Plainfield, NJ Outdoor Lighting: Dark Sky Rules (2026)

Outdoor lighting regulation across Union County addresses light trespass, glare, and uplight through zoning and building standards, though the county's urban character precludes formal Dark Sky Community designation. Elizabeth Land Development Code Chapter 20.84 requires full cutoff (full shielded, BUG-rated) fixtures for commercial and multi-family lighting, maximum pole heights specified by zone (typically 25-30 ft in commercial, 12-15 ft in parking lot residential adjacency), and prohibits light spillover onto adjoining residential properties beyond 0.5 footcandle at the property line. Westfield Land Use Ordinance §13.03M limits residential exterior lighting lumen output and requires shielding such that no direct glare is visible from neighboring property; the town has specific provisions for athletic field lighting limiting hours to 10 PM. Summit Code Chapter 184 requires shielded fixtures and limits pole heights. Cranford similar. Newark Liberty International Airport airspace compliance requires FAA Part 77 notification for tall lighting structures; obstruction lighting on cranes and towers near EWR must follow FAA Advisory Circular 70/7460. Port Newark-Elizabeth container yard lighting is constrained by FAA coordination. LED color temperature guidance in many Union County municipalities favors 3000K or below to reduce blue light emissions and minimize ecological impact on nocturnal wildlife; Summit and Westfield have both adopted 3000K street light standards. International Dark-Sky Association best practices inform code but no Union County municipality holds formal IDA designation due to urban sky glow from Newark, New York City, and EWR.