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Course Overview

The Restricted SSBA to 50m (Part 3 Restricted) is a progressive step from ADAS Part 2 or ADAS Part 2 Restricted. It significantly increases the diver’s ability to operate in deep air situations and includes the use of deck decompression chambers and surface decompression.

The theory component of the course is that of the ADAS SSBA  50m (Part 3) course less wet bells, offshore industry awareness, and hot water suit competencies. The course emphasises the safety and efficiency advantages of full-face masks, surface supply and underwater communications when performing work tasks.

Course Standards

The course meets the requirements of:

  • AS 2815.3 – Air Diving to 50m
  • Partial completion of Certificate IV in Hyperbaric Operations (Surface-supplied diving to 50m). National Qualification Code 11006NAT.

Note: If you study at an ADAS training establishment outside of Australia you may not be eligible for this Australian Qualifications Framework certificate. The ADAS licence, however, is issued at all ADAS training establishments.

  • All ADAS schools teach to the ADAS standard, this means that graduates of non-VET accredited schools may apply to ADAS for a VET qualification through a Recognition of Prior Learning (RPL) process. Contact ADAS for more information about this process.

Student Prerequisites

Before applicants commence ADAS Restricted SSBA to 50m, the ATE must ensure that they:

  • Hold a current ADAS certification for ADAS Part 2; OR ADAS Part 2R; OR have successfully completed all ADAS diver competency assessments for ADAS Part 2 or Part 2 Restricted course in the one month period prior to the commencement of Part 3 Restricted training
  • Are in possession of a valid certificate of medical fitness to dive (see AS/NZS 2299.1) issued, after examination, by a doctor trained and experienced in underwater medicine in accordance with the requirements in AS/NZS 2299.1, and that certification remains valid until the scheduled completion date of the training being undertaken. The certificate is to have been issued within 90 days of the commencement of the training. If the trainee‘s health has changed significantly since the medical certificate was issued, the trainee shall seek an appropriate medical review;
  • Hold either a recognised current Diver Medic Technician certificate or a current First Aid certificate from an accredited training organization (i.e. has been certified within 3 years of the conclusion of the proposed training program) and CPR and oxygen resuscitation skills must have been refreshed within the 12 month period prior to the conclusion of the training program. The student’s First Aid qualifications must meet the competency requirements of AS/NZS 2299.1 Occupational diving operations standard operational practice.
  • Unless Non-English Language (NEL) speaking course arrangements have been made with ADAS, can understand written and verbal communication in English, and can communicate effectively in English with other persons.
  • Is able to add, subtract, multiply and divide whole numbers, decimals and vulgar fractions; calculate percentages; and transpose and solve simple formulas, eg gas laws.


The following units of competency are completed:

  • NAT11006001 Work safely in hyperbaric operations
  • NAT11006002 Maintain effective working relationships within dive or hyperbaric operations team
  • NAT11006003 Apply knowledge of anatomy, physiology and diving physics to diving
  • NAT11006004 Assess diving casualty and assist with first aid and treatment of diving illnesses and injuries
  • NAT11006028 Assist as an attendant inside a hyperbaric chamber
  • NAT11006038 Prepare, operate and maintain twin-lock compression chamber
  • NAT11006056 Undertake underwater deployment for a surface-supplied diving operation to 50m
  • NAT11006061 Ensure health and safety in occupational diving in compliance with legislation
  • NAT11006062 Work effectively in the occupational diving industry
  • NAT11006065 Apply knowledge of basic physics, anatomy, physiology and psychology to hyperbaric work
  • Elective: NAT11006058 Use enriched air nitrox in occupational diving operations

Delivery & Assessment

The Restricted SSBA to 50m (Part 3 Restricted) training course is a three (3) week training and assessment program. That is a minimum of fifteen (15) days over a nineteen (19) day period.

Commercial Dive Academy (CDA)

Inspection Head Wharf, 200 Flinders Street, BEAUTY POINT TAS 7270

Singapore Salvage Engineers Training Centre (SSETC)

No. 23 Shipyard Road Singapore

International Diving Academy (IDA)

Lot 3572 Jalan Panchur Kawasan Perindustrian Teluk Kalong Kemaman, 24000 Terengganu

NSW Police Diving Unit

Marine Area Command Complex, 4 Jubilee Place BALMAIN NSW 2041, Australia

South Australia Police

Water Operations, Unit 82 The Esplanade SEMAPHORE SA 5019, Australia

Victoria Police

Search and Rescue Squad, 100 Nelson Place, WILLIAMSTOWN VIC 3016

Oceanos Professional Diving School

C/Josep Pla sn - Sea Side Marine Platform of the Forum 08019 Barcelona

Omne Marine Training Centre (OMTC)

11 Piermark Drive Albany Auckland NZ

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