California Department of Transportation
Coronado Bridge Carquinez Bridge San Francisco/Oakland Bay Bridge Richmond San Rafael Bridge

Materials Engineering and Testing Services

Office of Roadway Materials Testing

Joint Training and Certification Program (JTCP)

Caltrans, local agencies, and industry have established a joint training and certification program (JTCP) to make the certification process more efficient and to ultimately obtain consistent, reliable, quality testing through joint training. The need to build a proficient workforce to efficiently manage an ever increasing workload is highlighted with the recent passing of SB1. Through the JTCP, testing technicians will receive training, gain proficiency and become certified to sample and test highway construction materials. The JTCP will offer training and certification in hot mix asphalt (HMA), soils and aggregates (S/A), and portland cement concrete (PCC). Training and certification will become mandatory for all technicians sampling and/or testing materials on all Caltrans projects. Through a partnership with CSU Long Beach and San Jose State University, JTCP offers four Modules covering several key test methods including:

Hot Mix Asphalt I (HMA I) Soils and Aggregate (S & A)
Test Method Name/Description
CT 105 Calculations - Gradings
CT 125 Sampling (HMA / Soil & Agg.)
AASHTO T 11 Sieve Analysis (Washing)
AASHTO T 27 Sieve Analysis
AASHTO T 176 Sand Equivalent
AASHTO R 76 Reducing Samples of Agg.
AASHTO T 255 Evaporable Moisture Content
AASHTO T 329 Moisture Content (Oven)
AASHTO T 335 Percentage of Fracture
AASHTO R 47 Reducing Samples of HMA
Test Method Name/Description
CT 105 Calculations - Gradings
CT 125 Sampling (Soil & Agg.)
CT 201 Sample Preparation
CT 202 Sieve Analysis
CT 205 Percent Crushed Particles
CT 216 Relative Compaction
CT 217 Sand Equivalent
CT 226 Moisture Content (Soil & Agg.)
CT 227 Cleanness Value
CT 229 Durability

Hot Mix Asphalt II (HMA II) Portland Cement Concrete (ACI Field Tech.-Grade I)
Test Method Name/Description
AASHTO T 166 Bulk SpG of Compacted HMA - SSD
AASHTO T 209 Max SpG and Density - HMA
AASHTO T 269 Percent Air Voids - HMA
AASHTO T 275 Bulk SpG - HMA
AASHTO T 308 AC Content (Ignition Oven)
Test Method Name/Description
ASTM C1064 Temperature of Concrete
ASTM C172 Sampling (Concrete)
ASTM C143 Slump
ASTM C138 Density, Yield, and Air Content
ASTM C231 Air Content (Pressure)
ASTM C173 Air Content (Volumetric)
ASTM C31 Making/Curing Specimens


JTCP Flyer: JTCP Frequently Asked Questions: JTCP Request Forms: JTCP News:

Additional information can be found on the CSU Long Beach website here

Questions? Contact the Joint Training and Certification Program at