The Qualified Product and Qualified Producer/Manufacturer lists posted on this page provide sources of materials and material producers that have been qualified by the Maryland State Highway Administration (SHA) for use on Maryland 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, a new revised 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.
  
         
  
         
 
            
          
         
Please select a material category below: 
           
         
Office of Materials Technology (OMT) 
 
         Admixtures for Concrete    |     
         
Asphalt Additives     |     
         
Asphalt Mixtures (Qualified Producers)     |     
         
Asphalt ReleaseCement Materials and Bagged Mixtures    |     
         
Composite Offset Blocks    |     
         
Curing Compounds (Liquid Membrane)Decorative Concrete Stain, Vertical    |     
         
Decorative Reinforced Thermoplastic    |     
         
Detectable Warning SurfacesEmulsified Asphalts    |     
         
Form Release Compounds    |     
         
Geosynthetic Materials, GeotextilesLatex Emulsion    |     
         
Liquid and Powder Protective Coatings    |     
         
Pavement Marking Materials    |     
         
Pavement Repair MaterialsPerformance Graded Asphalt Binder    |     
         
Precast Concrete (Qualified Producers)    |     
         
Sealers, Qualified Liquid Materials  
         
Soil Materials, Graded Aggregate Base and Aggregate Bulletin    |     
         
Soil Stabilization MattingSteel Producers, Fabricators and Suppliers    |     
         
Traffic Barrier End Treatments 
          
         Office of Traffic and Safety (OOTS) 
 
         Electrical Accessories    |     
         
Reflective SheetingTraffic Control Materials, Qualified    |     
         
Traffic Control Materials, Qualified and Temporary
          
         Office of Structures (OOS) 
 
         Noise Barrier Systems    |     
         
Retaining Walls
          
   
         
 
            
Build 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".
 
         
 
         
OFFICE OF MATERIALS TECHNOLOGY (OMT) QPL COORDINATOR
 
         Jay Gheewala, New Products and Research Team Leader 
            
Engineering Geology Division 
            
Phone: 443-572-5045     Toll Free: 866-926-8501     Fax: 410-787-0483 
            
Email:  
            [email protected] 
          
          
         Admixtures for Concrete
         
            -  
               Product Qualification Procedures: Admixtures for Concrete (PDF, 200 KB) 
 
            - Qualified Products
 
            
               -  
                  Air Entraining Agents (PDF, 200 KB) 
 
               -  
                  Drycast Admixtures (PDF, 200 KB) 
 
               -  
                  Precast Admixture (PDF, 200 KB) 
 
               -  
                  Type A - Water Reducing (PDF, 100 KB) 
 
               -  
                  Type C - Accelerating Agent, Chloride (PDF, 200 KB) 
 
               -  
                  Type C - Accelerating Agent, Non-Chloride (PDF, 200 KB) 
 
               -  
                  Type D - Water Reducing and Retarding Agent (PDF, 200 KB) 
 
               -  
                  Type F - Water Reducing High Range Agent (PDF, 200 KB) 
 
               -  
                  Type G - Water Reducing High Range Retarder (PDF, 200 KB) 
 
            
         
 
         
 
         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
         
            -  
               Product Qualification Procedures: Pavement Marking Materials (PDF, 500 KB) 
 
            - Qualified Products
 
            
               -  
                  Epoxy Pavement Markings (PDF, 200 KB) 
 
               -  
                  Pavement Marking Tape (Permanent) (PDF, 200 KB) 
 
               -  
                  Pavement Marking Tape (Temporary) (PDF, 200 KB) 
 
               -  
                  Polyurea Pavement Marking (PDF, 200 KB) 
 
               -  
                  SRPM Holders (PDF, 200 KB) 
 
               -  
                  Lens for SRPM with Holders (PDF, 200 KB) 
 
               -  
                  Lens for Recessed SRPM without Holders (PDF, 200 KB) 
 
               -  
                  Temporary Raised Pavement Markers (PDF, 200 KB) 
 
               -  
                  High Binder Thermoplastic (40-mil) (PDF, 200 KB) 
 
               -  
                  Thermoplastic (90-mil) (PDF, 200 KB) 
 
               -  
                  Thermoplastic Pavement Marking, Preformed (PDF, 200 KB) 
 
               -  
                  Waterborne Paint (PDF, 200 KB) 
 
            
         
         
         Pavement Repair Materials
         
          
         Performance Graded Asphalt Binder
         
          
         Sealers: Qualified Liquid Materials
         
          
         Soil Stabilizing Matting
         
         
         Traffic Barrier End Treatments
         
            -  
               Product Qualification Procedures: Traffic Barrier End Treatments (PDF, 200 KB) 
 
            - Qualified Products for Contracts 
               Advertised After 1/1/2020
 
             
            
 
            
               NOTE: Type J can be used where Type E is needed.  However, Type E CANNOT be used for a situation where a Type J is needed.
             
            
 
            Contact:
             
               SHA Traffic Barrier Team
Phone: 410-582-5546
Email: 
               [email protected]
            Note
            Since December 31, 2019, SHA has been using MASH 2016-compliant devices for new permanent installations and maintenance replacements on National Highway System (NHS) routes. Exceptions may apply when one of the following occurs:
            
               - A MASH 2016-compliant device does not exist to address the situation; or 
 
               - A MASH 2016-compliant device exists but does not meet the state DOT’s needs given project or regional conditions; or 
 
               - The device is a temporary work zone device that was in use prior to December 31, 2019 and is still within its normal service life.
 
            
 
            
 
             
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            OMT STRUCTURAL MATERIALS AND PAVEMENT MARKINGS DIVISION
             
               David Malburg, P. E., Division Chief 
                  
Phone: 443-572-5298     Toll Free: 866-926-8501     Fax: 410-787-0461 
                  
Email:  
                  [email protected] 
             
            Steel Producers, Fabricators and Suppliers
            
               -  
                  Producer Qualification Procedures: Steel (PDF, 300 KB) 
 
               - Qualified Producers, Fabricators and Suppliers
 
               
                  -  
                     Aluminum Signs (PDF, 300 KB) 
 
                  -  
                     Bearings, Elastomeric Structural (PDF, 300 KB) 
 
                  -  
                     Bearings, Structural (PDF, 300 KB) 
 
                  -  
                     Bridge Mounted Sign Supports (PDF, 200 KB) 
 
                  -  
                     Deformed Reinforcement Bars: Fabricators (PDF, 300 KB) 
 
                  -  
                     Deformed Reinforcement Bars: Manufacturing Mills (PDF, 300 KB) 
 
                  -  
                     Expansion Joints in Structures, Complex / Finger (PDF, 200 KB) 
 
                  -  
                     Expansion Joints in Structures, Simple (PDF, 200 KB) 
 
                  -  
                     Fiberglass Scuppers (PDF, 200 KB) 
 
                  -  
                     Galvanized Steel Beam Sign Posts (PDF, 200 KB) 
 
                  -  
                     Gray Iron Casting (Scupper, Drain Grate, Inlet) (PDF, 200 KB) 
 
                  -  
                     Lighting Structures (PDF, 200 KB) 
 
                  -  
                     Metal Railing, Bridge Railing (PDF, 300 KB)  
                     
 
                  -  
                     Metal Structures, Bridge Steel (PDF, 300 KB) 
 
                  -  
                     Metal Traffic Barrier: Certified Installers/Suppliers (PDF, 300 KB) 
 
                  -  
                     Metal Traffic Barrier: Manufacturer (PDF, 200 KB) 
 
                  -  
                     Noise Barrier, Steel Post (PDF, 200 KB) 
 
                  -  
                     Overhead Sign Structures (PDF, 200 KB) 
 
                  -  
                     Signal Structures (PDF, 200 KB) 
 
                  -  
                     Steel Frame and Cover (PDF, 300 KB) 
 
                  -  
                     Steel Wire Reinforcement Fabric, Welded (PDF, 200 KB) 
 
               
            
            
 
            Qualified Liquid Coating and Fusion-Bonded Powder Applicators, Manufacturers and Galvanizers
             
            
 
             
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            OMT QUALIFIED CONCRETE PRODUCERS
             
               Vicki Stewart, Division Chief 
                  
Phone: 443-572-5134     Toll Free: 866-926-8501 
                  
Email:  
                  [email protected] 
             
            Precast Concrete
            
               - Approval Requirements
 
               
               - Qualified Producers
 
               
                  -  
                     Precast Concrete, Drainage Structures (PDF, 200 KB) 
 
                  -  
                     Precast Concrete, Miscellaneous (PDF, 200 KB) 
 
                  -  
                     Precast Concrete, Pipe (PDF, 200 KB) 
 
                  -  
                     Precast Concrete, Prestressed and Structural (PDF, 200 KB) 
 
                  -  
                     Precast Concrete, Walls (PDF, 200 KB) 
 
               
            
 
            
 
            OMT QUALIFIED ASPHALT PRODUCERS
             
               Rebeccah Smith, Assistant Division Chief 
                  
Phone: 443-572-5112     Toll Free: 866-926-8501     Fax: 410-787-0482 
                  
Email:  
                  [email protected] 
             
            Asphalt Mixtures
            
            
               - Producer Qualification Procedural Documents 
 
               
            
 
            
 
            OMT LANDSCAPING SOIL PRODUCERS; GRADED AGGREGATE BASE PRODUCERS; AGGREGATE BULLETIN
             
               Amanuel Welderufael, Assistant Division Chief 
                  
Phone: 443-572-5276     Toll Free: 866-926-8501     Fax: 410-787-0464
Email:  
                  [email protected] 
             
            Soil Materials
             
            
 
            Graded Aggregate Base
             
            
 
            Aggregate Bulletin (Updated Quarterly)
             
            
 
             
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            OFFICE OF TRAFFIC AND SAFETY (OOTS) QUALIFIED PRODUCTS
             
               Eric Waltman, Office of Traffic and Safety 
                  
Phone: 410-787-5878     Toll Free: 888-963-0307     Fax: 410-582-9469 
                  
Email:  
                  [email protected] 
             
            Electrical Accessories
            
            
 
             
            Reflective Sheeting
            
            
 
             
            Traffic Control Materials, Qualified
            
            
 
             
            Traffic Control Materials, Qualified and Temporary
            
               -  
                  Product Qualification Procedures: Traffic Control Materials, Temporary (PDF, 300 KB) 
 
               - Qualified Products
 
               
                  -  
                     Arrow Panel (PDF, 200 KB)
 
                  -  
                     Automated Flagger Assistance Device (PDF, 200 KB)
 
                  -  
                     Barricades (PDF, 200 KB) 
 
                  -  
                     Cones (PDF, 200 KB) 
 
                  -  
                     Drums (PDF, 200 KB) 
                     
 
                  -  
                     Portable Rumble Strip (PDF, 200 KB) 
 
                  -  
                     Portable Traffic Signals (PDF, 200 KB) 
 
                  -  
                     Portable Variable Message Sign (PDF, 200 KB) 
 
                  -  
                     Protection Vehicle Attenuator (PDF, 200 KB) 
 
                  -  
                     Speed Display Trailers (PDF, 200 KB) 
 
                  -  
                     Speed Feedback Sign (PDF, 200 KB) 
 
                  -  
                     Temporary Concrete Traffic Barrier (PDF, 200 KB) 
 
                  -  
                     Temporary Crash Cushion, Sand Filled Plastic Barrel (PDF, 200 KB) 
 
                  -  
                     Temporary Steel Traffic Barrier (PDF, 200 KB) 
 
                  -  
                     Temporary Traffic Sign (PDF, 200 KB) 
 
                  -  
                     Truck Mounted Variable Message Signs (PDF, 200 KB) 
 
                  -  
                     Tubular Marker (PDF, 200 KB) 
 
                  -  
                     Water Filled Barrier (PDF, 200 KB) 
 
                  -  
                     Workers Present Trailer (PDF, 200 KB) 
 
               
            
 
            
 
             
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            OFFICE OF STRUCTURES (OOS) NOISE BARRIER SYSTEMS AND RETAINING WALLS
             
            Noise Barrier Systems
             
               Timothy Briner, Transportation Design Engineer 
                  
Phone: 410-545-8409     Toll Free: 888-375-1084     Fax: 410-209-5002 
                  
Email:  
                  [email protected] 
            
            Contact our Office of Structures (OOS) about approval of noise barrier systems.
             
            Retaining Walls
             
               Randy Knieriem, Structures Engineering Division 
                  
Phone: 410-545-8360     Toll Free: 888-375-1084     Fax: 410-209-5002 
                  
Email:  
                  [email protected] 
            
            Contact Office of Structures (OOS) regarding approval of retaining walls.
             
               David Rosen, Team Leader, Precast/Prestressed Concrete, Office of Materials Technology (OMT) 
                  
Phone: 410-375-4424     Toll Free: 866-926-8501     Fax: 410-787-8324 
                  
Email:  
                  [email protected] 
            Contact Office of Materials Technology (OMT) for certification inspections of Precast Noise Barrier System plants.
             
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