Diving work

Diving work is risky, and can lead to severe injury or death.

Diving work is involved in a range of professions including construction work, maintenance work, scientific diving, photography, aquaculture and dive instruction / tourism.

Injuries and fatalities from diving occur because of faulty equipment, poor crew training or diver error.

The hazards

The underwater environment presents a vast range of risks including attack by marine life, drowning, entanglement or impact by marine vessels and the underwater environment.

Safety issues that are minor on dry land can become extremely risky in the underwater environment.

Diving work can be broken down into two major categories. These are General Diving Work and High-Risk Diving Work.

The harms

There are many harms associated with general diving that need to be considered and assessed before carrying out diving work.

Being physically unfit or unprepared to dive

Decompression illness, hypothermia, nitrogen narcosis or oxygen toxicity can be caused by intoxication from alcohol, prescribed or non-prescribed drugs, other intoxicants or factors such as lack of sleep, cold or heat stress, dehydration, exhaustion or altitude exposure. The safe blood alcohol concentration is 0.00%.

Surface conditions

The PCBU (the business) must consider the surface conditions at the dive site, including the state of the water (rough seas, unusual tides or currents), weather, visibility, tide, currents, air and water temperature, other vessels or watercraft and any other local conditions to ensure worker’s safety.

In-water conditions

The PCBU must consider the visibility, any contaminants, obstructions, dangerous marine life, thermoclines (rapid temperature changes with depth), pressure differentials and currents in the water.

Must Do’s

There are legislative requirements that need to be applied when conducting all types of diving work.

Get a doctor’s tick of approval

Your workers must hold a current certificate of medical fitness (valid for 12 months) to be able to do diving work, which you can get from a doctor who has been trained in underwater medicine.

Ensure diver reports illness or injury to the dive supervisor

If the diver has any injuries or illness or is feeling unwell, they should immediately report these to the dive supervisor to assess whether the diver is fit to dive and complete the work.

Ensure diver is trained properly

It is your job to make sure your workers are properly trained for diving work. As well as a medical certificate, workers must hold a certificate for general diving work; that includes the competencies specified in AS/NZS 2815:2013 (Training and certification of occupational divers) series relevant to the type of general diving work being conducted.

Additionally, your workers must be skilled (through training, qualification and experience) in:

understanding diving physics
using, inspecting and maintaining diving equipment
using decompression tables/dive computers
planning dives
communicating with other divers, and people on the surface while diving
carrying out the proposed type of general diving work
diving physiology, emergency procedures and first aid.

Updated training requirements for workers carrying out general diving work certified under AS 4005.2-2000

As of 17 July 2020, workers carrying out general diving work who currently hold AS 4005.2-2000 recreational dive supervisor qualification must complete three additional units of competency:

BSBWHS201 – Contribute to health and safety of self and others
ADAHYP401A – Work safely in hyperbaric operations
ADADIV405A - Work safely as a member of a dive team undertaking diving operations under controlled conditions.

Courses can be found at Training.gov.au or contact your local training organisation.

If you don’t complete the course before 31 Dec 2022, you will no longer be able to legally do general diving work until you have completed the course, or a high-risk diving course.

Read the exemption to the Regulation

Read Information about the changes to general dive work qualification requirements

Provide appropriate PPE

In contaminated environments, divers need to be provided with appropriate protective equipment to protect them against chemical, biological, nuclear or other hazardous waste. The appropriate PPE needs to be provided to the rest of the dive team also e.g. members remaining on the vessel. Decontamination procedures for all persons and equipment should be included in the dive plan.

Manage the risks

All activities have an element of risk. You must manage the risks associated with diving work.

Assess the risks

There must be a written risk assessment conducted by a competent person.

Supervise the dive

You must appoint at least 1 competent person to supervise the diving work and other functions at all times.

Have a dive plan

The person supervising the dive needs to prepare a dive plan before the work takes place and give workers instructions about it. The dive plan must be followed and must contain the following:

the method of conducting the diving work
the tasks and duties of each person who is diving
the diving equipment being used
the breathing gases required
the dive procedures
the dive times, bottom times and decompression profiles
any hazards relating to the dive and the steps taken to control the risks
emergency procedures.

Maintain a dive safety log

A dive safety log must be kept for each dive a worker conducts, and each must include:

the name of the worker who is diving
the name/s of anyone else who is diving (whether or not they are employed by you)
the name of the supervisor
the date and location of the dive
the time each diver enters and leaves the water
the maximum depth of the dive
any incident, difficulty, discomfort or injury that occurs during the dive
the dive time if using a dive computer
the repetitive dive group and the bottom time/dive time if using a dive table
if you get a repetitive factor, include this and the surface interval
if you use EANx or mixed gas, you must also supply:
- the oxygen and/or nitrogen content
- the maximum operating depth
- the minimum operating depth of the bottom mix (for mixed gas only)
the return of each diver, as soon as practicable after the dive
the diver’s and the supervisor’s signature (or unique identifier if the log is electronic) to record everyone’s safe return
the names of people on the vessel, both before and after the dive (if you are diving from a boat).

Keep records

After a dive takes place, there are certain records you must keep for legal reasons. These records must be kept for the minimum following duration:

Certificate of medical fitness – 1 year after the work is conducted
Evidence of competencies – 1 year after the work is conducted
Written risk assessment – 28 days after the work is completed
Dive plan -for the duration of the work, or for two years if a notifiable incident occurs
Dive safety log – 1 year after the last entry

All these records must be made available to us and any worker upon request.

Other types of diving work

Incidental diving work

Work that is incidental to the conduct of a business e.g. an actor working on an underwater film and involves limited diving work. It can only be carried out if accompanied by a person holding a certificate for general diving work or high-risk diving work.

Limited scientific diving work

Work done for professional scientific research, natural resource management or scientific research for education purposes and involves limited diving.

Both incidental diving or limited scientific diving workers, need to have completed a certain number of hours of relevant diving experience.

Limited diving

Limits you to diving for less than 28 days in a 6-month period and for no more than 30 metres deep and you cannot:

need a decompression stop
use mechanical or buoyancy lifting equipment
dive under things where you need to move sideways before ascending
use tools or plant powered from the surface

High Risk Diving Work

High Risk Diving Work is defined in the WHS Regulations 2017 as work carried out in or under water while breathing compressed gas that involves one or more of the following:

construction work meaning: construction, alteration, conversion, fitting-out, commissioning, renovation, repair, maintenance, refurbishment, demolition, decommissioning or dismantling of a structure. This includes:
- installation or testing
- removing any demolition product or waste
- the prefabrication or testing of elements
- assembling or disassembling prefabricated elements that form a structure
- installing, testing or maintaining of essential services of a structure
- any work connected with an excavation
- any preparatory work or site preparation for construction work
- work on, under or near water, including work on buoys and obstructions to navigation
inspection work carried out to determine if the above is necessary i.e. inspecting a component to determine if maintenance is required
testing, maintenance or repair work of a minor nature carried out in connection with a structure e.g. conducting non-destructive testing on a bridge pylon
recovery or salvage of items of plant or structures for commercial purposes e.g. salvage of a vessel.

As a PCBU, you must ensure all high risk diving work is done in accordance with AS/NZS 2299.1: 2015 Occupational diving operations – Standard operational practice, including:

the fitness of the diver
the competence of the diver
the conduct of the work

As a worker, you must not do high risk diving work unless you have, the qualifications, knowledge, skills and experience required by AS/NZS 2299.1: 2015 Occupational diving operations – Standard operational practice for the type of work to be conducted.