Interpretation ID: nht68-3.30
DATE: 05/01/68
FROM: AUTHOR UNAVAILABLE; Joseph R. O'Gorman; NHTSA
TO: Truck Equipment, Incorporated
TITLE: FMVSS INTERPRETATION
TEXT: Thank you for your letter of March 6, 1968, to Mr. Lowell K. Bridwell, Federal Highway Administrator, in which you inquired about certification responsibility for lighting on your truck bodies.
Federal Motor Vehicle Safety Standard No. 108 on lighting applies to motor vehicles, not to motor vehicle equipment such as truck bodies.
When the body is mounted on the chassis cab, the lighting requirements of Federal Standard No. 108, not certified by the manufacturer, must be fulfilled.
Certification must be provided to the dealer when the chassis cab is completed for the dealer. A dealer selling to the final purchaser need not certify, but is responsible for lighting to be in compliance with Federal Standard No. 108, for that part of the lighting (or other standards) which have not been previously certified.
Trusting this information answers your questions.