Unit of competency details

Release 

TP Version 

Comments 

2

DEF12 V2

Layout adjusted. No changes to content.

1

DEF12 V1

Primary release.

Elements describe the essential outcomes of a Unit of Competency.

Performance Criteria describe the required performance needed to demonstrate achievement of the element. Where bold italicised  text is used, further information is detailed in the Range Statement. Assessment of performance is to be consistent with the Evidence Guide.

ELEMENT 

PERFORMANCE CRITERIA 

1. Prepare and rig lazy shot and bail-out cylinder 

1.1 Lazy shot , cordage and bail-out cylinder are inspected and prepared.

1.2 Lazy shot, cordage and bail-out cylinder are deployed and set at required depth for the decompression stop.

1.3 Adjustment for subsequent decompression stops is consistent with the dive plan.

1.4 Lazy shot, cordage and bail-out cylinder are de -serviced  and stowed for re-use.

2. Attend to a SCUBA (air) diver from the surface 

2.1 Diver is assisted in fitting and inspecting dive equipment  prior to undertaking the dive.

2.2 Assistance is provided during the diver's entry  into, and exit from, the water from a range of platforms. 

2.3 Diver's equipment  is confirmed for fit and absence of leaks on entering the water.

2.4 Diver's safety line is managed throughout the dive and all line signals between the diver and supervisor are interpreted and responded to.

2.5 Diver's condition, position and progress are reported regularly and accurately to the supervisor.

2.6 Diver is controlled from the surface during a poor visibility search.

2.7 Diver is assisted in the removal and stowage of equipment.

This describes the essential skills and knowledge and their level, required for this unit.

Required Skills 

• assemble equipment
• interpret signals
• measure distance
• read gauges

Required Knowledge 

• dive equipment
• dive physics
• dive physiology and medicine
• general boat awareness and safety
• line signals
• marine animal threats
• marine hazards
• oceanography

Critical aspects for assessment and evidence required to demonstrate competency in this unit 

Assessment must confirm the ability to rig and set lazy shot and bail-out at appropriate depth/s; to maintain communications; and to maintain attention to the diver throughout the dives.

Consistency in performance 

Competency should be demonstrated over a variety of tasks including:

• transmitting at least two messages from the supervisor to the diver
• relaying at least two messages from the diver to the supervisor
• controlling a searching diver, at a minimum, in poor visibility (less than 2 metres) for 4 legs of 25 metres (e.g. parallel search).

Context of and specific resources for assessment 

Context of assessment 

Competency should be assessed in the ocean supported by questioning on shore or aboard vessels.

When practicable, assessment should relate to the diver’s vocational focus.

Specific resources for assessment 

Access to a complete range of diving, safety and accessory equipment; lazy shot and bail-out equipment; and a dive platform.

The Range Statement relates to the Unit of Competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised  wording in the Performance Criteria is detailed below.

Open water environment  includes:

• oceans, seas, lakes and rivers
• day or night
• subsurface conditions:

• current (0-2 knots)
• visibility (0 metre +)
• temperature (0 degrees +)
• surface and sub-surface hazards such as:

• anchor drop zones
• cathodic protection devices
• electrical cabling
• inlets and sonar/radio
• frequency hazards
• marine animals piers and jetties
• pipelines
• pollutants
• propellers/thrusters

• trapping hazards:

• beams
• culverts
• gates
• grottoes and caves
• intakes and out-falls
• nets
• safety, anchor and communications lines
• sewers
• submerged ships, vehicles and structures
• sluices

• vessel rocking and associated movement

Lazy shot variations  may include:

• lazy shot and fixed shot rope
• lazy shot and drifting stops
• lazy shot and float line
• lazy shot and life line

De-servicing  may include:

• applying protective substances
• cleaning
• drying
• inspecting
• refilling (gas)

Inspecting dive equipment  may include:

• anchorage of safety lines
• confirmation of necessary equipment
• function of apparatus:

• air
• buoyancy device

• general fit and form
• security of buckles and attachments

Entry  may include:

• dive
• forward/backward jump
• roll-back
• walk-in (backwards)

Platforms  may include:

• boats
• ships
• (semi) -permanent platforms

Equipment  may include:

• breathing system and devices:

• pressure:

• demand
• positive

• supply:

• independent primary

• cylinder configuration:

• single

• buoyancy devices:

• buoyancy compensator
• weight belt

• dive clothing:

• facemask
• fins gloves
• wet-suit (including booties and hood)

• diving accessory equipment:

• knife
• watch
• compass
• communications slate
• facemask/mouthpiece ensemble

• safety equipment:

• diver's safety lines