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Notice

Trends in the Static Stability Factor of Passenger Cars, Light Trucks, and Vans Technical Report

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Information about this document as published in the Federal Register.

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AGENCY:

National Highway Traffic Safety Administration (NHTSA), Department of Transportation.

ACTION:

Request for comments on technical report.

SUMMARY:

This notice announces NHTSA's publication of a technical report evaluating the changes over time in static stability factor in passenger vehicles. The report's title is: Trends in the Static Stability Factor of Passenger Cars, Light Trucks, and Vans.

DATES:

Comments must be received no later than November 10, 2005.

ADDRESSES:

Report: The entire report is available on the Internet for viewing online in HTML and PDF format at http://www.nhtsa.dot.gov/​cars/​rules/​regrev/​evaluate/​809868/​pages/​index.html. You may also obtain copies of the reports free of charge by sending a self-addressed mailing label to Marie C. Walz (NPO-131), National Highway Traffic Safety Administration, 400 Seventh Street, SW., Washington, DC 20590.

Comments: You may submit comments [identified by DOT DMS Docket Number NHTSA-2005-21784] by any of the following methods:

  • Web site: http://dms.dot.gov. Follow the instructions for submitting comments on the DOT electronic docket site.
  • Fax: 1-202-493-2251.
  • Mail: Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-001.
  • Hand Delivery: Room PL-401 on the plaza level of the Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal Holidays.

You may call Docket Management at 202-366-9324 and visit the Docket from 10 a.m. to 5 p.m., Monday through Friday.

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FOR FURTHER INFORMATION CONTACT:

Marie Walz, Evaluation Division, NPO-131, National Center for Statistics and Analysis, National Highway Traffic Safety Administration, Room 5208, 400 Seventh Street, SW., Washington, DC 20590. Telephone: 202-366-5377. FAX: Start Printed Page 40417202-366-2559. E-mail: mailto: MWalz@nhtsa.dot.gov.

For information about NHTSA's evaluations of the effectiveness of existing regulations and programs: Visit the NHTSA Web site at http://www.nhtsa.dot.gov/​cars/​rules/​regrev/​evaluate.

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SUPPLEMENTARY INFORMATION:

Rollover crashes kill more than 10,000 occupants of passenger vehicles each year. As part of its mission to reduce fatalities and injuries, since model year 2001 NHTSA has included rollover information as part of its New Car Assessment Program ratings. One of the primary means of assessing rollover risk is the static stability factor (SSF), a measurement of a vehicle's resistance to rollover. The higher the SSF, the lower the rollover risk. This report tracks the trend in SSF over time, looking in particular at changes in various passenger vehicle types.

Data are presented for average SSFs by vehicle type over a number of model years. Passenger cars, as a group, have the highest average SSF, and these have remained high. SUVs have substantially improved their SSF values over time, especially after model year 2000, whereas those of pickup trucks have remained consistent over the years. Minivans showed considerable improvement since they were first introduced, while full-size vans showed a small but steady improvement. In model year 2003, the sales-weighted average SSF was 1.41 for passenger cars, 1.17 for SUVs, 1.18 for pickup trucks, 1.24 for minivans, and 1.12 for full-size vans.

How Can I Influence NHTSA's Thinking on This Subject?

NHTSA welcomes public review of the technical report and invites reviewers to submit comments about the data and the statistical methods used in the analyses. NHTSA will submit to the Docket a response to the comments and, if appropriate, additional analyses that supplement or revise the technical report.

How Do I Prepare and Submit Comments?

Your comments must be written and in English. To ensure that your comments are correctly filed in the Docket, please include the Docket number of this document (NHTSA-2005-21784) in your comments.

Your primary comments must not be more than 15 pages long (49 CFR 553.21). However, you may attach additional documents to your primary comments. There is no limit on the length of the attachments.

Please send two paper copies of your comments to Docket Management, submit them electronically, or fax them. The mailing address is U. S. Department of Transportation Docket Management, Room PL-401, 400 Seventh Street, SW., Washington, DC 20590. If you submit your comments electronically, log onto the Dockets Management System Web site at http://dms.dot.gov and click on “Help” to obtain instructions. The fax number is 1-202-493-2251.

We also request, but do not require you to send a copy to Marie Walz, Evaluation Division, NPO-131, National Highway Traffic Safety Administration, Room 5208, 400 Seventh Street, SW., Washington, DC 20590 (alternatively, FAX to 202-366-2559 or e-mail to MWalz@nhtsa.dot.gov). She can check if your comments have been received at the Docket and she can expedite their review by NHTSA.

How Can I Be Sure That My Comments Were Received?

If you wish Docket Management to notify you upon its receipt of your comments, enclose a self-addressed, stamped postcard in the envelope containing your comments. Upon receiving your comments, Docket Management will return the postcard by mail.

How Do I Submit Confidential Business Information?

If you wish to submit any information under a claim of confidentiality, send three copies of your complete submission, including the information you claim to be confidential business information, to the Chief Counsel, NCC-01, National Highway Traffic Safety Administration, Room 5219, 400 Seventh Street, SW., Washington, DC 20590. Include a cover letter supplying the information specified in our confidential business information regulation (49 CFR Part 512).

In addition, send two copies from which you have deleted the claimed confidential business information to Docket Management, Room PL-401, 400 Seventh Street, SW., Washington, DC 20590, or submit them electronically.

Will the Agency Consider Late Comments?

In our response, we will consider all comments that Docket Management receives before the close of business on the comment closing date indicated above under DATES. To the extent possible, we will also consider comments that Docket Management receives after that date.

Please note that even after the comment closing date, we will continue to file relevant information in the Docket as it becomes available. Further, some people may submit late comments. Accordingly, we recommend that you periodically check the Docket for new material.

How Can I Read the Comments Submitted by Other People?

You may read the comments by visiting Docket Management in person at Room PL-401, 400 Seventh Street, SW., Washington, DC from 10 a.m. to 5 p.m., Monday through Friday.

You may also see the comments on the Internet by taking the following steps:

A. Go to the Docket Management System (DMS) Web page of the Department of Transportation (http://dms.dot.gov).

B. On that page, click on “Simple Search.”

C. On the next page ((http://dms.dot.gov/​search/​searchFormSimple.cfm/​) type in the five-digit Docket number shown at the beginning of this Notice (21784). Click on “Search.”

D. On the next page, which contains Docket summary information for the Docket you selected, click on the desired comments. You may also download the comments.

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Authority: 49 U.S.C. 30111, 30168; delegation of authority at 49 CFR 1.50 and 501.8.

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Dennis Utter,

Acting Associate Administrator for the National Center for Statistics and Analysis.

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[FR Doc. 05-13714 Filed 7-12-05; 8:45 am]

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