According to the provisions of the Factories Law, every inspectable machinery must be inspected at the following intervals:
- Lifts and Hoists: once every 6 months
- Chains, ropes and lifting tackle: once every 6 months
- Cranes, overhead travelling cranes and other lifting appliances: once every 12 months
- Steam boilers: once every 12 months
- Steam receivers: once every 26 months
- Air receivers: once every 26 months