Dark Sky Rules: Lancaster vs Pomona
How do dark sky rules rules compare between Lancaster, CA and Pomona, CA?
Pomona has fewer restrictions than Lancaster.
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 →Pomona, CA
Los Angeles County
Pomona does not have a specific dark-sky ordinance. General light nuisance provisions in the municipal code may apply. Outdoor lighting for new development is reviewed through the planning process.
View full Pomona rules →Key Facts Comparison
| Fact | Lancaster | Pomona |
|---|---|---|
| Fixtures | Fully shielded required | - |
| Direction | Downward only | - |
| Color Temp | 3000K or below preferred | - |
| Topic | Dark Sky Rules | - |
| Dark-Sky Ordinance | - | None specific to Pomona |
| New Development | - | Lighting reviewed in planning |
| Nuisance | - | General nuisance code may apply |
| State | - | No CA statewide dark-sky mandate |
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.
Pomona 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 Pomona code enforcement if outdoor lights from adjacent properties create a nuisance.
Compare other topics
See how Lancaster and Pomona compare on other ordinance categories.
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