Search the Directory of AASHTO Accredited Testing and Inspection Agencies
The dates displayed beside the field of accreditation correspond to the year of initial accreditation in that field.
Search by either Laboratory Name or
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 firstname.lastname@example.org
or call 240-436-4900.