St. Petersburg, FL Outdoor Lighting: Billboard Lighting (2026)
Key Facts
- Brightness ceiling
- 0.3 foot-candles above ambient light
- Measurement distance
- 150-250 ft, scaled to sign size
- Light-sensing device
- required on every digital billboard
- Malfunction fail-safe
- auto shut-off or full black image
- First-violation fine
- $1,000 per day
Summary
St. Petersburg forces every digital billboard to run a light-sensing dimmer that caps brightness against ambient light, bans glare that blinds drivers, and requires the sign to fail safe, going dark or full black, under City Code Section 16.40.120.8.
8.Each sign shall have a light sensing device to adjust brightness as ambient light conditions change in order to insure that the message meets the following brightness standards. The maximum brightness shall be 0.3 foot candles above the ambient light measured 150 feet perpendicular from the face of a sign that is less than or equal to 300.0 square feet in area, 200 feet perpendicular from the face of a sign that is greater than 300.0 square feet in area but less than or equal to 378.0 square feet in area, and 250 feet perpendicular from the face of a sign that is greater than 378.0 square feet in area.9.The sign face shall not display light that is of such intensity or brilliance to cause glare or otherwise impair the vision of a driver. ... 10.The sign shall have a default mechanism or setting that will cause the sign to turn off or show a "full black" image if a visible malfunction or failure occurs.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 54).
Full Breakdown
8(D) of the Sign Code sets the illumination standards that apply specifically to digital or electronic off-premise signs, the billboards the City allows only within 100 feet of the interstate right-of-way. 3 foot candles at a distance of 150 feet perpendicular from the face for signs up to 300 square feet, 200 feet for signs between 300 and 378 square feet, and 250 feet for anything larger. Beyond the numeric ceiling, the sign face can never display light 'of such intensity or brilliance to cause glare or otherwise impair the vision of a driver,' and it cannot interfere with the effectiveness of any official traffic sign, signal or device; a violation on either count requires the sign owner to power the display off or show a full black image until it's fixed.
Every sign also needs a default mechanism that automatically shows a full black image or shuts the display off the moment a malfunction or failure occurs, and the sign can never be configured to resemble a warning or danger signal or to simulate official traffic-control lighting. These standards sit alongside, and are separate from, the message-content rules for the same signs, such as the ten-second minimum dwell time and the ban on scrolling or animated images.
Violations & Fines
Lighting, brightness, message-sequencing or dwell-time violations get a six-hour cure period once the City issues a Chapter 9 notice, tolled while the sign is powered off to fix the problem. After that, fines run $1,000 per day for a first violation, $2,500 per day for a second, and $5,000 per day for a third or later violation under the enhanced Code Enforcement Board authority of F.S. § 162.09(2)(d).
Frequently Asked Questions
Does a digital billboard need automatic dimming at night?
Can a billboard's glare blind drivers?
What happens if a digital billboard malfunctions?
Sources & Official References
Other rules in St. Petersburg
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