treat lighting in the covered portion of an exterior parking garage? Do you follow the interior lighting requirements or the exterior lighting requirements?

Are we required to include city-owned and controlled lighting with our exterior lighting fixtures?

We’re pursuing Option 3 for exterior lighting and the difference in illumination is greater than 20% so we don’t comply. In this case, can we pursue the illumination requirements for the applicable lighting zone (similar to LEED-NC)? For example if we

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EBOM-2009 SSc8:Light Pollution Reduction

Option 3 - Light Measurments vs Zone Requirements

When finding the difference between light measurements when fixtures are on and off, if the difference is above 20% but the footcandle measurement is below the Maximum Illumination Value for the type of lighting zone does it still comply? For example, if we were in LZ 4 where the maximum is .6 and we got a measurement of .3 with lights off and .4 with lights on (33% difference). Would it be acceptable if one of the requirements is met or does the compliance path have to follow one of the options?

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