TTL Engineering Services, LLC
Toledo,
Ohio
View Accreditation Certificate
Bernadette
Caris
1915 North 12th Street
Toledo
,
Ohio
43604-5305
Phone: (419) 214-5129
Fax:
bcaris@ttlengservices.com
http://www.ttlengservices.com
Quality Management System - accredited since 5/15/1996
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete)
Asphalt Mixture - accredited since 4/15/1998
R47, R68, T30, T164, T166, T209, T245, T269, T275, T355, D2041, D2172, D2726, D2950, D3203, D3549, D5444, D6926, D6927
Soil - accredited since 10/30/2024
T99, T180, T191, T265, T310, D698, D1556, D1557, D2216, D6938
Aggregate - accredited since 5/15/1996
R76, T11, T19, T21, T27, T84, T85, T96, T104, T112, T113, T255, T304, T335, C29, C40, C88, C117, C123, C127, C128, C131, C136, C142, C535, C566, C702, C1252, D4791, D5821
Sprayed Fire-Resistive Material - accredited since 11/18/2013
E605, E736
Concrete - accredited since 5/15/1996
M201, R39, R60, R100 (Beams), R100 (Cylinders), T22, T24 (Testing Drilled Cores of Concrete), T97, T119, T121, T152, T196, T231 (7000 psi and below), T309, C31 (Beams), C31 (Cylinders), C39, C42 (Testing Drilled Cores of Concrete), C78, C138, C143, C172, C173, C192, C231, C511, C617 (7000 psi and below), C939 (Pre-Mixed), C942 (Pre-Mixed), C1064, C1231 (7000 psi and below), C1542
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 6/5/2026. Please visit https://aashtoresource.org for current accreditation status.
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