A thorough inspection of all chains in use shall be made very how many months?

• A. 3 months
• B. 6 months
• C. 12 months
• D. 24 months

Answer: (C)

Chains need a thorough check to catch wear, cracks, deformation, corrosion, or other damage that could lead to sudden failure. This comprehensive inspection is performed by a qualified person and is scheduled at regular intervals to ensure problems are detected before they become dangerous. The standard interval for a thorough, formal inspection of chain slings is once every 12 months. This yearly cadence provides a reliable balance between safety and practicality, while in-service checks should still be done before each shift to look for obvious damage. So, the thorough inspection should occur every year.