AASHTO Materials Reference Laboratory (AMRL)
Civil EngineeringMaryland, United States2-10 Employees
Based in Frederick, Maryland, AASHTO re:source—formerly the AASHTO Materials Reference Laboratory (AMRL)—has operated for over five decades with a focus on quality in construction material testing. The organization expanded from laboratory assessments and proficiency samples to include the AASHTO Accreditation Program and now provides training, industry advocacy, and learning tools, including customized programs for state engineers developed in partnership with FHWA and Harpers Enterprise. In 2016, the AMRL name was rebranded as AASHTO re:source, while the accreditation program itself remained unchanged, reflecting its evolving role as a resource for assessments, proficiency testing, and accreditation. A notable recent development is the July 2022 digital release of the 42nd edition of the Standard Specifications for Transportation Materials and Methods of Sampling and Testing, alongside AASHTO Provisional Standards, underscoring ongoing updates for practitioners in the civil engineering materials testing field.
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