Search By Laboratory Name

Enter the laboratory name in the textbox and click the submit button. If your search does not return the laboratory you are looking for, enter just the first few letter(s) and try again.


Search by Location

Select the appropriate state from the dropdownlist. Select the city in that state, or click 'All Cities' to return all accredited labs in the state.


Search by Scope and Standard

Accredited labs can also be searched by an individual scope and/or by a specific standard within the scope.


To bookmark a single record:

After finding the laboratory you are searching for, click the 'Show this entry only' link under the lab's location. In Internet Explorer, click the star with a green plus sign, or type Alt+Z. In Mozilla Firefox, click the gray star in the location bar, or type Ctrl+D.

Publicizing Your Accreditation

Please follow the AASHTO Accreditation Publicity Policies when displaying the AAP logo.


Search the Directory of AASHTO Accredited Testing and Inspection Agencies

Please Note

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

Search by either Laboratory Name or Location.

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, email or call 240-436-4900.

Laboratory Name


State: City:

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