National Commission for the
Certification of Crane Operators
Committed to Quality, Integrity, and Fairness in Testing since 1995


Crane Inspector

Written Exam - Core Exam Outline

Required for Mobile Crane Inspector and Tower Crane Inspector Certification ONLY

The Core Examination portion of the CCO Crane Inspector Written Examination tests the following knowledge areas relating to mobile and tower cranes (this exam NOT required for Overhead Crane Inspector certification):

Domain 1: Pre-Inspection Survey
Approximately 20% of test 

Domain 2: Records Review
Approximately 8% of test 

Domain 3: Visual Inspection
Approximately 66% of test 

Domain 4: Post-Inspection 
Approximately 6% of test 


  1. Knowledge of the standards and regulations applicable to crane inspection, including, but not limited to ASME B30 and OSHA 
  2. Knowledge of responsible parties involved in or pertaining to the pre-inspection 
  3. Know what to communicate to the site supervisor/personnel on needs/requirements for inspection 


  1. Know if given documentation is correct
    1. Application
    2. Maintenance
    3. Engineering
  2. Knowledge of which inspection records are required
  3. Know how to verify whether proper repairs have been performed with acceptable documentation
    1. Repairs
    2. Modifications/alterations


  1. Ability to identify the following conditions:
    1. Weld
    2. Corrosion
    3. Need for non-destructive testing
  2. Knowledge in proper operation of:
    1. Safety devices
    2. Operational aids
  3. General knowledge of wire rope
    1. Construction and specifications
    2. Reeving
    3. Rejection criteria
    4. Termination hardware
  4. Ability to recognize existing or potential problems
  5. Know how to identify modifications and alterations
  6. General knowledge of the manufacturers' requirements
    1. Inspections
    2. Maintenance
    3. Service requirements
    4. Limitations
  7. Ability to understand the requirements for component guarding
  8. General knowledge of inspection criteria for:
    1. Hooks
    2. Load blocks
    3. Sheaves
    4. Rigging
  9. General knowledge of upper and lower operating station (cab) inspection requirements
  10. General knowledge of the following for specific job site situations:
    1. Assist equipment (e.g., aerial work platform)
    2. Tools
    3. Personal protective equipment (PPE)


  1. Know and understand that the inspection/test procedure(s) did not cause damage per regulations and manufacturer’s requirements
  2. Know how to document/communicate the deficiencies and recommendations on the final report
  3. Knowledge of responsible parties involved in or pertaining to the post-inspection