Saint Paul, MN Outdoor Lighting: Billboard Lighting (2026)
Key Facts
- Maximum illumination
- 0.3 footcandles above ambient light
- Measurement distance
- 50 feet from the sign face
- Required equipment
- automatic dimmer control
- Correction deadline after notice
- 1 business day
- Enforcing standard body
- city traffic engineer (safety interference)
Summary
Digital billboards and other dynamic-display signs in Saint Paul cannot exceed 0.3 footcandles above ambient light measured from 50 feet away, and must have an automatic dimmer that keeps brightness in compliance at all times.
No sign with dynamic display may exceed a maximum illumination of 0.3 foot candles above ambient light level as measured from fifty (50) feet from the sign's face. All signs with dynamic display having illumination by means other than natural light must be equipped with an automatic dimmer control or other mechanism that automatically controls the sign's brightness to comply with this requirement.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 133 Update 1).
Full Breakdown
Sec. 405(c) of the Saint Paul Zoning Code sets the citywide illumination ceiling for every sign with dynamic display, including digital billboards converted under Sec. 3 footcandles above the ambient light level, measured from 50 feet from the sign's face. Any sign with dynamic display that isn't lit solely by natural light must be equipped with an automatic dimmer control, or another mechanism, that automatically adjusts brightness to stay within that cap as ambient light changes through the day and night. 3-footcandle number. If a brightness violation is identified, the sign owner or operator has just one business day from the city's notice of noncompliance to correct it.
This lighting standard sits alongside the sign's other Sec. 405 operating limits (location, area, malfunction and image-behavior rules), so a converted freeway billboard under Sec. 3-footcandle ceiling as any other dynamic-display sign in the city, regardless of size or zoning district.
Violations & Fines
A dynamic-display or digital billboard that exceeds the 0.3-footcandle brightness cap is a Sec. 64.405(c) violation enforced by Saint Paul's Department of Safety and Inspections; once the city issues notice of noncompliance, the owner or operator has one business day to bring the sign's illumination into compliance, and the city traffic engineer can separately order correction of any sign found to interfere with official traffic controls.
Frequently Asked Questions
How bright can a digital billboard be in Saint Paul?
What happens if a digital billboard in Saint Paul is too bright?
Does the brightness cap apply to converted freeway billboards too?
Sources & Official References
Other rules in Saint Paul
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