Interpretation ID: nht71-5.15

DATE: 12/07/71

FROM: AUTHOR UNAVAILABLE; F. Armstrong; NHTSA

TO: Ernest Holmes Company

TITLE: FMVSS INTERPRETATION

TEXT: This is in reply to your letter of November 2, 1971, to Mr. George Shifflett of my staff, in which you ask questions relating to clearance lamp locations on your wrecker bodies.

I am concerned with your statement that "there is no record of your department's approval on the clearance lamp corner mounting on the 750 and 850 bodies." The National Highway Traffic Safety Administration does not "approve" vehicles or equipment subject to the Federal motor vehicle safety standards. Conformance, and certification of that fact, are the manufacturer's responsibility under section 108(a) of the National Traffic and Motor Vehicle Safety Act of 1966. We are glad, however, to provide informal interpretations of the standards when requested to do so by manufacturers such as yourself.

Your first question is, "Does the (low) location of the rear clearance lamp meet the position requirements?". Paragraph S4.3.1.5 of Federal Motor Vehicle Safety Standard No. 108 (effective January 1, 1972), permits a deviation in mounting height: "When the rear identification lamps are mounted at the extreme height of a vehicle, rear clearance lamps need not meet the requirement of Table II that they be located as close as practicable to the top of the vehicle." Thus, if the identification lamps are mounted at the extreme height of the vehicle, Standard No. 108 permits a location of clearance lamps at any height less than the extreme height of the vehicle. This does not change the requirement currently in effect (Table II).

Your second question is, "Does the front clearance lamp location (on the body corner radius) on our 750 and 850 model bodies meet position requirements?". Standard No. 108 currently requires front clearance lamps to be located "as near as practicable to the upper left and right extreme edges of the vehicle." The requirement

effective January 1, 1972, is that these lamps be located "to indicate the overall width of the vehicle . . . as near the top thereof as practicable." It appears from the photographs you enclosed that the front clearance lamps should be mounted higher on the body front, unless you have a good reason for determining that it is not "practicable" to do so.

I trust this will answer your questions.