Corpus Christi - (361) 883-4555        San Antonio - (210) 495-8000       Round Rock - (512) 284-8022
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RETL holds several certifications including:

Texas Board of Professional Engineers License

American Association of State Highway Transportation Officials (AASHTO) accreditation
Corpus Christi and San Antonio

United States Army Corp of Engineers
Corpus Christi, San Antonio

State of Texas Historically Underutilized Business (HUB) Certification

Regional Transportation Authority Disadvantaged Business Enterprise (DBE)

South Central Regional Transportation Authority (SCRTA)

Small, Minority, Woman and Asian Business Enterprise.

Texas Board of Professional Engineers

The mission of the Texas Board of Professional Engineers (Board) is to protect the health, safety, and welfare of the people in Texas by ensuring that the practice of engineering in the state is carried out only by those persons who are proven to be qualified and by regulating the practice of Professional Engineering in Texas.

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United States Army Corps of Engineers

Rock Engineering and Testing Laboratory, Inc. is certified to pursue projects issued by the federal government through the United States Army Corps of Engineers Small Business and Contractors program.



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American Association of State Highway Transportation Officials (AASHTO)

The AASHTO is a standards setting body which publishes specifications, test protocols and guidelines which are used in highway design and construction throughout the United States.
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State of Texas Historically Underutilized Business (HUB)

The statewide HUB Program facilitates the use of HUBs in state procurement and provides them with information on the state’s procurement process. An Historically Underutilized Business is defined as a for-profit entity that has not exceeded the size standards prescribed by state law, and has its principal place of business in Texas.
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Regional Transportation Authority Disadvantaged Business Enterprise (RTA-DBE)

Disadvantaged Business Enterprise (DBE) program is managed by the U. S. Department of Transportation (DOT) to recruit socially and / or economically disadvantaged business as contractors for projects sponsored by the DOT. 


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South Central Texas Regional Certification Agency (SCTRCA)

The mission of the South Central Texas Regional Certification Agency is to increase participation of African American, Asian American, Disabled Individual, Emerging Small, Hispanic American, Minority, Native American, Small, Veteran and Woman-owned business enterprises.

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Corpus Christi - (361) 883-4555

San Antonio - (210) 495-8000

Round Rock - (512) 284-8022
"We are WBE, MBE, SBE, ABE, DBE and HUB certified."
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