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, Former Deputy Division Chief, DES-METS & GS 

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60+ years of experience
3,000+
PSP participants
23,000+
samples shipped per year
1,000
laboratory assessments per year
2,100+
accredited labs



re_news

Remote Assessment Now Available for DSA Special Inspection Program (SIP)

Jun 01, 2026
In continued coordination with the California Division of the State Architect (DSA), AASHTO re:source is pleased to announce the availability of remote assessments for Special Inspection Program (SIP) evaluations. This change in format offers greater flexibility because the remote SIP assessment can be completed at any time, rather than solely at the time of the on-site assessment.
The Special Inspection Program (SIP) is specifically intended for laboratories seeking to meet or maintain DSA’s Laboratory Evaluation and Acceptance (LEA) program requirements. 
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