Three Notch Group, Inc.
Huntsville,
Alabama
View Accreditation Certificate
Zach
Howard
6767 Old Madison Pike
#400
Huntsville
,
Alabama
35806
Phone: (256) 338-6381
Fax:
zach.howard@cdge.com
http://www.cdge.com
Quality Management System - accredited since 2/4/2020
R18, C1077 (Aggregate), C1077 (Concrete), D3740 (Soil)
Soil - accredited since 6/24/2020
D421, D422, D698, D1140, D1556, D1557, D2216, D2487, D2488, D4318, D4718, D6913, D6938
Rock - accredited since 7/5/2023
D7012 (Method C without D4543 sample preparation)
Aggregate - accredited since 2/4/2020
C117, C127, C128, C136, C566, C702, D75
Concrete - accredited since 2/4/2020
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 7/10/2025. Please visit https://aashtoresource.org for current accreditation status.
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