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U.S. Department of Transportation

Federal Highway Administration

400 Seventh St., S.W.
Washington, D.C. 20590

November 20, 2006

Refer to: HSA-10/WZ-246

Mr. Barry Stephens. P.E.
Sr. Vice President, Engineering
Energy Absorption Systems, Inc.
3617 Cincinnati Avenue
Rocklin. CA 95678

Dear Mr. Stephens:

Thank you for your October 16 letter requesting Federal Highway Administration (FHWA) acceptance of your company's RubberTough double vertical panel as a crashwol1hy traffic control device for use in work zones on the National Highway System (NHS). Accompanying your letter was the FHW A Office of Safety Design form and test report documentation including a DVD compilation of relevant crash tests conducted by E-Tech Testing Services, You requested that we find this double vertical panel acceptable for use on the N"HS under the provisions of National Cooperative Highway Research Program Report 350 "Recommended Procedures for the Safety Performance Evaluation of Highway Features."

This letter is the acknowledgement of the FHWA's acceptance of your request. The original completed form has been modified by the addition of tile FHWA acceptance letter number and the date of our review, along with minor editorial changes. The form, of which a copy is enclosed for reference, will be posted on our website in the near future.

Thank you for working with us as we institute this new review and acceptance process.

Sincerely yours,

/original signed by /

John R. Baxter, P.E.
Director, Office of Safety Design
Office of Safety


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