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Rancho Cordova, CA Outdoor Lighting: Billboard Lighting (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 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.

View official code

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?
No brighter than 0.3 foot-candles above ambient light, measured with a foot-candle meter from 250 feet away from the sign face, under RCMC § 23.743.150(C)(1)(i). That limit applies only to the digital freeway signs permitted inside the city's four mapped overlay zones.
Do digital billboards have to dim automatically at night?
Yes. RCMC § 23.743.150(C)(1)(i) requires every digital display area to include a light-sensing device that automatically adjusts the sign's brightness as ambient light conditions change throughout the day, rather than allowing the operator to run a fixed brightness level around the clock.
Who enforces the brightness limit on digital billboards?
The city enforces the 0.3 foot-candle cap as a condition of the sign's conditional use permit; a sign running brighter than allowed can be cited as an illegal sign under RCMC § 23.743.020(I) and ordered abated, and repeat violations put the underlying permit at risk of revocation.
Can new lighting technology change the brightness rule later?
RCMC § 23.743.150(C)(1)(l) lets the city allow newer illumination technology on an already-permitted sign without a new council approval, but only if the sign still meets the 0.3 foot-candle maximum and no physical change occurs to the digital display area itself.

Sources & Official References

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