Ministry of Transportation

Technical Publications

Designated Sources for Materials (DSM)

The DSM is the Ministry of Transportation's official list of pre-qualified products and vendors for use on MTO highway capital projects. The individual DSM lists are contained within the Designated Sources for Materials (DSM) manual. MTO manages the editing and publishing of the individual DSM Lists via The Road Authority (TRA).

Select the link below to access and download copies of the complete manuals and associated revision packages.


Copies of the individual DSM Lists can be obtained from the TRA website at

SydneyEnterprise v4.3.3.45 - TechPubs