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Clark County, NV Sign Regulations: Digital Billboards (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Daytime cap
5,000 nits, dawn to dusk
Urban night cap
300 nits, dusk to dawn
Nonurban night cap
150 nits, dusk to dawn
Light trespass limit
0.3 footcandles above ambient at line
Strip exemption
Las Vegas Blvd Gaming Corridor excluded

Summary

Electronic message unit signs outside the Las Vegas Strip's Gaming Corridor are capped at 5,000 nits by day, dropping to 150-300 nits at night, with mandatory dimmers and a black-screen shutoff on malfunction.

City-specific rules exist: Henderson, Las Vegas, and North Las Vegas have their own digital billboards rules that differ from Clark County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Electronic Message Units shall not exceed the following: (a) In the Urban Area: a maximum luminance of 5,000 nits from dawn to dusk or a maximum of 300 nits from dusk to dawn. (b) In the Nonurban Area: a maximum luminance of 5,000 nits from dawn to dusk or a maximum of 150 nits from dusk to dawn. (c) Light trespass shall not exceed 0.3 footcandles above ambient light, measured at the property line...

View official code

Full Breakdown

Clark County's Unified Development Code caps electronic message unit (EMU) signs at 5,000 nits maximum luminance from dawn to dusk. After dark, the ceiling drops to 300 nits in the Urban Area or 150 nits in the Nonurban Area, and light trespass at the property line cannot exceed 0.3 footcandles above ambient. Every EMU must have an automatic dimmer that adjusts to ambient light, and the screen must go black or power off if it malfunctions. Notably, these limits exempt the Las Vegas Boulevard Gaming Corridor under NRS 463.3076: the Strip's mega-signs are governed separately, not by this section.

Violations & Fines

Sign permit holders must certify compliance with the luminance standards to the county on request; non-compliant Electronic Message Units are subject to code enforcement action and required correction of illumination levels.

Frequently Asked Questions

Do the Strip's giant digital billboards follow these luminance limits?
No. Section 30.05.04(A) exempts development within the Las Vegas Boulevard Gaming Corridor, as defined in NRS 463.3076, from the county's sign illumination standards entirely.
What must happen if an electronic message sign malfunctions?
The screen must turn to black or power off completely, per 30.05.04(B)(2)(iii) of the Unified Development Code.

Sources & Official References

Other rules in Clark County

Noise Ordinances: Construction HoursSome RestrictionsHoliday DisplaysSome RestrictionsGarage Sale SignsSome RestrictionsWindow SignsSome RestrictionsFreeway-Facing SignsSignificant RestrictionsPolitical SignsFew RestrictionsNoise Ordinances: Aircraft NoiseLight RestrictionsParking Rules: Curb Color RulesSome RestrictionsParking Rules: Loading ZonesSome RestrictionsAnimal Ordinances: Wildlife Rescue PermitsSignificant RestrictionsAnimal Ordinances: Veterinary Clinic ZoningSome Restrictions

All Clark County rules

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Digital Billboards in Cities Across Clark County

Las Vegas, NVHenderson, NVNorth Las Vegas, NV