BOSH SO2 study materials
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BOSH SO2: Contractor and Supply Chain Management

BOSH SO2 · Work through your exam, one topic at a time.

All guide sections

Contractor and Supply Chain Management

What this domain tests

This domain tests whether you can manage shared risk when work is performed by contractors or suppliers. The host employer cannot simply transfer all responsibility by contract. It must select competent contractors, share hazard information, control interfaces, supervise and monitor performance.

Core rules

  • Pre-qualify contractors for competence, licences, insurance, training, equipment and safety performance.
  • Exchange information on hazards, emergency arrangements, isolation points and site rules before work starts.
  • Use permits for high-risk work such as hot work, confined-space entry, excavation and work at height.
  • Define supervision and interface responsibilities; contractors must control their own workers, but the host must coordinate shared risks.
  • Monitor performance through inspections, incident reporting and review; act on poor performance.

Worked example

A contractor performs hot work in a warehouse containing flammable packaging. A reasoned control set includes a permit, removal or protection of combustibles, fire watch, suitable extinguisher, clearance from the host, isolation of detectors if needed and a post-work check. The reasoning is that the contractor controls the task, but the host controls the warehouse conditions and must coordinate the interface.

Traps

Assuming the contractor carries all responsibility; no site induction; no permit for high-risk work; failing to coordinate simultaneous operations; not reviewing contractor incidents or poor performance.