ADAS Occupational scuba to 30 M (Part 1)






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2023 ADAS Diving and Supervisor Course Dates are online!

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An Occupational Scuba to 30m Part 1 Certification is the first step in becoming a commercial diver. This course is conducted over a 4 week period, it consists of both theory and practical work, and utilises scuba with bailout cylinders, full face masks and communication equipment. Theory is focused on safety, physiology, basic physics, technical drawing, observational skills, emergency and medical training. This course is limited to environments where there is direct access to the surface.

The course includes 21 dives with tasks including full face mask orientation and emergency drills, standby diver rescue drills, underwater voice and lifeline communications, underwater searches, underwater surveys & photography, night dive, chamber dive, light construction/hand tool tasks and deep dives.

Successful completion of this course results in the following Vocational Education and Training (VET) qualification: Certificate IV in Hyperbaric Operations (Occupational SCUBA diving). National Qualification Code: 10133NAT awarded by ADAS, RTO number 88104

More information regarding unit standards, course competencies & prerequisites can be found on the ADAS website: Click Here

Student loans are also available for students who meet specific eligibility criteria. Please visit the following website to find out more information: Zeefi Student Loans

Completing this course will help you:

Who is the course for?

The scuba to 30 M Certificate is designed to give you a fundamental understanding of the basic skills and requirements that will be needed to become a commercial diver.

CDA’s Part 1 Certificate is the perfect starting point for those already on the pathway towards working in Police, Marine Archeology, Scientific Research, Media, and Engineering Inspection Diving.

For those wanting to work in construction, Aquaculture or salvage an ADAS Surface Supplied diving qualification will be required, our ADAS part Three or Two certificate is what you will be after.


 The Commercial Dive Academy, trains the majority of all certified occupational scuba divers across all of Australia. Due to the high demand of diver training in Melbourne, Sydney, Brisbane and the rest of the mainland we have now set up a permanent diving site for ADAS Part one diver training in Brisbane.

CDA affiliated diver training is currently found in:

Student Pre-Requisites

Divers must be at least 18 years of age at the commencement of training

Hold a recognised certificate of recreational diving competence (e.g. an open water sports diver qualification from a recognised SCUBA training organization, or a certificate as a military diver) and demonstrate logged evidence of at least 10 dives undertaken since receiving certification and within 6 months of commencing the ADAS training course

Before we can allow anyone to dive, they must hold an occupational dive medical. I am sure you have AS/NZS 2299.1 memorised now, and you guessed right. your medical, needs to be in accordance with this standard.
Because of this, the doctor who assesses you for medical fitness is required to be trained in hyperbaric medicine and certified as an occupational diving doctor.

you can find dive doctors using the SPUMS website below

You can learn more about the dive medicals by clicking here.

To meet the AS/NZS 2299.1 and ADAS requirements anyone who joins a course at CDA, or any other ADAS school is required to have a current first aid, 02 provider and CPR certification.
in general if the card has first aid on it, and the course was about a day long. it is likely this will be accepted. though if you are not sure if your first aid ticket is accepted, you can contact us any time to find out.

Click Here to learn more about required First aid and O2 training

Units of Competency

  • Work safely in hyperbaric operations
  • Maintain effective working relationships within dive or hyperbaric operations team
  • Calculate with whole numbers and familiar fractions, decimals and percentages for work
  • Contribute to health and safety of self and others
  • Apply knowledge of anatomy , physiology and diving physics to diving
  • Assess diving casualty and assist with treatment of diving conditions
  • Utilise and maintain SCUBA equipment
  • Undertake pre-dive preparations for a SCUBA diving operation
  • Undertake underwater deployment in a SCUBA diving operation
  • Implement emergency procedures for SCUBA
  • Undertake post-dive procedures for a SCUBA diving operation
  • Perform basic underwater tasks for a SCUBA diving operation
  • Perform underwater tasks for a diving operation
  • Ensure health and safety in occupational diving in compliance with legislation
  • Work effectively in the occupational diving industry
  • Elective: Complete a dive using Enriched Air Nitrox (EANx)
  • Elective: Use enriched air nitrox in occupational diving operations

Watch: bbc documentary on saturation diving

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