Accreditations and Registration

Our experienced team is committed to delivering high-quality testing and engineering services for all types of construction materials. We pride ourselves on our commitment to client satisfaction and providing reliable services to meet their needs.

Registrations and Accreditations

  • Our firm is registered with the Texas Board of Professional Engineers, Firm No. F-1563.

  • Our Austin laboratory is accredited by AASHTO Accreditation Program in the areas of asphalt binder, emulsified asphalt, asphalt mixture, soil, Portland Cement Concrete, aggregate and quality system. Our Pharr and Arlington laboratories are also accredited by the AASHTO Accreditation Program.

  • Our laboratory is accredited by the Texas Department of Transportation (TxDOT) in the areas of quality management system, hot mix asphalt, soil, aggregate, concrete, asphalt and chemical.

  • Our laboratory is accredited by the U.S. Army Corps of Engineers (USACE) in the areas of aggregate, bituminous, concrete and soils.

  • Our firm is pre-certified by TxDOT in the following categories:

  • 11.1.1  Roadway Construction Management And Inspection
    11.2.1 Bridge Construction Management And Inspection
    12.1.1 Asphaltic Concrete Production
    12.1.2 Portland Cement Concrete
    12.1.3 Materials Engineering
    12.1.4 Asphaltic Concrete Placement
    12.1.5 Portland Cement Concrete Placement
    12.1.6 Embankment/Subgrade/Backfill/Base Production
    12.1.7 Embankment/Subgrade/Backfill/Base Placement
    12.2.1 Concrete Plant Inspection and Testing
    14.1.1 Soil Exploration
    14.2.1 Geotechnical Testing
    14.3.1 Transportation Foundation Studies

  • Our firm has been a member of the Texas Council of Engineering Laboratories since 1997, and an associate member of the Texas Hot Mix Asphalt Pavement Association since 1994.

DBE/HUB/MBE Certificates

REL possess certificates of Minority-Owned Business Enterprise (MBE), Historically Underutilized Business (HUB) and Disadvantaged Business Enterprise (DBE). Please contact our office if copies of the original certificates are needed.