Accreditation Directory

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Accreditation Directory Search

Name

Location

Scope/Tests

Choose a Scope

Choose a Test

Directory Info Help/FAQ

Reset Search

Location Filter

City/State

USA

Select a State

Choose a City

Radius (mi)

- OR -

Zip Code

Radius (mi)

Information

Please Note

The dates displayed beside the field of accreditation correspond to the year of initial accreditation in that field.

Accreditation listings do not include an expiration date because an accreditation only expires when the laboratory fails to comply with the accreditation requirements. Directory listings are continually updated reflecting changes throughout the day.

If you have a question about the way a standard is listed on the directory, an issue with the location of a laboratory on the map, or any other questions/issues regarding the information in this directory: email aap@aashtoresource.org or call 240-436-4900.

Help using the Directory

To use this directory, select your preferred view, Map or List. Then search the complete directory for a testing laboratory by Name, Location, and/or Scope/Tests.
Enter or select the desired search criteria, then click the dark blue add button (e.g. Filter by Name, Filter byScope or Filter by Country).
To change or remove search criteria, click the X button in desired section or the click the Reset Search button.
View a laboratory’s contact and AASHTO Accreditation details by either clicking the “View Accreditation in new window” link from the Map view, or clicking the + button for that location in the List view. FAQ

Q: What do the numbers in the circle mean?
A: The numbers in the circles indicate the number of laboratories near each other.
Q: The search doesn’t seem to be working. What do I do?
A: Make sure you are clicking the dark blue add button (e.g. Filter byScope, Filter by Standard).
Q: Why can’t I choose a Test?
A: You much first choose a Scope, then a list of Tests will become available.

Using the Accreditation Directory

Search the accreditation directory by using the search menu to the left.

Filter By:

Laboratory Name
Location - Country, State, City w/ Radius, or Zip Code w/ Radius
Testing Scope
Testing Standard

Once you've searched, you can click points on the map to see information about that laboratory. You can also click the 'List' button in the top left to view the searched laboratories in list form. Click the '+' icon on the left of the list beside each laboratory to view more information about the laboratory including contact and accreditation information.

To see your own accreditation, visit your laboratory home page.

If you are a specifier, you can view the accreditation status of laboratories under your supervision using our Specifer Tools.

To use the old directory search click HERE

If you have difficulties with the search or have feedback, please direct them to Brian Johnson at 'bjohnson @ aashtoresource.org'.