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Qualified Products List (QPL)

Do not submit application and money prior to contacting the QPL Engineer.

The proprietary Wall Design Review process is temporarily closed to new applications.


The Qualified Products List is compiled by WSDOT's Materials Laboratory.

Search the QPL by selecting a manufacturer or a standard specification.  

The QPL is a database of over 1,300 construction materials that have been pre-approved for use in WSDOT highway construction. Where there is a conflict between the QPL and the contract provisions, the contract provisions shall take precedence over the QPL. WSDOT is not responsible for errors or omissions in the QPL.

Per Washington State Department of Transportation Standard Specification for Road, Bridge and Municipal Construction Section1-06.1(1), this website is considered to be the current QPL.

Products that do not perform or are found to be noncompliant with WSDOT specifications may be removed at any time from the QPL. The product will not be re-entered into the QPL or approved for use in the State of Washington until such time that adherence to the specifications can be verified and the product has undergone satisfactory performance evaluation.

QPL Submittals

Effective January 1, 2017 the Department will only process applications accompanied by an initial payment, by a check, of $250. This will cover the cost to determine what will be required for evaluation of the Product. Once this process is complete; an initial evaluation package will be sent to the applicant. This package will include a request for additional payment as necessary to cover the cost of the evaluation. 

QPL Application Form

Payment can be made either by a check or electronically through the  Materials Evaluation Program (MEP).

For QPL Engineer Evaluation Charges, contact the   QPL Engineer at 360-709-5442 .


HMA Mix Design submittal to the QPL 

HMA Mix Design Submittal Flow Chart

To initiate the HMA mix design submittal process contact the QPL Engineer at 360-709-5442 .

The following forms need to be completed.

WSDOT Standard Practice for HMA Mix Designs QC 8 , Standard Practice for Development of Hot Mix Asphalt Mix Designs, contains information on how to get an HMA Mix Design onto the QPL.

Recycled Concrete Aggregates (RCA) submittal to the QPL

To initiate the RCA Level B/Tier 2 submittal process, contact the QPL Engineer at 360-709-5442.

The following form needs to be completed

WSDOT Standard Practice for HMA Mix Designs QC 9, Approval of Reclamation Facilities of WSDOT Recycled Concrete and Returned Concrete , contains information on how to approve Recycled Concrete Aggregates for Level B/Tier 2.


Do not submit application and money prior to contacting the QPL Engineer

Contractors Guide for Materials Approval Submittal


Questions or comments?

Contact our office  or contact:

Maha Ablson
QPL Engineer
360-709-5442

Pat Norton
Asst. Materials Quality Assurance Engineer
360-709-5443

Rob Molohon
Materials Quality Assurance Engineer
360-709-5441