Arizona Technical Testing Institute

Offers scheduled certification exams for asphalt, field, and soils/aggregates technicians throughout 2025 and 2026, including standard and emergency exam options, with public listing of certified technicians and their certification status.

Offers scheduled certification exams for asphalt, field, and soils/aggregates technicians throughout 2025 and 2026, including standard and emergency exam options, with public listing of certified technicians and their certification status.

Performs laboratory and field testing of construction materials using standardized methods, including liquid limit (AASHTO T89), plastic limit (AASHTO T90), Proctor density, sand cone field density, calcium carbide moisture content, and Rice Test for bituminous mixtures.

Performs laboratory and field testing using standardized methods including AASHTO T89 (liquid limit), AASHTO T90 (plastic limit), Proctor testing (Method A and D), sand cone field density, calcium carbide moisture content, and Rice Test for maximum theoretical specific gravity of bituminous mixtures.

Expands seating capacity for field exams, implements retake fees for non-ADOT technicians, and enforces COVID-19 safety protocols during exams to ensure operational safety and fairness.

Offers review classes (one or two days depending on exam type), online study guides, and instructional videos to help applicants prepare for certification exams, included in the registration fee.

Offers review classes (one or two days depending on exam type), online study guides, and instructional videos to help applicants prepare for certification exams, with review sessions included in the registration fee.

Implements operational policies such as adding exam seats, enforcing retake fees ($250 for non-ADOT technicians starting October 1, 2025), and maintaining safety protocols including COVID-19 guidelines for proctors and technicians.