How to become a commercial diver in Europe

Becoming a commercial diver in Europe follows a clear route: pass a diving medical, complete recognised training in stages (from scuba up to surface-supplied diving), register under a recognised national scheme, and then build experience and add specialist tickets. In the Netherlands that scheme is run by NDC-RI with examinations by Hobéon-SKO — a route that is recognised for offshore work through IMCA and accepted in the United Kingdom via the HSE approved list.

Step 1 — Meet the entry requirements

Start with a diving medical that confirms you are fit to dive, carried out by a qualified diving physician. You will also need to meet minimum age and basic fitness/swimming requirements, and for some routes a basic scuba level to begin with.

Step 2 — Train in stages (scope levels)

Dutch commercial diving is built up in scope levels, from scuba at the entry end up to surface-supplied diving (SSE / B50). Training is blended — online theory combined with hands-on practice at a diving facility (for example a deep training basin, conditioned dive towers and a decompression chamber). Each level unlocks deeper or more complex work.

To give a concrete sense of scale: the entry-level A9 scope combines approximately 40 hours of online self-study with about two weeks of practical training in Enkhuizen, at a published price of €7,390 excluding VAT as of our August 2026 check. Higher scope levels such as B30 and B50 build on this with additional practical weeks; their current durations and fees are available from the school directly.

Step 3 — Get registered

Pass the Hobéon-SKO examinations for your level and register with NDC-RI. That registration — not the course certificate on its own — is your qualifying credential for professional diving work in the Netherlands.

Step 4 — Add recognition and tickets for where you want to work

Match your credentials to your target market. The Dutch scheme is recognised for offshore work through IMCA; the B50 qualification is on the UK HSE approved list (reviewed periodically); and there is a recognised crossover route towards ADAS in Australia. For specific jobs you then add an offshore medical, offshore survival (BOSIET/HUET), a Diver Medic Technician certificate, and welding qualifications where relevant.

As an example of scale: an IMCA-recognised Diver Medic Technician course runs approximately 60 hours of online self-study plus eight practical days including the examination.

Step 5 — Build experience

Most divers start inshore — civil, harbour and construction work — to log hours and prove reliability, then move offshore as they gain experience, progressing from air diving towards saturation work over time. Experience and a clean safety record are what open the better-paid roles.

Coming from the UK or Ireland?

The UK Health and Safety Executive (HSE) publishes a "List of Approved Diving Qualifications" that sets out which qualifications satisfy regulation 12(1)(a) of the Diving at Work Regulations 1997 — a diver may only dive on a project if they hold an approved qualification. Training to B50 in the Netherlands leads to a qualification named on that list: "NDC Registratie Instelling B50" is listed under Schedule 1 (offshore diving), with no listed expiry date.

One nuance worth knowing before you choose a scope: the related "NDC Registratie Instelling B50R" entry (SCUBA & Surface Supplied) is usable for Surface Supplied, Surface-Orientated Diving Techniques only to a maximum depth of 50 metres, and only if the diver also holds the HSE surface supplied (top-up) qualification — B50R on its own is not the same as B50.

Irish citizens training here are EU citizens and travel freely; British citizens can visit the Schengen area visa-free for short stays (up to 90 days in any 180-day period) — check the current entry rules before you travel. HSE approves the qualification, not a particular school — check the full detail, including the current HSE list and the other Diving at Work requirements your employer sets, on our dedicated page for UK and Irish divers.

Why train in Europe

Training in Europe means working within the recognised EN ISO / DNV framework, avoiding the large tuition debt associated with US schools, and — within the EU/EEA — training and working without a separate work visa. Courses can be followed in English, with English materials for international participants.

Frequently asked

How long does it take to become a commercial diver?

It depends on the scope level. As an indication, the entry-level A9 scope combines roughly 40 hours of online self-study with about two weeks of practical training; higher levels such as B50 take longer. Building the experience needed to work offshore takes considerably longer than the training itself.

Do I need to speak Dutch to train in the Netherlands?

No. Courses can be followed in English, with English course materials for international participants.

Can I work across Europe with a Dutch qualification?

The Dutch scheme is recognised for offshore work (IMCA) and in the UK (HSE list). Individual countries and employers set their own additional requirements, so always check what a specific job needs.

What is the difference between inshore and offshore diving?

Inshore (civil/harbour) work is the usual starting point. Offshore work — oil, gas and offshore wind — pays more and requires extra tickets and experience.

Is a Dutch commercial diving qualification recognised in the UK?

Yes. HSE’s "List of Approved Diving Qualifications" (dated 01 January 2026) lists "NDC Registratie Instelling B50 – [SCUBA, Surface Supplied & Surface Supplied (Top-Up)]" under Schedule 1 (offshore diving), with no listed expiry date. The earlier "Duikarbeid Categorie B50" entry also remains on the list, valid until 1 February 2027.

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