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                Safety Eligibility Letter WZ-254
  
  **Hardware Type:**
            Work Zone Devices
                          **Code:**
            WZ-254
                          **Date:**
            04/10/2007
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            Alucobest
                          **Device Description:**
            Aluminum laminate substrate -- 2 mm and 3 mm
                          **View PDF:**
            wz254-Alucobest.pdf (1012.55 KB)
    
    
Skip to contentSkip to contentUnited States Department of Transportation - Federal Highway AdministrationApril 10, 2007
In Reply Refer To:

HSSD/WZ-254
Mr. Peter
  Nee
Dymalon,
  Inc.
9592 Deereco Road
Timonium,
  MD 
  21093
Dear Mr. Nee:
Thank you for your correspondence requesting the Federal
  Highway Administration's (FHWA) acceptance of Alucobest 2 mm and 3 mm thick
  sign substrate.  Accompanying your letter
  were product specification certificates.  You requested acceptance of Alucobest as a sign substrate for use with
  accepted sign stands on the National Highway System (NHS) under the provisions
  of the National Cooperative Highway Research Program (NCHRP) Report 350
  "Recommended Procedures for the Safety Performance Evaluation of Highway
  Features."
Upon request, you provided a sample of the Alucobest sign
  substrate to the FHWA and a copy of the product specifications.  The Alucobest sign substrate is a brand name
  of aluminum laminate material.  The
  material properties of your 2 mm and 3 mm Alucobest substrate are nearly identical
  and considered to be equivalent to other previously accepted 2 mm and 3 mm
  aluminum laminate sign substrates.  Our
  records indicate that 2 mm, 3 mm, and 4 mm aluminum laminate signs have been
  successfully crash tested on portable stands made by a number of manufacturers
  and are limited to use on the tested and accepted stands.  Therefore, the FHWA accepts the use of Alucobest
  2 mm and 3 mm aluminum laminate sign substrates for use on the NHS under the
  range of conditions that equivalent materials have been tested and accepted,
  when proposed by a State.
Please note the following standard provisions that apply to the
  FHWA letters of acceptance:
·        This acceptance is limited to the
  crashworthiness characteristics of the devices and does not
cover
  their structural features, nor conformity with the Manual on Uniform Traffic
  Control Devices.
·        Any changes that may adversely influence the
  crashworthiness of the device will require a
new acceptance letter.
·        Should the FHWA discover that the qualification
  testing was flawed, that in-service
performance reveals unacceptable
  safety problems, or that the device being marketed is
significantly
  different from the version that was crash tested, it reserves the right to
  modify or revoke its acceptance.
·        You will be expected to supply potential users
  with sufficient information on design and
installation requirements to
  ensure proper performance.
·        You will be expected to certify to potential
  users that the hardware furnished has essentially
the
  same chemistry, mechanical properties, and geometry as that submitted for
  acceptance, and that they will meet the crashworthiness requirements of the
  FHWA and the NCHRP Report 350.
·        To prevent misunderstanding by others, this
  letter of acceptance, designated as number
WZ-254,
  shall not be reproduced except in full.  This letter, and the test documentation upon which this letter is based,
  is public information.  All such letters
  and documentation may be reviewed at our office upon request.
·        The Alucobest
  material is a patented product and considered proprietary.  If proprietary devices are specified by a
  highway agency for use on Federal-aid projects, except exempt, non-NHS projects,
  they: (a) must be supplied through competitive bidding with equally suitable
  unpatented items; (b) the highway agency must certify that they are essential
  for synchronization with the existing highway facilities or that no equally
  suitable alternative exists; or (c) they must be used for research or for a distinctive
  type of construction on relatively short sections of road for experimental
  purposes.  Our regulations concerning
  proprietary products are contained in Title 23, Code of Federal Regulations,
  Section 635.411.
This acceptance letter shall not be construed as
  authorization or consent by the FHWA to use, manufacture, or sell any patented
  device for which the applicant is not the patent holder.  The acceptance letter is limited to the
  crashworthiness characteristics of the candidate device, and the FHWA is
  neither prepared nor required to become involved in issues concerning patent
  law.  Patent issues, if any, are to be
  resolved by the applicant.
Sincerely
  yours,
John R. Baxter
John R. Baxter,
  P.E.
Director, Office
  of Safety Design
Office of Safety
Enclosure
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