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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55+ years of experience
3,000+
PSP participants
23,000+
samples shipped per year
1,000
laboratory assessments per year
2,000+
accredited labs










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Updated Duty of Care for On-Site Assessments

Apr 13, 2022
As of April 13, 2022, the Duty of Care for On-Site Assessments has been updated. Please review it for the most current information. 

Webpage: aashtoresource.org/lap/duty-of-care
Printer-Friendly version: AASHTO Duty of Care for On-Site Assessments
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