Hubbell, Roth & Clark, Inc.
Troy,
Michigan
View Accreditation Certificate
William
West
629 E Elmwood Ave
Troy
,
Michigan
48083
Phone: (248) 454-6565
Fax:
wwest@hrcengr.com
http://www.hrcengr.com
Quality Management System - accredited since 5/27/2025
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Asphalt Mixture)
Asphalt Mixture - accredited since 9/26/2025
D2041, D2726, D3203, D5444, D6307, D6925
Aggregate - accredited since 5/27/2025
C117, C127, C128, C136, C566, C702
Concrete - accredited since 5/27/2025
C31 (Cylinders), C39, C138, C143, C172, C231, C511, C1064, C1231 (7000 psi and below)
Please note that our accreditations do not include an expiration date. An accreditation only expires when the laboratory fails to comply with our accreditation requirements.
* This information is only valid as of 10/27/2026. Please visit https://aashtoresource.org for current accreditation status.
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