Interpretation ID: nht74-1.32

DATE: 05/16/74

FROM: AUTHOR UNAVAILABLE; E. T. Driver; NHTSA

TO: Lt. Commander Robert H. Weldman, Jr.

COPYEE: LARSON; RANADER

TITLE: FMVSS INTERPRETATION

TEXT: This response to your letter of April 17, 1974, to the Department of Transportation requesting information on standards for (Illegible Word) Lighting systems. We have me record of your (Illegible Words)

In answer to your specific questions --

1. "Are there any federal or state regulations which specify sealed beam headlamps?"

Yes, this requirement has been effective either by Federal or State standards for more than three decades.

2. "Are both acceptable?"

A replacable bulb type headlamp is not acceptable.

3. "Is amber a permissible headlight (Illegible Word)

No, headlight must white light.

4. "Is white mandatory for backup lights?"

Yes, white is mandatory.

Sincerely,

ATTACH.

APRIL 17, 1974

U.S. Department of Transportation,

Attn: Federal Standards for Automobiles.

Dear Sirs,

I wrote you on 12 February 1974 to ask for information on Federal and state standards for automobile lighting systems. I have received no reply, so herewith a repeat of my request: are there any federal or state regulations which specify sealed beam headlamps, or are bulbs acceptable? Is amber a permissible headlight color? Is white mandatory for backup lights?

I will appreciate any information you can give me.

Sincerely,

Robert H. Weidman, Jr. -- LCDR USN,

Box 33 B753, FPO NEW YORK 09540