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 T40/ASTM D140 Sampling Bituminous Materials; AASHTO T40/ASTM D979 Sampling Bituminous Paving Mixtures; AASHTO R47 Reducing Samples of HMA to Testing Size; AASHTO T329 Moisture Content of Hot Mix Asphalt (HMA) by Oven Method; MoDOT TM54 Determining Asphalt Content of a Bituminous Mixture by Nuclear Method; AASHTO T166 & T331 Bulk Specific Gravity of Compacted Bituminous Material; AASHTO T269/ASTM D3203 Percent Air Voids in Compacted Dense and Open Bituminous Paving Mixtures; MoDOT TM20 Measurement of Air, Surface or Bituminous Mixture Temperature.