Dark Sky Rules: Ontario vs Victorville
How do dark sky rules rules compare between Ontario, CA and Victorville, CA?
Ontario and Victorville have similar restriction levels.
Ontario, CA
San Bernardino County
Ontario regulates outdoor lighting under OMC Chapter 9, requiring shielded fixtures and color temperature limits to reduce glare toward homes and aircraft paths at ONT International Airport.
View full Ontario rules →Victorville, CA
San Bernardino County
Victorville Municipal Code Title 17 requires shielded, downward-directed exterior lighting. Nearby desert astronomy and SCLA airport approaches favor low light pollution. LED color temperatures limited.
View full Victorville rules →Key Facts Comparison
| Fact | Ontario | Victorville |
|---|---|---|
| Fixture type | Full-cutoff shielded | - |
| CCT limit | 3000K | - |
| Curfew dim | 50% after 11 PM (industrial) | - |
| Airport | ALUCP lighting restrictions | - |
| Shielding | - | Full-cutoff fixtures required |
| Color temp | - | 3000K or warmer recommended |
| Direction | - | Downward-directed only |
| Commercial timers | - | Photocell/timer controls |
| Airport concern | - | SCLA approach visibility |
Highlighted rows indicate differences between cities.
Ontario FAQ
Can I install a bright driveway floodlight?
Yes, if the fixture is shielded and light does not trespass past your property line onto a neighbor.
Does Ontario have a true dark-sky ordinance?
Ontario does not have an IDA-level dark-sky law, but airport overlay zones and zoning shielding rules provide similar outcomes.
Victorville FAQ
Are string lights in my backyard allowed?
Low-intensity decorative lights are generally allowed; avoid bright floodlights directed toward neighbors or skyward.
Can my porch light be a bare bulb?
Exposed bulbs are discouraged; shielded fixtures are preferred to reduce glare and light trespass.
Compare other topics
See how Ontario and Victorville compare on other ordinance categories.
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