2 county-level rules, plus city-specific rules for 1 city in Duval County, Florida.
Verified from official government sources
Duval County does not have a countywide dark-sky ordinance. However, Atlantic Beach, Jacksonville Beach, and Neptune Beach (within Duval) enforce sea-turtle lighting restrictions from May 1 to Oct 31 under FL §379.2431 — amber/red wavelengths only, shielded fixtures, visible from the beach.
Jacksonville-Duval Ordinance Code §656.408 addresses exterior lighting spillover — exterior lights shall not exceed 0.5 footcandles at a residential property line. Floodlights and security lights must be shielded and aimed within the property. No specific curfew.
1 cities in Duval County have their own outdoor lighting rules. Each link goes to that city's dedicated page with code citations.
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