Certificate III in Plumbing 

Yes.

This qualification is listed on training.gov.au and delivered through an authorised Registered Training Organisation (RTO).

Once successfully completed, you receive a nationally recognised qualification.

To achieve CPC32420 Certificate III in Plumbing, you must complete:

• 45 units of competency

This includes:

• 28 common core units
• Stream core units, depending on the selected stream
• Elective units, as specified within the stream packaging rules

Streams available include:

• Plumbing and Services
• Mechanical Services
• Fire Protection
• Roof Plumbing

Units must be selected in accordance with the official CPC32420 packaging rules published on training.gov.au.

This qualification is designed for experienced construction professionals.

You must have relevant industry experience if applying via Recognition of Prior Learning (RPL).

Yes — some units within CPC32420 have prerequisite requirements.

Units marked with an asterisk (*) in the official unit list indicate that a prerequisite requirement must be met before assessment can occur.

All prerequisite units must be completed prior to undertaking assessment for the relevant unit.

Your assessor will confirm whether you meet any prerequisite requirements based on your previous training or experience.

The 28 common core units for CPC32420 are:

• BSBESB402 – Establish legal and risk management requirements of small business
• BSBESB407 – Manage finances for new business ventures
• CPCCCM2006 – Apply basic levelling procedures
• CPCCCM2012 – Work safely at heights
• CPCCCM3001 – Operate elevated work platforms up to 11 metres
• CPCCOM1012 – Work effectively and sustainably in the construction industry
• CPCCOM1013 – Plan and organise work
• CPCCOM1014 – Conduct workplace communication
• CPCCOM1015 – Carry out measurements and calculations
• CPCPCM2043 – Carry out WHS requirements
• CPCPCM2047 – Carry out work-based risk control processes
• CPCPCM2055 – Work safely on roofs
• CPCPCM2056 – Use construction tools and equipment
• CPCPCM2057 – Perform plumbing calculations
• CPCPCM3021 – Flash penetrations through roofs and walls
• CPCPCM3022 – Install and test below-ground sanitary drainage
• CPCPCM3023 – Install and test above-ground sanitary plumbing
• CPCPCM3024 – Install and test heated and cold water services and systems
• CPCPCM3025 – Install and test water service backflow prevention devices
• CPCPCM3026 – Install and test drainage pumps and pump systems
• CPCPCM3027 – Install and test gas consumer piping
• CPCPCM3028 – Install and test gas appliances
• CPCPCM3029 – Install and test gas control devices
• CPCPCM3031 – Install and test sanitary fixtures
• CPCPCM3032 – Install and test water heating systems
• CPCPCM3033 – Install and test greywater and recycled water systems
• CPCPCM3034 – Install and test fire service systems
• CPCPCM3035 – Install and test rainwater harvesting systems

Elective units for CPC32420 are selected based on the chosen stream of study.

This qualification includes the following streams:

• Plumbing and Services
• Mechanical Services
• Fire Protection
• Roof Plumbing

Each stream has specified core and elective units that must be completed as outlined in the official CPC32420 packaging rules.

Elective units must be selected in accordance with the stream requirements and the official packaging rules published on training.gov.au.

Your assessor or training provider will confirm the appropriate stream and unit selection to ensure compliance with qualification requirements.

Start with the free 60-second skills assessment.

If you have several years of hands-on residential construction experience and have supervised or managed projects, you may be suitable for RPL.

If you’re not suitable, we’ll let you know before you commit.

Enrolment, LLN assessment and system access are free.

Once you enrol, you will:

• Complete a short Language, Literacy and Numeracy (LLN) check
• Gain access to the OnlineRPL student portal
• View your qualification structure and evidence requirements

There is no payment required to enrol or access the system.

If you decide to proceed with the assessment process, the initial $199 payment is required to unlock the formal evidence stage.

After this payment is made, you will:

• Receive structured guidance on what evidence to provide
• Upload your work history, documents and project examples
• Work directly with your assessor
• Complete a competency conversation if required
• Receive your assessment outcome once competency has been determined

All assessments are conducted against nationally recognised competency standards.

Many experienced builders do not have perfectly organised documentation.

That’s normal.

You can use:

• Photos and videos of completed projects
• Statutory declarations
• Client references
• Work diaries
• Contracts or invoices
• Project plans

No.

RPL is an assessment process.

You must demonstrate competency against national standards.

If you do not meet the required outcomes, additional assessment will be required.

This is a self-paced assessment process.

You progress at your own speed.

Timeframes depend on:

• How quickly you upload your evidence
• The completeness and quality of your submission
• Assessor review and feedback time

There are no fixed class schedules or study timetables.

Experienced candidates who submit clear, well-organised evidence often co

This qualification is commonly used to support builder licence applications.

However, licensing requirements are set by each state authority and may include additional requirements such as:

• Experience thresholds
• Financial checks
• Insurance requirements

You must confirm licensing criteria with your state regulator.

Payment is structured across stages to align with the assessment process.

Your initial payment unlocks the evidence stage.

Remaining payments are aligned with assessment milestones.

Full pricing details are available on the pricing page.

OnlineRPL is designed specifically for experienced trades and construction professionals.

Our platform delivers one of the most cost-effective pathways to achieving your RPL qualification — without cutting corners on compliance or assessment standards.

Our process is:

• Structured
• Transparent
• Nationally recognised
• Fully compliant with training package requirements
• Built for working tradies
• Self-paced and flexible

We focus on proper assessment against national standards — not shortcuts.

You only pay when you’re ready to proceed with assessment, and pricing is structured to keep the process accessible while maintaining quality.