Interpretation ID: nht94-1.44

TYPE: Interpretation-NHTSA

DATE: February 7, 1994

FROM: Jeffrey D. Shetler -- Manager of Government Relations, Kawasaki Motors Corp., U.S.A.

TO: Associate Administrator for Enforcement -- NHTSA

TITLE: Motorcycle Projector Beam Headlamps Interpretation of FMVSS 108

ATTACHMT: Attached to letter dated 5/6/94 from John Womack to Jeffrey D. Shetler (A42; Std. 108)

TEXT:

Kawasaki Motors Corp., U.S.A. is hereby requesting a interpretation from NHTSA regarding the application of a projector beam headlamp to a motorcycle and its compliance with FMVSS 571.108.

When reviewing FMVSS 108 we are not sure if our proposed application of a projector beam headlamp to a motorcycle will meet the specified requirements. Your response regarding the following questions would be greatly appreciated:

1. Table IV of FMVSS 108 specifies that if two (headlamps) are used they shall be symmetrically disposed about the vertical centerline.

Attached is a layout drawing which provides a general description of our proposed application of a projector beam headlamp. Our headlamp is not completely aligned symmetrically because the projector beam (lower beam) is located on the left side and the high beam is on the right side. However, the outer lens of the headlamp assembly is symmetrically positioned about the vertical centerline.

Question: Is our headlamp in compliance with the provision stated above?

2. Section S5.1.1.23 of FMVSS 108 indicates that instead of the headlamps specified by Table III, a motorcycle may be equipped with one half of any headlighting system specified in S7 which provides both a full upper beam and full lower beam, and where more than one lamp must be used, the lamp shall be mounted vertically, with the lower beam as high as practicable.

Question: Does this requirement mean our proposed projector beam shall be mounted on the upper half and the high beam shall be on the lower half when using one half of any headlighting system specified in S7? Or, is our proposed layout in the attachmen t acceptable?

Thank you in advance for your timely response to our questions. If further information is required, I can be reached at (714) 770-0400 ext. 2456.