WHS Consultation, Cooperation and Coordination Guide

Good WHS consultation means involving affected workers in health and safety decisions and working with other businesses to manage shared risks. On a building site, it helps the builder, subcontractors, supervisors and tradies understand what is happening, who may be affected, which controls apply and who is responsible for each action.

Information current: 5 August 2026.

Why consultation matters on construction sites

Construction work changes quickly. Different trades may share access routes, plant, work areas, services and deadlines. One contractor’s activity can introduce a hazard for another crew even when both businesses have sound procedures for their own work.

Under the model WHS framework, businesses consult workers who are, or are likely to be, directly affected by a health and safety matter. This can include employees, subcontractors, labour-hire workers, apprentices and other people carrying out work for the business. Businesses sharing a WHS duty also consult, cooperate and coordinate with each other.

Main hazards to discuss

Consultation should cover both the work itself and the way activities interact. Common site issues include:

mobile plant operating near pedestrians, deliveries or other trades
work at height above occupied areas or access routes
electrical, hydraulic or mechanical isolations affecting several contractors
excavation, demolition, lifting or structural work changing site conditions
dust, noise, chemicals and other exposures reaching nearby workers
fatigue, workload, unclear instructions, bullying or other psychosocial hazards.

Poor coordination can leave gaps, duplicate incompatible controls or create assumptions that someone else is managing the risk.

What should be sorted before work starts

Consultation should begin while the work is being planned and continue while the parties remain involved. Before mobilisation or a new stage of work, the relevant people should establish:

the scope, sequence and location of each contractor’s activities
which workers and other people may be affected
known hazards, proposed controls and possible interactions between trades
who controls the workplace, plant, services, access and key decisions
responsibilities for isolations, permits, barricades, amenities and emergency arrangements
how changes, incidents, defects and unresolved issues will be communicated and escalated.

Workers doing the task often know where the practical difficulties are. Their views should be sought early enough to influence the decision, not after the method has already been locked in.

What good consultation and documents usually cover

Effective consultation involves sharing relevant information, giving affected workers a reasonable opportunity to raise concerns and suggest controls, considering their views, and advising them of the decision and reasons. If workers have an elected health and safety representative, that representative should be involved as required.

Useful site arrangements may include:

inductions, pre-start briefings and toolbox talks
risk assessments, site rules and work procedures
WHS management plans and coordination arrangements where applicable
traffic, lifting, emergency and environmental plans
permits, isolation records and plant or service handover records
short consultation and action records showing owners and due dates.

Consultation records can be simple. Recording the issue, participants, decision, reasons, actions, responsible person and completion date helps supervisors follow matters through and provides useful evidence of implementation.

When a SWMS or another site-specific document applies

A SWMS commonly applies when planned construction work falls within the high risk construction work categories applying in the relevant jurisdiction. It should match the actual task, work area, hazards, control measures and site interfaces, and the workers carrying out the work should be consulted.

Other work may be covered through a suitable risk assessment, safe work procedure, permit, lift plan, isolation plan or task briefing. Where a WHS management plan is required, its consultation and coordination arrangements should connect these documents across the project rather than leaving each subcontractor to work in isolation.

Practical warning signs

Review the arrangements when:

workers hear about changes only after work has started
two trades give conflicting instructions or use incompatible controls
responsibilities are described as “the builder’s problem” or “the subbie’s job”
pre-starts record attendance but no issues, decisions or actions
repeated concerns remain open without an owner or due date
site conditions or sequencing change without reviewing affected controls.

How Blue Safe can help

Blue Safe provides compliant WHS documents tailored to the client’s activities, applicable Australian WHS/OHS requirements, jurisdiction and industry. Blue Safe guarantees the document compliance of the WHS documents it provides, including eligible customer documents after Blue Safe has reviewed and upgraded them.

This can include coordinated policies, procedures, plans, registers, forms and task documents that give builders, subcontractors and supervisors a practical framework for consultation and action. Customers actively put the compliant documents into practice through controls, consultation, training, actions, records and evidence.

Official sources

Local requirements vary, so check current regulator material for the jurisdiction and project. The national Model Code provides general orientation and is not automatically the applicable law in every Australian jurisdiction.

Work Health and Safety Consultation, Cooperation and Coordination