Wyoming Neon Underglow Laws

Wyoming, with its vast open spaces and scenic landscapes, is a haven for automobile enthusiasts. Many vehicle owners seek to personalize their rides, and one popular way to do so is by adding neon underglow lighting. However, before you illuminate your vehicle’s underside, it’s essential to understand the laws governing neon underglow in the state of Wyoming. This article delves into the specifics of Wyoming’s regulations, helping you stay stylish and compliant.

Is neon underglow legal in Wyoming?

In Wyoming, there are no specific legal restrictions placed on additional aftermarket vehicle lighting, including neon underglow. Therefore, it can be concluded that neon underglow is generally not illegal in Wyoming. However, to ensure compliance with state regulations, it is crucial to adhere to the following restrictions:

  1. All lights that are visible from the rear of the vehicle should be red.
  2. Red or blue lights should not be visible from the front of the vehicle.
  3. License plate illumination must be in the form of white lights.
  4. Flashing lights are not permitted.

For added safety and to avoid any potential issues, it is advisable to completely avoid using red and blue colors, as well as any combination of red, blue, amber, and white lights that might resemble emergency vehicle lighting.

It is important to note that Wyoming does not have specific laws that prohibit the installation or use of car underbody lighting. Therefore, it is generally considered legal to use underbody lighting while driving in the state, as long as the above-mentioned restrictions and guidelines are followed. Nonetheless, it is always recommended to stay informed about any updates or changes in the law and to consult with local law enforcement if you have any concerns or questions about the use of neon underglow on your vehicle in Wyoming.

Wyoming’s Stance on Neon Underglow

As of the last available information, Wyoming’s laws regarding neon underglow are relatively lenient. The state allows vehicle owners to install and use neon underglow lighting, provided it adheres to specific guidelines.

Legal Colors:

Wyoming law doesn’t explicitly prohibit the use of neon underglow, which means you can enjoy a spectrum of colors, from subtle whites and blues to more vibrant hues. However, there is an important caveat to keep in mind. The lights should not emit any red or green colors to prevent any confusion with emergency vehicles.

Placement Rules:

While Wyoming is generally accommodating to underglow lighting, there are certain placement rules to observe. Neon lights should not be installed or operated in a manner that distracts other drivers or compromises the operator’s vision. The lights should be positioned in such a way that they do not blind or impede other motorists on the road.

No Flashing or Moving Patterns:

Wyoming’s regulations emphasize the importance of static, non-flashing underglow lighting. Flashing or moving patterns that can be distracting to other drivers are typically discouraged and may lead to legal issues.

When to Use Underglow:

It’s important to exercise good judgment when using neon underglow in Wyoming. Using these lights while your vehicle is in motion on public roads is generally acceptable, but remember to avoid situations that might confuse or distract other drivers.

Local Ordinances:

While Wyoming’s state law is relatively permissive, it’s crucial to check for any local ordinances or regulations that may impose additional restrictions. Some municipalities within Wyoming may have specific rules regarding underglow, so consulting with local law enforcement is advisable.

Wyoming vehicle lighting laws

The following are selected excerpts from the Wyoming Vehicle Code that pertain to the installation and use of aftermarket lights on vehicles.

31-5-901.  General requirements; applicability of provisions.

(b)  Nothing contained in this act shall prohibit equipment required by the United States Department of Transportation nor the use of additional parts and accessories on any vehicle not inconsistent with the provisions of this act.

§ 31-5-917.  Color of lighting devices.

All lighting devices and reflectors mounted on the rear of any vehicle shall display or reflect a red color, except the stop light or other signal device, which may be red or yellow, and except that the light illuminating the license plate shall be white and the light emitted by a backup lamp shall be white.

§ 31-5-928.  General lighting restrictions; authorized emergency vehicles.

[…] (b) Except as required in W.S. 31-5-929 and this section, no person shall drive or move any vehicle or equipment upon any highway with any lamp or device thereon capable of displaying a red light or blue light visible from directly in front of the center thereof.

(c) Flashing lights are prohibited except as authorized […]

(d) Every authorized emergency vehicle, except police vehicles and as otherwise specified in this subsection, shall, in addition to any other equipment required by law, be equipped with at least one (1) red lamp visible from five hundred (500) feet in front of the vehicle. Except as otherwise provided in this subsection, every authorized emergency vehicle, may be equipped with one (1) or more blue, white or amber lights. Vehicles used by the department to clear snow from public highways may be equipped with one (1) or more lights of a conspicuous color as specified by rules adopted by the department. Privately-owned vehicles used by members of a fire department or emergency service organization in performing or traveling to perform assigned duties in those organizations shall display at least one (1) flashing white, red or amber light, but no blue lights, visible from five hundred (500) feet in front of the vehicle.


As per Article 31-5-901, violating vehicle equipment regulations is considered a misdemeanor.

31-5-901.  General requirements; applicability of provisions.

(a)  It is a misdemeanor for any person to drive or move or for the owner to cause or knowingly permit to be driven or moved on any highway any vehicle or combination of vehicles which is in such unsafe condition as to endanger any person, or which does not contain those parts or is not at all times equipped with such lamps and other equipment in proper condition and adjustment as required in this act, or which is equipped in any manner in violation of this act, or for any person to do any act forbidden or fail to perform any act required under this act.


Wyoming’s stance on neon underglow lighting is generally permissive, allowing vehicle owners to enhance their rides with creative lighting. However, it’s essential to follow the state’s regulations and be considerate of other drivers. Avoid using red or green lights, flashy patterns, and any installations that could impede your own or others’ vision. Additionally, remember to check for any local ordinances that may impose further restrictions.

As you cruise through Wyoming’s scenic highways and byways, you can add a touch of personal style to your vehicle with neon underglow, all while remaining within the boundaries of the law.

FAQs About Wyoming Neon Underglow Laws

Here are answers to your frequently asked questions regarding underglow lights in Wyoming:

1. Are Underglow Lights Legal in Wyoming?

Wyoming law does not explicitly prohibit the use of underglow lights on vehicles. However, certain restrictions must be observed, such as color limitations and placement rules.

2. When Is It Legal to Use Underglow Lights in Wyoming State?

It is generally legal to use underglow lights in Wyoming as long as you comply with the state’s regulations. Neon underglow lights should not emit the colors red or green, and they should be placed in a way that does not distract other drivers or hinder your own vision.

3. When Is It Illegal to Use Underglow Lights In Wyoming?

It is generally considered illegal to use underglow lights in Wyoming if they emit the colors red or green, as this could lead to confusion with emergency vehicles. Flashing or moving patterns that can be distracting to other drivers may also be considered illegal.

4. Is It Illegal to Install Underglow Lights In Wyoming?

Installing underglow lights is not explicitly illegal in Wyoming. However, they must adhere to the state’s regulations, especially regarding colors and placement.

5. What Wyoming Vehicle & Traffic Law Restricts Use of Lights On Motorcycles?

Wyoming’s vehicle and traffic laws apply to motorcycles, and the same restrictions and regulations typically extend to underglow lights on motorcycles.

6. Are Multicolored Underglow Lights Illegal in Wyoming?

Using multicolored underglow lights may be allowed in Wyoming as long as they do not emit red or green colors, and they do not create distracting or confusing patterns.

7. Wyoming Traffic Ticket/Summons for Under Glow Lights on a Motorcycle

If you violate Wyoming’s underglow regulations, you may receive a traffic ticket or summons. The specific consequences, such as fines or warnings, could vary depending on the circumstances and the discretion of law enforcement.

8. Are Under Glow Lights Legal While Parked in Wyoming?

While parked, using underglow lights is generally allowed in Wyoming, provided they comply with the state’s regulations. However, it’s essential to consider local ordinances that may impose additional restrictions.

9. Are Motorcycle Wheel Lights Legal in Wyoming?

Motorcycle wheel lights are subject to the same regulations as other underglow lights in Wyoming. They should not emit red or green colors and should follow placement guidelines.

10. Is the Law for Underglow Lights the Same for Cars and Motorcycles in Wyoming?Wyoming’s underglow regulations apply to both cars and motorcycles, and the same color and placement restrictions typically extend to both vehicle types.


Location: Wyoming is a state located in the western region of the United States. It is known for its vast, sparsely populated landscapes and natural beauty.

Capital: Cheyenne

Largest City: Cheyenne

Cities in Wyoming: Cheyenne, Casper, Laramie, Jackson, Cody, Gillette, Rock Springs, Sheridan, Lander, Riverton, Thermopolis, Rawlins, Pinedale, Evanston, Green River, Pavillion, Buffalo, Buford, Worland, Douglas, Spearfish, Sundance, Powell, Torrington, Kemmerer, Dubois, Saratoga, Wheatland, Lost Springs, Afton, Ten Sleep, Elk Mountain, Lusk, Greybull, Basin, Medicine Bow, Lovell, Newcastle, Big Piney, Fort Laramie, Glenrock, Willwood, Meeteetse, Alpine, Pine Bluffs, Goose Egg, Kaycee, Grand Encampment, Guernsey, Opal

Statehood: Wyoming became the 44th state of the United States on July 10, 1890.

Nickname: “The Equality State” – This nickname was chosen because Wyoming was the first state to grant women the right to vote and hold public office.

Motto: “Equal Rights”

Population: As of my last knowledge update in January 2022, Wyoming had a population of approximately 578,000 people, making it one of the least populous states in the U.S.

Geography: Wyoming is known for its diverse geography, which includes the Rocky Mountains, high plains, deserts, and several national parks and monuments. It is home to iconic natural features such as Yellowstone National Park and Grand Teton National Park.

Wyoming Underglow law references:

Wyoming Vehicle Code, Title 31: Motor Vehicles, Chapter 5: Regulation of Traffic on Highways, Article 9: Equipment

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