Interpretation ID: nht93-3.43

DATE: May 13, 1993 EST

FROM: Shawn Shieh -- Ventures International USA

TO: Office Enforcement -- NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 6-8-93 from John Womack to Shawn Shieh (A41; Std. 108); Also attached to letter dated 8-17-89 from Stephen P. Wood to Alan S. Eldahr (Std. 108)

TEXT: My name if Shau Shieh. My company has a patent pending emergency communication product. It is intended for use inside automobils. It is needs to be mounted in the back window of an automobile permanently. I would like to find out what are the restrictions and specifications I have to follow.

The product uses Light Emitting Diodes to form any emergency messages and intend from drivers from behind to read. It is to promote safe driving and to call for speedy help. I know it cannot be read or yellow in color. But I am not sure what is the maximum size of a permanent structure to be installed in an automobil. What about the matterial of the base support and wiring restrictions. Can you please help me? Where can I find these information: What other government agency I have to go through? Are these information available in local central library? I hope to hear from soon. Thank you very much?