The Office of Project Letting is a unit of the Technical Services Traffic-Roadway Section, and contains several functions: Specifications, Estimating, Office of Pre-Letting, Quality Assurance for Design, as well as other staff including Administrative, Technical Services Web Master and Trans*Port Administration.

Specifications provides specification related training and mentoring, special provision assistance, interpretation, and modification and is the Specification liaison to DOJ. It also provides resources to help with utilization of special contracting methods (A+B, A+C, I/D, etc.) and is accountable for compliance to ODOT/DOJ class exemption.