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


Crane Inspector

Overhead Crane Inspector Comprehensive Exam Outline

Core Crane Inspector Exam NOT Required

The Overhead Crane Inspector Comprehensive examination portion of the CCO Crane Inspector certification program tests the following knowledge areas relating to overhead cranes:

Domain 1: Pre-Inspection Survey
Approximately 14% of test 

Domain 2: Records Review
Approximately 6% of test 

Domain 3: Visual Inspection
Approximately 50% of test 

Domain 4: Operational Testing
Approximately 17% of test 

Domain 5: Load Testing
Approximately 7% of test 

Domain 6: 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 inspection
  3. Know what to communicate to the site supervisor/personnel on needs/requirements for inspection
  4. Have specific knowledge of cranes including:
    1. Configurations/types
    2. Terminology
    3. Applications
    4. Components
    5. Operator controls
  5. Knowledge of crane capacity as it relates to crane configuration
    1. Multiple trolleys
    2. Permanently attached material handling devices
  6. Know access to the work site
  7. Know how to identify job site hazards (e.g., obstructions, multiple cranes on the same runway)
  8. Know specific lock-out/tag-out procedures/requirements


  1. Know if given documentation is correct
    1. Application
    2. Maintenance
    3. Engineering
  2. Knowledge of what inspection records are required
  3. Know how to verify that the following 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. Knowledge of wire rope, including:
    1. Construction and specifications
    2. Rejection criteria
    3. Reeving specifications
  4. Ability to recognize existing or potential problems
  5. Know how to identify modifications and alterations
  6. General knowledge of the manufacturer’s requirements
    1. Inspection
    2. Maintenance
    3. Service requirements
    4. Limitations
  7. Know and understand the following components:
    1. Pneumatic
    2. Hydraulic
    3. Mechanical
    4. Electrical
    5. Structural
  8. Understand the requirements for component guarding
    1. Mechanical components
    2. Electrical
  9. Knowledge of inspection criteria for:
    1. Hooks
    2. Load blocks
    3. Sheaves
    4. Drums
  10. Knowledge of inspection requirements for operator controls:
    1. Pendant
    2. Radio/remote
    3. Cab
  11. General knowledge of the following for job site situations:
    1. Assist equipment (e.g., aerial work platform)
    2. Tools
    3. Personal protective equipment (PPE)
  12. Know how to verify requirements for safe access and egress
  13. Knowledge of travel systems:
    1. Tire requirements
    2. Wheels and end trucks
    3. Runway systems
  14. Know how to verify capacity markings of cranes
  15. Knowledge of load chains


  1. Knowledge of crane signals:
    1. Hand signals
    2. Voice signals
  2. Knowledge necessary to verify operational aids and limits are functioning properly
  3. Knowledge of:
    1. Control characteristics/functions
    2. Operating parameters/dynamic effects


  1. Know the requirements and limits of a load test and applicable environmental limits (temperature, etc.):
    1. Proof
    2. Load limiters
  2. Know the requirements for full operation of bridge and trolley movements


  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