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These lists provide sources of materials that have been qualified by the Maryland Department of Transportation State Highway Administration (MDOT SHA) for use on State projects. This page is a reference for source of supply approval and does not imply that materials can be used on MDOT SHA projects without normal quality assurance testing and procedures.

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

When a product is approved or corrections are made, an updated copy of the qualified list is posted online. See the date at the bottom of the list (PDF) for the last update..

Direct questions concerning each list to the appropriate manager. See the related qualified process for the contact information.

MDOT SHA Specification to Material Index (PDF, 500 KB)

Material Quality Assurance Processes, Details and Frequencies

Select a Material Category

Office of Materials Technology (OMT)

Admixtures for Concrete | Asphalt Additives | Asphalt Mixtures | Asphalt Release | Cement Materials and Bagged Mixtures | Composite Offset Blocks | Compost | Curing Compounds (Liquid Membrane) | Decorative Concrete Stain, Vertical | Detectable Warning Surfaces | Emulsified Asphalts | Fertilizers | 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 | Sealers, Qualified Liquid Materials | Seed and Sod | Soil Materials (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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OFFICE OF MATERIALS TECHNOLOGY (OMT) QPL COORDINATOR

Troy Davis, New Products and Research Team Leader
Phone: 443-572-5045     Toll Free: 866-926-8501     Fax: 410-787-0483
Email:  Tdavis5@mdot.maryland.gov

 

Admixtures for Concrete

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• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products
• Air Entraining Agents (PDF, 200 KB)
• Drycast Admixtures (PDF, 200 KB)
• Precast Admixture (PDF, 200 KB)
• Type A - Water Reducing (PDF, 200 KB)
• Type C - Accelerating Agent, Chloride (PDF, 400 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, 400 KB)

Asphalt Additives

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products
• Qualified Warm Mix Additives: Binder Additive Products (PDF, 200 KB)
• Qualified Warm Mix Additives: Mixture Additive Products (PDF, 200 KB)

Asphalt Release Agents 

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products (PDF, 200 KB)

Cement Materials and Bagged Mixtures, Group 1

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products
• Non-Shrink Cementitious Grout (PDF, 200 KB)
• Rapid Hardening Cement (horizontal repairs) (PDF, 200 KB)

Composite Offset Blocks

• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products
• Composite Offset Blocks (PDF, 300 KB)

Compost

• Producer Qualification Procedures (PDF, 50 KB)
• Qualified Producers
• Qualified Producers (PDF, 200 KB)

Curing Compounds (Liquid Membrane)

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products
• Clear or Translucent Curing Compound (PDF, 200 KB)
• Curing and Sealing Compound (PDF, 100 KB)
• White Pigmented Curing Compound (PDF, 200 KB)

Decorative Concrete Stain, Vertical 

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products
• Stain for Architectural Finish (PDF, 100 KB)
• Stain for Noise Barriers (PDF, 100 KB)

Detectable Warning Surfaces

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products (PDF, 200 KB)
  

Emulsified Asphalts

• Producer Qualification Procedures (PDF, 50 KB)
• Qualified Producers
• Emulsified Asphalts, Other (PDF, 200 KB)
• Emulsified Asphalts, Tack Coat (PDF, 800 KB)

Fertilizers

• Producer Qualification Procedures (PDF, 50 KB)
• Qualified Producers (PDF, 400 KB)

Form Release Compounds

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products (PDF, 200 KB)

Geosynthetic Materials, Geotextiles

• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products (PDF, 300 KB)

Latex Emulsion

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products (PDF, 200 KB)
  

Pavement Marking Materials

• Product Qualification Procedures (PDF, 400 KB)
• Qualified Products
• Epoxy Pavement Markings (PDF, 100 KB)
• Pavement Marking Tape (PDF, 200 KB)
• Polyurea Pavement Marking (PDF, 200 KB)
• SRPM Holders (PDF, 200 KB)
• Lens for SRPM with Holders (PDF, 100 KB)
• Lens for Recessed SRPM without Holders (PDF, 100 KB)
• Temporary Raised Pavement Markers (PDF, 100 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

• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products
• Asphaltic Joint Sealant and Crack Filler (PDF, 200 KB)
• Cold Patch Material (CPM) Products (PDF, 200 KB)

Performance Graded Asphalt Binder

• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products (PDF, 200 KB)

Sealers: Qualified Liquid Materials

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products
• Asphaltic Dampproofing and Waterproofing (PDF, 200 KB)

Seed and Sod

• Producer Qualification Procedures (PDF, 50 KB)
• Qualified Producers
• Seed Mixes (PDF, 200 KB)
• Turf Grass Sod (PDF, 100 KB)

Soil Stabilizing Matting

• Product Qualification Procedures (PDF, 50 KB)
• Qualified Products
• Type A SSM (PDF, 200 KB)
• Type B SSM (PDF, 200 KB)
• Type C SSM (PDF, 200 KB)
• Type D SSM (PDF, 200 KB)
• Type E SSM (PDF, 200 KB)

Traffic Barrier End Treatments

• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products for Contracts Advertised After 1/1/2020
• W-Beam One-Sided Flared End Treatment (Type B) (PDF, 30​0 KB)
• W-Beam One-Sided Parallel End Treatment (Type C) (PDF, 300 KB)
• Two-Sided End Treatment and Crash Cushion (Types D, E, F, J) (PDF, 300 KB)
• Qualified Products for Contracts Advertised Prior to 1/1/2020
• Type B End Treatment (PDF, 300 KB)
• Type C End Treatment (PDF, 300 KB)
• Type D End Treatment (PDF, 300 KB)
• Type E End Treatment (PDF, 300 KB)
• Type F End Treatment (PDF, 300 KB)
• Type J End Treatment (PDF, 300 KB)

***NOTE: After December 31, 2019 the Maryland Department of Transportation State Highway Administration (MDOT SHA) will use MASH 2016 compliant devices for new permanent installations and full replacements. NCHRP 350 and MASH 2009 devices may be used when approved by the Contract’s Engineer of Record when:

1. A MASH 2016 compliant device does not exist to address the situation; or
2. A MASH 2016 compliant device exists but does not meet the State’s needs given project or regional conditions; or
3. The State is awaiting completion of MASH 2016 testing for a specific device; or
4. The device is a temporary work zone device that has been in use prior to December 31, 2019 and is still within its normal service life

 

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OFFICE OF MATERIALS TECHNOLOGY, STRUCTURAL MATERIALS AND PAVEMENT MARKINGS DIVISION

David Malburg, Division Chief
Phone: 443-572-5298     Toll Free: 866-926-8501     Fax: 410-787-0461
Email:  DMalburg@mdot.maryland.gov

Steel Producers, Fabricators and Suppliers

• Steel Producer Qualification Procedures (PDF, 100 KB)
• Qualified Producers, Fabricators and Suppliers
• Aluminum Signs (PDF, 300 KB)
• Bearings, Elastomeric Structural (PDF, 700 KB)
• Bearings, Structural (PDF, 800 KB)
• Bridge Mounted Sign Supports (PDF, 400 KB)
• Deformed Reinforcement Bars: Manufacturing Mills (PDF, 400 KB)
• Deformed Reinforcement Bars: Fabricators (PDF, 300 KB)
• Expansion Joints in Structures, Complex / Finger (PDF, 700 KB)
• Expansion Joints in Structures, Simple (PDF, 700 KB)
• Fiberglass Scuppers (PDF, 500 KB)
• Galvanized Steel Beam Sign Posts (PDF, 700 KB)
• Gray Iron Casting (Scupper, Drain Grate, Inlet) (PDF, 200 KB)
• Lighting Structures (PDF, 700 KB)
• Metal Railing, Bridge Railing (PDF, 700 KB)
  
• Metal Structures, Bridge Steel (PDF, 900 KB)
• Metal Traffic Barriers: Certified List of Suppliers (PDF, 300 KB)
• Metal Traffic Barriers: Manufacturers (PDF, 400 KB)
• Noise Barrier, Steel Post (PDF, 700 KB)
• Overhead Sign Structures (PDF, 700 KB)
• Signal Structures (PDF, 700 KB)
• Steel Frame and Cover (PDF, 300 KB)
• Steel Wire Reinforcement Fabric, Welded (PDF, 400 KB)

Qualified Liquid Coating and Fusion-Bonded Powder Manufacturers, Applicators and Galvanizers

• Coatings Manufacturer Qualification Procedures (PDF, 100 KB)
• Coatings Products Qualification Procedures (PDF, 100 KB)
• Qualified Manufacturers, Applicators and Galvanizers
• Application Shops for Epoxy and/or Polyester Powder Coatings (PDF, 300 KB)
• Application Shops for Liquid Coating Systems (PDF, 700 KB)
• Galvanizing Shops (PDF, 400 KB)
• Epoxy Powder Coating Manufacturers (PDF, 300 KB)
• Epoxy Powder Coating Products (PDF, 400 KB)
• Manufacturers of Structural Steel Liquid Coatings (PDF, 700 KB)
• Manufacturers of Polyester Powder Coatings (PDF, 1.0 MB)

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OFFICE OF MATERIALS TECHNOLOGY, QUALIFIED CONCRETE PRODUCERS

Vicki Stewart, Division Chief
Phone: 443-572-5134     Toll Free: 866-926-8501
Email:  VStewart@mdot.maryland.gov

Precast Concrete

• Qualified Producers
• Precast ​Plant Approval Requirements (PDF, 150 KB)
• Ready Mix Approval Requirements (PDF, 150 KB)
• Precast Concrete, Drainage Structures (PDF, 200 KB)
• Precast Concrete, Miscellaneous (PDF, 300 KB)
• Precast Concrete, Pipe (PDF, 200 KB)
• Precast Concrete, Prestressed and Structural (PDF, 300 KB)
• Precast Concrete, Walls (PDF, 200 KB)

OFFICE OF MATERIALS TECHNOLOGY, QUALIFIED ASPHALT PRODUCERS

Rebeccah Smith, Assistant Division Chief
Phone: 443-572-5112     Toll Free: 866-926-8501     Fax: 410-787-0482
Email:  RSmith8@mdot.maryland.gov

Asphalt Mixtures

• Qualified Asphalt Mixture Producers (PDF, 200 KB)
• Producer Qualification Documents
• Warm Mix Plant Approval (PDF, 1.0 MB)
• Asphalt Plant Inspection Checklist (PDF, 100 KB)
• Quality Control Plan for Plants (PDF, 100 KB)

OFFICE OF MATERIALS TECHNOLOGY, AGGREGATE BULLETIN AND LANDSCAPING SOIL PRODUCERS

Eric M. Frempong, Deputy Director, Material Quality
Phone: 443-572-5269     Toll Free: 866-926-8501     Fax: 410-787-0486
Email:  efrempong@mdot.maryland.gov

Aggregate Bulletin (Updated Quarterly)

• Aggregate Bulletin (PDF, 1.0 MB)

Soil Materials

• Eligible Landscape Soil Producers (PDF, 300 KB)
• Producer Eligibility Procedures (PDF, 300 KB)

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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:  EWaltman@mdot.maryland.gov

Electrical Accessories

• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products
• Traffic Signal Heads (In Progress)

Reflective Sheeting

• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products (PDF, 200 KB)

Traffic Control Materials, Qualified

• Product Qualification Procedures (PDF, 100 KB)
• Qualified Products
• Barrier Delineators (PDF, 200 KB)
• Lane Separator System (Longitudinal Separators) (PDF, 100 KB)
• Luminares and Lamps, Roadway LED (PDF, 200 KB)

Traffic Control Materials, Qualified and Temporary

• Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Arrow Panels (PDF, 100 KB)
• Barricades (PDF, 400 KB)
• Cones (PDF, 200 KB)
• Drums (PDF, 400 KB)
  
• Portable Sign Stands (PDF, 100 KB)
• Portable Traffic Signals (PDF, 181 KB)
• Portable Variable Message Signs (PDF, 200 KB)
• Protection Vehicle Attenuator (PDF, 200 KB)
• Speed Display Trailer (PDF, 400 KB)
• Temporary Concrete Traffic Barriers (PDF, 200 KB)
• Temporary Crash Cushions, Sand Filled Plastic Barrel (PDF, 400 KB)
• Temporary Steel Traffic Barriers (PDF, 400 KB)
• Temporary Traffic Signs (PDF, 191 KB)
• Truck Mounted Variable Message Signs (PDF, 400 KB)
• Tubular Markers (PDF, 100 KB)
• Water Filled Barriers (PDF, 500 KB)

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OFFICE OF STRUCTURES (OOS)

Kelly Nash, Division Chief
Phone: 410-545-8074     Toll Free: 888-375-1084     Fax: 410-209-5002
Email:  KNash@mdot.maryland.gov

Noise Barrier Systems

• Approved Proprietary Noise Barrier Systems (PDF, 100 KB)

Contact our Office of Structures (OOS) about approval of noise barrier systems.

Prasoon Shrestha, Structures Engineering Division
Phone: 410-545-8887     Toll Free: 888-375-1084     Fax: 410-209-5002
Email:  PShrestha@mdot.maryland.gov

Retaining Walls

• Approved Proprietary Retaining Wall List (PDF, 100 KB)

Contact our Office of Structures (OOS) about approval of retaining walls.

Michael Strong, Team Leader, Precast/Prestressed Concrete, Office of Materials Technology (OMT)
Phone: 410-375-1384     Toll Free: 866-926-8501     Fax: 410-787-8324
Email:  MStrong@mdot.maryland.gov

Contact our Office of Materials Technology (OMT) for certification inspections of precast noise barrier system plants.

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