An Aggregate Testing Technician is an individual who has demonstrated the knowledge and ability to properly perform, record, and report the results of basic field and laboratory procedures for aggregates. This two-day course involves a full day of classroom instruction. The second day begins with a two-hour written test that is open book followed by

Written retesting is available for the following classes: Concrete Field Testing Technician – Grade I (MDOT Class 1) Aggregate Testing Technician- Level 1 (MDOT Class 2) Concrete Strength Testing Technician MDOT Class 3 Concrete Technician For more information, download the Certification Registration and Policy Information form.