Results found: 1

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:
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 for current accreditation status.