Sustainability Advisory Board Agenda and Packet 2023 06 21

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Sustainability Advisory Board Minutes May 17, 2023 Page 5of8 Downtown commercial buildings are not subject to trespass limitations, but curfew limitations still apply to them • "Trespass" is impact of light on another property - just because you can see the light from your property doesn't make it a trespass, but if the light illuminates someone else's property, then that counts as trespass • Louisville already has trespass regulations for commercial and residential lights onto open space • Curfew on unshielded low -lumen lights Public Comment Michiko Christiansen: Resident asked how motion -censored lights are impacted and how the city's Christmas lights are impacted by this ordinance. LSAB Discussion Amelia began by answering the public comment questions. Motion censored lights can only be on for 5 minutes and there is a lumen cap. Light would still need to be in compliance with other parts of the ordinance (e.g. be down -lit). She explained that holiday lights are exempted with limitations (e.g. blink lights are not allowed on commercial properties), but there is no curfew. The City is proposing a year-round exemption for holiday lighting. John began the discussion by noting that incentives would be very valuable, especially if people know they are time -limited. He asked if parking lot owners could just change the fixture at the top or put a cover over it instead of retrofitting the entire parking lot. Amelia responded that it's easy to add a backshield or change the fixture for some types of lights but not for all. He asked about the rules for baseball fields and she replied that baseball fields abide by different rules than what the ordinance would cover. Josh suggested the ordinance recommend that people choose lights at a low lumen level —just because they can choose lights up to a certain lumen doesn't mean everyone should choose the brightest light possible. He asked why the City doesn't want to recommend compliance options 2 and 3. Amelia responded that the City would rather focus on tiered amortization (option 3) than split their time