British Sub-Aqua Club

The British Sub-Aqua Club or BSAC has been recognised since 1954 by UK Sport as the national governing body of recreational diving in the United Kingdom.

The club was founded in 1953 and at its peak in the mid-1990s had over 50,000 members declining to over 30,000 in 2009. It is a diver training organization that operates through its associated network of around 1,100 local, independent diving clubs and around 400 diving schools worldwide. The old logo featured the Roman god Neptune (Greek god Poseidon), god of the sea. The new logo, as of 2017, features a diver with the updated BSAC motto "Dive with us".

BSAC is unusual for a diver training agency in that most BSAC instructors are volunteers, giving up their spare time to train others, unlike many other agencies, in which instructors are paid employees, or self-employed.

Given that UK waters are relatively cold and have restricted visibility, BSAC training is regarded by its members as more comprehensive than some. Specifically it places emphasis on rescue training very early in the programme. BSAC also maintains links with other organisations, such as NACSAC.

Science writer and science fiction author Arthur C. Clarke was a famous member of BSAC.

The current President of BSAC is the Prince of Wales. His father Charles, and grandfather Philip also held that position and his brother Harry also trained with BSAC.

Timeline

 * 1953, 15 October : BSAC was founded by Oscar Gugen, Peter Small, Mary Small, and Trevor Hampton.
 * 1953: Jack Atkinson, an aero engineer, was appointed as the club's first national diving officer.
 * 1954: First BSAC branch formed, in London.
 * 1954: Members of Southsea Sub-Aqua Club (BSAC Branch No.9), invent underwater hockey (originally called "Octopush").
 * 1955, March: BSAC is accepted by the Central Council of Physical Recreation.
 * 1957, January: BSAC and 14 other national diving federations create Confédération Mondiale des Activités Subaquatiques (CMAS), the world governing body for sub-aqua.
 * 1959, January: Jack Atkinson, produced the BSAC Diving Manual.
 * 1988: Release of the BS-AC 88 dive table
 * 1990: BSAC moved its offices to Ellesmere Port, North West England.
 * 1995: BSAC allows Nitrox diving and introduced Nitrox training.
 * 1997, 20 May: BSAC was expelled from the Confédération Mondiale des Activités Subaquatiques (CMAS)
 * 2002: The introduction of a new Diver Training Scheme (2002 to 2023).
 * 2007: BSAC is the first recreational diving agency to introduce Nitrox diving as part of core training.
 * 2023: Revision of the 2002 training scheme with a complete overhall of the Dive Leader course.

Recognition
BSAC is recognised by the successors of the Sports Council as the National Governing Body (NGB) for Sub Aqua within the United Kingdom. It has held this status since 1954. 'Sub Aqua' (or Sub Aquatics) is a broad term that includes both recreational underwater activities such as recreational diving and snorkelling, and competitive underwater activities including underwater sports such as Octopush. It is also recognised by Sport England as the NGB for Sub Aqua in England.

BSAC is one of three NGBs representing 'Sub Aqua' in the constituent countries of the United Kingdom. The others are the Northern Ireland Federation of Sub-Aqua Clubs (Northern Ireland) and the Scottish Sub Aqua Club (Scotland) with the British Sub Aqua Club being the NGB for the United Kingdom as a whole; a role it has held since 1954. Wales has been represented by the British Sub Aqua Club since January 2016 when it replaced the Welsh Association of Sub Aqua Clubs.

Diving Qualifications
BSAC currently has seven diver qualifications (five standard and two intermediary):
 * : Basic skills, supervised diving (depth limit 12 m). 
 * : Basic skills, non-decompression diving (depth limit 20 m).
 * : Further Basic skills training, navigation, nitrox (up to Nitrox 36%), non-decompression diving (depth limit increased to 30 m with a series of 5 m progression dives).''
 * : Rescue, navigation, nitrox and decompression diving (depth limit increased to 40 m with a series of 5 m progression dives).
 * : Dive leading, dive planning and management, and rescue management (depth limit increased to 50 m by completing a selection of experience dives).
 * : Fully trained diver capable of leading a group of divers in normal club activities.
 * : Trained to lead a group of divers carrying out a project. This is nationally examined with a two-day practical test.

Instructor Qualifications
BSAC has eight instructor grades:
 * : Trained but unqualified. Must be supervised when instructing.
 * : Qualified to instruct unsupervised in the classroom.
 * : Qualified to teach open water under supervision.
 * : Qualified to instruct unsupervised in open water.
 * : Qualified to supervise other instructors in classroom and open water training.
 * : Trained to teach advanced skills, such as boat based skills and group diving techniques.
 * : Qualified to staff Instructor events.
 * : Leads Instructor Training courses and BSAC National exams.

Grades no longer awarded
The following grades which are no longer awarded may still be encountered: The distinction between Novice I and Novice II was mostly for practical reasons to do with the difference between hiring a pool and travelling to the coast. A Novice I diver would normally complete the two open-water dives as soon as possible, but if this were not possible straight away (perhaps over winter) they would at least have a specific grade within the club. The lengthy and club-oriented Novice syllabus was replaced with the Club Diver and Ocean Diver syllabuses in the late 1990s. (However, some argue the Novice description was usefully accurate and aided diver safety because nobody with such a qualification would attempt dives beyond their capabilities).
 * : A diver who has completed the extensive sheltered-water (i.e. pool) training of the BSAC syllabus of the time, but has not yet dived in open water.
 * : A Novice I diver who has completed two open-water assessment dives.
 * : This is more or less the same as Ocean Diver; originally the two were operated in parallel with Ocean Diver awarded at schools and Club Diver at clubs.
 * : An instructor grade junior to Open Water Instructor, but allowing the holder to instruct practical and theory lessons without supervision.
 * : This was the entry-level grade prior to the splitting of its syllabus during the mid-1980s to create the Novice and Sports Diver grades. Divers who held this grade at the time were awarded the Sports Diver grade.
 * : This was the immediate grade prior to the splitting of its syllabus during the mid-1980s to create the Dive Leader and Advanced Diver grades. Divers who held this grade at the time were awarded the Advanced Diver grade.

CMAS equivalencies
The following CMAS equivalencies have been agreed with the Sub-Aqua Association.

EUF Certification
BSAC obtained CEN certification from the EUF certification body in 2007 and re-certified in 2012 and 2019 for the following recreational diver grades:
 * Discovery Diver – ISO 24801-1
 * Ocean Diver – EN 14153-2/ISO 24801-2 – 'Autonomous Diver'
 * Dive Leader – EN 14153-3/ISO 24801-3 – 'Dive Leader'
 * Open Water Instructor – EN 14413-2/ISO 24802-2 – 'Instructor Level 2'
 * Sports Diver – ISO 11107 – 'Nitrox diving'
 * Nitrox Gas Blender – ISO 13293 – 'Level 1 Gas Blender'
 * Mixed Gas Blender – ISO 13293 – 'Level 2 Gas Blender'
 * Snorkelling Guide – ISO 13970 – 'Snorkelling Guide'

Snorkelling Qualifications
BSAC has four snorkeller grades:
 * Dolphin Snorkeller: swimmingpool based course designed for children.
 * Snorkel Diver: training for pool or sheltered water activity.
 * Advanced Snorkeller: training for open water activity.
 * Snorkel Dive Manager: training to plan, organise and lead snorkelling activities.

Instructor Qualifications
BSAC three snorkel instructor grades:
 * Snorkel Instructor
 * Advanced Snorkel Instructor
 * Snorkel Instructor Trainer

BSAC scuba instructors can also teach all or parts of the Snorkeller Training Programme subject to meeting pre-requisites including additional training.

Skill Development Courses
BSAC offer range of specialist diving courses known as Skill Development Courses (SDCs). While mainly for scuba divers, a number of courses can taken as snorkeller, and some without any dive qualifications:

Courses in brackets indicate pre-requisites for the SDC

Club Diving:
 * Accelerated Decompression Procedures (Sports Diver, Nitrox Diver, Gold Standard Buoyancy)
 * Buoyancy and Trim Workshop (Ocean Diver, Minimum Standard Buoyancy)
 * Compressor Operation
 * Dive Planning and Management (Sports Diver)
 * Marine Life Appreciation
 * Mixed Gas Blender/Nitrox Gas Blender (Nitrox Diver)
 * Search and Recovery (Sports Diver)
 * Wreck Appreciation
 * Wreck Diver (Sports Diver)
 * Advanced Wreck Diver (Sports Diver, Wreck Diver)
 * Twin-set Diver (Sports Diver)
 * Primary Donate Workshop (Twin-set Diver)
 * Drysuit Training
 * Nitrox Diver

Safety and Rescue:
 * Oxygen Administration (Basic Life Support)
 * Practical Rescue Management (Sports Diver)
 * Automated External Defibrillator (Basic Life Support)
 * Lifesaver Award (Ocean Diver)
 * Advanced Lifesaver Award (Lifesaver Award)
 * First Aid for Divers (Ocean Diver)
 * Sea Survival (Ocean Diver)
 * Snorkel Lifesaver Award (Snorkel Diver)
 * Advanced Lifesaver Award (Lifesaver Award)

Seamanship:
 * Boat Handling
 * Chartwork and Position fixing
 * Diver Coxswain Assessment (Boat Handling)
 * Outboard engine and Boat Maintenance

Special Interest:
 * Underwater Photography (Sports Diver)
 * Ice Diving (Sports Diver)
 * Shore Surveyor
 * Beach Comber
 * Underwater Surveyor (Snorkel Diver)

Technical Diving Courses
BSAC offer a number of technical diving courses:

CCR Courses:
 * Poseidon Se7en CCR Diver (40m)
 * Divesoft Liberty CCR Diver (45m)
 * MOD 1 AP Vision CCR Diver (40/45m)
 * MOD 1 AP Mixed Gas Top-up (45m)
 * MOD 2 CCR Diver (60m)
 * Advanced Mixed Gas CCR Diver (80m)

Open-circuit mixed gas courses:
 * Sport Mixed Gas Diver (50m)
 * Explorer Mixed Gas Diver (60m)
 * Advanced Mixed Gas Diver (80m)