Office of Materials Technology Qualified Products and Producers

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The qualified product and producer lists posted here​ provide sources of materials and material producers that have been qualified by the Maryland State Highway Administration (SHA) for use on State projects. This page is a reference for source of supply approval and does not imply that materials may be used on SHA projects without normal Quality Assurance (QA) testing and procedures.

Each list item was submitted, tested and approved. Approval procedures are posted with each material category. Contact SHA for any additional information.

When a product or producer is approved or updates/edits are made, an updated copy of the qualified list is posted online. Refer to the date at the bottom-right of the list page for the most recent update.

Please direct any questions concerning each list to the appropriate product or producer manager. See the related material category Product or Producer Qualification Procedure for contact information.

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SHA Specification to Material Index (PDF, 200 KB)

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Material Quality Assurance Processes, Details and Frequencies

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Please select a material category below:

Office of Materials Technology (OMT)

Admixtures for Concrete    |     Asphalt Additives     |     Asphalt Mixtures (Qualified Producers)     |     Asphalt Release

Cement Materials and Bagged Mixtures    |     Composite Offset Blocks    |     Curing Compounds (Liquid Membrane)

Decorative Concrete Stain, Vertical    |     Decorative Reinforced Thermoplastic    |     Detectable Warning Surfaces

Emulsified Asphalts    |     Form Release Compounds    |     Geosynthetic Materials, Geotextiles

Latex Emulsion    |     Liquid and Powder Protective Coatings    |     Pavement Marking Materials    |     Pavement Repair Materials

Performance Graded Asphalt Binder    |     Precast Concrete (Qualified Producers)    |     Sealers, Qualified Liquid Materials

Soil Materials, Graded Aggregate Base and Aggregate Bulletin    |     Soil Stabilization Matting

Steel Producers, Fabricators and Suppliers    |     Traffic Barrier End Treatments


Office of Traffic and Safety (OOTS)

Electrical Accessories    |     Reflective Sheeting

Traffic Control Materials, Qualified    |     Traffic Control Materials, Qualified and Temporary


Office of Structures (OOS)

Noise Barrier Systems    |     Retaining Walls


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FlagB​uild America Buy America

For Federally funded projects advertised after November 10, 2022, certificates of compliance with the Build America, Buy America Act will be required from product manufacturers or producers for all iron, steel, and construction materials.

  • A Construction Material, Per BIL/IIJA section 70914, is defined as “An article, material, or supply——that is or consists primarily of non-ferrous metals; plastic and polymer-based products (including polyvinylchloride other than an item of primarily iron or steel; a manufactured product; cement and cementitious materials; aggregates such as stone, sand, or gravel; or aggregate binding agents or additives composite building materials, and polymers used in fiber optic cables); glass (including optic glass); lumber; or drywall.

  • Based on BIL/IIJA section 70914, cement and cementitious materials, and aggregate binding agents or additives are excluded from the definition of "construction materials".


Jay Gheewala, New Products and Research Team Leader
Engineering Geology Division
Phone: 443-572-5045     Toll Free: 866-926-8501     Fax: 410-787-0483


Admixtures for Concrete

Asphalt Additives

Asphalt Release Agents

Cement Materials and Bagged Mixtures, Group 1

Composite Offset Blocks

Curing Compounds (Liquid Membrane)

Decorative Concrete Stain, Vertical

Decorative Reinforced Thermoplastic

Detectable Warning Surfaces

Emulsified Asphalts

Form Release Compounds

Geosynthetic Materials, Geotextiles

Latex Emulsion

Pavement Marking Materials

Pavement Repair Materials

Performance Graded Asphalt Binder

Sealers: Qualified Liquid Materials

Soil Stabilizing Matting

Traffic Barrier End Treatments