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. Refer to the date at the bottom of the list (PDF) for the latest update.

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

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

Material Quality Assurance Processes, Details and Frequencies

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    |     Compost    |     Curing Compounds (Liquid Membrane)

Decorative Concrete Stain, Vertical    |     Decorative Reinforced Thermoplastic    |     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 (Qualified Producers)    |     Sealers, Qualified Liquid Materials

Seed and Sod    |     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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OFFICE OF MATERIALS TECHNOLOGY (OMT) QPL COORDINATOR

Troy Davis, New Products and Research Team Leader
Phone: 443-572-5045     Fax: 410-787-0483
Email:  TDavis5@mdot.maryland.gov

 

Admixtures for Concrete

• Admixtures for Concrete Product Qualification Procedures (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, 200 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 Additives Product Qualification Procedures (PDF, 200 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

• Asphalt Release Agents Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Asphalt Release Agents (PDF, 200 KB)

Cement Materials and Bagged Mixtures, Group 1

• Cement Materials and Bagged Mixtures, Group 1 Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Non-Shrink Cementitious Grout (PDF, 200 KB)
• Rapid Hardening Cement (horizontal repairs) (PDF, 200 KB)

Composite Offset Blocks

• Composite Offset Blocks Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Composite Offset Blocks (PDF, 200 KB)

Compost

• Compost Producer Qualification Procedures (PDF, 200 KB)
• Qualified Producers
• Compost (PDF, 400 KB)

Curing Compounds (Liquid Membrane)

• Curing Compounds (Liquid Membrane) Product Qualification Procedures (PDF, 200 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

• Decorative Concrete Stain, Vertical Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Stain for Architectural Finish (PDF, 100 KB)
• Stain for Noise Barriers (PDF, 100 KB)

Decorative Reinforced Thermoplastic

• Decorative Reinforced Thermoplastic Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Decorative Reinforced Thermoplastic (PDF, 200 KB)

Detectable Warning Surfaces

• Detectable Warning Surfaces Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Detectable Warning Surfaces (PDF, 200 KB)
  

Emulsified Asphalts

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

Fertilizers

• Fertilizer Producer Qualification Procedures (PDF, 200 KB)
• Qualified Producers
• Fertilizers (PDF, 400 KB)

Form Release Compounds

• Form Release Compounds Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Form Release Compounds (PDF, 200 KB)

Geosynthetic Materials, Geotextiles

• Geosynthetic Materials, Geotextiles Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Geotextiles (PDF, 300 KB)

Latex Emulsion

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

Pavement Marking Materials

• Pavement Marking Materials Product Qualification Procedures (PDF, 500 KB)
• Qualified Products
• Epoxy Pavement Markings (PDF, 200 KB)
• Pavement Marking Tape (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

• Pavement Repair Materials Product Qualification Procedures (PDF, 300 KB)
• Qualified Products
• Asphaltic Joint Sealant and Crack Filler (PDF, 200 KB)
• Cold Patch Material (CPM) Products (PDF, 200 KB)

Performance Graded Asphalt Binder

• Performance Graded Asphalt Binder Producer Qualification Procedures (PDF, 200 KB)
• Qualified Producers
• Performance Graded Asphalt Binder (PDF, 200 KB)

Sealers: Qualified Liquid Materials

• Sealers: Qualified Liquid Materials Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Asphaltic Dampproofing and Waterproofing (PDF, 200 KB)

Seed and Sod

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

Soil Stabilizing Matting

• Soil Stabilizing Matting Product Qualification Procedures (PDF, 200 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

• Traffic Barrier End Treatments Product Qualification Procedures (PDF, 200 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)



Traffic Barrier End Treatment Field Guide
The field guide provides detailed information on each of the Approved End Treatment products on MDOT SHA’s Qualified Product List for this asset.




Contacts:

Scott Simons, Office of Maintenance
Phone: 410-582-5565
Email:  SSimons@mdot.maryland.gov

Chris Diaczok, Asset Management Office
Phone: 410-582-5548
Email:  CDiaczok@mdot.maryland.gov

• Manual for Assessing Safety Hardware (MASH) 2016 Approved End Treatments (PDF, 100 KB)
• National Cooperative Highway Research Program NCHRP 350 Approved End Treatments (PDF, 100 KB)



Note

Since December 31, 2019, MDOT 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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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, 200 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, 700 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 Barriers: Certified Installers (PDF, 300 KB)
• Metal Traffic Barriers: Manufacturers (PDF, 700 KB)
• Noise Barrier, Steel Post (PDF, 300 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

• Coatings Manufacturer Qualification Procedures (PDF, 200 KB)
• Coatings Product Qualification Procedures (PDF, 100 KB)
• Qualified Applicators, Manufacturers and Galvanizers
• Application Shops for Epoxy / Polyester Powder Coatings (PDF, 300 KB)
• Application Shops for Liquid Coating Systems (PDF, 200 KB)
• Epoxy Powder Coating Manufacturers (PDF, 300 KB)
• Epoxy Powder Coating Products (PDF, 200 KB)
• Polyester Powder Coating Manufacturers (PDF, 1.0 MB)
• Structural Steel Liquid Coating Manufacturers (PDF, 700 KB)
• Galvanizing Shops for Metals (PDF, 300 KB)



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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

• Approval Requirements
• Precast ​Plant Approval Requirements (PDF, 200 KB)
• Ready Mix Approval Requirements (PDF, 200 KB)
• Qualified Producers
• Precast Concrete, Drainage Structures (PDF, 300 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, 200 KB)
• Asphalt Plant Inspection Checklist (PDF, 100 KB)
• Quality Control Plan for Plants (PDF, 100 KB)



OFFICE OF MATERIALS TECHNOLOGY LANDSCAPING SOIL AND GRADED AGGREGATE BASE PRODUCERS AND AGGREGATE BULLETIN

Dr. Intikhab Haider, Division Chief
Phone: 443-572-5055     Toll Free: 866-926-8501     Fax: 410-787-0464
Email:  IHaider2@mdot.maryland.gov

Soil Materials

• Qualified Landscaping Soil Producers (PDF, 300 KB)
• Soil Producer Eligibility Procedures (PDF, 300 KB)



Graded Aggregate Base

• Certified Graded Aggregate Base Producers (PDF, 200 KB)
• Graded Aggregate Base Producer Eligibility Procedures (PDF, 400 KB)



Aggregate Bulletin (Updated Quarterly)

• Aggregate Bulletin (PDF, 1.0 MB)



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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

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



Reflective Sheeting

• Reflective Sheeting Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Reflective Sheeting (PDF, 300 KB)



Traffic Control Materials, Qualified

• Traffic Control Materials, Qualified Product Qualification Procedures (PDF, 200 KB)
• Qualified Products
• Barrier Delineators (PDF, 200 KB)
• Lane Separator System (Longitudinal Separators) (PDF, 300 KB)
• Luminares and Lamps, Roadway LED (PDF, 200 KB)



Traffic Control Materials, Qualified and Temporary

• Traffic Control Materials, Qualified and Temporary Product Qualification Procedures (PDF, 300 KB)
• Qualified Products
• Arrow Panels (PDF, 200 KB)
• Automated Flagger Assistance Device (PDF, 200 KB)
• Barricades (PDF, 400 KB)
• Cones (PDF, 300 KB)
• Drums (PDF, 200 KB)
  
• Portable Rumble Strips (PDF, 200 KB)
• Portable Traffic Signals (PDF, 200 KB)
• Portable Variable Message Signs (PDF, 200 KB)
• Protection Vehicle Attenuator (PDF, 200 KB)
• Speed Display Trailer (PDF, 200 KB)
• Temporary Concrete Traffic Barriers (PDF, 200 KB)
• Temporary Crash Cushions, Sand Filled Plastic Barrel (PDF, 100 KB)
• Temporary Steel Traffic Barriers (PDF, 100 KB)
• Temporary Traffic Signs (PDF, 200 KB)
• Truck Mounted Variable Message Signs (PDF, 200 KB)
• Tubular Markers (PDF, 200 KB)
• Water Filled Barriers (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:  TBriner@mdot.maryland.gov

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

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

Retaining Walls

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

• 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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