A Divemaster (DM) is a diving qualification used throughout most of the world in recreational scuba diving for a diver who has overall responsibility for a group of divers. As well as being a generic term, Divemaster also refers to the first professional rating of many training agencies, such as PADI, SSI, SDI, NASE, except NAUI, which rates a NAUI Divemaster just under an Instructor but above an Assistant Instructor.

The BSAC recognizes several agencies' Divemaster certificates as equivalent to BSAC Dive Leader, but not to BSAC Advanced Diver.[1] The converse may not be true.

The certification is a pre-requisite for becoming an instructor in recreational diving with most agencies except NAUI, where it is an optional step to Instructor,[2] because of the different position of the NAUI Divemaster in the NAUI hierarchy.

The Divemaster level equals to the international Standard ISO 24801-3.[3]

The whole PADI training system.


The role of a Divemaster can be varied, but will generally include the following roles:

Responsibility and legal position

The legal duty of care of a divemaster to a client varies according to the legislation of the country, where it is often poorly defined. The use of waivers and/or assumption of risk forms that are intended to minimize legal accountability of divemasters is a common practice, but the validity of such waivers will vary with the legislation.

Equivalence in other modes of diving

Technical diving

In technical diving, divers are assumed to be competent and responsible for their own safety or the safety of the team of which they are members to the extent that is agreed by that team. However it is not unusual for a technical team or expedition group to appoint one of their number as a team leader or surface dive marshall, but the surface marshall is often more of an administrative position, who will check divers into and out of the water, and the dive team leader is more the navigator, or the person in front of the group than someone making safety decisions for other divers.

NAUI has a Technical Support Leader course that is designed to train NAUI Divemasters and Assistant Instructors who are also technical divers in this role.

Professional diving

Professional divers generally work in teams which have one or more divers in the water and a supervisor on the surface, with one or more assistants for handling lifelines, umbilicals, communications, gas panels and other support equipment, and a standby diver who is responsible for assisting or rescuing the in-water divers in an emergency. In these circumstances the supervisor has a high level of responsibility for the safety of the dive team and anyone else on site.

Employment opportunities and conditions

Divemasters, in theory, have the ability to work in holiday destinations in many parts of the world. They may work in diving resorts, private yachts, cruise ships and dive centres – anywhere where there is a demand for diving.

Many Divemasters also work in retail dive facilities and assist the instructor with training and supervision.


During Divemaster training, candidates learn dive leadership skills through classroom, independent study and practical training exercises. Some Divemaster programs require an internship program too. They complete water skills and stamina exercises, training exercises that improve their ability to organize and solve problems and help others to improve their abilities.

Candidates put this knowledge into action through a structured internship or a series of practical training exercises, including the candidate assisting in actual diving programs with real diving students.

Divemasters can develop to Divemaster level through two different methods. Either through progressing along the recreational levels of diving, or through Divemaster internships that fast-track the candidate to Divemaster level by having them become involved in the training facility where they are training. Divemaster internships are offered by many different dive shops under their respective organizations( PADI, NAUI, SSI, etc.)The internship program allows the Divemaster candidate to not only complete the minimum learning requirements, but to also "intern" and practice what has been learned.

Prerequisites for training

PADI and SDI Divemaster candidates must have reached the following minimum requirements prior to their Divemaster training:[4]

NASE requires Divemaster candidates to also have demonstrated competency in physics, physiology, skills and environment, dive planning and equipment prior to entering a program.

PADI Divemaster candidates must have completed 60 logged dives prior to certification as PADI Divemaster.


Divemaster is a NAUI leadership-level certification between Assistant Instructor and Instructor,[6] in contrast to agencies such as PADI that rate Divemaster as the lowest level of leadership qualification.[4] A NAUI Divemaster may organize and conduct dives for certified divers and is qualified to assist active-status NAUI Instructors on diver training courses.[6]

NAUI provides a core of leadership-level skills and knowledge in the NAUI Master Scuba Diver and NAUI Scuba Rescue Diver courses, which are necessary prerequisites for all NAUI leadership programs. Divemaster candidates who offer equivalent certification must still pass the NAUI Master Scuba Diver written examination. Divemaster candidates must either hold a NAUI Assistant Instructor qualification, or have a minimum of 60 logged open water dives demonstrating varied environment, depth and activities, as well as waterskills equal to those expected of an Assistant Instructor.[6]

Holding a NAUI Divemaster certificate is one of three ways in which the diver certification requirements for a NAUI Instructor Training Course may be met.[7]


  1. "Divers qualified with other agencies T.17". BSAC. 2012. Retrieved 2012-06-08.
  2. http://naui.org/leadership_courses_instructor.aspx
  3. "Competencies of a recreational scuba diver at level 3 "Dive Leader" (ISO 24801-3)". European Underwater Federation (EUF). Retrieved 27 February 2014.
  4. 1 2 3 4 5 6 PADI. "PADI DiveMaster Web Page". Retrieved 2012-02-05.
  5. This is a declaration that informs the participant that there is some risk involved in diving and states that the participant does not have any contra-indications for diving that are known to the physician."RSTC Medical statement" (PDF). Retrieved 2012-06-08.
  6. 1 2 3 "NAUI Leadership". Retrieved 2012-03-05.
  7. "NAUI Instructor Courses". Retrieved 2012-06-07.
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