Question: Does the scuba diving have have a regulatory agency?
About the article "Scuba diving", section "Scuba diver training and certification".

Candidate passages:
Recreational scuba diving does not have a centralized certifying or regulatory agency, and is mostly self regulated.
There are, however, several large diving organizations that train and certify divers and dive instructors, and many diving related sales and rental outlets require proof of diver certification from one of these organizations prior to selling or renting certain diving products or services.
Underwater diver training is normally given by a qualified instructor who is a member of one of many diving training agencies or is registered with a government agency.
Basic diver training entails the learning of skills required for the safe conduct of activities in an underwater environment, and includes procedures and skills for the use of diving equipment, safety, emergency self-help and rescue procedures, dive planning, and use of dive tables.
Some of the skills which an entry level diver will normally learn include:
Preparing and dressing in the diving suit
Assembly and pre-dive testing of the scuba set.
Entries and exits
Breathing from the demand valve
Recovering and clearing the demand valve.
Clearing water from the mask.
Buoyancy control using weights and buoyancy compensator
Finning techniques, underwater mobility and maneuvering.
Making safe and controlled descents and ascents.
Equalisation of the ears and other air spaces.
Assisting another diver by providing air from one's own supply, or receiving air supplied by another diver.
How to return to the surface without injury in the event of a breathing supply interruption.
Use of bailout systems (professional divers).
Diving signals used to communicate underwater.
Professional divers will also learn other methods of communication.
Dive management skills such as monitoring depth and time and the breathing gas supply
Buddy diving procedures.
Some knowledge of physiology and the physics of diving is considered necessary by most diver certification agencies, as the diving environment is alien and relatively hostile to humans.
The physics and physiology knowledge required is fairly basic, and helps the diver to understand the effects of the diving environment so that informed acceptance of the associated risks is possible.
The physics mostly relates to gases under pressure, buoyancy, heat loss, and light underwater.
The physiology relates the physics to the effects on the human body, to provide a basic understanding of the causes and risks of barotrauma, decompression sickness, gas toxicity, hypothermia, drowning and sensory variations.
More advanced training often involves first aid and rescue skills, skills related to specialized diving equipment, and underwater work skills.
SCUBA Diving International, launched in 1999, is the sister organization of Technical Diving International.
Thus, SDI was created by dive professionals from the technical diving field.
This gives the organization a perspective that other recreational diving certification agencies do not have, which is teaching recreational diving through the lens of experienced technical diving.SDI’s philosophy is to take recreational scuba diving to new levels, enhancing older – maybe even outdated - diving practices by incorporating new diving technology and emphasizing safety.
The curriculum is set up to take divers from the beginner level to instructor level and structures its courses around a logged dive and specialty course approach.SDI is the only diver training agency that requires students to have access to a modern dive computer on all dives during training from the very start.SDI is also unusual amongst recreational diver training organisations in that it recognises solo diving as part of recreational diving, and offers a special training course relating to it.
Most major recreational diver training organisations mandate diving with a "buddy" at all times.
SDI was the first recreational diver training agency to provide certification as Solo Diver. 
The National Academy of Scuba Educators, also known as NASE Worldwide, is a recreational scuba training organization.
In February 2011 NASE re-launched its image and developed new standards and practices.
NASE's covers recreational scuba diving, technical and cave diving.
The agency was created in Texas in 1982. 
Master Scuba Diver (MSD) is a scuba diving certification or recognition level offered by several North American diver training agencies, such as the National Association of Underwater Instructors (NAUI), the Professional Association of Diving Instructors (PADI), Scuba Diving International (SDI), and Scuba Schools International (SSI).
Other agencies (e.g., The International Association of Nitrox and Technical Divers) offer similar programs under other names, such as "Elite Diver".
Each of these (and other) agencies touts their program at this level as the penultimate, non-leadership program.
Most organizations have a minimum age requirement of 15 to undertake the Master Scuba Diver course, although some organizations do permit certification of "Junior" Master Scuba Divers. 
Prahlad Kakar is married to Mitali Dutt Kakar, the owner of the film companies Offspring and Offshoot.
They have three sons Arnav, Varun and Anhjin.
Prahlad Kakkar is Dyslexic and so is his son Arnav.
Prahlad Kakar has a passion for scuba diving and in 2000 he became a CMAS 2 Star Scuba Diving Instructor.
His other interests include Gourmet cooking, Reading, Swimming, Snorkeling, Scuba Diving, Squash and Horse Riding.