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

Becoming AASHTO re:source

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. What started with laboratory assessments and proficiency samples, expanded with the creation of the AASHTO Accreditation Program. More recently, we’ve responded to customer needs by providing learning tools and being industry advocates. In cooperation with the FHWA and Harpers Enterprise, we’ve also created customized training for state engineers. Now, we are launching our first-ever Technical Exchange in March 2017, as an opportunity for the industry to learn from subject matter experts and share ideas with their peers.

This natural evolution has prompted us to rework the way we present ourselves to our customers. The AASHTO re:source name is part of a larger rebranding effort and reflects our evolution over the past 50 years.

Although the AMRL name has changed, the AASHTO Accreditation Program name has remained the same. Agencies requiring AASHTO accreditation do not need to reword their specifications.

AASHTO re:source will continue to respond to customer needs for assessments, proficiency samples, accreditation, and more. We remain committed to being a resource to our customers by making our expert knowledge more accessible through on-line and on-site training, relevant articles and more.

If you have questions regarding this change that are not answered here, please contact us at or 240-436-4900.

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Why did you change your name to AASHTO re:source?
The name change was part of a larger rebranding effort. In the last 50 years, our programs and services have evolved. The name AASHTO re:source reflects this evolution and more closely describes our role within the industry. Plus, we know how difficult it was to get the name AMRL right..
Does this impact my laboratory’s AASHTO accreditation?
No. The AASHTO Accreditation Program has retained its name, so the change to AASHTO re:source does not impact AASHTO-accredited laboratories.

In addition, agencies requiring AASHTO accreditation should not need to reword their specifications.

However, if you provide customers with a direct link to your accreditation listing, make sure it is updated on our current site.
I was a registered laboratory on Do I need to re-register on
No. Customers do not need to re-register their laboratory. Your existing login information will grant you access to the new site.
Can I continue to use my marketing material with the names “AMRL” or “AASHTO Accreditation” on it?
Any reference to AMRL should be replaced with AASHTO re:source.
The AASHTO Accreditation Program's name has remained the same. Accredited laboratories should continue to follow the AASHTO Accreditation Publicity Policies. More details can be found in the article, How to Publicize Your AASHTO Accreditation.
Did your billing or banking information change too?
No. Our billing and banking information has remained the same.
Do I need to obtain a new W-9 from your company?
No. The W-9 we provide comes from our parent organization, AASHTO, and has not changed.