​ ​ ​

The Qualified Product and Producer 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.

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​ SHA Material to Specification Index (PDF, 200 KB)

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Material Quality Assurance Processes, Details and Frequencies

​ ​ ​

Please select a material category below:

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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

 

​​ ​

B​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".

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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:  JGheewala@mdot.maryland.gov

 

Admixtures for Concrete

• Product Qualification Procedures: Admixtures for Concrete (PDF, 200 KB)
• Qualified Products
• Air Entraining Agents (PDF, 2​00 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, 2​00 KB)
• Type F - Water Reducing High Range Agent (PDF, 200 KB)
• Type G - Water Reducing High Range Retarder (PDF, 200 KB)

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Asphalt Additives

• Product Qualification Procedures: Asphalt Additives (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

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

Cement Materials and Bagged Mixtures, Group 1

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

Composite Offset Blocks

• Product Qualification Procedures: Composite Offset Blocks (PDF, 200 KB)
• Qualified Products
• Composite Offset Blocks (PDF, 3​00 KB)

Curing Compounds (Liquid Membrane)

• Product Qualification Procedures: Curing Compounds (Liquid Membrane) (PDF, 200 KB)
• Qualified Products
• Clear or Translucent Curing Compound (PDF, 200 KB)
• Curing and Sealing Compound (PDF, 200 KB)
• White Pigmented Curing Compound (PDF, 200 KB)

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Decorative Concrete Stain, Vertical

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

Decorative Reinforced Thermoplastic

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

Detectable Warning Surfaces

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

Emulsified Asphalts

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

Form Release Compounds

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

Geosynthetic Materials, Geotextiles

• Producer Qualification Procedures: Geosynthetic Materials, Geotextiles (P​DF, 200 KB)
• Qualified Producers
• Geotextiles (PDF, 300 KB)

Latex Emulsion

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

Pavement Marking Materials

• Product Qualification Procedures: Pavement Marking Materials (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

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

Performance Graded Asphalt Binder

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

Sealers: Qualified Liquid Materials

• Product Qualification Procedures: Sealers (PDF, 200 KB)
• Qualified Products
• Asphaltic Damp ​proofing and Waterproofing (PDF, 200 KB)

Soil Stabilizing Matting

• Product Qualification Procedures: Soil Stabilization Matting (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

• Product Qualification Procedures: Traffic Barrier End Treatments (PDF, 200 KB)
• Qualified Products for Contracts Advertised After 1/1/2020
• ​ W-Beam One-Sided Parallel End Treatment (Type C) (PDF, 300 KB)
• Two-Sided End Treatment and Crash Cushion (Types D, E, J) (PDF, 300 KB)

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.


• ​Proprietary End Treatment Resources and Online Training
• Traffic Barrier Hub - W-Beam and End Treatments Resources and Guides



Contact:

SHA Traffic Barrier Team
Phone: 410-582-5546
Email: shatrafficbarriers@mdot.maryland.gov

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, 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

• Producer Qualification Procedures: Steel (PDF, 300 KB)
• ​Qualified Producers, Fabricators and Suppliers
• Aluminum Signs (PDF, 300 KB)
• Bearings, Elastomeric Structural (PDF, 3​00 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

• ​ Manufacturer Qualification Procedures: Coatings (PDF, 200 KB)
• Product Qualification Procedures: Coatings (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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OMT 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
• Approval Requirements: Precast Plant (PDF, 200 KB)
• Approval Requirements: Ready Mix Plant (PDF, 300 KB)
• Approval Requirements: Volumetric Mobile Plant (PDF, 3​00 KB)
• 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:  RSmith8@mdot.maryland.gov

Asphalt Mixtures

• ​Qualified Producers
• Asphalt Mixtures (PDF, 200 KB)
• ​Producer Qualification Procedural Documents
• ​Warm Mix Plant Approval (PDF, 200 KB)
• Asphalt Plant Inspection Checklist (PDF, 100 KB)
• Plant Quality Control Plan (PDF, 100 KB)



OMT LANDSCAPING SOIL PRODUCERS; GRADED AGGREGATE BASE PRODUCERS; 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)
• Eligibility Procedures: Landscaping Soil Producers (PDF, 4​00 KB)



Graded Aggregate Base

• Certified Graded Aggregate Base Producers (PDF, 2​​00 KB)
• ​​ Producer Eligibility Procedures: Graded Aggregate Base (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

• Product Qualification Procedures: Traffic Signal Heads (PDF, 200 KB)
• Qualified Products
• Digital Message Signs (No Products in List) (PDF, 2​00 KB)
• Traffic Signal Heads (PDF, 2​00 KB)
• Pedestrian Signal Heads (PDF, 2​00 KB)



Reflective Sheeting

• ​​ Product Qualification Procedures: Reflective Sheeting (PDF, 200 KB)
• Qualified Products
• Reflective Sheeting (PDF, 2​00 KB)



Traffic Control Materials, Qualified

• Product Qualification Procedures: Traffic Control Materials (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, 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, 2​00 KB)
• Cones (PDF, 2​00 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)
• Temporary Concrete Traffic Barrier (PDF, 200 KB)
• Temporary Crash Cushion, Sand Filled Plastic Barrel (PDF, 200 KB)
• Temporary Steel Traffic Barrier (PDF, 2​00 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)



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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

Randy Knieriem, Structures Engineering Division
Phone: 410-545-8360     Toll Free: 888-375-1084     Fax: 410-209-5002
Email:  RKnieriem@mdot.maryland.gov

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

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:  DRosen@mdot.maryland.gov

Contact Office of Materials Technology (OMT) for certification inspections of Precast Noise Barrier System plants.

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