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Concrete Field Testing Technician—Grade I 

Concrete Strength Testing Technician

Concrete Laboratory Testing Technician - Level 1

Concrete Laboratory Testing Technician - Level 2

ACI Training Videos

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Western Alliance for Quality Transportation Construction (WAQTC) — Colorado Department of Transportation 

Labcat :

Level A: Laydown
Level B: Asphalt Plant Materials Control 
Level C: Mixture Volumetrics, Gyratory, Stability & Lottman
Level C minus Design: Volumetrics & Gyratory
Level E: Aggregates
Asphalt Paving Materials Inspector Certification 

Construction Inspector Certification Program — Colorado Department of Transportation

Online Nuclear Gauge Safety Class (Credit) - APNGA