Interpretation ID: nht93-3.15

DATE: April 23, 1993 EST

FROM: Patrick P. Radice -- Director of Operations, Electronics Division, Tridon

TO: Chief Counsel -- U.S. Department of Transportation, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 5-5-93 from John Womack to Patrick P. Radice (A41; Std. 108)

TEXT: We understand aftermarket manufacturers of turn signal flashers and hazard warning signal flashers must certify their flashers comply with the applicable requirements specified in FMVSS-108 prior to sale.

For vehicles having combination turn signal/hazard warning signal flashers, must the manufacturer certify the aftermarket flasher also meet both the turn signal and hazard warning flasher requirements of FMVSS-108 or can they certify their flashers to meet either the turn signal flasher or hazard warning signal flasher or FMVSS-108 but not both?

I look forward to your response.