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Delaware Department of Transportation

Materials and Research Section


Source of Supply Submission


If your product is being utilized as a source for an awarded contract and meets the Specifications, please complete the below Source of Supply template and send to SourceLetters@delaware.gov.

If your product does not meet any of the existing specifications and is a new product/material, please email Steven Peretiatko  or call 302-760-2375.


Guardrail Products, Guardrail End Treatments, Impact Attenuators, and Temporary Traffic Control Devices

In response to the Federal Highway Administration’s requirements to implement the use of roadside and temporary traffic control device hardware crash tested under the Manual for Assessing Safety Hardware (MASH) criteria, DelDOT initiated a MASH Committee, comprised of representatives from the Department with expertise in roadside design, roadside hardware, and temporary traffic control.

New APL categories will be added in the future depending upon device availability. Only devices that are on the Approved Products Lists are permitted for use on roadways in the State of Delaware. Vendors may submit an application (see below) for consideration by the MASH Committee to have devices added to the Approved Products Lists. Please use the links below:

MASH Approved Products List Procedures

MASH Approved Products List Application



 ADA Information
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