Elements and Performance Criteria

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 may include:
day or night
oceans, seas, lakes and rivers
subsurface conditions:
current (0-2 knots)
visibility (0 metre +)
temperature (0 degrees +)
surface and subsurface 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 outfalls
nets
safety, anchor and communications lines
sewers
submerged ships, vehicles and structures
sluices
vessel rocking and associated movement
Associated equipment includes:
gauges
main and reserve air supplies
umbilicals
Operator level maintenance includes:
basic deservice
communications checks
depth monitoring
line pressure settings
primary and secondary air supplies
SSBA includes:
bailout cylinder and assembly
facemask ensemble, either:
full mask
mouthpiece/halfmask
umbilical
Dive contingencies include:
air supply stoppage
buddy breathing
companion diver
flooded mask/helmet
fouled surface supply
umbilical blockage/choking
umbilical rupture

Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessment must confirm the ability to:
arrange for others to check equipment maintain equipment during the dive
conduct inwater checks
implement contingency and emergency drills including:
buddy breathing
ditching drills
unconscious companion diver drills
handle nonfunctional surface control panel items
handle nonfunctional equipment items
operate and maintain the surface control panel during the dive
prepare equipment for the dive
prepare the surface control panel for dive
recover and clear mask and mouthpiece
refurbish the surface control panel postdive
refurbish equipment postdive
safely enter and exit the water appropriate to the launch platform, equipment and conditions
switch from primary to the reserve air system
Consistency in performance
Competency will be demonstrated over a minimum of 25 (ADAS Pt 2) dives and through the operation of the surface supply panel on four separate occasions that includes the following requirements:
a range of surface and subsurface hazards
current (0-2 knots)
day and night
oceans, seas, lakes and rivers
subsurface conditions:
temperature (0 degrees +)
visibility (0 metre +)
Table 1 (below) outlines the minimum dives required by this Unit of Competency. At the time of printing, this contributed towards the achievement of an ADAS Pt 2 licence, however divers seeking ADAS licensing need to confirm details with ADAS.
Table 1
Condition
No of Dives
Bottom time
Remarks
Between 030m
25
960
Represents total accrued - refer ADAS Pt 2 Unrestricted
Special Qualifiers
2830 m dive
1
15

Zero visibility
1
20
Depth: 29 m
Night (+30 mins sunset/sunrise)
1
20
Depth: 9 m
Other
6 x boat dives
6 x shore dives
6 x (sim) decom stops using lazy shot & stage

The tables below are not relevant to this Unit of Competency but at the time of printing, contributed towards the achievement of an ADAS Pt 3 licence (SSBA diving to 50 metres). Divers seeking Pt 3 licensing need to confirm details with ADAS.
Depth range
Type of dive
Min No of dives
Min time on bottom for dives - minutes
Objective
9 metres
Training
1/1
30 min
SurD O2 drill
15 - 21 m
Assessment
2/4
15 min

15 - 21 m
Assessment
2/6
25 min

28 - 30 m
Training
1/7
20 min
Work task/ SurD O2 drill
33 - 42 m
Training
1/8
20 min
Work task/inwater decompression
33 - 42 m
Training
1/9
20 min
Work task /SurD O2 drill
33 - 42 m
Assessment
1/10
20 min
Work task/ SurD O2 drill
42 - 50 m
Training
1/11
15min
Work task/ SurD O2 drill
42 - 50 m
Assessment
1/12
15min
Work task/ SurD O2 drill
42 - 50 m
Assessment
1/13
10 min
Work task/inwater decompression drill

Inwater decompression drills in the above table are to be conducted as follows:
1 dive in the 33 to 42 metre depth range, remaining at the selected depth from the table below for at least the time in column 2 and conducting in water decompression for a simulated bottom time of at least that in column 3.
1
2
3
Depth
Time at selected depth
Simulated inwater decompression for bottom time of:
metres
minutes
minutes
36
15
35
39
15
30
42
15
30

1 dive in the 42 to 50 metre depth range, remaining at the selected depth from the table below for at least the time in column 2 and conducting in water decompression for a simulated bottom time of at least that in column 3.
1
2
3
Depth (metres)
Time at selected depth (minutes)
Simulated inwater decompression for bottom time of: (minutes)



42
15
30
45
10
25
48
10
25
50
10
20

Context of and specific resources for assessment
Context of assessment
Competency will be assessed in the ocean for all practical assessments, 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 complete range of SSBA diving, safety and accessory equipment.