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Florida Department of Transportation

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

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2026 Updates to AASHTO R 18

Jul 31, 2026

AASHTO R 18 has undergone a significant revision through several years of balloting through the AASHTO Committee on Materials and Pavements (COMP).

AASHTO re:source and CCRL will officially start assessing testing agency conformance to the updated requirements specified in AASHTO R 18-26 beginning January 1, 2027. A testing agency may implement the changes prior to January 1, 2027, but it should notify the assessor about the implementation prior to the on-site assessment to avoid confusion.

Review the Summary of Changes document for full details.