In Australia, WHS has replaced OHS as the legally recognised framework for workplace safety. While the terms are often used interchangeably, they are not the same. For workers, supervisors, and business owners, misunderstanding the difference can lead to compliance gaps, training issues, or legal risks.
As a leading safety course provider in Perth, we help individuals and businesses understand how workplace safety laws apply in real-world settings. Whether you’re starting a career in safety, managing a team, or ensuring your workplace meets current requirements, understanding the difference between OHS and WHS is an essential first step.
What is OHS?
OHS, or Occupational Health and Safety, is the traditional term used to describe workplace safety practices focused on preventing injuries and illness. It primarily concentrated on employer responsibilities within specific occupations, requiring hazards to be managed and safe conditions to be maintained.
Although the term OHS is still commonly used in conversation and older documents, it generally refers to pre-harmonisation safety frameworks.
What is WHS and How Does It Work?
Work Health and Safety (WHS) is the modern system adopted under Australia’s harmonised safety laws, including in Western Australia. WHS places greater emphasis on shared responsibility and proactive risk management across all levels of a business.
Under WHS:
- Safety is a shared duty between employers, workers, and contractors
- Risks must be identified, assessed, and controlled before incidents occur
- Officers and managers have specific legal obligations
WHS also takes a broader approach to workplace health, covering physical safety as well as issues such as fatigue, stress, and long-term exposure risks.
Why Did Australia Move from OHS to WHS?
Australia transitioned from OHS to WHS to create consistent safety standards nationwide. Previously, each state operated under separate OHS laws, making compliance challenging for businesses working across multiple jurisdictions.
Although Western Australia was slower to adopt the harmonised model, WA is now aligned with the national WHS framework. This makes it critical for Perth-based employers and workers to rely on current WHS knowledge rather than outdated OHS practices.
Key Differences Between OHS and WHS
The main difference between OHS and WHS lies in responsibility and scope. WHS expands safety obligations beyond employers, creating a more proactive and accountable system across all workplaces.
| Aspect | OHS (Occupational Health and Safety) | WHS (Work Health and Safety) |
| Core Focus | Concentrates on safety within specific occupations | Applies to all forms of work and workplace activities |
| Legal Status | Older terminology used before harmonisation | Current legal framework under national laws |
| Responsibility | Primarily employer-focused | Shared responsibility across workers, officers, and PCBUs |
| Scope | Mainly physical injuries and hazards | Includes physical, psychological, and long-term health risks |
| Approach | Reactive, incident-based in many cases | Proactive risk management and consultation-driven |
| Relevance Today | Commonly used informally | Legally recognised and enforced standard |
Why is WHS Training Important?
Understanding WHS legislation is one thing, but applying it correctly in the workplace requires proper training. This is especially important for workers with safety responsibilities, supervisors, and those supporting WHS systems and procedures.
CORE Training Group offers both the Cert III and Cert IV in Work Health & Safety, providing practical, job-ready skills to:
- Identify and assess workplace hazards
- Support WHS compliance in line with current legislation
- Assist in implementing and monitoring safety procedures
These nationally recognised qualifications are ideal for those entering safety roles or advancing into higher-level WHS responsibilities.
Start Your WHS Training Today
Build the confidence and knowledge to support workplace safety and compliance with our Certificate III in Work Health & Safety.
Enrol today and take the next step toward a safer, more rewarding career.
