Dark Sky Rules: Fontana vs Ontario
How do dark sky rules rules compare between Fontana, CA and Ontario, CA?
Fontana and Ontario have similar restriction levels.
Fontana, CA
San Bernardino County
Fontana regulates outdoor lighting under FMC Title 17 to limit glare and spillover. Commercial and industrial lighting must be shielded full-cutoff. There is no full Dark Sky ordinance citywide.
View full Fontana rules →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 →Key Facts Comparison
| Fact | Fontana | Ontario |
|---|---|---|
| Governing Code | FMC Title 17 Development Code | - |
| Shielding | Full cutoff on commercial | - |
| Property-Line Max | 0.5 fc at residential | - |
| Pole Height | 18-25 ft typical | - |
| Color Temp | 3000K guidance | - |
| Fixture type | - | Full-cutoff shielded |
| CCT limit | - | 3000K |
| Curfew dim | - | 50% after 11 PM (industrial) |
| Airport | - | ALUCP lighting restrictions |
Highlighted rows indicate differences between cities.
Fontana FAQ
Does Fontana have a Dark Sky ordinance?
Not a full Dark Sky ordinance, but FMC Title 17 requires shielded, downward-directed lighting on commercial and industrial projects to limit glare and sky glow.
Can my Fontana neighbor keep a floodlight shining into my bedroom?
Persistent direct glare into another home can be a nuisance under FMC Title 9 and California Civil Code 3479. File a complaint with Code Enforcement and document the glare.
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.
Compare other topics
See how Fontana and Ontario compare on other ordinance categories.
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