Welcome to the Verify CCO Online (VCO) System of the National Commission for the Certification of Crane Operators (NCCCO). This database is a comprehensive directory of individuals who have been accredited and authorized by NCCCO to administer practical examinations for CCO certification programs. Search for a Practical Examiner To search the database please enter a valid NCCCO Practical Examiner (PE) Accreditation number and Last Name: Accreditation Number: Last Name: This credential has been authorized by responsible personnel. It is subject to applicable conditions and limitations, including provisions of suspension and revocation. The National Commission for the Certification of Crane Operators (NCCCO) issues CCO cards for Practical Examiners. These cards have a brown band across the bottom.