THE NATIONAL ACADEMIES

Advisers to the Nation on Science, Engineering, and Medicine

National Academy of Sciences

National Academy of Engineering

Institute of Medicine

National Research Council

January 14, 2002

The Honorable Jeffrey W.Runge

Administrator

National Highway Traffic Safety Administration

U.S. Department of Transportation

400 7th Street, SW, Room 5320 Washington, DC 20590

Dear Dr. Runge:

We are pleased to deliver this letter report to you. It assesses the methodology used to estimate the potential for fuel economy gains in the National Research Council’s (NRC) report Effectiveness and Impact of Corporate Average Fuel Economy (CAFE) Standards, which was released in prepublication form in July 2001.

The NRC undertook this additional effort because, following the July 2001 release of the CAFE report, we heard criticism from some parties that the methodology was fundamentally flawed. This letter report confirms that the methodology was quite valid. The committee that prepared the CAFE report continued to refine its analysis, and the estimates are slightly different, but the conclusions and recommendations are essentially unchanged. We have incorporated these refinements (and letter report itself) into the final CAFE report, which we expect to deliver by about the end of January.

We plan to release this letter report to the public at 9:00 a.m. on Wednesday, January 16. At that time, copies will also be made available to news reporters, and the report will be posted on the National Academies web site.



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THE NATIONAL ACADEMIES Advisers to the Nation on Science, Engineering, and Medicine National Academy of Sciences National Academy of Engineering Institute of Medicine National Research Council January 14, 2002 The Honorable Jeffrey W.Runge Administrator National Highway Traffic Safety Administration U.S. Department of Transportation 400 7th Street, SW, Room 5320 Washington, DC 20590 Dear Dr. Runge: We are pleased to deliver this letter report to you. It assesses the methodology used to estimate the potential for fuel economy gains in the National Research Council’s (NRC) report Effectiveness and Impact of Corporate Average Fuel Economy (CAFE) Standards, which was released in prepublication form in July 2001. The NRC undertook this additional effort because, following the July 2001 release of the CAFE report, we heard criticism from some parties that the methodology was fundamentally flawed. This letter report confirms that the methodology was quite valid. The committee that prepared the CAFE report continued to refine its analysis, and the estimates are slightly different, but the conclusions and recommendations are essentially unchanged. We have incorporated these refinements (and letter report itself) into the final CAFE report, which we expect to deliver by about the end of January. We plan to release this letter report to the public at 9:00 a.m. on Wednesday, January 16. At that time, copies will also be made available to news reporters, and the report will be posted on the National Academies web site.

OCR for page R1
We appreciate the opportunity to have been of service. If you have any questions, please do not hesitate to call me at 202–334–3000. Sincerely, E.William Colglazier Executive Officer National Research Council/National Academy of Sciences cc: Kenneth R.Katz, CORT DOT/National Highway Safety Administration Office of Planning and Consumer Programs (NPS-30) 400 7th Street, SW, Room 5320 Washington, DC 20590 202–366–0842