Certifications & Professional Affiliations:

• American Asphalt Paving Technologists
• American Association of State Highway & Transportation Officials
• American Concrete Institute
• American Construction Inspectors Association
• American Society for Testing & Materials
• American Welding Society
• California Council of Testing & Inspection Agencies
• California Department of Transportation
• Cement & Concrete Reference Laboratory
• Division of the State Architect, LEA Numbers 29, 54 and 130
• International Conference of Building Officials
• Office of Statewide Health Planning & Development
• The American Society for Non-Destructive Testing

American Association of State Highway and Transportation Officials (AASHTO)
Consolidated Engineering Laboratories are accredited by the American Association of State Highway and Transportation Officials (AASHTO). This accreditation provides verification to our customers that our personnel, equipment and quality systems follow accepted standards. Our accreditation includes the following standards:

• ASTM E329 Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction
• ASTM C1077 Standard Practice for Laboratories Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Laboratory Evaluation
• ASTM D3666 Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• ASTM D3740 Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soils and Rock as Used in Engineering Design and Construction