Interpretation ID: nht94-6.32

DATE: April 14, 1994

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Carol I. Morton -- Administrative Assistant, Equipment and Standards Review Unit, Washington State Patrol (Olympia, WA)

TITLE: None

ATTACHMT: Attached to letter dated 3/25/94 from Roger W. Bruett (signed by Carol I. Morton) to Chief Council, NHTSA (OCC 9822)

TEXT:

We have received your letter asking whether the Hella Xenon headlamps being installed on BMW 750 passenger cars "are legal for use on motor vehicles."

The Hella Xenon units on the BMW 750 series cars represent the first application of high-intensity discharge (HID) headlamps on motor vehicles. This new technology is permitted by Standard No. 108, as indicated by the test report from ETL Testing Laboratories that you reference in your letter.

We have no information as to whether the specific BMW headlamp system actually complies with Standard No. 108 because we have not tested it. BMW's certification of compliance that is affixed to all 750s raises the presumption that the BMW HID system meets Federal requirements.

A HID system may emit light that is perceived to be somewhat whiter than emitted by conventional headlamps. It may also be perceived as "stronger", to use your word, but a properly aimed HID system should create no more discomfort glare in the eyes of an oncoming driver than a conventional one.