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, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
Condition of participants may include: | age cultural and situational factors previous experience and knowledge physical development diver's build, weight and lung capacity. |
Plan may include: | aims and objectives date, time and duration location, equipment and resources safety and emergency requirements. |
Relevant legislation may include: | occupational health and safety permits or permission for access working with children environmental regulations marine regulations. |
Organisational policies and procedures may include: | occupational health and safety: medically fit to dive to a maximum of 18 metres communication protocols assessment procedures time and budget constraints confidentiality of participant information code of ethics. |
Industry technical and safety criteria may include: | British Sub-Aqua Club (BSAC) Professional Association of Diving Instructors (PADI) SCUBA Schools International (SSI). |
Hazards may include: | temperature extremes rough conditions rocks and reefs boat traffic phobias darkness or poor visibility decompression water depth squeezes barotrauma panic aquatic animals and plants. |
Risks may include: | hypothermia heat exhaustion injuries exhaustion lost party or party member equipment failure near drowning getting separated from group barotrauma nitrogen narcosis contaminated SCUBA air cramps pressure or volume or density relationships buoyancy respiration air consumption direct and indirect effects of pressure nitrogen narcosis oxygen toxicity carbon monoxide toxicity stings or bites Decompression Illness (DCI): Ingassing or offgassing nitrogen residual nitrogen. |
Relevant sources may include: | Bureau of Meteorology media land managers or agencies coastal patrol or coastguard volunteer marine rescue local knowledge. |
Weather and environmental information may include: | satellite images daily and weekly forecasts maximum and minimum temperatures weather warnings event warnings river warnings synoptic charts high and low tide predictions. |
Food and water requirements may include: | menu planning and preparation range of foods. |
Principles of nutrition may include: | food groups dietary guidelines individual food requirements and allergies. |
Contextual issues may include: | weather conditions, including times season transport location trip distance and duration group objectives group size season and weather participant characteristics number of staff safety and rescue requirements dive duration depth and currents. |
Equipment may include: | fins mask snorkel wetsuit or drysuits buoyancy control device (BCD) with low pressure inflator compressed air cylinder and valve regulator and backpack alternate air source submersible pressure gauge timing device depth gauge no-decompression tables computer weight belt and weights diver's tools safety and rescue equipment specialist diving equipment communication equipment navigation equipment. |
Relevant information may include: | personal equipment requirements safety procedures buddy and communication systems responsible behaviour risk and hazard prevention and management. |
Communication system may include: | calls radio hand signals whistles head signals dive slate dive flags dive site maps visual or physical contact with buddy. |
SCUBA diving techniques may include: | entries to and exits from the water mask and regulator removal, recovery and replacement in water buddy system buoyancy control underwater navigation descending and ascending equalising pressure self and buddy rescues bearings or reciprocal bearings dive calculations. |
In-water supervision may include: | monitoring diver's air ensuring planned bottom times aren't exceeded ensuring divers don't get separated or run low on air. |
Variable factors may include: | change of weather equipment failure water conditions. |
Relevant aspects may include: | objectives planning process activity site weather equipment selection clothing selection food selection instructional content assessment technique group feedback directing techniques rescue techniques employed. |