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The gold standard for laboratory accreditation in the construction industry

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Programs that work for you

"They are rigorous, they’re about making sure our labs, personnel, and test methods conform, that they’re in compliance. They’re independent, not driven by a vendor or a construction company.”


California Department of Transportation

Philip Stolarski, Deputy Division Chief, DES-METS & GS

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50 years of experience
3,000+
PSP participants
22,000+
samples shipped per year
1,000
laboratory assessments per year
1,900+
accredited labs






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