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Course Overview

The SSBA to 50m (Part 3) certification is a progressive step from ADAS Part 2 and includes the use of surface-supplied breathing apparatus. The qualification significantly increases the diver‘s ability to operate under working situations including the use of wet bells, deck decompression chambers and other work related subjects to meet offshore diving industry requirements.

The objective of Part 3 training is to prepare Part 2 Divers to both safely and competently:

  • dive on SSBA to depths of 50m
  • use hydraulic tools at depths to 50m
  • conduct decompression dives using in water decompression and SurDO2
  • act as chamber operators
  • dive using hot water suits, and operate hot water generators
  • engage in diving operations using wet bells as a in-water standby diver and surface standby diver.

Course Standards

This course meets the standards of:

  • AS 2815.3 – Air Diving to 50 metres.
  • 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 SSBA to 50m (Part 3) training, the ATE must ensure that they:

  • Hold either a current ADAS Part 2 qualification or approved equivalent, have qualified at an ADAS Part 2 course in the previous one month or are currently engaged in an integrated Part 2 – 3 course.
  • 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. If the applicants’ health has changed significantly since the medical certificate was issued, the applicant 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:

  • BSBWHS211 Contribute to health and safety of self and others
  • 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
  • AT11006056 Undertake underwater deployment for a surface-supplied diving operation to 50m
  • NAT11006057 Participate in stage or wet bell diving operations
  • NAT11006060 Use hot water suit and hot water supply system in a diving operation
  • NAT11006061 Contribute to health and safety in diving operations in compliance with legislation
  • NAT11006062 Work effectively in the occupational diving industry
  • NAT11006074 Prepare to work safely in offshore diving operations
  • 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

Part 3 certification assumes and requires Part 2 certification or approved equivalent. The Part 3 SSBA course can be conducted separate to, or amalgamated with, Part 1 Occupational SCUBA to 30m and/or Part 2 Occupational SSBA to 30m.

The ADAS SSBA to 50m (Part 3) program comprises a minimum of four (4) weeks. That is a minimum of twenty course (20) days are to be programmed to meet the training, assessment and administration requirements of the course. It must be conducted according to the requirements outlined in this document.

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

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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