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Cameron County, TX Sign Regulations: Digital Billboards (2026)

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

Key Facts

CEVMS defined as
LED/digital sign varying in intensity or color
Non-electrified sign permit
exempt under Subsection I.6
Electrified sign (CEVMS) permit
required, $75.00 per sign
Off-premises/billboard sign
separately defined, Subsection I.1(q)
Enforcement
County Building Official

Summary

Cameron County treats any electrified sign, including an LED or digital 'CEVMS' display, as outside the permit exemptions its sign order grants to non-electrified signs, so a digital billboard needs the $75.00 sign permit before it goes up. The county's sign order also defines and separately tracks off-premises signs such as billboards.

These county ordinances apply to unincorporated areas of Cameron County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Changeable electronic variable message sign or CEVMS means an electric sign which permits light to be turned on or off intermittently or which is operated in a way whereby light is turned on or off intermittently, including any illuminated sign on which such illumination is not kept stationary or constant in intensity and color at all times when such sign is in use, including an LED (light emitting diode) or digital sign, and which varies in intensity or color.

Full Breakdown

including an LED (light emitting diode) or digital sign, and which varies in intensity or color,' excluding only traffic-control devices covered by the federal MUTCD. 1(q) separately defines an 'off-premises sign' as one 'advertising an establishment, merchandise, service or entertainment which is not sold, produced, manufactured or furnished at the premises,' giving billboards and outdoor advertising as its own examples. 6 lists the sign types exempt from permits, but only 'provided such signs are not electrified'; because a CEVMS is by definition an electric sign, it falls outside every exemption on that list, from agricultural and construction signs to identification and window signs. 00 per sign. 3 sets the order's goals as regulating sign location, spacing, setbacks and lighting to protect public safety and property values.

Violations & Fines

Erecting, installing or servicing an electrified sign such as a CEVMS without the $75.00 permit required by Subsection I.5 violates the sign order, and Subsection I.4 makes it 'unlawful for any person to erect, place or maintain a sign in the count except in accordance with the provisions of this order.' The County Building Official enforces the order and can inspect the premises to confirm compliance.

Frequently Asked Questions

Does Cameron County require a permit for a digital sign?
Yes. The county's sign order exempts only non-electrified signs from its permit requirement under Subsection I.6, and a CEVMS, meaning an LED or digital display, is by definition electric. That leaves the general rule in Subsection I.5 in force: a $75.00 sign permit is required before the sign goes up.
What is a CEVMS under Cameron County's sign order?
Subsection I.1(f) defines a Changeable Electronic Variable Message Sign as an electric sign that turns light on and off intermittently or varies in intensity or color, including LED and digital displays. It excludes only signs functioning as federally regulated traffic-control devices under the Manual on Uniform Traffic Control Devices.
Are billboards regulated separately from other signs?
Yes. Subsection I.1(q) defines an 'off-premises sign' as one advertising a business or product not located on the same premises, naming billboards and outdoor advertising as examples, and the order's political-sign exemption specifically excludes any billboard carrying commercial messages available for rent alongside a political one.

Sources & Official References

Other rules in Cameron County

All Cameron County rules

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