A worker can hold the right licence and complete nationally recognised training, but still need to demonstrate they can safely operate equipment in a new workplace environment. Plant models differ, site conditions change and procedures vary from one job to the next. That is where a Verification of Competency (VOC) comes in.
A Verification of Competency, or VOC, is used to confirm that a worker can safely perform a task or operate specific plant and equipment in real workplace conditions. Common across construction, mining, warehousing, transport and heavy industry, VOC assessments help PCBUs meet their duty of care obligations under Australian WHS legislation while reducing the risk of incidents on site.
For employers, supervisors and workers alike, understanding what a VOC assessment involves is an important part of maintaining a safe and compliant workplace.
What is a verification of competency?
A Verification of Competency (VOC) is a practical assessment used to confirm that a worker can safely and competently carry out a task in a workplace setting.
In plain English, it is a way of checking that someone can still do the job safely using the actual equipment, procedures and conditions they will encounter on site.
A VOC assessment is commonly used for plant and equipment operators, including workers operating forklifts, cranes, elevated work platforms, earthmoving equipment and other high-risk machinery. It may also apply to workers performing dogging, rigging, confined space work or other specialised activities where competency needs to be verified before work begins.
Importantly, a VOC is different from initial training or licensing.
A high risk work licence or statement of attainment shows that a worker successfully completed formal training at a point in time. A VOC assessment confirms they can still apply those skills safely and correctly in practice within the context of a particular workplace.
For example, a worker who has operated one type of elevated work platform for years may still require a VOC assessment before using a different model on a busy construction site with unfamiliar exclusion zones and traffic movements.
Although people sometimes refer to VOC training, a VOC is generally an assessment process rather than a formal training course. In some workplaces, workers may also receive a VOC certificate or site record once competency has been verified.
This distinction between qualifications and demonstrated workplace competency is increasingly important in modern WHS systems, particularly when considering the difference between certifications and competency.
Who needs a verification of competency?
VOC requirements are most commonly applied to workers performing high-risk work or operating plant and equipment where errors could result in serious injury, property damage or operational disruption.
Under the Model WHS Regulations developed by Safe Work Australia, PCBUs have a duty to ensure workers are competent to perform the tasks they are assigned. That duty of care extends beyond simply checking licences or training certificates.
In practice, this means employers often use VOC assessments to verify that workers can safely operate equipment in real-world conditions before allowing them onto site.
Industries that commonly require VOC assessments include:
- Construction
- Mining and resources
- Warehousing and logistics
- Manufacturing
- Transport and infrastructure
- Civil works
- Oil and gas operations
Common situations that trigger a VOC assessment include:
- Starting with a new employer
- Arriving at a new site
- Operating unfamiliar plant or equipment
- Returning to work after an extended absence
- Following a workplace incident or near miss
- Introducing updated procedures or safety systems
For example, an experienced excavator operator moving from a civil construction project to a mining site may require a new VOC assessment because the site conditions, equipment specifications and operational risks are significantly different.
VOC requirements may also vary depending on the relevant state or territory WHS regulator, the site operator and the plant or task involved.
A VOC assessment can also help employers demonstrate due diligence if a regulator investigates an incident involving plant or high-risk work activities.
How is a VOC conducted?
A VOC assessment is typically conducted as a practical, workplace-based assessment rather than a classroom training course.
The process usually involves a competent assessor observing the worker performing normal job tasks using the actual plant, equipment and procedures relevant to that workplace.
Depending on the task being assessed, the VOC process may include:
- Pre-start inspections
- Equipment operation
- Hazard identification
- Safe work procedures
- Shutdown and isolation procedures
- Communication protocols
- Emergency response actions
- Load handling or task-specific techniques
The assessor may also ask verbal questions to confirm underpinning knowledge, including site rules, risk controls and safe operating procedures.
Importantly, a VOC assessment is usually site-specific. A worker may successfully complete a VOC on one type of machinery or at one workplace but still require reassessment elsewhere.
For example, operating a forklift in a small warehouse environment differs significantly from operating one in a busy freight yard with large vehicle movements and different load characteristics.
In many workplaces, the assessor is a competent person with the knowledge, training and experience to assess the task safely and accurately.
That assessor does not necessarily need to work for a Registered Training Organisation (RTO). In many workplaces, VOC assessments are conducted internally by experienced supervisors, trainers or safety personnel with relevant operational expertise.
Unlike formal training that leads to a statement of attainment, a VOC assessment is focused on confirming current workplace competency rather than delivering nationally recognised training.
How often is a VOC required?
One of the most common questions employers ask is how often a VOC assessment needs to be completed.
There is no single national rule that prescribes a fixed timeframe for all VOC assessments across Australia. Instead, the frequency is generally determined by the level of risk associated with the work being performed.
In most cases, the PCBU decides when reassessment is required based on operational risks, site policies and WHS obligations.
Many workplaces conduct repeat VOC assessments when:
- A worker changes sites
- New plant or equipment is introduced
- Work procedures significantly change
- A worker returns after a long absence
- An incident or near miss occurs
- Concerns arise about a worker’s competency
- Periodic compliance reviews are scheduled
Some industries or principal contractors may also require annual VOC assessments as part of site access requirements, even where legislation does not specify an exact timeframe.
This risk-based approach aligns with broader Australian WHS principles and the way regulations and codes of practice operate in Australian workplaces.
It is also important to distinguish between a standard VOC assessment and a Re-assessment of Competency (ROC). A VOC is usually a general verification of a worker’s current competency for a task or site, while a Re-assessment of Competency is typically triggered by a specific concern such as an incident, long absence or a change in equipment or procedures.
VOC vs licence vs certification – what’s the difference?
The terms VOC, licence and certification are often confused, but they serve different purposes within Australian workplace safety systems.
A high risk work licence is a formal regulatory licence issued by a state or territory authority. It is legally required for certain classes of high-risk work, such as forklift operation, dogging, rigging and crane operation.
To obtain a high risk work licence, workers must complete nationally recognised training through an RTO and successfully demonstrate competency against nationally approved units of competency.
A statement of attainment or certification is the formal training outcome issued by the RTO after successful course completion. It confirms that the worker completed the required training and assessment.
A VOC assessment, by contrast, is generally employer or site-driven. It is used to verify that the worker can safely apply those skills in the workplace where the work will occur.
In simple terms:
- A licence proves you were trained and authorised
- A statement of attainment proves you completed the course
- A VOC confirms you can safely perform the work here and now
For PCBUs, all three elements may play an important role in meeting WHS obligations and demonstrating due diligence.
Understanding how these different requirements fit together is an important part of understanding Australian WHS legislation more broadly.
A Verification of Competency is ultimately about more than paperwork. It gives employers, supervisors and workers greater confidence that plant and high-risk tasks can be carried out safely under real site conditions, with the equipment and procedures actually in use.
If your workplace needs support with competency verification, high risk work training or plant operator assessment pathways, AlertForce can help.
