New Hampshire Department of Transportation Bureau of Materials & Research Alan Rawson, Administrator AASHTO re:source’s Proficiency Sample Program (PSP) is the largest construction …

Proficiency Sample Program AASHTO re:source’s Proficiency Sample Program (PSP) is the largest construction materials sample program in the world, with a customer base of approximately 3,000 …

AASHTO re:source was established in 1965 as the AASHTO Materials Reference Laboratory (AMRL) at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD (then the National …

AASHTO Accreditation The AASHTO Accreditation Program (AAP) formally recognizes the competency of thousands of testing laboratories to perform specific tests on construction materials. In addition to …

Laboratory Assessment Program The AASHTO re:source Laboratory Assessment Program (LAP) provides assessments of laboratories that perform testing of materials used for construction and the …

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Previous articles on this topic include: "Not Just a Box of Rocks: An Introduction to the AMRL Proficiency Sample Program," "Proficiency Sample Ratings: Being Average Has Never Been So Good," and …

On August 22, 2016, the AASHTO Materials Reference Laboratory (AMRL) became AASHTO re:source. For over 50 years we have been promoting quality in the construction material testing industry.

Aug 5, 2016 · The AMRL was created, and as a department of AASHTO has both government and industry ties. Already the head of CCRL, J. R. Dise was tasked to lead the newly formed AASHTO …

Jan 4, 2018 · Project owners can now use an interactive map to find AASHTO Accredited laboratories across city and state lines. Based on feedback from project owners and customers, we have …