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"“…if you do everything that the AASHTO accreditation requires you to do, if you execute all of the requirements of [AASHTO re:source], you will have a well-run laboratory."

Florida Department of Transportation

Tim Ruelke, P.E., Director, Office of Materials

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

Enhancing Transparency in the Document Library

Mar 17, 2026

Based on feedback from the 2026 AASHTO re:source Technical Exchange, we have made improvements to our Document Library. Documents now display their last modified date, with “Updated” and “New” badges highlighting recent changes to make it easier to find current content.

Please note that in September 2025, the majority of documents were retitled and reorganized; as a result, the modified date may not always reflect the actual revision date within the document.

These enhancements support our 2024-2027 Roadmap by increasing transparency, acting on stakeholder feedback, and reinforcing our commitment to continual improvement.