As arranged with your offices, unless you publicly announce its contents earlier, we plan no further distribution of this report until 30 days after the date of this letter. At that time, we will send copies of this report to the Honorable Norman Y. Mineta, Secretary of Transportation and the Honorable Robert Shelton, Acting Administrator of the National Highway Traffic Safety Administration. We will also make copies available to others on request.

If you have any questions about the report, please contact me at (202) 512-2834. Key contributors to this report were Samer Abbas, Bert Japikse, David Lehrer, John Rose, and Glen Trochelman.

Sincerely yours,

Phyllis F. Scheinberg
Director, Physical Infrastructure Issues