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Quick Access Links

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Videos

  • AASHTO R 18 2026: What Changed and Why It Matters

  • AASHTO re:university Webinar Series: A Behind the Scenes Look at Assessment Scheduling

  • AASHTO re:university Webinar Series: Proficiency Sample Reports Explained

  • AASHTO re:university Webinar Series: Management Review: Your “State of the Laboratory” Address​

  • AASHTO resource Overview


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FEATURED DOCUMENTS

      
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InFocus
  • A Beginner’s Guide to AASHTO Accreditation

    I get asked a lot of questions about all of our programs. Some of the most commonly asked questions are regarding the AASHTO Accreditation Program (AAP). This is understandable, as it can seem like a daunting task for a new laboratory to get the accreditation process started.
    Full story
  • I Received A Low PSP Score, What Next?

    You just received an e-mail notifying you of low PSP ratings. This means that at least one of your scores was more than two standard deviations from the grand average, or that your laboratory did not submit data. (If you want more information on what ratings mean and how we calculate them, please review Proficiency Sample Ratings: Being Average Has Never Been So Good).
    Full story
  • Maintaining AASHTO Accreditation, Maintaining Quality

    Being AASHTO accredited shows that your laboratory is serious about quality. However, the process isn’t over after AASHTO accreditation is initially granted. By maintaining accreditation, you are showing your continued commitment to excellence.
    Full story

Copies of standards can be purchased through the AASHTO Store or ASTM International's Standards & Publications

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