Interpretation ID: nht69-2.4

DATE: 02/12/69

FROM: AUTHOR UNAVAILABLE; Charles A. Baker; NHTSA

TO: Scientific Brake & Equipment Company

TITLE: FMVSS INTERPRETATION

TEXT: Your letter of November 11, 1968, to Mr. Barkley Sweet, Truck Body and Equipment Association, concerning lighting for trucks equipped with snow plow blades, has been hand-carried by him to this Bureau for consideration and reply.

Federal Motor Vehicle Safety Standard No. 108 requires that all trucks be equipped with headlamps mounted at a height above the road surface not more than 54 inches. To effectively illuminate the road when its snow plow is in use, a truck often runt be equipped with additional headlamps at a height greater than 54 inches, and you are correct in installing these lights for dealers and purchasers.

With respect to the several specific questions listed on page 2 of your letter, I would point out that local and State regulations should be reviewed for possible requirements relating to the additional lamps used on trucks operating as snow-plowing vehicles.