Light Bars & LED Lighting Laws by State
Compare light bars & led lighting regulations across all 50 states.
| State | Status | Key limits | |
|---|---|---|---|
| Alabama | Conditional | Aiming: lamps over 300 candlepower aimed so no beam strikes the roadway beyond 75 ft Max lamps: 1 auxiliary driving lamp (16-42 in), 2 fog lamps (12-30 in), 1 spot lamp Cover required: No | Details → |
| Alaska | Conditional | Max lit: 4 front lights over 300 candlepower when there is approaching traffic Prohibited: red visible from the front; flashing or rotating lights Spotlights: 2 maximum +1 more on the state page | Details → |
| Arizona | Conditional | Aiming: no beam striking the roadway beyond 75 ft Max lit: 4 front lamps over 300 candlepower at any one time on a highway Cover required: No | Details → |
| Arkansas | Conditional | Max lit: 4 front lamps over 300 candlepower Max lamps: 2 each of spot, fog (12-30 in), auxiliary passing (24-42 in), and auxiliary driving lamps (16-42 in) Cover required: No | Details → |
| California | Conditional | On highway: must be covered with an opaque hood AND turned off | Details → |
| Colorado | Conditional | Aiming: other lamps over 300 cp must be aimed within 75 ft; lamps must be a department-approved type Max lit: 4 front lamps over 300 candlepower at one time on a highway Per type: 2 each of spot, fog (12-30 in), auxiliary passing (20-42 in), and auxiliary driving lamps (16-42 in) | Details → |
| Connecticut | Conditional | Max lamps: 2 each of spot, fog (12-30 in), auxiliary passing (24-42 in), and auxiliary driving lamps (16-42 in) Cover required: No | Details → |
| Delaware | Conditional | Max lamps: 2 spot lamps, 2 fog lamps (12-30 in), 1 auxiliary passing lamp (24-42 in), 1 auxiliary driving lamp (16-42 in) Cover required: No | Details → |
| Florida | Conditional | Max lit: 4 front lamps over 300 candlepower at any one time on a highway Prohibited: red, red-and-white, or blue visible from directly in front Cover required: No | Details → |
| Georgia | Conditional | Max lamps: 1 spotlight, 2 fog lights (12-30 in), 1 auxiliary passing light (24-42 in), 1 auxiliary driving light (16-42 in) Spotlight use: unlawful to operate from a moving vehicle on a highway except law enforcement Cover required: No | Details → |
| Hawaii | Conditional | Blue: blue or blue-and-red lamps banned — including mere possession or affixing (up to $1,000 / 1 year) Aux count: chapter 291 contains no auxiliary-lamp count Headlamps: white, ≤2,400 apparent candlepower measured 100 ft ahead; ≤800 to the side +2 more on the state page | Details → |
| Idaho | Conditional | Aiming: no high-intensity beam striking the roadway beyond 75 ft Max lit: 4 front lamps at one time on a highway where any exceed 300 candlepower Cover required: No | Details → |
| Illinois | Conditional | Max lamps: 3 auxiliary driving lamps (white, HID white, or yellow-amber, forward-facing, 12-42 in) plus 1 spot lamp aimed no more than 100 ft Prohibited: red to the front; flashing lights Cover required: No +1 more on the state page | Details → |
| Indiana | Conditional | Max lit: 4 front lamps over 300 candlepower at one time on a highway Max lamps: 2 fog lamps (12-30 in), 1 auxiliary passing lamp (24-42 in), 1 auxiliary driving lamp (16-42 in) Cover required: No | Details → |
| Iowa | Conditional | Aiming: 300 candlepower / 75 ft rule for other lamps Max lit: 4 front lamps over 300 candlepower at once on a highway Max lamps: 3 auxiliary driving lamps mounted 12-42 in +1 more on the state page | Details → |
| Kansas | Conditional | Aiming: 300 candlepower / 75 ft Max lit: 4 front lamps over 300 candlepower at once Max lamps: 2 each of spot, fog, auxiliary passing (24-42 in), and auxiliary driving lamps (16-42 in) +1 more on the state page | Details → |
| Kentucky | Conditional | Prohibited: blue Front colors: white or amber unless original equipment Cover required: No +1 more on the state page | Details → |
| Louisiana | Conditional | Max lamps: 2 fog lamps (12-30 in), 2 auxiliary driving lamps (16-42 in), 2 auxiliary passing lamps (24-42 in) Spotlights: restricted to emergency, public-service, and qualifying farm vehicles Cover required: No | Details → |
| Maine | Conditional | Fog lights: 2, amber or white, aimed so rays do not shine more than 2 ft above the road at 30 ft Height rule: any light mounted higher than the center of the main headlights may not be illuminated on a public way Cover required: No | Details → |
| Maryland | Conditional | Max lit: 4 front lamps where any exceed 300 candlepower Max lamps: 1 spot lamp (aimed no more than 100 ft, not left of the vehicle), 2 fog lamps (12-30 in), 2 auxiliary driving lamps (16-42 in) Cover required: No | Details → |
| Massachusetts | Conditional | Glare: no dangerous or dazzling light above 42 in measured 75+ ft ahead Standard: all lighting must conform to FMVSS 108 Prohibited: flashing, rotating, or oscillating lights +2 more on the state page | Details → |
| Michigan | Conditional | On road: must be both covered and unlit Exception: lamps expressly required or permitted, or meeting 49 CFR 571.108 Front colors: white or amber +1 more on the state page | Details → |
| Minnesota | Conditional | Max lamps: 2 auxiliary driving lamps (16-42 in), 2 auxiliary low-beam lamps (24-42 in), 1 spot lamp aimed no more than 100 ft, 2 fog lamps (12-30 in) Roof mounted: must be completely covered with opaque material on a public highway Cover required: only for lamps mounted outside the 16-42 in window | Details → |
| Mississippi | Conditional | Colors: white or amber only Max lamps: 2 auxiliary driving lamps (12-42 in) and 1 spot lamp Cover required: No | Details → |
| Missouri | Conditional | Aiming: the 300 candlepower / 75 ft cap expressly excludes headlamps, spotlamps, and auxiliary lamps Colors: substantially white, yellow, or amber when lighted Max lamps: 3 auxiliary lamps mounted 12-42 in on the front +1 more on the state page | Details → |
| Montana | Conditional | Max lit: 4 front lamps over 300 candlepower Max lamps: 2 spot, 2 fog, 2 auxiliary driving lamps (16-42 in) Cover required: No +1 more on the state page | Details → |
| Nebraska | Conditional | Aiming: non-exempt devices over 25 candlepower aimed so no beam strikes the road beyond 50 ft Max lamps: 2 auxiliary driving lights mounted 12-42 in Cover required: No | Details → |
| Nevada | Conditional | Max lit: 4 auxiliary, spot, or front lamps over 300 candlepower at one time on a highway Cover required: No | Details → |
| New Hampshire | Conditional | Max lamps: 3 auxiliary driving lamps (12-42 in) Light bars: aftermarket LED light bars, flood-style pod lights, and roof or roll-bar mounted lights may not be illuminated while operating on a way Cover required: No | Details → |
| New Jersey | Conditional | Max lit: 4 front lamps over 300 candlepower Max lamps: 2 auxiliary driving lamps (12-42 in) Cover required: only for elevated vehicles seeking an approval certificate | Details → |
| New Mexico | Conditional | Use rule: the auxiliary driving lamp must be off within 500 ft of approaching vehicles Max lamps: 2 spot lamps, 2 fog lamps, and only ONE auxiliary driving lamp (16-42 in) Cover required: No | Details → |
| New York | Conditional | Glare: auxiliary front-facing lamps must not dazzle approaching drivers Cover required: No Approval threshold: no lamp with a light source over 32 candlepower may be used unless approved by the Commissioner | Details → |
| North Carolina | Conditional | Max lamps: 2 spot lamps and 2 auxiliary driving lamps Cover required: No Candlepower cap: none | Details → |
| North Dakota | Conditional | Max lit: 4 front lamps at one time Max lamps: 2 each of spot, fog, auxiliary passing, and auxiliary driving lamps Height rule: auxiliary driving lamps mounted below 16 in or above 42 in may not be lighted on a highway +1 more on the state page | Details → |
| Ohio | Conditional | Aiming: 75 ft rule Max lit: 5 auxiliary, spot, or front lamps over 300 candlepower at one time on a highway Cover required: No | Details → |
| Oklahoma | Conditional | Max lamps: 2 spot, 2 fog, 2 auxiliary driving lamps Cover required: No Off road lamps: permitted if mounted at least 42 in from the ground, wired independently of all other lighting, and turned off whenever the vehicle is operated on a highway | Details → |
| Oregon | Conditional | Height rule: auxiliary lights used on the highway must be mounted 54 in or less and show white light forward; lights above 54 in may not be lighted on a highway Cover required: No | Details → |
| Pennsylvania | Conditional | Rule: roof or roll-bar mounted off-road lights may be installed only if not used on a highway AND covered with an opaque covering at all times while operating on a highway Switch: a switch with a pilot light indicating to the driver when they are on is required Cover required: Yes | Details → |
| Rhode Island | Conditional | Aiming: 75 ft rule for other non-exempt lamps Max lit: 4 auxiliary, spot, or front lamps over 300 candlepower at one time on a highway Cover required: No | Details → |
| South Carolina | Conditional | Note: auxiliary lamps are exempt from the 75 ft aiming rule Max lit: 4 auxiliary, spot, or front lamps over 300 candlepower at one time on a highway Cover required: No | Details → |
| South Dakota | Conditional | Use rule: no auxiliary driving lamp other than a fog lamp may be lit while headlamps are on low beam Max lamps: 3 auxiliary driving lamps mounted 12-24 in above the surface Cover required: No | Details → |
| Tennessee | Conditional | Aiming: no spot or auxiliary lamp aimed beyond the vehicle's left side or more than 100 ft ahead on approach Max lit: 2 auxiliary road-lighting lamps in addition to the 2 required headlights Cover required: No | Details → |
| Texas | Conditional | Max lit: 4 front lamps over 300 candlepower On highway: off (no cover requirement) | Details → |
| Utah | Conditional | Glare: 75-ft rule; no red/blue to front Max lit: 4 front lamps over 300 candlepower On highway: off (no cover requirement) | Details → |
| Vermont | Conditional | Beam: must not rise more than 6 in above bulb height at 75 ft, and never more than 42 in above the surface Cover required: No Approval threshold: no lighting device over 4 candlepower with a reflector may be used on a highway unless the device, lens, and candlepower are approved by the Commissioner | Details → |
| Virginia | Conditional | Max lamps: 1-2 auxiliary driving lights and only if factory-equipped; max 2 fog lights lit Cover required: covered and unlit, OR clear lens and clear reflector and unlit | Details → |
| Washington | Conditional | Max lit: 4 front lamps over 300 candlepower at one time on a highway Max lamps: 2 spot, 2 auxiliary passing (24-42 in), 2 auxiliary driving (16-42 in), 2 fog lamps Cover required: No | Details → |
| West Virginia | Conditional | Aiming: 75 ft rule Max lit: 4 auxiliary, spot, or front lamps over 300 candlepower at one time on a highway Cover required: No | Details → |
| Wisconsin | Conditional | Max lit: 4 adverse-weather, spot, auxiliary, or front lamps over 300 candlepower at any one time on a highway Cover required: No | Details → |
| Wyoming | Conditional | Aiming: non-exempt lamps over 300 candlepower must not strike the roadway beyond 75 ft; spot and auxiliary lamps are excepted Max lit: 4 front lamps at one time on a highway Cover required: No | Details → |
Limits shown apply to sedans, or to all vehicles where the law doesn't distinguish. Vehicle-specific rules, exceptions, and statute citations are on each state's page.
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