§ 25-492. Arrangement of multibeam head lamps.

Except as otherwise provided in this division, the head lamps or the auxiliary lamps or combination thereof on motor vehicles other than motorcycles or motor-driven cycles shall be so arranged that the driver may select at will between distributions of light projected to different elevations and the lamps may, in addition, be so arranged that selection can be made automatically, subject to the following limitations:

(1)

There shall be an uppermost distribution of light, or composite beam, so aimed and of such intensity as to reveal persons and vehicles at a distance of at least three hundred and fifty (350) feet ahead for all conditions of loading.

(2)

There shall be a lowermost distribution of light, or composite beam so aimed and of sufficient intensity to reveal persons and vehicles at a distance of at least one hundred (100) feet ahead; and on a straight level road under any condition of loading, none of the high-intensity portion of the beam shall be directed to strike the eyes of an approaching driver.

State law reference

Similar provisions, RSMo 307.060.