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DEFWDV023 — Dive using closed-circuit breathing apparatus (N2O2) in open water to a maximum depth of 50 metres

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What an assessment for DEFWDV023 must cover

36 assessable components: 2 elements (8 performance criteria), 9 performance evidence and 19 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Operate a CCBA (N2O2) compressor or hand-booster pump

  • 1.1Inspect N202 compressor and associated equipment for serviceability and correct gas make-up in accordance with dive brief
  • 1.2Fit appropriate protective equipment in accordance with organisational procedures
  • 1.3Charge N202 gas cylinders to maximum working pressure and record details in relevant logs in accordance with operational procedures
  • 1.4Conduct operator level maintenance on N202 compressor and report defects, as required, in accordance with organisational procedures
  • 1.5Re-stow compressor after use in accordance with operational procedures

2 Conduct CCBA (N202) dive operations

  • 2.1Select, inspect and fit CCBA (N2O2), and conduct apparatus test prior to entering water and in-water, in accordance with dive plan
  • 2.2Use CCBA (N2O2) during dive operations and demonstrate relevant dive contingencies in accordance with organisational procedures and dive plan
  • 2.3Complete CCBA (N2O2) post-dive equipment serviceability checks in accordance with manufacturer specifications and report defects, as required, in accordance with organisational procedures

Performance evidence

  • applying relevant industry standards, and organisational policies and procedures
  • arranging for others to check equipment
  • conducting closed-circuit breathing apparatus (CCBA) (N2O2) open water dive operations in accordance with dive plan during the day and at night
  • conducting in-water apparatus checks
  • conducting unconscious companion diver drills in accordance with dive plan
  • maintaining equipment during dive operations
  • maintaining records according to organisational policies and procedures
  • monitoring CCBA (N2O2) equipment and gauges
  • operating an N2O2 compressor or hand-booster pump in accordance with manufacturer specifications

Knowledge evidence

  • CCBA (N2O2) characteristics and limitations
  • CCBA (N2O2) dive equipment specifications and limitations
  • dive physics
  • dive physiology and medicine, including:
  • heat and cold illnesses
  • compression illnesses
  • decompression illnesses
  • signs and symptoms of gas toxicity
  • diving descent and ascent techniques
  • general diving safety awareness, including:
  • diving in harbours
  • diving in tidal waters, currents and tides
  • lost/separated
  • entrapment/foul lines
  • marine animal threats
  • relevant industry standards
  • safe operating ranges for gas mixtures
  • CCBA (N2O2) equipment maintenance and servicing recording requirements
  • organisational policies and procedures

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Real, unedited Auditori output (RIIHAN201E shown), branded for a sample RTO:

Questions about assessing DEFWDV023

What does an assessment tool for DEFWDV023 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for DEFWDV023 needs to address all 36 unit components: 2 elements with 8 performance criteria, 9 performance evidence requirements, 19 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for DEFWDV023?

Auditori pulls the current release of DEFWDV023 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for DEFWDV023 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing DEFWDV023 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of DEFWDV023, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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