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TheNederlandse Onderwatersport Bond, (NOB) is thenational governing body for recreational diving and underwater sports in theNetherlands. It was founded in 1962. In 2008 there were 290 scuba diving clubs and schools with a total of 20.000 members. The NOB is a member of CMASConfédération Mondiale des Activités Subaquatiques.^[3] The aim of the NOB is to develop recreational scuba diving in the Netherlands.

NOB supports competition at all levels for the followingunderwater sports:finswimming andunderwater hockey.^[4][5]

The NOB offers training with particular attention to the difficult dive conditions encountered in the Netherlands (currents, limited visibility, cold water).

• ScubaDoe - (Snorkeling & scubadiving, 8–14 years old)
• 1*-Junior Duiker - Junior Open Water Diver (min. 12 years old, autonomy at 10 meters)

• 1*-Duiker - Open Water Diver (min 14 years old, autonomy at 20 meters)
• 2*-Duiker - Advanced Open Water Diver (min 15 years old, autonomy at 30 meters)
• 3*-Duiker - Dive Master and Rescue Diver/Oxygen Provider (min 18 years old: assistant, dive leader, diving officer for fun dives autonomy at 50 meters)
• 4*-Duiker - Master Scuba Diver (3*-Duiker with 250 certified dives and 6 specialties)

Prerequisite: 1 star diver

• Underwater biology
• Nitrox basics (#)
• Digital photography
• Dry suit
• Rescue (pre-requisite for the 3 star diver. Same asRIFA Plongée ofFFESSM)

Prerequisite: 2 star diver

• Full-face mask (#)
• Underwater orientation
• Wreck diving (#)
• Drift diving
• Ice diving (#)
• Search and recovery

Prerequisite: 3 star diver

• Decompression (#)
• Advanced Nitrox (#)
• Cave-diving techniques (#)

(#) Those specialties are validated by 2* instructors (minimum) who followed an additional instructor course. Other specialties by any 2*-instructor (minimum) having self the specialty as a diver.

(##) Maximum 20 minutes decompression stops; maximal depth 50 meters.

• 1*-Instructeur - Assistant Instructor: certifies 1* divers (confined water), and assists 2* instructors
• 2*-Instructeur - Instructor: certifies 1*-4* divers and provides specialty courses (confined and open water).
• 3* -Instructeur - Master-Instructor or Regional instructor: trains instructors (1*-2*) under the supervision of aDocent.
• Instructeur-trainer - Instructor-trainer: trains instructors (1*-2*) under the supervision of aDocent.
• Docent - Instructor certifier or National instructor: trains and certifies any level of diver and instructor.

TheDocent and Master-Instructor are the two highest levels of instructors within the NOB^{[dubious –discuss]}. They lead commissions, speak on behalf of the NOB when required, etc. Given the stringent selection process, based upon application and approval from the board of directors, very few NOB instructors reach this level of certification.

The NOB obtainedCEN certification from theEUF certification body in 2008 for the following diver and instructor grades:

• 1*-Duiker -> EN-14153-2: Autonomous Diver
• 2*-Duiker -> EN-14153-2: Autonomous Diver
• 3*-Duiker -> EN-14153-3: Dive Leader
• 1*-Assistant Instructeur -> EN-14413-1: Scuba Instructor Level 1
• 2*-Instructeur -> EN-14413-2: Scuba Instructor Level 2^[6]

• NOB website
• Scubadoe
• NOB Finswimming homepage
• NOB Underwater Hockey homepage
• EUF certification webpage

• Finswimming
• Underwater sports organizations
• Underwater diving training organizations
• Underwater hockey governing bodies
• Sports governing bodies in the Netherlands
• Water sports in the Netherlands
• Organisations based in Utrecht (province)
• Veenendaal

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