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- American Association of State Highways and Transportation Officials (AASHTO):
- Hot Mix Asphalt
- Aggregate
- Soil
- Portland Cement Concrete
- American Industrial Hygiene Association (AIHA)
- Federal Aviation Administration (FAA)
- Iowa Department of Transportation (IA/DOT)
- Minnesota Department of Agriculture
- Minnesota Department of Transportation (Mn/DOT)
- National Voluntary Laboratory Accreditation Program (NVLAP)
- North Dakota Department of Transportation (ND/DOT)
- South Dakota Department of Transportation (SD/DOT)
- U.S. Army Corps of Engineers
- Wisconsin Department of Transportation (WI/DOT):
- Highway Technician Certification Program
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