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Suffolk County, NY Outdoor Lighting: Dark Sky Rules (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Adopted
L.L. No. 26-2004
Applies to
County-owned facilities only
Requirement
Fully shielded luminaires
Current color cap
2,200 Kelvin maximum
Enforced via
County procurement specifications

Summary

Suffolk County requires new and replacement outdoor light fixtures on county-owned buildings, parking lots and docks to be fully shielded and capped at 2,200 Kelvin, but the rule only binds county government, not private property.

City-specific rules exist: Babylon, Huntington, and Islip have their own dark sky rules rules that differ from Suffolk County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

When purchasing new or replacement lighting, all County departments shall include a specification in a solicitation for the purchase of any permanent outdoor luminaire that requires the provider to offer for sale to the County of Suffolk only luminaires that 1) are fully shielded and 2) use lamps with a correlated color temperature no higher than 3500 Kelvin for all lamps purchased through December 31, 2015...

Source: Southampton LightingView official code

Full Breakdown

Chapter 149 of the Suffolk County Code (Local Law No. 26-2004, amended 2013 and 2022) requires every County department buying new or replacement outdoor luminaires for County buildings, parking lots, docks and other County infrastructure to specify fixtures that are fully shielded and rated no higher than 2,200 Kelvin. Historic/decorative fixtures, sports facilities, airports, and safety-driven exceptions approved by the Commissioner of Public Works are exempt. The law binds only Suffolk County government's own facilities: it sets no shielding, brightness, or color-temperature standard for homes or businesses. Private outdoor-lighting rules in Suffolk County, if any, are set by the individual town or village that zones the property, such as Babylon or Huntington.

Violations & Fines

No fine or citation applies to residents. Chapter 149 is a procurement standard for County departments, enforced through purchasing specifications and the Commissioner of Public Works, not code enforcement against property owners.

Frequently Asked Questions

Does Suffolk County limit outdoor lighting on private property?
No. Chapter 149 of the county code only covers lighting purchased and installed by Suffolk County government: county buildings, parking lots and docks. Homes and businesses aren't covered; check your town or village zoning code instead.
What shielding standard must County lighting meet?
New and replacement outdoor luminaires on County facilities must be fully shielded, directing all light downward, and, for fixtures bought after July 27, 2022, rated no higher than 2,200 Kelvin.

Sources & Official References

Other rules in Suffolk County

All Suffolk County rules

New York rules heatmap·Compare Suffolk County to another location·View the New York outdoor lighting overview

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Dark Sky Rules in Cities Across Suffolk County