Work health and safety planning helps Australian workplaces identify risks, clarify responsibilities and put practical controls in place before work begins. This becomes especially important on construction, civil and infrastructure projects, where multiple contractors, changing site conditions and higher-risk activities can make safety responsibilities more complex.
So, who is responsible for developing the WHS management plan? For construction projects in Western Australia that require a formal WHS management plan, the principal contractor must prepare a written WHS management plan before work on the project begins. Under WA’s WHS framework, a construction project involves construction work where five or more people are, or are likely to be, working at the same time at a construction site.
Outside this construction-project framework, PCBUs and other duty holders may still have broader responsibilities for managing workplace health and safety, even where the specific WHS management plan requirement does not apply.
While the principal contractor retains responsibility for the plan, effective WHS planning is rarely a one-person task. Workers, supervisors, subcontractors and safety management consultants can all contribute practical knowledge to help make safety systems site-specific, workable and aligned with WHS requirements.
What Is a WHS Management Plan?
A WHS management plan is a written document that sets out how health and safety will be managed across a construction project. It provides a clear framework for identifying responsibilities, coordinating different parties and managing safety throughout the work.
For construction projects in Western Australia, the plan must address key matters such as WHS roles and responsibilities, consultation and coordination between PCBUs, incident management, site-specific safety rules and arrangements for managing Safe Work Method Statements (SWMS).
Beyond these required elements, the plan and supporting WHS systems may address additional project-specific matters depending on the work being carried out and the risks involved, including:
- site hazards and risk controls
- emergency procedures
- incident reporting
- worker training and inductions
- consultation processes
- risk assessments and safe work methods
The plan needs to reflect how work will actually be carried out on site, including the people responsible for safety, the rules workers need to follow and the arrangements used to coordinate different contractors and activities. The principal contractor must also ensure, so far as reasonably practicable, that people carrying out construction work are made aware of the plan before starting work and know they have a right to inspect it.
Who Is Responsible for Developing the WHS Management Plan?
The Principal Contractor Has the Primary Responsibility
For a construction project in Western Australia, the principal contractor must prepare the written WHS management plan before work on the project begins. The principal contractor may be the PCBU commissioning the project or another PCBU engaged and authorised to manage the construction workplace.
The principal contractor may develop the plan internally or seek assistance from WHS professionals, but engaging another person to help prepare the document does not remove the principal contractor’s responsibility for meeting its WHS duties.
This requirement relates specifically to construction projects covered by the WHS regulations. Other workplaces still have WHS duties, but the obligations and documentation required will depend on the work and workplace involved.
WHS Planning Is a Shared Process
Although one party may have primary responsibility for the plan, effective WHS management depends on input from the people involved in the work. Site supervisors, workers, subcontractors, other PCBUs and safety consultants can all contribute information about hazards, work methods and changing site conditions.
This consultation is also an important part of WHS planning where several PCBUs are working together. The management plan needs arrangements for consultation, cooperation and coordination, helping different contractors understand how their work and risks interact on site.
What Must Be Included in a WHS Management Plan?
For WA construction projects, the WHS management plan needs to clearly identify how key safety responsibilities and project-wide arrangements will be managed. Required matters include WHS responsibilities, consultation between PCBUs, incident management, site-specific safety rules and arrangements for Safe Work Method Statements.
Depending on the project, the plan and supporting WHS systems may also include:
- project or workplace details
- key personnel and their WHS responsibilities
- hazard identification and risk-control processes
- incident reporting and investigation procedures
- worker consultation and communication arrangements
- training, induction and competency requirements
- emergency response procedures
- processes for reviewing and updating the plan
The level of detail will vary between projects. A smaller or less complex construction project may require different controls and coordination arrangements from major civil or infrastructure works involving multiple contractors and higher-risk activities.
The plan should remain practical. The principal contractor must review and, where necessary, revise the plan so it remains up to date, including when work methods, site conditions, responsibilities or risks change.
Why Professional WHS Support Can Help
Some organisations have experienced internal WHS teams, while others may need additional support, particularly when managing complex projects, multiple contractors or changing site risks. In these situations, external safety management consultants can provide specialist input while the principal contractor retains its statutory responsibilities for the construction project.
Professional WHS support can assist with areas such as:
- developing and reviewing safety management systems
- workplace risk assessments and hazard-control strategies
- incident investigations and recommendations
- WHS training and workforce capability
- management, governance and safety leadership
- systems aligned with standards such as ISO 45001
External WHS support can go beyond preparing documentation by assessing existing systems, workplace risks and site practices, then developing controls and recommendations that can realistically be applied by management and crews.
How Turtle Traffic Supports WHS Management Planning
Turtle Traffic draws on decades of industry experience across civil works, infrastructure, government contracting and major projects, where safety systems need to work under real site conditions.
Through its WHS & Management Consulting service, Turtle Traffic assists organisations with areas including:
- workplace risk assessments and hazard-control strategies
- WHS training and workforce capability
- incident investigation and recommendations
- ISO-aligned safety and management systems
- management and governance support
Turtle Traffic operates ISO-certified management systems covering ISO 9001 for quality, ISO 45001 for occupational health and safety and ISO 14001 for environmental management.
Its WHS consulting can also integrate with traffic management services on civil, infrastructure and live-road projects, where worker safety, vehicle movements and traffic risks need to be managed together.
Frequently Asked Questions
Who Writes a WHS Management Plan?
For a WA construction project, the principal contractor must prepare the written WHS management plan before work begins. Workers, subcontractors, supervisors and WHS consultants may all provide input, but this does not remove the principal contractor’s responsibility.
Can Safety Management Consultants Develop a WHS Management Plan?
Yes. Safety management consultants can assist with preparing, reviewing and improving WHS plans and supporting systems, particularly on projects involving complex risks or multiple contractors. The principal contractor still retains responsibility for meeting its legal obligations.
When Should a WHS Management Plan Be Prepared?
For a WA construction project, the WHS management plan must be prepared before work on the project begins. It should then be reviewed and revised as necessary so it remains current when site conditions, work methods, responsibilities or risks change.
Is a WHS Management Plan the Same as a SWMS?
No. A WHS management plan provides the broader framework for managing health and safety across a construction project. A Safe Work Method Statement (SWMS) is more specific and sets out the hazards, risks and control measures associated with particular high-risk construction work.
Getting WHS Management Planning Right
For construction projects in Western Australia, the principal contractor must prepare the written WHS management plan before work begins. While the principal contractor has that legal responsibility, effective WHS planning depends on input from supervisors, workers, subcontractors and other people who understand the work being carried out.
The plan should reflect current site conditions and work methods, be reviewed as the project changes and clearly communicate how safety will be managed to the people carrying out the work.
For organisations needing support with WHS systems and safety planning, Turtle Traffic’s WHS & Management Consulting team can assist with risk assessments, hazard-control strategies, WHS training, incident investigation and ISO-aligned management systems.