FHWA-Western Federal Lands Highway Division
Vancouver,
Washington
View Accreditation Certificate
Walt
Stong
610 East Fifth Street
Vancouver
,
Washington
98661-3801
Phone: (360) 619-7747
Fax:
walter.stong@dot.gov
Quality Management System - accredited since 12/1/1989
R18, ISO/IEC 17025
Asphalt Binder - accredited since 3/15/2000
R28, T49, T51, T240, T301, T313, T315, T316, T350, D7405, D7553
Emulsified Asphalt - accredited since 4/1/2002
T59 (Cement Mixing)
T59 (Particle Charge)
T59 (Residue by Distillation)
T59 (Residue by Evaporation)
T59 (Sieve Test)
Asphalt Mixture - accredited since 12/1/1989
R47, T30, T166, T209, T269, T275, T308, T312, T329, T331, D1188, D2041, D2726, D3203, D5444, D6307, D6752, D6925
Soil - accredited since 12/1/1989
R58, R74, T88, T89, T90, T99, T100, T180, T190, T208, T216, T236, T265, T267, T288, T289, D421, D422, D698, D1140, D1557, D2166, D2216, D2435, D2487, D2844, D2974, D4318, D4972, G57
Rock - accredited since 6/11/2020
D5731, D7012 (without D4543 sample preparation)
Aggregate - accredited since 12/1/1989
R76, T11, T19, T21, T27, T37, T84, T85, T96, T104, T112, T176, T210, T255, T304, T335, C29, C40, C88, C117, C127, C128, C131, C136, C142, C566, C702, C1252, D546, D2419, D3744, D4791, D5821
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 1/19/2021. Please visit http://www.aashtoresource.org for current accreditation status.
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