Light Bars & LED Lighting in Missouri
Missouri allows up to three auxiliary lamps mounted 12 to 42 inches on the front, with no cover requirement. When lit they must be substantially white, yellow, or amber.
Verified against primary sources · August 2026
What the law says
Notably, Missouri's 300-candlepower aiming cap expressly excludes headlamps, spotlamps, and auxiliary lamps. Contrary to widely repeated advice, no cover is required in this state. Mounting a light bar is legal everywhere; what states regulate is using it on public roads, and the usual constraint is a mounting-height ceiling plus a per-type lamp count — a roof-mounted bar often falls outside the permitted category entirely.
Specific Limits
- 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
- Cover required
- No
Frequently Asked Questions
Are light bars & led lighting legal in Missouri?
What are the exact light bars & led lighting limits in Missouri?
Street-legal light bars & led lighting picks
Gear that helps you mod without a ticket in Missouri.
Required on the road in Pennsylvania, Michigan, and Virginia — but check your state first: Illinois and Kentucky prohibit tinted lens covers.
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