(ISO 24801-2, CMAS 1 Star Diver, RSTC Open Water Diver)
PTRD One Star Diver
- Aim of the training programme
1.1 This training programme aims at introducing the fundamentals of SCUBA diving to new entrants to the
sport of recreational SCUBA diving, which will enable them to undertake no-decompression stop
dives, whilst using air or Nitrox-32 as a breathing gas, to a maximum depth of twenty-five (30) meters in a safe manner.
2.1 The PTRD One Star Diver Training Programme is classified as an entry-level sport diver training
- Instructor and Assistant Requirements
3.1 The PTRD One Star Diver Training Programme may be presented by any PTRD Instructor with a
minimum of a PTRD One Star Instructor grading that complies with the requirements as prescribed
by Clause 2.1.20 of the definitions in Chapter 1.
3.2 The PTRD One Star Instructor may be assisted by a PTRD Dive Leader that complies with Clause
2.1.21 of the definitions in Chapter 1.
- Competencies of a certified PTRD One Star Diver
4.1 A PTRD One Star Diver shall be trained such that when assessed by a PTRD Instructor, he shall
be deemed to have sufficient knowledge, skill and experience to procure air, equipment, and other
diving services and to plan, conduct, and log open-water dives that do not require mandatory in water
decompression stops, without the supervision of a PTRD Instructor or PTRD Dive Leader,
when properly equipped and accompanied by another certified diver of at least the same level,
provided the diving activities undertaken, the diving conditions and the diving area are similar, equal
or better to those in which training was received.
4.2 A PTRD One Star Diver is qualified to dive within the following parameters:
4.2.1 To use air or Nitrox-32 as a breathing gas;
4.2.2 To make dives which do not require mandatory in-water decompression stops;
4.2.3 To make dives during normal daylight hours;
4.2.4 To dive in environments where direct vertical access to the surface is possible;
4.2.5 To dive only when appropriate support is available at the surface; and
4.2.6 To dive under conditions that are equal or better than the conditions in which he was
4.3 If he has received additional training he can dive to dive to a recommended maximum depth of
Twenty-five (30) meters with other SCUBA divers of the same level.
- Prerequisites for participation in the training programme
5.1 In order to gain access to the PTRD One Star Diver Training Programme, the participant shall:
5.1.1 Be at least fourteen (15) years of age; there is no upper limit. Parental or
legal guardian signature is required on the appropriate form(s) when the applicant is a minor.
5.1.2 Effectively demonstrate his basic watermanship ability by performing, to a PTRD
Instructor, the prescribed physical conditioning and watermanship evaluation of the
PTRD Country Partner or CDC;
5.1.3 Complete the medical history/statement form required by the PTRD Country Partner or CDC
prior to participating in any in-water activities.
Documented evidence shall be obtained that the student has been medically screened as suitable for recreational diving by means of an appropriate questionnaire or medical examination. In any case of doubt, or at the scuba instructor’s discretion, students shall be referred to proper medical resources. If the student is not examined by a physician the student shall be obliged to confirm by signature that he or she has understood written information given by the scuba instructor on diseases and physical conditions which may pose diving related risks.
Students shall be advised of the importance of appropriate regular medical examinations.
NOTE In some countries and training organizations a medical examination is mandatory.
5.1.4 Sign the appropriate form(s) as required by the PTRD Country Partner or CDC acknowledging and
assuming the risks of SCUBA diving prior to participating in any in-water activities:
5.2 The following information shall be made available to the students prior to, or during the first class
5.2.1 Information prior to provision of the service
The service provider shall provide the following information to the client.
contractual issues including conditions bearing on the signature, delivery and termination of the contract,
prerequisites and any qualification requirements in order to obtain the service (e.g. medical certification, diver certifications),
insurance requirements in accordance with national regulations,
local environmental considerations,
diving related legislation and legal requirements concerned with the specific kind of service.
If the service provided involves training the following additional information shall be provided:
limitations of eventual qualification,
scope of the training course,
means and methods for assessment, criteria for successful completion,
that records will be kept of their personal data and these records may be passed on to a training organization.
In the case of guided dives or organized dives the following additional information shall be provided:
information concerning the dive site, in particular hazards which could affect the safety of the dive (e.g. under-water obstructions),
arrangements concerning buddy teams and/or group size,
depth and/or time limitations.
5.2.2 Information during service provision
Prior to each dive or training session, clients shall have safety provisions identified to them, including:
the identity and role of staff,
the conduct required of clients.
5.3 Risk Assessment
The service provider shall ensure that a risk assessment is conducted before each dive, and shall adopt
procedures to ensure that all risks are controlled as far as is reasonably possible. The following factors shall be considered as part of this assessment taking into account the capability of participants:
water movement (e.g. current, wave action)
suitability of the site for planned activities,
emergency action plan.
The service provider shall have the right to prevent any client from taking part in the activity if following a risk
assessment this is deemed to be in the best interest of the client and/or of other clients.
5.4 Emergency equipment and procedures
5.4.1 Emergency equipment
For all locations where diving activities take place the service provider shall ensure the availability of:
a first aid kit suitable for the planned diving activities,
an emergency oxygen unit with a capacity of delivering at least 15 liters/min. of pure oxygen for at least
a communication system suitable for alerting emergency services.
5.4.2 Emergency procedures
At each dive site where diving activities take place a documented emergency plan comprising at least the following information shall be available:
procedures for casualty recovery, resuscitation and evacuation,
use of the emergency oxygen supply,
information about the nearest medical resources (including data about the availability of a hyperbaric
- Requirements for certification
6.1 In order to be certified as a PTRD One Star Diver, the student shall:
6.1.1 Comply with all the prerequisites for participation in the training programme as prescribed
by Clause 5 of this Standard;
6.1.2 Successfully complete the theoretical assessment as provided for in Clause 10.1 of this
6.1.3 Successfully complete the confined water assessment as provided for in Clause 10.2 of
this Standard; and
6.1.4 Having successfully completed four dives (5) in open water at a depth between 5 and 18 meters
and a minimum duration of fifteen (30) minutes, as defined in paragraph 10.3 of the present
6.1.5 The first dive in open water can be replaced by two (2) dives in a deep pool (5-18 meters) under
a monitor’s responsibility.
- Required theoretical knowledge and diving skills
7.1 The participant shall receive tuition in the theoretical knowledge and diving skills as prescribed in
Clause 3.5 in Chapter 3.
- Theoretical training parameters
8.1 The PTRD Instructor shall conform to the standard theoretical training parameters as prescribed by
Clause 4.5 of Chapter 1.
- Practical training parameters
9.1 The PTRD Instructor shall conform to the standard practical training parameters as prescribed by
Clause 4.6 of Chapter 1.
10.1.1 The student shall demonstrate to the PTRD Instructor knowledge of SCUBA diving by
taking and passing an oral or written examination. This examination shall test entry
level theoretical knowledge and knowledge of SCUBA skills as prescribed in Curriculum
in Chapter 3.
10.2 Confined water SCUBA skills
PTRD One Star Diver Training Programme
- Required theoretical knowledge
1.1 Subject Area 1: Introduction
1.1.1 The participant shall be provided with all such information, as provided for in Clause 4. 2 of
Chapter 1 in order to enable him to take an informed decision about his participation in the
PTRD One Star Diver Training Programme.
1.1.2 The participant shall be provided with the information about the PTRD as provided for in
Clause 4.3 of Chapter 1.
1.2 Subject Area 2: Equipment
1.2.1 The participant shall have an appropriate knowledge concerning the physical
characteristics operating principles, maintenance and use of the following items of
126.96.36.199 Basic Equipment
188.8.131.52.4 Exposure suits
184.108.40.206.5 Quick release weight systems
220.127.116.11.6 Knife/cutting devices
18.104.22.168 SCUBA equipment
22.214.171.124.2 Cylinder valves
126.96.36.199.4 Submersible pressure gauge (breathing gas monitor)
188.8.131.52.5 Alternative breathing gas source
184.108.40.206.6 Cylinder-support systems
220.127.116.11.7 Buoyancy control devices
18.104.22.168.8 Timing devices
22.214.171.124.9 Under-water navigational aids
126.96.36.199.10 Depth gauge/depth monitor
188.8.131.52.11 Dive tables
184.108.40.206.12 Dive computers
220.127.116.11 Ancillary equipment
18.104.22.168.1 Diving lights
22.214.171.124.2 Float and flag
126.96.36.199.3 Dive bags
188.8.131.52.4 Personal Diving Log Book
184.108.40.206 Emergency equipment
220.127.116.11.1 Emergency signalling device (acoustical, optical)
18.104.22.168.2 First-aid kit
22.214.171.124.3 Oxygen kit
1.3 Subject Area 3: Physics of diving
1.3.1 The participant shall have an appropriate knowledge concerning the physical
principles and their application to diving activities, equipment and hazards relating to:
126.96.36.199 Pressure/gas laws
1.4 Subject Area 4: Medical and psychological problems related to diving
1.4.1 Medical problems related to diving
188.8.131.52 The participant shall have an appropriate knowledge concerning the causes,
symptoms, prevention, first-aid and treatment of diving medical problems.
184.108.40.206.1 Direct Effects of Pressure
220.127.116.11.1.1 Descent phase
18.104.22.168.1.2 Ascent phase
22.214.171.124.1.2.1 Gas expansion (ears, sinuses, lungs, stomach, intestines, and teeth)
126.96.36.199.1.2.2 Lung over pressurization/overexpansion injuries including arterial gas embolism
188.8.131.52.1.3 Indirect Effects of Pressure (Physiological)
184.108.40.206.1.3.1 Decompression Illness (including on-gassing, off-gassing, forms of DCI and post-dive
220.127.116.11.1.3.2 Nitrogen narcosis
18.104.22.168.1.3.3 Hypercapnia (carbon dioxide excess)
22.214.171.124.1.3.4 Oxygen toxicity (discussion of first aid and treatment not required)
126.96.36.199.1.3.5 Hyperventilation/shallow-water blackout
188.8.131.52.1.3.6 Contaminated breathing gas supply
184.108.40.206.1.4 Other Hazards
220.127.116.11.1.5 First aid after diving incidents
18.104.22.168.1.5.1 Basic Cardio-pulmonary resuscitation (CPR)
22.214.171.124.1.5.2 Basic normobaric oxygen first aid
1.4.2 Psychological problems related to diving
126.96.36.199 The participant shall have an appropriate knowledge concerning causes, symptoms,
prevention and management of:
188.8.131.52.1 Mental stress
1.5 Subject Area 5: Use of dive tables (decompression tables) and dive computers
1.5.1 The participant shall have an appropriate knowledge concerning the use of dive tables and
dive computers including:
184.108.40.206 How to determine dive profiles which do not require in-water decompression stops
for single and repetitive dives.
220.127.116.11 How to determine required stage decompression (even though exceeding the nodecompression
limit is beyond the qualification of a PTRD One Star Diver).
18.104.22.168 How to use dive tables and/or dive computers to properly plan and execute a dive
22.214.171.124 Flying after diving.
1.6 Subject Area 6: Dive planning
1.6.1 The participant shall have appropriate knowledge concerning the following dive planning
126.96.36.199 Planning and preparation, with emphasis on the prevention of out-of breathing-
gas situations and emergencies
188.8.131.52 Communications, both under-water and on the surface
184.108.40.206 Emergency procedures
220.127.116.11 Accident management/prevention
18.104.22.168 Diver assistance (self/buddy)
22.214.171.124 Recommended safe diving practices (e.g. separation procedures, safety stops etc.)
126.96.36.199 Procedures for diving from boats
188.8.131.52 Proper use of Personal Diving Log Book
1.7 Subject Area 7: Dive environment
1.7.1 The participant shall have appropriate knowledge concerning the local and general
conditions of the diving environment and their possible effects on the SCUBA diver
and the SCUBA divers’ impact on the environment.
184.108.40.206.3 Movement (surface action, currents, tides, and the like)
220.127.116.11.4 Density (fresh and salt water)
18.104.22.168 Aquatic life
22.214.171.124.3 Harm divers can cause to animal and plant life
126.96.36.199 Environmental awareness
188.8.131.52 Weather conditions
184.108.40.206 Orientation to new diving environments
220.127.116.11.1 Surface hazards
18.104.22.168.2 Overhead environments
1.8 Subject Area 8: Career development
1.8.1 The participant shall be provided with the career development information as provided for in
Clause 4.4 of Chapter 1.
- Required SCUBA skills
2.1 Confined water skills
2.1.1 The participant shall be able to demonstrate the following skills in a comfortable and
relaxed manner; each skill shall be mastered in confined water before that skill is
performed in open water:
22.214.171.124 Use of mask, snorkel and fins
126.96.36.199 Diving system assembly and disassembly (at water’s edge)
188.8.131.52 Pre-dive equipment inspection and in and out of water buddy check
184.108.40.206 Entries and exits
220.127.116.11 Proper weighting and trim
18.104.22.168 Mouthpiece clearing – snorkel and regulator
22.214.171.124 Regulator/snorkel exchanges at the surface
126.96.36.199 Proper descent and ascent procedures (e.g. equalising pressure in ears and mask)
188.8.131.52 Swim under-water efficiently with appropriate buoyancy and attitude
184.108.40.206 Mask-clearing, including removal and replacement
220.127.116.11 Controlled breathing underwater without a mask
18.104.22.168 Buddy-system techniques (e.g. appropriate hand signals, staying close, monitoring buddy)
22.214.171.124 Underwater and surface buoyancy control
126.96.36.199 Underwater problem-solving (e.g. regulator recovery/retrieval, etc)
188.8.131.52 Monitoring instruments
184.108.40.206 Surface-snorkel swimming with full diving equipment. (The student shall be able to swim a
distance of at least 50 m)
220.127.116.11 Surface operation of the quick release/emergency function of the weight ballast system
18.104.22.168 Underwater removal and replacement of SCUBA system
22.214.171.124 Underwater removal and replacement of the weight/ballast system
126.96.36.199 Out-of-air emergency procedures allowing a SCUBA diver to ascend to the surface in the
event of an out-of-breathing gas situation, acting as both receiver and donor. This shall
include both dependent and independent procedures
188.8.131.52 Diver assistance techniques (self/buddy) (i.e. to assist a buddy to the surface and
provide support on the surface)
184.108.40.206 Equipment care and maintenance (at water’s edge)
2.2 Open water skills
2.2.1 The participant shall be able to demonstrate the following skills in a comfortable and
relaxed manner. Participants shall demonstrate mastery of each skill using
appropriate equipment and techniques for the local environment. They shall be
capable of performing each skill in conditions typical of the local environment. Skills
involving swimming shall be conducted over distances appropriate to local conditions
and diving techniques:
220.127.116.11 Use of mask, snorkel and fins
18.104.22.168 Diving system assembly and disassembly (at water’s edge)
22.214.171.124 Pre-dive equipment inspection and in and out of water buddy checks
126.96.36.199 Entries and exits
188.8.131.52 Proper weighting
184.108.40.206 Mouthpiece clearing – snorkel and regulator
220.127.116.11 Regulator/snorkel exchanges at the surface
18.104.22.168 Proper descent and ascent procedures (e.g. equalising pressure in ears and mask)
22.214.171.124 Swim under-water efficiently with appropriate buoyancy and attitude control
126.96.36.199 Mask-clearing, including removal and replacement
188.8.131.52 Controlled breathing underwater without a mask
184.108.40.206 Buddy-system techniques (e.g. appropriate hand signals, staying close, monitoring buddy)
220.127.116.11 Underwater and surface buoyancy control
18.104.22.168 Underwater problem-solving (e.g. regulator recovery/retrieval, etc)
22.214.171.124 Monitoring instruments
126.96.36.199 Surface-snorkel swimming with full diving system. (The student shall be able to swim back
to the point of safe exit but no less than 50 m)
188.8.131.52 Surface removal and replacement of SCUBA system
184.108.40.206 Underwater removal and replacement of the weight/ballast system
220.127.116.11 Out-of-air emergency procedures allowing a SCUBA diver to ascend to the surface in the
event of an out-of-breathing gas situation, acting as both receiver and donor. This shall
include both dependent and independent procedures.
18.104.22.168 Diver assistance techniques (self/buddy) (i.e. to assist a buddy to the surface
and provide support on the surface)
22.214.171.124 Simple under-water navigation
126.96.36.199 Equipment care and maintenance (at water’s edge)
3 Practical training parameters
3.1 An open water dive shall comprise at least the following activities:
– preparation to dive,
– pre-dive checks,
– entry into water,
– descent procedures,
– under-water activity,
– ascent and surfacing procedures,
– exit from water,
– post dive procedures,
– recording the dive.
3.2 All under-water skills in confined water shall be taught, directly supervised and evaluated by a scuba
instructor, who shall be in the water during each session. The scuba instructor shall be in direct control of students throughout all sessions.
3.3 Prior to the first open water dive the student shall effectively show proof of, or demonstrate, to a scuba
instructor the following skills, without the use of mask, fins, snorkel, or other swimming aids:
– 50 m distance swimming,
– 10 minute survival swim/float.
3.4 Before participating in open water dives a student shall have demonstrated sufficient theoretical knowledge and scuba skills in confined water to be able to perform the open water dives in the prevailing conditions.
3.5 No more than 3 open water dives shall be conducted on a given day.
3.6 All open water dives shall be conducted in water that allows direct vertical access to the surface. Open water dives therefore shall not be conducted in under-water caves, inside wrecks or below ice.
3.7 During open water dives the student shall at least be equipped with diving equipment according to 1.2 of this chapter.
3.8 All under water skills in open water shall be taught, directly supervised and evaluated by a 2 Star Master Instructor. The scuba instructor shall be in the water and in charge of each open water dive.
The safe supervision of students is solely the scuba instructor’s responsibility. The scuba instructor shall limit the number of students per scuba instructor where environmental conditions are less than ideal, for example where underwater visibility is poor or there is significant water movement. The scuba instructor may also use additional aids to improve safety such as ascent lines, surface support stations or safety scuba divers. Where safety scuba divers are used they shall have an appropriate level of rescue competency of at least level 3 Star Diver.
3.9 The scuba instructor shall limit the number of students on open water dives so that either the scuba
instructor or a safety diver is able to establish physical contact with every student at any time during the open water dive.
3.10 The scuba instructor shall cancel or abort the open water dive if environmental conditions, equipment
problems or a student’s physical or mental condition make this necessary.
The student shall demonstrate to a scuba instructor knowledge of scuba diving by taking and passing an oral or written examination as prescribed by PTRD. This examination shall test 1 Star Diver theoretical knowledge according to clause 1 and knowledge of scuba skills according to clause 2.
10.2 Scuba Skills
The student shall satisfactorily demonstrate to a scuba instructor, the scuba skills according to clause 2.
Students to be certified shall complete at least five qualifying open water dives according to 3.1 under the direct supervision of a scuba instructor.
The underwater duratio