QCTS is an AASHTO accredited Laboratory in the following Quality management systems and test methods:
AASHTO Quality Management System –
R18, D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil)
Asphalt Mixture –
R47, R97, T30, T166 (Cores), T209, T269, T308, T355, D979, D2041, D2726 (Cores), D2950, D3203, D5444, D6307
Soil –
R58, T89, T90, T180, T191, T265, T310, D421, D1556, D1557, D2216, D4318, D6938
Aggregate –
R76, R90, T11, T27, T84, T85, T176, T335, C117, C127, C128, C136, C702, D75, D2419, D5821
Verify accrediation through AASHTO:
https://aashtoresource.org/accreditation-details?LaboratoryID=NDDuoYSgEmw*V