National Cooperative Highway Research Program
NCHRP 20-68, U.S. Domestic Scan Topic Outline

Scan topics are due September 30, 2025 by 11:59:59pm EST. Late submittals will not be accepted.

Eligible submitters are limited to employees of state DOTs, AASHTO staff on behalf of an AASHTO committee or council, and FHWA employees.

Submittals that exceed the scope of a Domestic Scan topic will be rejected.

Click here to begin a Domestic Scan Topic Outline submission.

You may contact us with questions via email at MyTRB@nas.edu

Please include “NCHRP Domestic Scan” (included if you click above) or type into the subject line of your message.