Rancho Cordova, CA Outdoor Lighting: Billboard Lighting (2026)
Key Facts
- Max brightness
- 0.3 foot-candles above ambient
- Measured from
- 250 feet, foot-candle meter
- Required hardware
- automatic light-sensing dimmer
- Applies to
- digital freeway signs in 4 overlay zones
- Enforcement
- CUP condition violation, illegal sign abatement
Summary
Digital freeway billboards permitted inside the city's four overlay zones cannot shine brighter than 0.3 foot-candles above ambient light, measured with a foot-candle meter from 250 feet away, and every display must carry a light-sensing dimmer that adjusts automatically as daylight changes.
Illumination. Digital freeway signs shall not operate at brightness levels of more than 0.3 foot-candles above ambient light, as measured using a foot-candle meter at a distance of 250 feet from the sign face. Each digital display area shall have a light sensing device that will adjust the brightness of the sign as ambient light conditions change throughout the day.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4660102; v2 updated 2026-03-02; through 03-02-2026).
Full Breakdown
3 foot-candles above ambient light, with brightness measured using a foot-candle meter positioned 250 feet from the face of the sign. The same subsection requires every digital display area to include a light-sensing device that automatically raises or lowers the sign's brightness as ambient daylight conditions change through the day and night, rather than running at a single fixed output. This brightness standard applies only within the four mapped overlay geographies, Sunrise Boulevard, Hazel Avenue, the mineshaft property, and Bradshaw, where a digital freeway sign has already been approved through a conditional use permit as either a refurbished or relocated billboard.
3 foot-candle ceiling and the sign's physical footprint stay the same. The subsection immediately following, Quality and Maintenance Plan, requires the sign operator to submit a plan documenting how the brightness standard and the rest of the development standards will be maintained and repaired over the life of the sign, tying the lighting limit directly into the ongoing conditions of the conditional use permit.
Violations & Fines
A digital freeway sign operating above the 0.3 foot-candle limit, or lacking a functioning automatic dimming sensor, violates a condition of its conditional use permit under RCMC § 23.743.150(C)(1)(i) and can be cited as an illegal sign under § 23.743.020(I), subject to abatement. Repeated brightness violations put the sign's conditional use permit and any operating agreement at risk of revocation by the council.
Frequently Asked Questions
How bright can a digital billboard be in Rancho Cordova?
Do digital billboards have to dim automatically at night?
Who enforces the brightness limit on digital billboards?
Can new lighting technology change the brightness rule later?
Sources & Official References
Other rules in Rancho Cordova
California rules heatmap·Compare Rancho Cordova to another location·View the California outdoor lighting overview
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