Missouri Traffic Laws

All-Terrain Vehicles, Equipment Required (RSMO 307.198)
Every all-terrain vehicle, except those used in competitive events, shall have the following equipment when used on a public roadway:
1. A lighted headlamp and tail lamp.
2. An equilateral triangular emblem, to be mounted on the rear of such vehicle at least two feet above the roadway.
3. A braking system maintained in good operating condition.
4. An adequate muffler system in good working condition, and a United States Forest Service qualified spark arrester.