o Contractor Certifications definition
o Contractor Certifications. Traffic Control Supervisor, Testing Certifications (i.e., Certified Aggregate Technician, Certified Embankment Technician, Certified Density Technician, Quality Control Technician o Quality Control Testing Laboratory Certification EOR will engage a blasting specialist as a subcontractor who will review Blasting Plan, Blast Monitoring Plan, Vibration Limits, etc.