Work Health and Safety (WHS) compliance on construction sites is not something you can figure out as you go. The construction industry consistently accounts for a disproportionate share of workplace injuries and fatalities in Australia, and the regulatory framework in NSW reflects the seriousness of these risks.

Whether you are a principal contractor, a subcontractor, or a business engaging workers on a construction site, this guide covers the key WHS obligations you need to understand and the common issues that lead to compliance failures.

The Legal Framework

WHS on construction sites in NSW is governed primarily by the Work Health and Safety Act 2011 (NSW) and the Work Health and Safety Regulation 2017 (NSW). These are supported by Codes of Practice and guidance material published by SafeWork NSW.

The legislation establishes a duty of care that applies to everyone involved in construction work — not just the builder. Understanding your specific duties under this framework is the starting point for compliance.

Key Duty Holders and Their Obligations

Person Conducting a Business or Undertaking (PCBU)

A PCBU is any person or entity conducting a business or undertaking. In construction, this includes builders, subcontractors, labour hire companies, designers, and even the property developer in some circumstances.

Every PCBU has a primary duty to ensure, so far as is reasonably practicable, the health and safety of workers and others who may be affected by the work. This is a broad obligation that covers safe work practices, safe plant and equipment, adequate training, and effective supervision.

Principal Contractor

For construction projects that exceed a certain threshold, a principal contractor must be appointed. The principal contractor has specific duties including:

Preparing and implementing a WHS Management Plan for the project
Displaying safety signage at the site entrance
Managing site access and ensuring only authorised, inducted workers enter the site
Coordinating the WHS activities of all persons carrying out work on the site
Maintaining a site-specific induction process for all workers

Officers

Officers (such as company directors and senior managers) have a positive duty to exercise due diligence in ensuring that the business complies with its WHS obligations. This means officers must take proactive steps to understand hazards, ensure resources are allocated to safety, and verify that compliance systems are actually working — not just documented.

Workers

Workers have a duty to take reasonable care for their own health and safety and the health and safety of others. They must comply with reasonable instructions, cooperate with WHS policies and procedures, and not intentionally or recklessly interfere with or misuse anything provided for safety.

The WHS Management Plan

For notifiable construction projects in NSW, the principal contractor must prepare a written WHS Management Plan before work begins. This plan must include:

The names, positions, and health and safety responsibilities of all persons at the workplace whose roles involve specific health and safety duties
The arrangements in place for consultation, cooperation, and coordination between all persons involved in the work
The arrangements for managing WHS incidents
Site-specific safety rules and requirements
The arrangements for the collection, assessment, monitoring, and review of safe work method statements (SWMS)

The WHS Management Plan is not a generic document that you pull off a shelf. It must be specific to the project, reflect the actual hazards present, and be reviewed and updated as conditions change throughout the project.

Safe Work Method Statements (SWMS)

A Safe Work Method Statement must be prepared for all high-risk construction work before that work commences. High-risk construction work includes activities such as:

Work at heights (where there is a risk of falling more than two metres)
Work in or near trenches or shafts
Work involving demolition
Work near energised electrical installations or services
Work in or near pressurised gas distribution mains or piping
Work involving a confined space
Work on or near telecommunications towers
Work involving diving
Work in areas that may have contaminated or flammable atmospheres

The SWMS must identify the work activity, the hazards associated with it, and the control measures that will be implemented. Workers performing the high-risk work must have access to the SWMS and be able to demonstrate that they understand and are following it.

Common WHS Violations on Construction Sites

Certain issues come up repeatedly in SafeWork NSW enforcement actions and workplace incident investigations:

Inadequate Fall Protection

Falls from height remain one of the leading causes of death and serious injury in construction. Common issues include missing edge protection, scaffolding not erected or maintained to standards, workers not using harnesses when required, and inadequate planning for work at heights.

Poor Housekeeping

Cluttered, disorganised sites create trip hazards, obstruct emergency access, and increase the risk of incidents with plant and vehicles. Good housekeeping is one of the simplest and most effective safety measures — and one of the most commonly neglected.

Electrical Safety Failures

Unprotected electrical leads, missing residual current devices, improper use of electrical equipment in wet conditions, and work near overhead or underground power lines are all frequently identified issues.

Inadequate Traffic Management

On sites where vehicles and pedestrians share space, poor traffic management leads to serious incidents. This includes missing exclusion zones, inadequate signage, lack of spotters for reversing vehicles, and poorly defined pedestrian routes.

Missing or Inadequate SWMS

Either not preparing SWMS for high-risk work, or preparing generic documents that do not reflect the actual work being done, is a common compliance gap. SWMS need to be specific, current, and genuinely used on site — not just filed in the office.

PPE Requirements

Personal Protective Equipment (PPE) is the last line of defence — not the first. That said, PPE requirements on construction sites are non-negotiable. Standard PPE on most construction sites includes:

Hard hat (compliant with the relevant Australian Standard)
High-visibility clothing
Safety boots with steel toe caps
Safety glasses or goggles (where required by the task)
Hearing protection (where noise levels exceed safe thresholds)
Gloves (appropriate to the task)
Fall protection harnesses (for work at heights)

The specific PPE requirements depend on the hazards present. The site safety plan should specify what is required, and supervisors should enforce compliance.

Incident Reporting and Notification

When a workplace incident occurs on a construction site, there are specific reporting obligations:

Notifiable Incidents

Certain incidents must be reported to SafeWork NSW immediately. These include:

The death of a person
A serious injury or illness (as defined in the Regulation)
A dangerous incident (a near miss with the potential for serious harm)

For notifiable incidents, the site must be preserved (not disturbed) until an inspector directs otherwise, except to assist an injured person, make the site safe, or as directed by police.

Record Keeping

All incidents, including those that do not meet the notification threshold, should be recorded and investigated internally. This includes near misses, which are often the precursors to serious incidents.

Building a Safety Culture

Compliance with WHS legislation is the minimum standard — it is not the same thing as having a safe workplace. A genuine safety culture goes beyond checking boxes. It means that safety is part of every conversation, every decision, and every action on site. Workers feel empowered to speak up about hazards, supervisors lead by example, and the business invests in training, equipment, and systems that make safe work the easiest way to work.

For more on how we approach WHS across all our operations, visit our WHS and safety page. If you are looking for a construction partner that takes safety as seriously as delivery, we are happy to discuss how we manage WHS on our projects.

WHS Compliance on Construction Sites in NSW: What Every Builder Needs to Know