RESOURCES Training Resources| Verifying Certification| Crane Inspector Directory| Certificant Resources| Industry Resources| Employer Awards| Safety Information, Research & Education Network| Military Personnel Assistance| NCCCO Foundation| CCO Store Training Resources Training Providers Directory| CCO Training Policy| Why Training Is Key| Failure by a Training Provider to Provide Services or Refund Fees| Reference Materials Reference Materials The following reference materials are used by NCCCO’s Examination Management Committees to verify the accuracy of CCO test questions. Candidates are advised to check all prices. Articulating Crane Reference Materials Articulating Crane Load Charts Crane Inspector Reference Materials Concrete Pump Reference Materials Dedicated Pile Driver Load Chart Dedicated Pile Driver Reference Materials Digger Derrick Reference Materials Digger Derrick Load Charts Drill Rig Reference Materials Lift Director Reference Materials Lift Director Load Charts Mobile Crane Reference Materials Mobile Crane Load Charts Overhead Crane Reference Materials Rigger Reference Materials Service Truck Crane Reference Materials Service Truck Crane Load Chart Signalperson Reference Materials Telehandler Reference Materials Tower Crane Reference Materials