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"“…if you do everything that the AASHTO accreditation requires you to do, if you execute all of the requirements of [AASHTO re:source], you will have a well-run laboratory."

Florida Department of Transportation

Tim Ruelke, P.E., Director, Office of Materials

55+ years of experience
PSP participants
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accredited labs


Notice of False Claims of Accreditation

Aug 18, 2023

The following has been added to our False Claims of Accreditation page. Please visit that page for a current list of any known false claims of AASHTO Accreditation.

August 18, 2023: 1836 Engineering in Fort Worth, Texas falsely claims the following information on its website: “With our AASHTO accredited laboratories, we can provide the following:” 1836 Engineering is not enrolled in any programs of AASHTO re:source and has no AASHTO Accredited laboratories.

If you believe a laboratory is falsely claiming AASHTO Accreditation, please contact Brian Johnson (bjohnson@aashtoresource.org or 240-436-4820).

To avoid unintentionally misstating your laboratory's accreditation status, review our Policy on Publicizing Your AASHTO Accreditation.