Dark Sky Rules: Lancaster vs Los Angeles
How do dark sky rules rules compare between Lancaster, CA and Los Angeles, CA?
Lancaster and Los Angeles have similar restriction levels.
Lancaster, CA
Los Angeles County
Lancaster regulates outdoor lighting to reduce light pollution and glare. Fully shielded fixtures required for new installations. Lighting must be directed downward and not trespass onto neighboring properties.
View full Lancaster rules →Los Angeles, CA
Los Angeles County
Los Angeles Municipal Code §93.0108 caps new outdoor LED fixtures at 3000K, requires full shielding, and limits trespass to 0.5 foot-candles at residential property lines. The ordinance applies citywide to new installations, replacements, and permitted remodels but exempts pre-existing fixtures and emergency lighting.
View full Los Angeles rules →Key Facts Comparison
| Fact | Lancaster | Los Angeles |
|---|---|---|
| Fixtures | Fully shielded required | - |
| Direction | Downward only | - |
| Color Temp | 3000K or below preferred | - |
| Topic | Dark Sky Rules | - |
| - | - |
Highlighted rows indicate differences between cities.
Lancaster FAQ
What does fully shielded mean?
The fixture must direct all light downward with no light emitted above the horizontal plane. This prevents glare and sky glow while still providing ground illumination.
Can my neighbor's lights shine into my yard?
Most codes prohibit light trespass onto neighboring properties. Contact Lancaster code enforcement if outdoor lights from adjacent properties create a nuisance.
Los Angeles FAQ
Do I need to replace my existing lights?
No. Pre-existing fixtures are grandfathered. Replacements, new permits, and tenant improvements that touch the electrical system must comply with §93.0108.
Are holiday lights exempt?
Yes. Temporary seasonal lighting is exempt November 15 to January 15 if pointed downward.
What color temperature is allowed?
New outdoor LEDs are capped at 3000K. Warm-white 2700K is recommended for hillside and residential areas.
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