Prequalified Materials and New Product Approvals




Approvals of products or materials for use on KDOT projects depend on the type of product or material and whether it is currently referenced in the plans and/or specifications.  Products or materials currently fall into three categories-those accepted on certification, those that must be prequalified, and those requiring both certification and prequalification.  KDOT retains the right at any time to approve products and materials for any KDOT purposes.

Producers and vendors interested in supplying products and materials for use by KDOT should obtain a copy of the KDOT Standard Specifications from the Bureau of Construction  and Maintenance (785-296-3576), review it and the related Special Provisions and review the  current Pre-Qualified Materials List to determine how their product or material is being used in current operations.

If your product meets a current specification that does not require prequalification then it may be supplied to contractors for use on KDOT projects with proper certification.

If your product meets a current specification that requires prequalification, please submit paperwork and any required samples to Kyle Larson, Ph.D., P.E., Materials and Research Center, 2300 SW  Van Buren Street, Topeka, KS 66611-1195 for testing. Include the name and e-mail address of the preferred contact  person so that KDOT can provide an e-mail confirmation upon receipt of  submitted items.

If you have questions about whether your product meets or may meet a current specification, please contact Stacey Lowe, P.E.,  Materials Management Engineer, Bureau of Construction and Materials at or 785-296-3899.


If your product is different than those described in the specifications and you wish to introduce it to KDOT for review and evaluation by the New Products Committee, please submit  two completed copies of KDOT Form No. 1190  to address shown on the form. (Adobe Acrobat Reader required. Download from This button is a link to download the Adobe Acrobat Reader) We recommend that you submit a product engineering package, marketing brochure, test data and other appropriate information along with the completed  forms. Please contact: Susan Barker, P.E., Technology Transfer Engineer (785-291-3847 or if  you need assistance.