Interpretation ID: 1983-3.13

TYPE: INTERPRETATION-NHTSA

DATE: 10/20/83

FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA

TO: Liberty Square

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. P. T. Miller 90 W. 79th Avenue Liberty Square P.O. Box G Merriville, Indiana 46410

Dear Mr. Miller:

The Department of Commerce has forwarded your letter of September 27, 1983, to Mr. Vinson of this office, for our reply. You have asked about Federal standards for motorcycle headlamps in connection with your investigation of an accident in Indiana involving a motorcycle reputedly equipped with "a custom light approximately 2 1/2" by 5"...smaller than a stock light." Indiana Law requires that motorcycles be equipped with headlamps meeting Federal standards.

The principal Federal standard on motorcycle headlighting is SAE Standard J584a, incorporated by reference in 49 CFR 571.108, Motor Vehicle Safety Standard No. 108. The standards do not list permissible sizes for motorcycle headlamps that are not sealed beam, specifying only that the light emitted comply with requirements at various photometric test points. Thus, the small size of the lamp in question is not indicative that it failed to meet Federal motorcycle requirements.

However, we are not aware that motorcycle headlamps are available in rectangular sizes smaller than those used on passenger cars, i.e.,4" by 6". Perhaps the lamp in question was intended by its manufacturer for use as a driving lamp on passenger cars; its size is consistent with that type of lamp. But without further information I'm afraid we can be of no greater assistance.

Sincerely,

Frank Berndt Chief Counsel

Reference # 3-1538

September 27, 1983

P. T. Miller 90 W. 79th Avenue Liberty Square P. 0. Box G Merriville, Indiana 46410

Dear Mr. Miller:

This is in response to your letter about standards for sizes of motorcycle headlights.

I was unable to locate information on Department of Commerce standards in this area. However, Mr. Taylor Vinson of the Chief Counsel's Office of the National Highway Traffic Safety Administration advised me that Federal transportation laws and standards have been under the jurisdiction of that agency since 1969. He asked me to send him a copy of your letter so that he could investigate your question and answer you directly.

Any further requests on this matter should be sent to:

Taylor Vinson Office of Chief Counsel, Room 5219 National Highway Traffic Safety Administration 400 7th Street, S.W.

Washington, D. C. 20590 (202) 426-9511

Sincerely,

Christopher Benya Office of Consumer Affairs

cc: Taylor Vinson

September 9, 1983

Department of Commerce 14th St. East St. Northwest Room 5725 Washington D. C. 20230

Attention: Lee Gray Director of Consumer Affairs

RE: Our File No. 8-309072-1 Our Insured: Thomas Daniels Loss of: 8-12-83

Dear Mr. Gray:

I am investigating a serious accident involving an automobile and a motorcycle and the investigating police officer in his report stated that the light on the motorcycle was a custom light approximately 2 1/2" by 5" and was smaller that a stock light.

A check of the Indiana Statute regarding lamps or reflectors on motorcycles states that no motorcycles shall be operated on public streets or highways by a resident of this state that is not equipped with a lamp or reflectors meeting the standards of the US Dept. of Commerce as amended. You will note that they refer to the standards set by the Department of Commerce.

If you could forward to this office a copy of the directive showing the standards of headlights required on motorcycles that the Indiana Law refers to.

Your help will be greatly appreciated.

Very truly yours,

P. T. Miller Asst. Distr. Claim Manager

66 E. SOUTH WATER ST./CHICAGO, IL 60601/(312) 372-1818