Dark Sky Rules: Palm Springs vs Riverside
How do dark sky rules rules compare between Palm Springs, CA and Riverside, CA?
Riverside has fewer restrictions than Palm Springs.
Palm Springs, CA
Riverside County
Palm Springs has one of California's strongest dark-sky outdoor lighting ordinances under PSMC Chapter 93.21. All outdoor fixtures must be fully shielded with cutoff optics, use 3000K or lower color temperature LEDs, meet strict lumen caps per property, and avoid light trespass. The goal is to preserve views of Mt. San Jacinto, protect wildlife, and maintain the starry desert sky.
View full Palm Springs rules →Riverside, CA
Riverside County
Riverside's municipal code includes outdoor lighting standards designed to reduce light pollution and protect the night sky. Riverside County Ordinance 915 establishes requirements for shielded fixtures and limits on upward light emission. New development in the city must submit lighting plans showing fully shielded, downward-directed fixtures. The proximity of Mount Palomar Observatory has historically influenced lighting regulations in the region.
View full Riverside rules →Key Facts Comparison
| Fact | Palm Springs | Riverside |
|---|---|---|
| - | - | |
| County Ordinance | - | Ordinance 915 — outdoor lighting standards |
| Shielding | - | Fully shielded fixtures required for new development |
| Light Direction | - | Downward-directed only |
| Palomar Influence | - | Observatory proximity affects regional standards |
| Plan Review | - | Lighting plans required with development |
Highlighted rows indicate differences between cities.
Palm Springs FAQ
Riverside FAQ
Does Riverside have dark-sky lighting rules?
Yes, Riverside County Ordinance 915 establishes outdoor lighting standards to reduce light pollution. The city requires new development to use fully shielded, downward-directed fixtures. The Mount Palomar Observatory's proximity has influenced regional lighting standards.
What type of outdoor lights are required in Riverside?
New development must use fully shielded fixtures that direct light downward. Upward light emission is restricted. Lighting plans are reviewed as part of the development permit process.
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