New fact sheet provides guidance on OHS duties in a contractual chain

New Fact Sheet Provides Guidance on OHS Duties in a Contractual Chain

Safe Work Australia has released a new fact sheet aimed at persons conducting a business or undertaking (PCBUs) and workers who operate as part of a contractual chain. Contractors, subcontractors, and principal businesses involved in shared projects will find this resource useful for clarifying their respective WHS obligations.

What Is a Contractual Chain?

"A contractual chain refers to the situation where, in relation to the same project or work matter, there are multiple contractors and subcontractors," Safe Work Australia said.

This arrangement is common across several industries, including road transport, construction, and events management, where numerous businesses may be engaged on a single work matter at once.

Understanding PCBU Roles Within the Chain

The fact sheet describes what constitutes a PCBU and clarifies that a contractor can hold dual status — acting as both a PCBU and an employee on the same job. This distinction matters because duties differ depending on which role applies at any given time during the work.

"Understanding this will help PCBUs within a contractual chain uphold their WHS obligations and consult, cooperate and coordinate activities with all other PCBUs with whom they share a duty," Safe Work Australia said.

Why This Guidance Matters for Risk Management

Clear delineation of duties within a contractual chain reduces confusion around who holds responsibility for particular hazards, plant, or work activities on site. When multiple contractors manage overlapping tasks, poor coordination raises risk for everyone involved, from ground-level workers up through senior management.

Effective management of shared duties requires ongoing consultation between all parties. Businesses engaged in high risk work — such as operating plant, conducting construction work, or managing hazardous processes — should pay particular attention to how responsibilities are divided and documented throughout each project's contractual chain.

Key Takeaways for PCBUs

• Multiple contractors and subcontractors working on one project constitute a contractual chain
• Road transport, construction, and events management commonly feature this arrangement
• A contractor may simultaneously be classed as a PCBU and worker
• Consultation, cooperation, and coordination between PCBUs are essential for meeting shared WHS duties
• Proper risk management around plant, high risk work, and site activities depends on clear duty allocation

For businesses seeking further clarity, this fact sheet offers practical information to support compliance across complex project structures. Related resources, including guidance on respiratory protective equipment and solar ultraviolet radiation exposure, can help PCBUs build a broader risk management framework across their operations.

Businesses managing transport and warehousing operations may also benefit from reviewing the Warehousing OHS-WHS Industry Suite, which supports risk management practices relevant to contractual chain arrangements in logistics settings.

For manufacturing operations navigating similar multi-contractor arrangements, the Manufacturing OHSE Management System provides a structured approach to managing plant, work processes, and contractor obligations.

Readers interested in how WHS harmonisation shapes duties across jurisdictions can explore our overview of OHS Harmonisation for additional context.

Source: Safe Work Australia website.