This is a renewal course. If you are not currently certified you must take the First Time Certification course. The certification process includes a written examination followed by performance demonstrations. This course covers the following test methods: AASHTO T2/ASTM D75 Sampling of Aggregates; AASHTO T248/ASTM C702 Reducing Samples of Aggregate to Testing Size; AASHTO T11/ASTM C117 Materials Finer Than No. 200 by Washing; AASHTO T27/ASTM C136 Sieve Analysis of Fine and Course Aggregates; AASHTO T255/ASTM C566 Total Moisture Content of Aggregates by Drying; MoDOT TM71 Deleterious Content of Aggregate; ASTM D4791 Flat Particles, Elongated Particles, or Flat & Elongated Particles in Course Aggregates.