Construction and Materials

Materials Quality Assurance

The Quality Assurance (QA) Section of the ADOT Materials Group is committed to insuring the highest-quality standard for materials sampling and testing throughout the state of Arizona.

The QA section performs these functions:

  • Manages the Annex Facility for the repair, fabrication and calibration of materials testing equipment
  • Develops, revises and issues materials for the quality-assurance manual and materials test methods
  • Inspects all ADOT and ADOT approved independent laboratories to ensure proper test methodology and equipment
  • Conducts the ADOT proficiency sample program
  • Maintains AASHTO accreditation of the Central Materials Laboratory
  • Assures that adequate and precise materials testing is performed in compliance with specifications on each ADOT project
  • Maintains a directory of ADOT approved materials testing laboratories
  • Works in conjunction with the Arizona Technical Training Institute (ATTI) and the American Concrete Institute (ACI) to ensure quality materials sampling and testing through technician certification
  • Provides input and expertise for materials-related areas
  • Administers the ADOT Radiation Safety Program
 Materials Quality Assurance Program

Designation Published Date  Title
 QA Program  January 17, 2014 Materials Quality Assurance Program
 Appendix A  January 17, 2014 Certification Acceptance Quality Assurance Requirement
 Appendix B  January 17, 2014 Final Certification of Materials for Consultant Administered Projects
 Appendix C  November 16, 2018 Sampling Guide Schedule
 Appendix D  January 17, 2014 Code of Federal Regulations (23 CFR 637, Subpart B) "Quality Assurance Procedures for Construction"
Certificates of Materials
 Designation Published Date Title
 Certificates  November 2, 2016 Certificate Requirement






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