Programs that work for you

"They are rigorous, they’re about making sure our labs, personnel, and test methods conform, that they’re in compliance. They’re independent, not driven by a vendor or a construction company.”

California Department of Transportation

Philip Stolarski, Former Deputy Division Chief, DES-METS & GS 

55+ years of experience
PSP participants
samples shipped per year
laboratory assessments per year
accredited labs

  • Adding Rock Scope to Programs

    Jul 31, 2018
    On August 6, 2018, the AASHTO Accreditation and Laboratory Assessment Programs will be adding a new Rock scope to their programs. We will be moving the some methods from the Soils scope to the Rock scope. This additional scope will not impact the cost of an on-site assessment or your laboratory’s AASHTO Accreditation status. It will only change how these tests are listed on your laboratory’s assessment reports, request forms, and accreditation listing/certificate of accreditation.
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  • Coming Soon: Updates to Accreditation Events System

    Jun 14, 2018
    In the coming weeks we will release changes designed to make it quicker and easier for you to respond to nonconformities.
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  • New Texas Methods Added to Scope

    Jan 10, 2018
    We are pleased to announce that we have added the Texas Methods, Tex-148-e and Tex-113-E, to our scope of assessments and accreditation.
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  • Find AASHTO Accredited Laboratories More Easily

    Jan 04, 2018
    Project owners can now use an interactive map to find AASHTO Accredited laboratories across city and state lines.
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  • AASHTO Accreditation Deadlines Changed from 90 to 60 days

    Jan 04, 2018
    The deadline for submitting corrective actions and supporting documentation is now 60 days from the date the final report was issued. This change impacts both AASHTO re:source and CCRL on-site assessments.
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