Accreditations/Certifications, Pre-qualifications & Affiliations
   

ACCREDITATIONS/CERTIFICATIONS

American Association of State Highway and Transportation Officials (AASHTO) Accredited for Aggregates and Portland Cement Concrete
   
Army Corps of Engineers Validated Laboratory for Aggregate and Portland Cement Concrete
   
Illinois Dept. of Transportation (IDOT) Approval Laboratory for Aggregates and Portland Cement Concrete

PRE-QUALIFICATIONS

State of Illinois Capital Development Board
   
Illinois Department of Transportation
   

AFFILIATIONS

American Industrial Hygiene Association (AIHA) Proficiency in Analytical Testing (PAT) Program
   
American Conference of Governmental Industrial Hygienists (ACGIH)
   
AASHTO Material Reference Laboratory (AMRL) Aggregate Proficiency Sample Program
   
Cement & Concrete Reference Laboratory (CCRL) Concrete Proficiency Sample Program
   
American Concrete Institute (ACI)
   
American Society of Testing Materials (ASTM)
   
Associated General Contractors (AGC)
   
Mattoon Chamber of Commerce