Certificate IV in Plumbing - RPL | Educube Pty Ltd
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Certificate IV in Plumbing and Services - CPC40920

Offered By

Building Institute NSW (RTO: 41442)

Qualification Name

Certificate IV in Plumbing and Services

Qualification Code and Units of Competency

Qualification Description

This qualification reflects the role of an experienced plumbing service operator with advanced technical skills and/or responsibility for project design and supervision; or a hydraulic consultant responsible for designing hydraulic components and systems that meet client requirements and help in effective water management in domestic, commercial and industry contexts.

Occupational titles could include:
- Plumbing contractor
- Hydraulic designer

The plumbing industry strongly affirms that training and assessment leading to recognition of skills must be undertaken in a real or closely simulated workplace environment and this qualification requires all units of competency to be delivered and assessed in this context.

Completion of the general construction induction training program specified by the model Code of Practice for Construction Work is required before entering a construction work site. Achievement of CPCCWHS1001 Prepare to work safely in the construction industry meets this requirement.

This is a licenced occupation in some jurisdictions. Licensing, legislative, regulatory and certification requirements may vary between states and territories. Relevant state and territory regulatory authorities should be consulted to confirm those requirements.

Entry Requirements

For the operations stream, a candidate must hold a Certificate III in Plumbing or be authorised to undertake plumbing work by an Australian regulator/licensing body.

There are no entry requirements for the hydraulic services design pathway.

Packaging Rules

To be awarded this qualification, competency must be achieved in:

15 units of competency:

-10 core units

-5 elective units  

For the award of the CPC40920 Certificate IV in Plumbing and Services (Hydraulic services design) electives are to be selected as follows:

15 units of competency:
10 core units
5 elective units from Group A
2 units may be replaced by units from other Training Packages or nationally accredited courses at Certificate IV level and above, provided they do not duplicate the outcome of another unit chosen for the qualification.
Electives cannot be selected from Group B.
For the award of the CPC40920 Certificate IV in Plumbing and Services (Operations) electives are to be completed as follows:

15 units of competency:
10 core units
at least 1 elective from Group B
the remaining 4 elective units from Group A or Group B
2 units may be replaced by units from other Training Packages or nationally accredited courses at Certificate IV level and above, provided they do not duplicate the outcome of another unit chosen for the qualification.
The elective units must ensure the integrity of the AQF alignment and contribute to a valid, industry-supported vocational outcome.

An asterisk (*) against a unit code below indicates that the unit has a prerequisite. Please check the unit for information on this. All prerequisites are packaged in the qualification.


Core Units 



Establish legal and risk management requirements of new business ventures


Read and interpret plans and specifications


Carry out work-based risk control processes


Estimate and cost work


Access and interpret regulatory requirements for the plumbing and services industry


Design and size sanitary drainage systems


Design and size stormwater drainage systems


Design and size consumer gas installations


Design and size sanitary plumbing systems


Design and size heated and cold-water services and systems



Group A  



Plan finances for new business ventures


Manage work health and safety in the building and construction workplace


Apply sustainable building design principles to water management systems


Resolve business disputes


Produce 2-D architectural drawings using design software


Design and size domestic treatment plant disposal systems


Design vacuum sewerage systems


Design residential fire sprinkler systems


Design, size and lay out heating and cooling systems


Design compressed air systems


Design and size roof drainage systems



Group B 



Carry out WHS requirements


Install on-site domestic wastewater treatment plants and disposal systems


Install residential life safety sprinkler systems


Commission domestic and residential fire suppression sprinkler systems


Disconnect and reconnect Type A gas appliances


Service Type A gas appliances


Install, commission and service Type B gas appliances


Commission air and water systems


Install and commission water heating systems and adjust controls and devices


Install backflow prevention devices


Commission and maintain backflow prevention devices


Commission and maintain hot and heated water temperature control devices


Disconnect-reconnect electrical equipment connected to low voltage (LV) installation wiring

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