2 county-level rules, plus city-specific rules for 1 city in Philadelphia County, Pennsylvania.
Verified from official government sources
Philadelphia has no dark-sky ordinance. Outdoor lighting in commercial districts governed by Zoning Code §14-706 performance standards (no direct glare onto adjacent property).
Philadelphia Zoning §14-706 requires lighting be shielded and not cast glare onto adjacent property. Nuisance complaints handled by L&I through 311.
1 cities in Philadelphia County have their own outdoor lighting rules. Each link goes to that city's dedicated page with code citations.
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