Certificate 4 in Plumbing

Certificate IV in Plumbing and Services - CPC40920

Join thousands of people converting their experience into nationally recognised qualifications through Recognition of Prior Learning

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


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.


Packaging Rules

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

10 core units plus

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

BSBESB402- Establish legal and risk management requirements of new business ventures

CPCCBC4012 - Read and interpret plans and specifications

CPCPCM4011 - Carry out work-based risk control processes

CPCPCM4012 - Estimate and cost work

CPCPCM4015 - Access and interpret regulatory requirements for the plumbing and services industry

CPCPDR4011 - Design and size sanitary drainage systems

CPCPDR4012 - Design and size stormwater drainage systems

CPCPGS4011 - Design and size consumer gas installations

CPCPSN4011 - Design and size sanitary plumbing systems

CPCPWT4011 - Design and size heated and cold-water services and systems


Group A 

BSBESB403 -Plan finances for new business ventures

CPCCBC4002 - Manage work health and safety in the building and construction workplace

CPCCBC4019 - Apply sustainable building design principles to water management systems

CPCCBC4024 - Resolve business disputes

CPCPCM4013 - Produce 2-D architectural drawings using design software

CPCPDR4013 - Design and size domestic treatment plant disposal systems

CPCPPS5033* - Design vacuum sewerage systems

CPCPFS402z* - Design residential fire sprinkler systems

CPCPMS4011 - Design, size and lay out heating and cooling systems

CPCPMS4023 - Design compressed air systems

CPCPRF4011

Design and size roof drainage systems


Group B

CPCPCM2043 - Carry out WHS requirements

CPCPDR3023* - Install on-site domestic wastewater treatment plants and disposal systems

CPCPFS3037* - Install residential life safety sprinkler systems

CPCPFS4021 - Commission domestic and residential fire suppression sprinkler systems

CPCPGS3053 - Disconnect and reconnect Type A gas appliances

CPCPGS4022* - Service Type A gas appliances

CPCPGS4023* - Install, commission and service Type B gas appliances

CPCPMS4022* - Commission air and water systems

CPCPWT3022* - Install and commission water heating systems and adjust controls and devices

CPCPWT3027* - Install backflow prevention devices

CPCPWT4022* - Commission and maintain backflow prevention devices

CPCPWT4023* - Commission and maintain hot and heated water temperature control devices

UEERL0004 - Disconnect-reconnect electrical equipment connected to low voltage (LV) installation wiring

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