DMS-11030 specifies the materials for Rigid Metal Conduit (RMC), Polyvinyl Chloride Conduit (PVC), and High Density Polyethylene Conduit (HDPE). Conduits that meet the material specification are listed by their types under Item 618 in the MPL for Roadway Illumination and Electrical Supplies.

DMS-11030 also contains specifications for conduit fittings and junction boxes. These materials are not listed on the MPL, but compliance with the specifications should be verified in the field.